0001326160 duk:ProgressEnergyMember duk:ClosureofAshBasinsMember 2019-06-30 0001326160 duk:ResidentialMember us-gaap:NaturalGasUsRegulatedMember duk:GasUtilitiesandInfrastructureMember 2019-04-01 2019-06-30




UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 10-Q
(Mark One)
ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended June 30, 20182019
OR
¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from to
_________________________________to_________
Commission file number
Registrant, State of Incorporation or Organization,
Address of Principal Executive Offices and Telephone Number
IRS Employer Identification No.Number
 
dukeenergylogo4ca57.jpg
 
1-32853
DUKE ENERGY CORPORATION
(a Delaware corporation)
550 South Tryon Street
Charlotte, North Carolina 28202-1803
704-382-3853
20-2777218
1-32853DUKE ENERGY CORPORATION20-2777218
(a Delaware corporation)
550 South Tryon Street
Charlotte, North Carolina28202-1803
704-382-3853


Registrant, State of Incorporation     Registrant, State of Incorporation
or Organization, Address of     or Organization, Address of
Principal Executive Offices, Telephone    Principal Executive Offices, Telephone
Commission file numberRegistrant, State of Incorporation or Organization, Address of Principal Executive Offices, Telephone Number and IRS Employer    Identification NumberCommission file numberRegistrant, State of Incorporation or Organization, Address of Principal Executive Offices, Telephone    Number and IRS Employer
file numberIdentification Number    file number    Identification Number

1-4928DUKE ENERGY CAROLINAS, LLC1-3274DUKE ENERGY FLORIDA, LLC
(a North Carolina limited liability company)        (a Florida limited liability company)    
526 South Church Street299 First Avenue North
Charlotte, North Carolina28202-1803St. Petersburg, Florida33701
704-382-3853704-382-3853
56-020552059-0247770

1-15929PROGRESS ENERGY, INC.1-1232DUKE ENERGY OHIO, INC.
(a North Carolina corporation)                     (an Ohio corporation)
410 South Wilmington Street139 East Fourth Street
Raleigh, North Carolina27601-1748Cincinnati, Ohio45202
704-382-3853704-382-3853
56-215548131-0240030

1-3382DUKE ENERGY PROGRESS, LLC1-3543DUKE ENERGY INDIANA, LLC
(a North Carolina limited liability company)              (an Indiana limited liability company)
410 South Wilmington Street1000 East Main Street
Raleigh, North Carolina27601-1748Plainfield, Indiana46168
704-382-3853704-382-3853
56-016546535-0594457

1-6196PIEDMONT NATURAL GAS COMPANY, INC.
(a North Carolina corporation)
4720 Piedmont Row Drive
Charlotte, North Carolina28210
704-364-3120
56-0556998


SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:
Name of each exchange on
1-4928
DUKE ENERGY CAROLINAS, LLC
(a North Carolina limited liability company)
526 South Church Street
Charlotte, North Carolina 28202-1803
704-382-3853
56-0205520
1-3274
DUKE ENERGY FLORIDA, LLC
(a Florida limited liability company)
299 First Avenue North
St. Petersburg, Florida 33701
704-382-3853
59-0247770
1-15929Registrant
PROGRESS ENERGY, INC.
(a North Carolina corporation)
410 South Wilmington Street
Raleigh, North Carolina 27601-1748
704-382-3853
56-2155481Title of each classTrading symbolswhich registered
1-1232
DUKE ENERGY OHIO, INC.
(an Ohio corporation)
139 East Fourth Street
Cincinnati, Ohio 45202
704-382-3853
31-0240030
1-3382Duke Energy
DUKE ENERGY PROGRESS,Common Stock, $0.001 par valueDUKNew York Stock Exchange LLC
(a North Carolina limited liability company)
410 South Wilmington Street
Raleigh, North Carolina 27601-1748
704-382-3853
56-0165465

1-3543
DUKE ENERGY INDIANA, LLC
(an Indiana limited liability company)
1000 East Main Street
Plainfield, Indiana 46168
704-382-3853
35-0594457
1-6196Duke Energy
PIEDMONT NATURAL GAS COMPANY, INC.5.125% Junior Subordinated Debentures due    DUKHNew York Stock Exchange LLC
(a North Carolina corporation)
4720 Piedmont Row Drive
Charlotte, North Carolina 28210
704-364-3120
56-0556998
January 15, 2073
Duke Energy
5.625% Junior Subordinated Debentures due    DUKBNew York Stock Exchange LLC
September 15, 2078
Duke Energy
Depositary Shares, each representing a 1/1,000th    DUK PR ANew York Stock Exchange LLC
interest in a share of 5.75% Series A Cumulative
Redeemable Perpetual Preferred Stock, par value
$0.001 per share


Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
Duke Energy Corporation (Duke Energy)
Yesx
No¨ Duke Energy Florida, LLC (Duke Energy Florida)
Yesx
No¨
Duke Energy Carolinas, LLC (Duke Energy Carolinas)
Yesx
No¨ Duke Energy Ohio, Inc. (Duke Energy Ohio)
Yesx
No¨
Progress Energy, Inc. (Progress Energy)
Yesx
No¨ Duke Energy Indiana, LLC (Duke Energy Indiana)
Yesx
No¨
Duke Energy Progress, LLC (Duke Energy Progress)
Yesx
No¨ Piedmont Natural Gas Company, Inc. (Piedmont)
Yesx
No¨


Indicate by check mark whether the registrant has submitted electronically and posted on its corporate website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).
Duke Energy
Yesx
No¨ Duke Energy Florida
Yesx
No¨
Duke Energy Carolinas
Yesx
No¨ Duke Energy Ohio
Yesx
No¨
Progress Energy
Yesx
No¨ Duke Energy Indiana
Yesx
No¨
Duke Energy Progress
Yesx
No¨ Piedmont
Yesx
No¨
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Duke Energy
Large accelerated filerx
Accelerated filer¨
Non-accelerated filer¨
Smaller reporting company¨
Emerging Growth Company ¨growth company
Duke Energy Carolinas
Large accelerated filer¨
Accelerated filer¨
Non-accelerated filerx
Smaller reporting company¨
Emerging Growth Company ¨growth company
Progress Energy
Large accelerated filer¨
Accelerated filer¨
Non-accelerated filerx
Smaller reporting company¨
Emerging Growth Company ¨growth company
Duke Energy Progress
Large accelerated filer¨
Accelerated filer¨
Non-accelerated filerx
Smaller reporting company¨
Emerging Growth Company ¨growth company
Duke Energy Florida
Large accelerated filer¨
Accelerated filer¨
Non-accelerated filerx
Smaller reporting company¨
Emerging Growth Company ¨growth company
Duke Energy Ohio
Large accelerated filer¨
Accelerated filer¨
Non-accelerated filerx
Smaller reporting company¨
Emerging Growth Company ¨growth company
Duke Energy Indiana
Large accelerated filer¨
Accelerated filer¨
Non-accelerated filerx
Smaller reporting company¨
Emerging Growth Company ¨growth company
Piedmont
Large accelerated filer¨
Accelerated filer¨
Non-accelerated filerx
Smaller reporting company¨
Emerging Growth Company ¨growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
Duke Energy
Yes¨
Nox Duke Energy Florida
Yes¨
Nox
Duke Energy Carolinas
Yes¨
Nox Duke Energy Ohio
Yes¨
Nox
Progress Energy
Yes¨
Nox Duke Energy Indiana
Yes¨
Nox
Duke Energy Progress
Yes¨
Nox Piedmont
Yes¨
Nox
Number of shares of Common stock outstanding at July 31, 2018:2019:
RegistrantDescriptionShares
Duke EnergyCommon stock, $0.001 par value712,354,724728,601,060
This combined Form 10-Q is filed separately by eight registrants: Duke Energy, Duke Energy Carolinas, Progress Energy, Duke Energy Progress, Duke Energy Florida, Duke Energy Ohio, Duke Energy Indiana and Piedmont (collectively the Duke Energy Registrants). Information contained herein relating to any individual registrant is filed by such registrant solely on its own behalf. Each registrant makes no representation as to information relating exclusively to the other registrants.
Duke Energy Carolinas, Progress Energy, Duke Energy Progress, Duke Energy Florida, Duke Energy Ohio, Duke Energy Indiana and Piedmont meet the conditions set forth in General Instructions H(1)(a) and (b) of Form 10-Q and are therefore filing this form with the reduced disclosure format specified in General Instructions H(2) of Form 10-Q.







TABLE OF CONTENTS
  
   
PART I. FINANCIAL INFORMATION
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 Piedmont Natural Gas Company, Inc. Financial Statements
   
  
 Note 1 – Organization and Basis of Presentation
 Note 2 – Business Segments
 Note 3 – Regulatory Matters
 Note 4 – Commitments and Contingencies
 Note 5 – Debt and Credit Facilities
Note 6 – Asset Retirement ObligationsLeases
 Note 6 – Debt and Credit Facilities
Note 7 – GoodwillAsset Retirement Obligations
 Note 8 – Related Party TransactionsGoodwill
 Note 9 – Derivatives and Hedging
Note 10 – Investments in Debt and Equity SecuritiesRelated Party Transactions
 Note 10 – Derivatives and Hedging
Note 11 – Fair Value MeasurementsInvestments in Debt and Equity Securities
 Note 12 – Variable Interest EntitiesFair Value Measurements
 Note 13 – RevenueVariable Interest Entities
 Note 14 – Common StockRevenue
 Note 15 – Stock-Based CompensationStockholders' Equity
 Note 16 – Employee Benefit Plans
 Note 17 – Income Taxes
 Note 18 – Subsequent Events
   
   
   
   
PART II. OTHER INFORMATION
   
   
   
   
 







FORWARD LOOKING STATEMENTS


CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION
This document includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Forward-looking statements are based on management’s beliefs and assumptions and can often be identified by terms and phrases that include “anticipate,” “believe,” “intend,” “estimate,” “expect,” “continue,” “should,” “could,” “may,” “plan,” “project,” “predict,” “will,” “potential,” “forecast,” “target,” “guidance,” “outlook” or other similar terminology. Various factors may cause actual results to be materially different than the suggested outcomes within forward-looking statements; accordingly, there is no assurance that such results will be realized. These factors include, but are not limited to:
State, federal and foreign legislative and regulatory initiatives, including costs of compliance with existing and future environmental requirements, including those related to climate change, as well as rulings that affect cost and investment recovery or have an impact on rate structures or market prices;
The extent and timing of costs and liabilities to comply with federal and state laws, regulations and legal requirements related to coal ash remediation, including amounts for required closure of certain ash impoundments, are uncertain and difficult to estimate;
The ability to recover eligible costs, including amounts associated with coal ash impoundment retirement obligations and costs related to significant weather events, and to earn an adequate return on investment through rate case proceedings and the regulatory process;
The costs of decommissioning Crystal River Unit 3 and other nuclear facilities could prove to be more extensive than amounts estimated and all costs may not be fully recoverable through the regulatory process;
Costs and effects of legal and administrative proceedings, settlements, investigations and claims;
Industrial, commercial and residential growth or decline in service territories or customer bases resulting from sustained downturns of the economy and the economic health of our service territories or variations in customer usage patterns, including energy efficiency efforts and use of alternative energy sources, such as self-generation and distributed generation technologies;
Federal and state regulations, laws and other efforts designed to promote and expand the use of energy efficiency measures and distributed generation technologies, such as private solar and battery storage, in Duke Energy service territories could result in customers leaving the electric distribution system, excess generation resources as well as stranded costs;
Advancements in technology;
Additional competition in electric and natural gas markets and continued industry consolidation;
The influence of weather and other natural phenomena on operations, including the economic, operational and other effects of severe storms, hurricanes, droughts, earthquakes and tornadoes, including extreme weather associated with climate change;
The ability to successfully operate electric generating facilities and deliver electricity to customers including direct or indirect effects to the company resulting from an incident that affects the U.S. electric grid or generating resources;
The ability to obtain the necessary permits and approvals and to complete necessary or desirable pipeline expansion or infrastructure projects in our natural gas business;
Operational interruptions to our natural gas distribution and transmission activities;
The availability of adequate interstate pipeline transportation capacity and natural gas supply;
The impact on facilities and business from a terrorist attack, cybersecurity threats, data security breaches, operational accidents, information technology failures or other catastrophic events, such as fires, explosions, pandemic health events or other similar occurrences;
The inherent risks associated with the operation of nuclear facilities, including environmental, health, safety, regulatory and financial risks, including the financial stability of third-party service providers;
The timing and extent of changes in commodity prices and interest rates and the ability to recover such costs through the regulatory process, where appropriate, and their impact on liquidity positions and the value of underlying assets;
The results of financing efforts, including the ability to obtain financing on favorable terms, which can be affected by various factors, including credit ratings, interest rate fluctuations, compliance with debt covenants and conditions and general market and economic conditions;
Credit ratings of the Duke Energy Registrants may be different from what is expected;
Declines in the market prices of equity and fixed-income securities and resultant cash funding requirements for defined benefit pension plans, other post-retirement benefit plans and nuclear decommissioning trust funds;
Construction and development risks associated with the completion of the Duke Energy Registrants’ capital investment projects, including risks related to financing, obtaining and complying with terms of permits, meeting construction budgets and schedules and satisfying operating and environmental performance standards, as well as the ability to recover costs from customers in a timely manner, or at all;
Changes in rules for regional transmission organizations, including changes in rate designs and new and evolving capacity markets, and risks related to obligations created by the default of other participants;
The ability to control operation and maintenance costs;
The level of creditworthiness of counterparties to transactions;
Employee workforce factors, including the potential inability to attract and retain key personnel;
The ability of subsidiaries to pay dividends or distributions to Duke Energy Corporation holding company (the Parent);



FORWARD LOOKING STATEMENTSState, federal and foreign legislative and regulatory initiatives, including costs of compliance with existing and future environmental requirements, including those related to climate change, as well as rulings that affect cost and investment recovery or have an impact on rate structures or market prices;
The extent and timing of costs and liabilities to comply with federal and state laws, regulations and legal requirements related to coal ash remediation, including amounts for required closure of certain ash impoundments, are uncertain and difficult to estimate;
The ability to recover eligible costs, including amounts associated with coal ash impoundment retirement obligations and costs related to significant weather events, and to earn an adequate return on investment through rate case proceedings and the regulatory process;
The costs of decommissioning Crystal River Unit 3 and other nuclear facilities could prove to be more extensive than amounts estimated and all costs may not be fully recoverable through the regulatory process;
Costs and effects of legal and administrative proceedings, settlements, investigations and claims;
Industrial, commercial and residential growth or decline in service territories or customer bases resulting from sustained downturns of the economy and the economic health of our service territories or variations in customer usage patterns, including energy efficiency efforts and use of alternative energy sources, such as self-generation and distributed generation technologies;
Federal and state regulations, laws and other efforts designed to promote and expand the use of energy efficiency measures and distributed generation technologies, such as private solar and battery storage, in Duke Energy service territories could result in customers leaving the electric distribution system, excess generation resources as well as stranded costs;
Advancements in technology;
Additional competition in electric and natural gas markets and continued industry consolidation;
The influence of weather and other natural phenomena on operations, including the economic, operational and other effects of severe storms, hurricanes, droughts, earthquakes and tornadoes, including extreme weather associated with climate change;
The ability to successfully operate electric generating facilities and deliver electricity to customers including direct or indirect effects to the company resulting from an incident that affects the U.S. electric grid or generating resources;
The ability to complete necessary or desirable pipeline expansion or infrastructure projects in our natural gas business;
Operational interruptions to our natural gas distribution and transmission activities;
The availability of adequate interstate pipeline transportation capacity and natural gas supply;
The impact on facilities and business from a terrorist attack, cybersecurity threats, data security breaches and other catastrophic events, such as fires, explosions, pandemic health events or other similar occurrences;
The inherent risks associated with the operation of nuclear facilities, including environmental, health, safety, regulatory and financial risks, including the financial stability of third-party service providers;
The timing and extent of changes in commodity prices and interest rates and the ability to recover such costs through the regulatory process, where appropriate, and their impact on liquidity positions and the value of underlying assets;
The results of financing efforts, including the ability to obtain financing on favorable terms, which can be affected by various factors, including credit ratings, interest rate fluctuations, compliance with debt covenants and conditions and general market and economic conditions;
Credit ratings of the Duke Energy Registrants may be different from what is expected;
Declines in the market prices of equity and fixed-income securities and resultant cash funding requirements for defined benefit pension plans, other post-retirement benefit plans and nuclear decommissioning trust funds;
Construction and development risks associated with the completion of the Duke Energy Registrants’ capital investment projects, including risks related to financing, obtaining and complying with terms of permits, meeting construction budgets and schedules and satisfying operating and environmental performance standards, as well as the ability to recover costs from customers in a timely manner, or at all;
Changes in rules for regional transmission organizations, including changes in rate designs and new and evolving capacity markets, and risks related to obligations created by the default of other participants;
The ability to control operation and maintenance costs;
The level of creditworthiness of counterparties to transactions;
Employee workforce factors, including the potential inability to attract and retain key personnel;
The ability of subsidiaries to pay dividends or distributions to Duke Energy Corporation holding company (the Parent);
The performance of projects undertaken by our nonregulated businesses and the success of efforts to invest in and develop new opportunities;



The effect of accounting pronouncements issued periodically by accounting standard-setting bodies;
The impact of new U.S. tax legislation to our financial condition, results of operations or cash flows and our credit ratings;
The impacts from potential impairments of goodwill or equity method investment carrying values; and
The ability to implement our business strategy.

The performance of projects undertaken by our nonregulated businesses and the success of efforts to invest in and develop new opportunities;
The effect of accounting pronouncements issued periodically by accounting standard-setting bodies;
The impact of U.S. tax legislation to our financial condition, results of operations or cash flows and our credit ratings;
The impacts from potential impairments of goodwill or equity method investment carrying values; and
The ability to implement our business strategy, including enhancing existing technology systems.
Additional risks and uncertainties are identified and discussed in the Duke Energy Registrants' reports filed with the SEC and available at the SEC's website at sec.gov. In light of these risks, uncertainties and assumptions, the events described in the forward-looking statements might not occur or might occur to a different extent or at a different time than described. Forward-looking statements speak only as of the date they are made and the Duke Energy Registrants expressly disclaim an obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.





PART I. FINANCIAL INFORMATION

GLOSSARY OF TERMS



Glossary of Terms
The following terms or acronyms used in this Form 10-Q are defined below:
Term or AcronymDefinition
2013 SettlementRevised and Restated Stipulation and Settlement Agreement approved in November 2013 among Duke Energy Florida, the Florida OPC and other customer advocates
2017 SettlementSecond Revised and Restated Settlement Agreement in 2017 among Duke Energy Florida, the Florida OPC and other customer advocates, which replaces and supplants the 2013 Settlement
ACPAtlantic Coast Pipeline, LLC, a limited liability company owned by Dominion, Duke Energy and Southern Company Gas
ACP pipelineThe approximately 600-mile proposed interstate natural gas pipeline
AFSAvailable for Sale
AFUDCAllowance for funds used during construction
the AgentsWells Fargo Securities, LLC, Citigroup Global Market Inc., J.P. Morgan Securities, LLC
ALJAdministrative Law Judge
AMIAdvanced Metering Infrastructure
AMTAlternative Minimum Tax
AOCIAccumulated Other Comprehensive Income (Loss)
AROAsset retirement obligations
ATMAt-the-market
BeckjordBeckjord Generating Station
Belews CreekBelews Creek Steam Station
BisonBison Insurance Company Limited
CardinalCardinal Pipeline Company, LLC
CCCombined Cycle
CCRCoal Combustion Residuals
Citrus County CCCitrus County Combined Cycle Facility
Coal Ash ActNorth Carolina Coal Ash Management Act of 2014
the CompanyDuke Energy Corporation and its subsidiaries
ConstitutionConstitution Pipeline Company, LLC
CPCNCertificate of Public Convenience and Necessity
CPRECompetitive Procurement of Renewable Energy
CRCCinergy Receivables Company LLC
Crystal River Unit 3Crystal River Unit 3 Nuclear Plant
CWAClean Water Act
D.C. Circuit CourtU.S. Court of Appeals for the District of Columbia Circuit
DEFPFDuke Energy Florida Project Finance, LLC
DEFRDuke Energy Florida Receivables, LLC
DEPRDuke Energy Progress Receivables, LLC
DERFDuke Energy Receivables Finance Company, LLC
DRIPDividend Reinvestment Program
Duke EnergyDuke Energy Corporation (collectively with its subsidiaries)
Duke Energy OhioDuke Energy Ohio, Inc.
Duke Energy ProgressDuke Energy Progress, LLC



GLOSSARY OF TERMS


Duke Energy CarolinasDuke Energy Carolinas, LLC
Duke Energy FloridaDuke Energy Florida, LLC
Duke Energy IndianaDuke Energy Indiana, LLC
Duke Energy KentuckyDuke Energy Kentucky, Inc.
Duke Energy RegistrantsDuke Energy, Duke Energy Carolinas, Progress Energy, Duke Energy Progress, Duke Energy Florida, Duke Energy Ohio, Duke Energy Indiana and Piedmont
the EDAEquity Distribution Agreement
EDITExcess deferred income tax
EPAU.S. Environmental Protection Agency
EPCEngineering, Procurement and Construction agreement
EPSEarnings Per Share
ESPElectric Security Plan
ETREffective tax rate
Exchange ActSecurities Exchange Act of 1934
FASBFinancial Accounting Standards Board
FERCFederal Energy Regulatory Commission
FESFirstEnergy Solutions Corp.
FitchFitch Ratings, Inc.
FluorFluor Enterprises, Inc.
FPSCFlorida Public Service Commission
FTRFinancial transmission rights
FV-NIFair value through net income
GAAPGenerally accepted accounting principles in the U.S.
GAAP Reported EarningsNet Income Attributable to Duke Energy Corporation
GAAP Reported EPSDiluted EPS Attributable to Duke Energy Corporation common stockholders
GWhGigawatt-hours
Hardy StorageHardy Storage Company, LLC
HLBVHypothetical Liquidation at Book Value
ICPAInter-Company Power Agreement
IGCCIntegrated Gasification Combined Cycle
IMRIntegrity Management Rider
IRPIntegrated Resource Plan
IRSInternal Revenue Service
Investment TrustsNDTF investments and grantor trusts of Duke Energy Progress, Duke Energy Florida and Duke Energy Indiana
IURCIndiana Utility Regulatory Commission
JDAJoint Dispatch Agreement
KPSCKentucky Public Service Commission
Lee Nuclear StationWilliam States Lee III Nuclear Station
MGPManufactured gas plant
MISOMidcontinent Independent System Operator, Inc.
MMBtuMillion British Thermal Unit
Moody'sMoody's Investors Service, Inc.



GLOSSARY OF TERMS


MWMegawatt
MWhMegawatt-hour
NAVNet asset value
NCDEQNorth Carolina Department of Environmental Quality (formerly the North Carolina Department of Environment and Natural Resources)
NCUCNorth Carolina Utilities Commission
NDTFNuclear decommissioning trust funds
NMCNational Methanol Company
NPDESNational Pollutant Discharge Elimination System
NPNSNormal purchase/normal sale
NRCU.S. Nuclear Regulatory Commission
OPEBOther Post-Retirement Benefit Obligations
ORSSouth Carolina Office of Regulatory Staff
OTTIOther-than-temporary impairment
OVECOhio Valley Electric Corporation
PiedmontPiedmont Natural Gas Company, Inc.
Piedmont Term LoanTerm loan facility with commitments totaling $350M entered in June 2017
Pine NeedlePine Needle LNG Company, LLC
PioneerPioneer Transmission, LLC
PJMPJM Interconnection, LLC
PMPAPiedmont Municipal Power Agency
PPAsPurchase Power Agreements
Progress EnergyProgress Energy, Inc.
PSCSCPublic Service Commission of South Carolina
PUCOPublic Utilities Commission of Ohio
RECRenewable Energy Certificate
REC SolarREC Solar Corp.
ROU assetsRight-of-use assets
RRBARoanoke River Basin Association
SELCSouthern Environmental Law Center
S&PStandard & Poor's Rating Services
Subsidiary RegistrantsDuke Energy Carolinas, Progress Energy, Duke Energy Progress, Duke Energy Florida, Duke Energy Ohio, Duke Energy Indiana and Piedmont
the Tax ActTax Cuts and Jobs Act
TPUCTennessee Public Utility Commission
U.S.United States
VIEVariable Interest Entity
WACCWeighted Average Cost of Capital
WNAWeather normalization adjustment
W.S. Lee CCWilliam States Lee Combined Cycle Facility




FINANCIAL STATEMENTS


ITEM 1. FINANCIAL STATEMENTS


DUKE ENERGY CORPORATION
Condensed Consolidated Statements of Operations
(Unaudited)
Three Months Ended Six Months EndedThree Months Ended Six Months Ended
June 30, June 30,June 30, June 30,
(in millions, except per-share amounts)2018
 2017
 2018
 2017
2019
 2018
 2019
 2018
Operating Revenues              
Regulated electric$5,178
 $5,118
 $10,462
 $10,031
$5,423
 $5,178
 $10,708
 $10,462
Regulated natural gas291
 275
 991
 921
280
 291
 1,008
 991
Nonregulated electric and other174
 162
 325
 332
170
 174
 320
 325
Total operating revenues5,643
 5,555
 11,778
 11,284
5,873
 5,643
 12,036
 11,778
Operating Expenses    
 
    
 
Fuel used in electric generation and purchased power1,574
 1,541
 3,250
 2,990
1,641
 1,574
 3,250
 3,250
Cost of natural gas89
 76
 402
 334
76
 89
 403
 402
Operation, maintenance and other1,544
 1,441
 3,008
 2,909
1,434
 1,544
 2,853
 3,008
Depreciation and amortization973
 835
 1,940
 1,694
1,089
 973
 2,178
 1,940
Property and other taxes315
 307
 631
 611
334
 315
 677
 631
Impairment charges172
 9
 215
 9
4
 172
 4
 215
Total operating expenses4,667
 4,209
 9,446
 8,547
4,578
 4,667
 9,365
 9,446
Gains (Losses) on Sales of Other Assets and Other, net3
 7
 (97) 18
3
 3
 
 (97)
Operating Income979
 1,353
 2,235
 2,755
1,298
 979
 2,671
 2,235
Other Income and Expenses    

 

    

 

Equity in earnings of unconsolidated affiliates36
 36
 12
 65
44
 36
 87
 12
Other income and expenses, net110
 115
 196
 236
89
 110
 204
 196
Total other income and expenses146
 151
 208
 301
133
 146
 291
 208
Interest Expense518
 486
 1,033
 977
542
 518
 1,085
 1,033
Income From Continuing Operations Before Income Taxes607
 1,018
 1,410
 2,079
889
 607
 1,877
 1,410
Income Tax Expense From Continuing Operations100
 327
 281
 671
141
 100
 236
 281
Income From Continuing Operations507
 691
 1,129
 1,408
748
 507
 1,641
 1,129
Loss From Discontinued Operations, net of tax(5) (2) (5) (2)
 (5) 
 (5)
Net Income502
 689
 1,124
 1,406
748
 502
 1,641
 1,124
Less: Net Income Attributable to Noncontrolling Interests2
 3
 4
 4
Less: Net (Loss) Income Attributable to Noncontrolling Interests(84) 2
 (91) 4
Less: Preferred Dividends12
 
 12
 
Net Income Attributable to Duke Energy Corporation$500
 $686
 $1,120
 $1,402
$820
 $500
 $1,720
 $1,120
              
Earnings Per Share – Basic and Diluted              
Income from continuing operations attributable to Duke Energy Corporation common stockholders              
Basic$0.72
 $0.98
 $1.60
 $2.00
Diluted$0.72
 $0.98
 $1.60
 $2.00
Basic and Diluted$1.12
 $0.72
 $2.36
 $1.60
Loss from discontinued operations attributable to Duke Energy Corporation common stockholders              
Basic$(0.01) $
 $(0.01) $
Diluted$(0.01) $
 $(0.01) $
Basic and Diluted$
 $(0.01) $
 $(0.01)
Net income attributable to Duke Energy Corporation common stockholders              
Basic$0.71
 $0.98
 $1.59
 $2.00
Diluted$0.71
 $0.98
 $1.59
 $2.00
Basic and Diluted$1.12
 $0.71
 $2.36
 $1.59
Weighted average shares outstanding              
Basic703
 700
 702
 700
728
 703
 728
 702
Diluted704
 700
 702
 700
728
 704
 728
 702

See Notes to Condensed Consolidated Financial Statements
9



PART I
FINANCIAL STATEMENTS


DUKE ENERGY CORPORATION
Condensed Consolidated Statements of Comprehensive Income
(Unaudited)
 Three Months Ended Six Months Ended
 June 30, June 30,
(in millions)2019
 2018
 2019
 2018
Net Income$748
 $502
 $1,641
 $1,124
Other Comprehensive (Loss) Income, net of tax       
Pension and OPEB adjustments3
 1
 3
 2
Net unrealized (losses) gains on cash flow hedges(29) 1
 (46) 13
Reclassification into earnings from cash flow hedges2
 (2) 3
 (1)
Unrealized gains (losses) on available-for-sale securities4
 (2) 8
 (5)
Other Comprehensive (Loss) Income, net of tax(20) (2) (32) 9
Comprehensive Income728
 500
 1,609
 1,133
Less: Comprehensive (Loss) Income Attributable to Noncontrolling Interests(84) 2
 (91) 4
Less: Preferred Dividends12
 
 12
 
Comprehensive Income Attributable to Duke Energy Corporation$800
 $498
 $1,688
 $1,129



See Notes to Condensed Consolidated Financial Statements
10



FINANCIAL STATEMENTS
 Three Months Ended Six Months Ended
 June 30, June 30,
(in millions)2018
 2017
 2018
 2017
Net Income$502
 $689
 $1,124
 $1,406
Other Comprehensive (Loss) Income, net of tax       
Pension and OPEB adjustments1
 1
 2
 2
Net unrealized gains (losses) on cash flow hedges1
 (6) 13
 (4)
Reclassification into earnings from cash flow hedges(2) 4
 (1) 5
Unrealized (losses) gains on available-for-sale securities(2) 4
 (5) 8
Other Comprehensive (Loss) Income, net of tax(2) 3
 9
 11
Comprehensive Income500
 692
 1,133
 1,417
Less: Comprehensive Income Attributable to Noncontrolling Interests2
 3
 4
 4
Comprehensive Income Attributable to Duke Energy Corporation$498
 $689
 $1,129
 $1,413


PART I


DUKE ENERGY CORPORATION
Condensed Consolidated Balance Sheets
(Unaudited)
(in millions)June 30, 2018 December 31, 2017June 30, 2019 December 31, 2018
ASSETS      
Current Assets      
Cash and cash equivalents$304
 $358
$336
 $442
Receivables (net of allowance for doubtful accounts of $18 at 2018 and $14 at 2017)612
 779
Receivables of VIEs (net of allowance for doubtful accounts of $56 at 2018 and $54 at 2017)2,205
 1,995
Receivables (net of allowance for doubtful accounts of $16 at 2019 and 2018)646
 962
Receivables of VIEs (net of allowance for doubtful accounts of $55 at 2019 and 2018)2,153
 2,172
Inventory3,177
 3,250
3,189
 3,084
Regulatory assets (includes $51 at 2018 and 2017 related to VIEs)1,741
 1,437
Other437
 634
Regulatory assets (includes $52 at 2019 and 2018 related to VIEs)1,918
 2,005
Other (includes $140 at 2019 and $162 at 2018 related to VIEs)1,267
 1,049
Total current assets8,476
 8,453
9,509
 9,714
Property, Plant and Equipment      
Cost130,616
 127,507
141,363
 134,458
Accumulated depreciation and amortization(42,499) (41,537)(44,482) (43,126)
Generation facilities to be retired, net378
 421
317
 362
Net property, plant and equipment88,495
 86,391
97,198
 91,694
Other Noncurrent Assets      
Goodwill19,396
 19,396
19,303
 19,303
Regulatory assets (includes $1,071 at 2018 and $1,091 at 2017 related to VIEs)12,505
 12,442
Regulatory assets (includes $1,019 at 2019 and $1,041 at 2018 related to VIEs)13,393
 13,617
Nuclear decommissioning trust funds7,132
 7,097
7,621
 6,720
Operating lease right-of-use assets, net1,735
 
Investments in equity method unconsolidated affiliates1,168
 1,175
1,715
 1,409
Other3,087
 2,960
Other (includes $289 at 2019 and $261 at 2018 related to VIEs)2,975
 2,935
Total other noncurrent assets43,288
 43,070
46,742
 43,984
Total Assets$140,259
 $137,914
$153,449
 $145,392
LIABILITIES AND EQUITY      
Current Liabilities      
Accounts payable$2,686
 $3,043
$2,512
 $3,487
Notes payable and commercial paper3,329
 2,163
3,793
 3,410
Taxes accrued494
 551
521
 577
Interest accrued530
 525
564
 559
Current maturities of long-term debt (includes $229 at 2018 and $225 at 2017 related to VIEs)2,852
 3,244
Current maturities of long-term debt (includes $232 at 2019 and $227 at 2018 related to VIEs)2,698
 3,406
Asset retirement obligations716
 689
739
 919
Regulatory liabilities485
 402
600
 598
Other1,699
 1,865
2,020
 2,085
Total current liabilities12,791
 12,482
13,447
 15,041
Long-Term Debt (includes $4,179 at 2018 and $4,306 at 2017 related to VIEs)49,863
 49,035
Long-Term Debt (includes $4,070 at 2019 and $3,998 at 2018 related to VIEs)54,342
 51,123
Other Noncurrent Liabilities      
Deferred income taxes6,977
 6,621
8,532
 7,806
Asset retirement obligations9,753
 9,486
11,889
 9,548
Regulatory liabilities15,355
 15,330
15,294
 14,834
Operating lease liabilities1,502
 
Accrued pension and other post-retirement benefit costs1,014
 1,103
959
 988
Investment tax credits534
 539
569
 568
Other1,457
 1,581
Other (includes $222 at 2019 and $212 at 2018 related to VIEs)1,583
 1,650
Total other noncurrent liabilities35,090
 34,660
40,328
 35,394
Commitments and Contingencies   


 


Equity      
Common stock, $0.001 par value, 2 billion shares authorized; 712 million shares outstanding at 2018 and 700 million shares outstanding at 20171
 1
Preferred stock, $0.001 par value, 40 million depositary shares authorized and outstanding at 2019973
 
Common stock, $0.001 par value, 2 billion shares authorized; 728 million shares outstanding at 2019 and 727 million shares outstanding at 20181
 1
Additional paid-in capital39,682
 38,792
40,885
 40,795
Retained earnings2,894
 3,013
3,502
 3,113
Accumulated other comprehensive loss(70) (67)(148) (92)
Total Duke Energy Corporation stockholders' equity42,507
 41,739
45,213
 43,817
Noncontrolling interests8
 (2)119
 17
Total equity42,515
 41,737
45,332
 43,834
Total Liabilities and Equity$140,259
 $137,914
$153,449
 $145,392

See Notes to Condensed Consolidated Financial Statements
11



PART I
FINANCIAL STATEMENTS


DUKE ENERGY CORPORATION
Condensed Consolidated Statements of Cash Flows
(Unaudited)
Six Months EndedSix Months Ended
June 30,June 30,
(in millions)2018
 2017
2019
 2018
CASH FLOWS FROM OPERATING ACTIVITIES      
Net income$1,124
 $1,406
$1,641
 $1,124
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation, amortization and accretion (including amortization of nuclear fuel)2,250
 1,953
2,483
 2,250
Equity component of AFUDC(106) (125)(67) (106)
Losses (gains) on sales of other assets97
 (20)
Losses on sales of other assets
 97
Impairment charges215
 9
4
 215
Deferred income taxes289
 669
527
 289
Equity in earnings of unconsolidated affiliates(12) (65)(87) (12)
Accrued pension and other post-retirement benefit costs31
 13
4
 31
Contributions to qualified pension plans(141) 

 (141)
Payments for asset retirement obligations(245) (272)(336) (245)
Payment for disposal of other assets(105) 

 (105)
Other rate case adjustments37
 

 37
Provision for rate refunds281
 
57
 281
(Increase) decrease in      
Net realized and unrealized mark-to-market and hedging transactions7
 (12)(11) 7
Receivables(27) 293
304
 (27)
Inventory70
 153
(110) 70
Other current assets21
 (168)(265) 21
Increase (decrease) in      
Accounts payable(142) (505)(700) (142)
Taxes accrued(58) 41
(56) (58)
Other current liabilities(214) (531)(378) (214)
Other assets(112) (37)7
 (112)
Other liabilities42
 (2)39
 42
Net cash provided by operating activities3,302
 2,800
3,056
 3,302
CASH FLOWS FROM INVESTING ACTIVITIES      
Capital expenditures(4,375) (3,931)(5,465) (4,375)
Contributions to equity method investments(140) (287)(162) (140)
Purchases of debt and equity securities(1,908) (2,412)(2,316) (1,908)
Proceeds from sales and maturities of debt and equity securities1,866
 2,439
2,302
 1,866
Other(88) (153)(147) (88)
Net cash used in investing activities(4,645) (4,344)(5,788) (4,645)
CASH FLOWS FROM FINANCING ACTIVITIES      
Proceeds from the:      
Issuance of long-term debt2,727
 2,734
4,622
 2,727
Issuance of preferred stock973
 
Issuance of common stock820
 
27
 820
Payments for the redemption of long-term debt(2,190) (1,009)(2,155) (2,190)
Proceeds from the issuance of short-term debt with original maturities greater than 90 days201
 230
240
 201
Payments for the redemption of short-term debt with original maturities greater than 90 days(160) (32)(299) (160)
Notes payable and commercial paper1,090
 783
383
 1,090
Dividends paid(1,199) (1,200)(1,312) (1,199)
Other(24) (32)143
 (24)
Net cash provided by financing activities1,265
 1,474
2,622
 1,265
Net decrease in cash, cash equivalents and restricted cash(78) (70)(110) (78)
Cash, cash equivalents and restricted cash at beginning of period505
 541
591
 505
Cash, cash equivalents and restricted cash at end of period$427
 $471
$481
 $427
Supplemental Disclosures:      
Significant non-cash transactions:      
Accrued capital expenditures$978
 $589
$917
 $978
Non-cash dividends52
 
54
 52

See Notes to Condensed Consolidated Financial Statements
12



PART I

FINANCIAL STATEMENTS




DUKE ENERGY CORPORATION
Condensed Consolidated Statements of Changes in Equity
(Unaudited)
Three Months Ended June 30, 2018 and 2019
   Accumulated Other Comprehensive 
        Accumulated Other Comprehensive Income (Loss)          (Loss) Income 
          Net Unrealized
   Total
       Net Unrealized
 Total
 
        Net Gains
 (Losses) Gains
   Duke Energy
       Net Gains
(Losses) Gains
 Duke Energy
 
Common
   Additional
   (Losses) on
 on Available-
 Pension and
 Corporation
     Common
 Additional
 (Losses) on
on Available-
Pension and
Corporation
 
Stock
 Common
 Paid-in
 Retained
 Cash Flow
 for-Sale-
 OPEB
 Stockholders'
 Noncontrolling
 Total
Preferred
Stock
Common
Paid-in
Retained
Cash Flow
for-Sale-
OPEB
Stockholders'
Noncontrolling
Total
(in millions)Shares
 Stock
 Capital
 Earnings
 Hedges
 Securities
 Adjustments
 Equity
 Interests
 Equity
Stock
Shares
Stock
Capital
Earnings
Hedges
Securities
Adjustments
Equity
Interests
Equity
Balance at December 31, 2016700
 $1
 $38,741
 $2,384
 $(20) $(1) $(72) $41,033
 $8
 $41,041
Balance at March 31, 2018$
701
$1
$38,839
$3,021
$3
$(4)$(68)$41,792
$6
$41,798
Net income
 
 
 1,402
 
 
 
 1,402
 4
 1,406




500



500
2
502
Other comprehensive income
 
 
 
 1
 8
 2
 11
 
 11
Other comprehensive (loss) income




(1)(2)1
(2)
(2)
Common stock issuances, including dividend reinvestment and employee benefits
 
 17
 
 
 
 
 17
 
 17

11

843




843

843
Common stock dividends
 
 
 (1,200) 
 
 
 (1,200) 
 (1,200)



(626)


(626)
(626)
Distributions to noncontrolling interest in subsidiaries
 
 
 
 
 
 
 
 (2) (2)
Other(a)

 
 
 21
 
 
 
 21
 
 21
Balance at June 30, 2017700
 $1

$38,758

$2,607

$(19)
$7

$(70)
$41,284

$10

$41,294
Other



(1)
1




Balance at June 30, 2018$
712
$1
$39,682
$2,894
$2
$(5)$(67)$42,507
$8
$42,515
                      
Balance at December 31, 2017700
 $1
 $38,792
 $3,013
 $(10) $12
 $(69) $41,739
 $(2) $41,737
Net income
 
 
 1,120
 
 
 
 1,120
 4
 1,124
Other comprehensive income (loss)
 
 
 
 12
 (5) 2
 9
 
 9
Balance at March 31, 2019$974
728
$1
$40,823
$3,360
$(36)$
$(92)$45,030
$15
$45,045
Net income (loss)



820



820
(84)736
Other comprehensive (loss) income




(27)4
3
(20)
(20)
Preferred stock issuances, net of issuance costs(1)






(1)
(1)
Common stock issuances, including dividend reinvestment and employee benefits12
 
 890
 
 
 
 
 890
 
 890



61




61

61
Common stock dividends
 
 
 (1,251) 
 
 
 (1,251) 
 (1,251)



(678)


(678)
(678)
Contribution from noncontrolling interest in subsidiaries(c)









193
193
Distributions to noncontrolling interest in subsidiaries
 
 
 
 
 
 
 
 (1) (1)








(1)(1)
Other(b)

 
 
 12
 
 (12) 
 
 7
 7
Balance at June 30, 2018712

$1

$39,682

$2,894

$2

$(5)
$(67)
$42,507

$8

$42,515
Other


1




1
(4)(3)
Balance at June 30, 2019$973
728
$1
$40,885
$3,502
$(63)$4
$(89)$45,213
$119
$45,332

See Notes to Condensed Consolidated Financial Statements
13


FINANCIAL STATEMENTS




DUKE ENERGY CORPORATION
Condensed Consolidated Statements of Changes in Equity
(Unaudited)
 Six Months Ended June 30, 2018 and 2019
      Accumulated Other Comprehensive   
       (Loss) Income   
       Net Unrealized
 Total
  
      Net Gains
(Losses) Gains
 Duke Energy
  
  Common
 Additional
 (Losses) on
on Available-
Pension and
Corporation
  
 Preferred
Stock
Common
Paid-in
Retained
Cash Flow
for-Sale-
OPEB
Stockholders'
Noncontrolling
Total
(in millions)Stock
Shares
Stock
Capital
Earnings
Hedges
Securities
Adjustments
Equity
Interests
Equity
Balance at December 31, 2017$
700
$1
$38,792
$3,013
$(10)$12
$(69)$41,739
$(2)$41,737
Net income



1,120



1,120
4
1,124
Other comprehensive income (loss)




12
(5)2
9

9
Common stock issuances, including dividend reinvestment and employee benefits
12

890




890

890
Common stock dividends



(1,251)


(1,251)
(1,251)
Distributions to noncontrolling interest in subsidiaries








(1)(1)
Other(a)




12

(12)

7
7
Balance at June 30, 2018$
712
$1
$39,682
$2,894
$2
$(5)$(67)$42,507
$8
$42,515
            
Balance at December 31, 2018$
727
$1
$40,795
$3,113
$(14)$(3)$(75)$43,817
$17
$43,834
Net income (loss)



1,720



1,720
(91)1,629
Other comprehensive (loss) income




(43)8
3
(32)
(32)
Preferred stock issuances, net of issuance costs(b)
973







973

973
Common stock issuances, including dividend reinvestment and employee benefits
1

89




89

89
Common stock dividends



(1,354)


(1,354)
(1,354)
Contributions from noncontrolling interest in subsidiaries(c)









193
193
Distributions to noncontrolling interest in subsidiaries








(1)(1)
Other(d)



1
23
(6)(1)(17)
1
1
Balance at June 30, 2019$973
728
$1
$40,885
$3,502
$(63)$4
$(89)$45,213
$119
$45,332

(a)Cumulative-effect adjustment due to implementation of a new accounting standard related to stock-based compensation and the associated income taxes.
(b)Amounts in Retained Earnings and Accumulated Other Comprehensive Loss(Loss) Income represent a cumulative-effect adjustment due to implementation of a new accounting standard related to Financial Instruments Classification and Measurement. See Note 1 for more information.
(b)Duke Energy issued 40 million depositary shares of preferred stock in the first quarter of 2019.
(c)Relates to tax equity financing activity in the Commercial Renewables segment.
(d)Amounts in Retained Earnings and Accumulated Other Comprehensive (Loss) Income primarily represent impacts to accumulated other comprehensive income due to implementation of a new accounting standard related to Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income.

See Notes to Condensed Consolidated Financial Statements
14



PART I
FINANCIAL STATEMENTS




DUKE ENERGY CAROLINAS, LLC
Condensed Consolidated Statements of Operations and Comprehensive Income
(Unaudited)
Three Months Ended Six Months EndedThree Months Ended Six Months Ended
June 30, June 30,June 30, June 30,
(in millions)2018
 2017
 2018
 2017
2019
 2018
 2019
 2018
Operating Revenues$1,672
 $1,729
 $3,435
 $3,445
$1,713
 $1,672
 $3,457
 $3,435
Operating Expenses              
Fuel used in electric generation and purchased power407
 435
 880
 863
395
 407
 867
 880
Operation, maintenance and other499
 483
 950
 978
441
 499
 881
 950
Depreciation and amortization289
 269
 561
 523
346
 289
 663
 561
Property and other taxes75
 71
 147
 139
75
 75
 155
 147
Impairment charges177
 
 190
 
5
 177
 5
 190
Total operating expenses1,447
 1,258
 2,728
 2,503
1,262
 1,447
 2,571
 2,728
Losses on Sales of Other Assets and Other, net(1) 
 (1) 

 (1) 
 (1)
Operating Income224
 471
 706
 942
451
 224
 886
 706
Other Income and Expenses, net35
 50
 74
 100
41
 35
 72
 74
Interest Expense110
 103
 217
 206
117
 110
 227
 217
Income Before Income Taxes149
 418
 563
 836
375
 149
 731
 563
Income Tax Expense32
 145
 123
 293
74
 32
 137
 123
Net Income$117
 $273
 $440
 $543
$301
 $117
 $594
 $440
Other Comprehensive Income, net of tax              
Reclassification into earnings from cash flow hedges
 1
 1
 1

 
 
 1
Comprehensive Income$117
 $274
 $441
 $544
$301
 $117
 $594
 $441

See Notes to Condensed Consolidated Financial Statements
15



PART I
FINANCIAL STATEMENTS


DUKE ENERGY CAROLINAS, LLC
Condensed Consolidated Balance Sheets
(Unaudited)
(in millions)June 30, 2018
 December 31, 2017
June 30, 2019
 December 31, 2018
ASSETS      
Current Assets      
Cash and cash equivalents$16
 $16
$15
 $33
Receivables (net of allowance for doubtful accounts of $2 at 2018 and 2017)172
 200
Receivables of VIEs (net of allowance for doubtful accounts of $7 at 2018 and 2017)704
 640
Receivables (net of allowance for doubtful accounts of $2 at 2019 and 2018)164
 219
Receivables of VIEs (net of allowance for doubtful accounts of $7 at 2019 and 2018)671
 699
Receivables from affiliated companies117
 95
101
 182
Inventory984
 971
1,025
 948
Regulatory assets420
 299
605
 520
Other21
 19
17
 72
Total current assets2,434
 2,240
2,598
 2,673
Property, Plant and Equipment      
Cost43,429
 42,939
47,249
 44,741
Accumulated depreciation and amortization(15,248) (15,063)(16,047) (15,496)
Net property, plant and equipment28,181
 27,876
31,202
 29,245
Other Noncurrent Assets      
Regulatory assets3,234
 2,853
3,392
 3,457
Nuclear decommissioning trust funds3,790
 3,772
4,059
 3,558
Operating lease right-of-use assets, net141
 
Other1,036
 979
1,085
 1,027
Total other noncurrent assets8,060
 7,604
8,677
 8,042
Total Assets$38,675
 $37,720
$42,477
 $39,960
LIABILITIES AND EQUITY      
Current Liabilities      
Accounts payable$809
 $842
$640
 $988
Accounts payable to affiliated companies158
 209
189
 230
Notes payable to affiliated companies740
 104
804
 439
Taxes accrued158
 234
209
 171
Interest accrued109
 108
106
 102
Current maturities of long-term debt505
 1,205
456
 6
Asset retirement obligations227
 337
203
 290
Regulatory liabilities131
 126
191
 199
Other412
 486
499
 571
Total current liabilities3,249

3,651
3,297

2,996
Long-Term Debt9,589
 8,598
10,208
 10,633
Long-Term Debt Payable to Affiliated Companies300
 300
300
 300
Other Noncurrent Liabilities      
Deferred income taxes3,507
 3,413
3,779
 3,689
Asset retirement obligations3,592
 3,273
5,139
 3,659
Regulatory liabilities6,292
 6,231
6,392
 5,999
Operating lease liabilities117
 
Accrued pension and other post-retirement benefit costs99
 95
90
 99
Investment tax credits230
 232
234
 231
Other515
 566
645
 671
Total other noncurrent liabilities14,235
 13,810
16,396
 14,348
Commitments and Contingencies

 



 

Equity      
Member's equity11,308
 11,368
12,283
 11,689
Accumulated other comprehensive loss(6) (7)(7) (6)
Total equity11,302
 11,361
12,276
 11,683
Total Liabilities and Equity$38,675
 $37,720
$42,477
 $39,960

See Notes to Condensed Consolidated Financial Statements
16



PART I
FINANCIAL STATEMENTS


DUKE ENERGY CAROLINAS, LLC
Condensed Consolidated Statements of Cash Flows
(Unaudited)
Six Months EndedSix Months Ended
June 30,June 30,
(in millions)2018
 2017
2019
 2018
CASH FLOWS FROM OPERATING ACTIVITIES      
Net income$440
 $543
$594
 $440
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization (including amortization of nuclear fuel)707
 688
804
 707
Equity component of AFUDC(39) (59)(21) (39)
Losses on sales of other assets1
 

 1
Impairment charges190
 
5
 190
Deferred income taxes90
 283
54
 90
Accrued pension and other post-retirement benefit costs2
 
(4) 2
Contributions to qualified pension plans(46) 

 (46)
Payments for asset retirement obligations(114) (123)(131) (114)
Provision for rate refunds121
 
35
 121
(Increase) decrease in      
Net realized and unrealized mark-to-market and hedging transactions8
 24
(8) 8
Receivables(33) 36
83
 (33)
Receivables from affiliated companies(22) 78
81
 (22)
Inventory(16) (14)(77) (16)
Other current assets(33) (21)(133) (33)
Increase (decrease) in      
Accounts payable(59) (125)(282) (59)
Accounts payable to affiliated companies(51) (120)(41) (51)
Taxes accrued(78) 19
38
 (78)
Other current liabilities(123) (140)(71) (123)
Other assets(6) (44)91
 (6)
Other liabilities(29) (15)(18) (29)
Net cash provided by operating activities910
 1,010
999
 910
CASH FLOWS FROM INVESTING ACTIVITIES      
Capital expenditures(1,270) (1,092)(1,357) (1,270)
Purchases of debt and equity securities(976) (1,225)(1,114) (976)
Proceeds from sales and maturities of debt and equity securities976
 1,228
1,114
 976
Notes receivable from affiliated companies
 66
Other(64) (29)(46) (64)
Net cash used in investing activities(1,334) (1,052)(1,403) (1,334)
CASH FLOWS FROM FINANCING ACTIVITIES      
Proceeds from the issuance of long-term debt991
 
25
 991
Payments for the redemption of long-term debt(702) (114)(3) (702)
Notes payable to affiliated companies636
 534
365
 636
Distributions to parent(500) (375)
 (500)
Other(1) (1)(1) (1)
Net cash provided by financing activities424
 44
386
 424
Net increase in cash and cash equivalents
 2
Net decrease in cash and cash equivalents(18) 
Cash and cash equivalents at beginning of period16
 14
33
 16
Cash and cash equivalents at end of period$16
 $16
$15
 $16
Supplemental Disclosures:      
Significant non-cash transactions:      
Accrued capital expenditures$343
 $200
$252
 $343

See Notes to Condensed Consolidated Financial Statements
17



PART I
FINANCIAL STATEMENTS


DUKE ENERGY CAROLINAS, LLC
Condensed Consolidated Statements of Changes in Equity
(Unaudited)
Three Months Ended June 30, 2018 and 2019
  Accumulated Other    Accumulated Other  
  Comprehensive    Comprehensive  
  Loss    Loss  
  Net Losses on
    Net Losses on
  
Member's
 Cash Flow
 Total
Member's
 Cash Flow
 Total
(in millions)Equity
 Hedges
 Equity
Equity
 Hedges
 Equity
Balance at December 31, 2016$10,781
 $(9) $10,772
Balance at March 31, 2018$11,441
 $(6) $11,435
Net income543
 
 543
117
 
 117
Other comprehensive income
 1
 1
Distributions to parent(375) 
 (375)(250) 
 (250)
Other(2) 
 (2)
Balance at June 30, 2017$10,947
 $(8) $10,939
Balance at June 30, 2018$11,308
 $(6) $11,302
          
Balance at March 31, 2019$11,982
 $(7) $11,975
Net income301
 
 301
Balance at June 30, 2019$12,283
 $(7) $12,276
     
Six Months Ended June 30, 2018 and 2019
  Accumulated Other  
  Comprehensive  
  Loss  
  Net Losses on
  
Member's
 Cash Flow
 Total
(in millions)Equity
 Hedges
 Equity
Balance at December 31, 2017$11,368
 $(7) $11,361
$11,368
 $(7) $11,361
Net income440
 
 440
440
 
 440
Other comprehensive income
 1
 1

 1
 1
Distributions to parent(500) 
 (500)(500) 
 (500)
Balance at June 30, 2018$11,308
 $(6) $11,302
$11,308
 $(6) $11,302
     
Balance at December 31, 2018$11,689
 $(6) $11,683
Net income594
 
 594
Other
 (1) (1)
Balance at June 30, 2019$12,283
 $(7) $12,276

See Notes to Condensed Consolidated Financial Statements
18



PART I
FINANCIAL STATEMENTS




PROGRESS ENERGY, INC.
Condensed Consolidated Statements of Operations and Comprehensive Income
(Unaudited)
Three Months Ended Six Months EndedThree Months Ended Six Months Ended
June 30, June 30,June 30, June 30,
(in millions)2018
 2017
 2018
 2017
2019
 2018
 2019
 2018
Operating Revenues$2,498
 $2,392
 $5,074
 $4,571
$2,744
 $2,498
 $5,316
 $5,074
Operating Expenses              
Fuel used in electric generation and purchased power895
 831
 1,871
 1,557
988
 895
 1,913
 1,871
Operation, maintenance and other610
 549
 1,233
 1,109
606
 610
 1,173
 1,233
Depreciation and amortization380
 311
 764
 624
426
 380
 881
 764
Property and other taxes131
 129
 254
 246
143
 131
 280
 254
Impairment charges4
 2
 33
 2

 4
 
 33
Total operating expenses2,020
 1,822
 4,155
 3,538
2,163
 2,020
 4,247
 4,155
Gains on Sales of Other Assets and Other, net6
 6
 12
 14
(Losses) Gains on Sales of Other Assets and Other, net(1) 6
 (1) 12
Operating Income484
 576
 931
 1,047
580
 484
 1,068
 931
Other Income and Expenses, net42
 36
 77
 76
34
 42
 65
 77
Interest Expense203
 196
 412
 402
219
 203
 438
 412
Income Before Income Taxes323
 416
 596
 721
395
 323
 695
 596
Income Tax Expense56
 139
 92
 243
66
 56
 118
 92
Net Income267
 277
 504
 478
329
 267
 577
 504
Less: Net Income Attributable to Noncontrolling Interests2
 3
 4
 5
1
 2
 
 4
Net Income Attributable to Parent$265
 $274
 $500
 $473
$328
 $265
 $577
 $500
              
Net Income$267
 $277
 $504
 $478
$329
 $267
 $577
 $504
Other Comprehensive Income, net of tax              
Pension and OPEB adjustments2
 1
 2
 2
1
 2
 2
 2
Net unrealized gains on cash flow hedges1
 5
 3
 6
1
 1
 3
 3
Unrealized (losses) gains on available-for-sale securities(1) 1
 (1) 2
Unrealized gains (losses) on available-for-sale securities1
 (1) 1
 (1)
Other Comprehensive Income, net of tax2

7

4

10
3

2

6

4
Comprehensive Income269
 284
 508
 488
332
 269
 583
 508
Less: Comprehensive Income Attributable to Noncontrolling Interests2
 3
 4
 5
1
 2
 
 4
Comprehensive Income Attributable to Parent$267

$281

$504

$483
$331

$267

$583

$504



See Notes to Condensed Consolidated Financial Statements
19



PART I
FINANCIAL STATEMENTS


PROGRESS ENERGY, INC.
Condensed Consolidated Balance Sheets
(Unaudited)
(in millions)June 30, 2018
 December 31, 2017
June 30, 2019
 December 31, 2018
ASSETS      
Current Assets      
Cash and cash equivalents$37
 $40
$51
 $67
Receivables (net of allowance for doubtful accounts of $5 at 2018 and $4 at 2017)130
 123
Receivables of VIEs (net of allowance for doubtful accounts of $7 at 2018 and 2017)969
 780
Receivables (net of allowance for doubtful accounts of $6 at 2019 and $5 at 2018)139
 220
Receivables of VIEs (net of allowance for doubtful accounts of $8 at 2019 and 2018)998
 909
Receivables from affiliated companies3
 31
49
 168
Notes receivable from affiliated companies309
 240
Inventory1,521
 1,592
1,480
 1,459
Regulatory assets (includes $51 at 2018 and 2017 related to VIEs)970
 741
Other356
 334
Regulatory assets (includes $52 at 2019 and 2018 related to VIEs)1,024
 1,137
Other (includes $31 at 2019 and $39 at 2018 related to VIEs)107
 125
Total current assets4,295
 3,881
3,848
 4,085
Property, Plant and Equipment      
Cost48,896
 47,323
52,758
 50,260
Accumulated depreciation and amortization(16,380) (15,857)(16,808) (16,398)
Generation facilities to be retired, net378
 421
317
 362
Net property, plant and equipment32,894
 31,887
36,267
 34,224
Other Noncurrent Assets      
Goodwill3,655
 3,655
3,655
 3,655
Regulatory assets (includes $1,071 at 2018 and $1,091 at 2017 related to VIEs)5,736
 6,010
Regulatory assets (includes $1,019 at 2019 and $1,041 at 2018 related to VIEs)6,423
 6,564
Nuclear decommissioning trust funds3,342
 3,324
3,562
 3,162
Operating lease right-of-use assets, net839
 
Other992
 931
982
 974
Total other noncurrent assets13,725
 13,920
15,461
 14,355
Total Assets$50,914
 $49,688
$55,576
 $52,664
LIABILITIES AND EQUITY      
Current Liabilities      
Accounts payable$816
 $1,006
$720
 $1,172
Accounts payable to affiliated companies232
 251
235
 360
Notes payable to affiliated companies1,152
 805
1,920
 1,235
Taxes accrued181
 101
191
 109
Interest accrued211
 212
226
 246
Current maturities of long-term debt (includes $53 at 2018 and 2017 related to VIEs)1,321
 771
Current maturities of long-term debt (includes $54 at 2019 and $53 at 2018 related to VIEs)1,026
 1,672
Asset retirement obligations386
 295
416
 514
Regulatory liabilities233
 213
250
 280
Other711
 729
863
 821
Total current liabilities5,243
 4,383
5,847
 6,409
Long-Term Debt (includes $1,660 at 2018 and $1,689 at 2017 related to VIEs)16,723
 16,916
Long-Term Debt (includes $1,657 at 2019 and $1,636 at 2018 related to VIEs)18,023
 17,089
Long-Term Debt Payable to Affiliated Companies150
 150
150
 150
Other Noncurrent Liabilities      
Deferred income taxes3,806
 3,502
4,141
 3,941
Asset retirement obligations5,052
 5,119
5,777
 4,897
Regulatory liabilities5,193
 5,306
5,191
 5,049
Operating lease liabilities747
 
Accrued pension and other post-retirement benefit costs519
 545
509
 521
Other256
 302
352
 351
Total other noncurrent liabilities14,826
 14,774
16,717
 14,759
Commitments and Contingencies
 

 
Equity      
Common stock, $0.01 par value, 100 shares authorized and outstanding at 2018 and 2017
 
Common stock, $0.01 par value, 100 shares authorized and outstanding at 2019 and 2018
 
Additional paid-in capital9,143
 9,143
9,143
 9,143
Retained earnings4,855
 4,350
5,715
 5,131
Accumulated other comprehensive loss(26) (25)(21) (20)
Total Progress Energy, Inc. stockholders' equity13,972
 13,468
14,837
 14,254
Noncontrolling interests
 (3)2
 3
Total equity13,972
 13,465
14,839
 14,257
Total Liabilities and Equity$50,914
 $49,688
$55,576
 $52,664

See Notes to Condensed Consolidated Financial Statements
20



PART I
FINANCIAL STATEMENTS


PROGRESS ENERGY, INC.
Condensed Consolidated Statements of Cash Flows
(Unaudited)
Six Months EndedSix Months Ended
June 30,June 30,
(in millions)2018
 2017
2019
 2018
CASH FLOWS FROM OPERATING ACTIVITIES      
Net income$504
 $478
$577
 $504
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation, amortization and accretion (including amortization of nuclear fuel)945
 733
1,061
 945
Equity component of AFUDC(52) (48)(31) (52)
Gains on sales of other assets(12) (15)
Losses (gains) on sales of other assets1
 (12)
Impairment charges33
 2

 33
Deferred income taxes240
 412
126
 240
Accrued pension and other post-retirement benefit costs12
 (5)8
 12
Contributions to qualified pension plans(45) 

 (45)
Payments for asset retirement obligations(108) (128)(183) (108)
Other rate case adjustments37
 

 37
Provision for rate refunds65
 
10
 65
(Increase) decrease in      
Net realized and unrealized mark-to-market and hedging transactions14
 
(1) 14
Receivables(196) (64)(42) (196)
Receivables from affiliated companies28
 99
119
 28
Inventory71
 95
(26) 71
Other current assets(214) (220)114
 (214)
Increase (decrease) in      
Accounts payable15
 (211)(196) 15
Accounts payable to affiliated companies(19) (140)(125) (19)
Taxes accrued80
 81
82
 80
Other current liabilities(58) (148)(162) (58)
Other assets(186) (69)(83) (186)
Other liabilities4
 (18)17
 4
Net cash provided by operating activities1,158
 834
1,266
 1,158
CASH FLOWS FROM INVESTING ACTIVITIES      
Capital expenditures(1,727) (1,733)(1,988) (1,727)
Purchases of debt and equity securities(812) (1,108)(1,094) (812)
Proceeds from sales and maturities of debt and equity securities820
 1,123
1,089
 820
Notes receivable from affiliated companies(69) (60)
 (69)
Other(81) (22)(59) (81)
Net cash used in investing activities(1,869) (1,800)(2,052) (1,869)
CASH FLOWS FROM FINANCING ACTIVITIES      
Proceeds from the issuance of long-term debt989
 923
1,295
 989
Payments for the redemption of long-term debt(635) (326)(1,188) (635)
Notes payable to affiliated companies347
 341
685
 347
Other(3) (3)2
 (3)
Net cash provided by financing activities698
 935
794
 698
Net decrease in cash, cash equivalents and restricted cash(13) (31)
Net increase (decrease) in cash, cash equivalents and restricted cash8
 (13)
Cash, cash equivalents and restricted cash at beginning of period87
 110
112
 87
Cash, cash equivalents and restricted cash at end of period$74
 $79
$120
 $74
Supplemental Disclosures:      
Significant non-cash transactions:      
Accrued capital expenditures$366
 $174
$278
 $366

See Notes to Condensed Consolidated Financial Statements
21



PART I

FINANCIAL STATEMENTS




PROGRESS ENERGY, INC.
Condensed Consolidated Statements of Changes in Equity
(Unaudited)
Three Months Ended June 30, 2018 and 2019
    Accumulated Other Comprehensive Income (Loss)          Accumulated Other Comprehensive (Loss) Income      
      Net Unrealized
   Total Progress
          Net Unrealized
   Total Progress
    
Additional
   Net Losses on
 Gains (losses) on
 Pension and
 Energy, Inc.
    Additional
   Net Losses on
 Gains (Losses) on
 Pension and
 Energy, Inc.
    
Paid-in
 Retained
 Cash Flow
 Available-for-
 OPEB
 Stockholders'
 Noncontrolling
 Total
Paid-in
 Retained
 Cash Flow
 Available-for-
 OPEB
 Stockholders'
 Noncontrolling
 Total
(in millions)Capital
 Earnings
 Hedges
 Sale Securities
 Adjustments
 Equity
 Interests
 Equity
Capital
 Earnings
 Hedges
 Sale Securities
 Adjustments
 Equity
 Interests
 Equity
Balance at December 31, 2016$8,094
 $3,764
 $(23) $1
 $(16) $11,820
 $(13) $11,807
Balance at March 31, 2018$9,142
 $4,591
 $(16) $(1) $(12) $13,704
 $(1) $13,703
Net income
 265
 
 
 
 265
 2
 267
Other comprehensive income (loss)
 
 1
 (1) 2
 2
 
 2
Distributions to noncontrolling interests
 
 
 
 
 
 (1) (1)
Other(a)
1
 (1) 
 1
 
 1
 
 1
Balance at June 30, 2018$9,143
 $4,855
 $(15) $(1) $(10) $13,972
 $
 $13,972
               
Balance at March 31, 2019$9,143
 $5,386
 $(14) $(1) $(8) $14,506
 $2
 $14,508
Net income
 473
 
 
 
 473
 5
 478

 328
 
 
 
 328
 1
 329
Other comprehensive income
 
 6
 2
 2
 10
 
 10

 
 1
 1
 1
 3
 
 3
Other2
 
 
 
 
 2
 
 2

 1
 
 
 (1) 
 (1) (1)
Balance at June 30, 2017$8,096

$4,237

$(17)
$3

$(14) $12,305

$(8)
$12,297
Balance at June 30, 2019$9,143
 $5,715
 $(13) $
 $(8) $14,837
 $2
 $14,839
               
Six Months Ended June 30, 2018 and 2019
    Accumulated Other Comprehensive (Loss) Income      
      Net Unrealized
   Total Progress
    
Additional
   Net Losses on
 Gains (Losses) on
 Pension and
 Energy, Inc.
    
Paid-in
 Retained
 Cash Flow
 Available-for-
 OPEB
 Stockholders'
 Noncontrolling
 Total
               Capital
 Earnings
 Hedges
 Sale Securities
 Adjustments
 Equity
 Interests
 Equity
Balance at December 31, 2017$9,143
 $4,350
 $(18) $5
 $(12) $13,468
 $(3) $13,465
$9,143
 $4,350
 $(18) $5
 $(12) $13,468
 $(3) $13,465
Net income
 500
 
 
 
 500
 4
 504

 500
 
 
 
 500
 4
 504
Other comprehensive income (loss)
 
 3
 (1) 2
 4
 
 4

 
 3
 (1) 2
 4
 
 4
Distributions to noncontrolling interests
 
 
 
 
 
 (1) (1)
 
 
 
 
 
 (1) (1)
Other(a)

 5
 
 (5) 
 
 
 

 5
 
 (5) 
 
 
 
Balance at June 30, 2018$9,143

$4,855

$(15)
$(1)
$(10) $13,972

$

$13,972
$9,143

$4,855

$(15)
$(1)
$(10) $13,972

$

$13,972
               
Balance at December 31, 2018$9,143
 $5,131
 $(12) $(1) $(7) $14,254
 $3
 $14,257
Net income
 577
 
 
 
 577
 
 577
Other comprehensive income
 
 3
 1
 2
 6
 
 6
Other(b)

 7
 (4) 
 (3) 
 (1) (1)
Balance at June 30, 2019$9,143

$5,715

$(13)
$

$(8) $14,837

$2

$14,839
(a)Amounts in Retained Earnings and Accumulated Other Comprehensive Loss(Loss) Income represent a cumulative-effect adjustment due to implementation of a new accounting standard related to Financial Instruments Classification and Measurement. See Note 1 for more information.
(b)Amounts in Retained Earnings and Accumulated Other Comprehensive (Loss) Income primarily represent impacts to accumulated other comprehensive income due to implementation of a new accounting standard related to Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income.

See Notes to Condensed Consolidated Financial Statements
22



PART I
FINANCIAL STATEMENTS




DUKE ENERGY PROGRESS, LLC
Condensed Consolidated Statements of Operations and Comprehensive Income
(Unaudited)
Three Months Ended Six Months EndedThree Months Ended Six Months Ended
June 30, June 30,June 30, June 30,
(in millions)2018
 2017
 2018
 2017
2019
 2018
 2019
 2018
Operating Revenues$1,291
 $1,199
 $2,751
 $2,418
$1,387
 $1,291
 $2,871
 $2,751
Operating Expenses              
Fuel used in electric generation and purchased power408
 375
 917
 739
479
 408
 994
 917
Operation, maintenance and other375
 342
 756
 704
357
 375
 692
 756
Depreciation and amortization235
 173
 470
 354
251
 235
 541
 470
Property and other taxes40
 40
 75
 80
41
 40
 85
 75
Impairment charges1
 
 33
 

 1
 
 33
Total operating expenses1,059
 930
 2,251
 1,877
1,128
 1,059
 2,312
 2,251
Gains on Sales of Other Assets and Other, net1
 1
 2
 3

 1
 
 2
Operating Income233
 270
 502
 544
259
 233
 559
 502
Other Income and Expenses, net19
 26
 37
 57
24
 19
 48
 37
Interest Expense78
 70
 159
 152
81
 78
 158
 159
Income Before Income Taxes174
 226
 380
 449
202
 174
 449
 380
Income Tax Expense35
 72
 64
 148
33
 35
 77
 64
Net Income and Comprehensive Income$139
 $154
 $316
 $301
$169
 $139
 $372
 $316



See Notes to Condensed Consolidated Financial Statements
23



PART I
FINANCIAL STATEMENTS


DUKE ENERGY PROGRESS, LLC
Condensed Consolidated Balance Sheets
(Unaudited)
(in millions)June 30, 2018
 December 31, 2017
June 30, 2019
 December 31, 2018
ASSETS      
Current Assets      
Cash and cash equivalents$18
 $20
$28
 $23
Receivables (net of allowance for doubtful accounts of $2 at 2018 and $1 at 2017)50
 56
Receivables of VIEs (net of allowance for doubtful accounts of $5 at 2018 and 2017)568
 459
Receivables (net of allowance for doubtful accounts of $2 at 2019 and 2018)53
 75
Receivables of VIEs (net of allowance for doubtful accounts of $5 at 2019 and 2018)518
 547
Receivables from affiliated companies1
 3
40
 23
Inventory976
 1,017
980
 954
Regulatory assets532
 352
572
 703
Other33
 97
34
 62
Total current assets2,178
 2,004
2,225
 2,387
Property, Plant and Equipment      
Cost30,535
 29,583
33,288
 31,459
Accumulated depreciation and amortization(11,296) (10,903)(11,728) (11,423)
Generation facilities to be retired, net378
 421
317
 362
Net property, plant and equipment19,617
 19,101
21,877
 20,398
Other Noncurrent Assets      
Regulatory assets3,573
 3,507
4,124
 4,111
Nuclear decommissioning trust funds2,627
 2,588
2,833
 2,503
Operating lease right-of-use assets, net407
 
Other635
 599
586
 612
Total other noncurrent assets6,835
 6,694
7,950
 7,226
Total Assets$28,630
 $27,799
$32,052
 $30,011
LIABILITIES AND EQUITY      
Current Liabilities      
Accounts payable$375
 $402
$315
 $660
Accounts payable to affiliated companies175
 179
182
 278
Notes payable to affiliated companies540
 240
127
 294
Taxes accrued90
 64
106
 53
Interest accrued103
 102
110
 116
Current maturities of long-term debt603
 3
6
 603
Asset retirement obligations381
 295
413
 509
Regulatory liabilities157
 139
167
 178
Other344
 376
395
 408
Total current liabilities2,768
 1,800
1,821
 3,099
Long-Term Debt6,605
 7,204
8,893
 7,451
Long-Term Debt Payable to Affiliated Companies150
 150
150
 150
Other Noncurrent Liabilities      
Deferred income taxes1,957
 1,883
2,181
 2,119
Asset retirement obligations4,454
 4,378
5,203
 4,311
Regulatory liabilities3,998
 3,999
4,150
 3,955
Operating lease liabilities377
 
Accrued pension and other post-retirement benefit costs243
 248
232
 237
Investment tax credits142
 143
141
 142
Other48
 45
91
 106
Total other noncurrent liabilities10,842
 10,696
12,375
 10,870
Commitments and Contingencies
 

 
Equity      
Member's Equity8,265
 7,949
8,813
 8,441
Total Liabilities and Equity$28,630
 $27,799
$32,052
 $30,011

See Notes to Condensed Consolidated Financial Statements
24



PART I
FINANCIAL STATEMENTS


DUKE ENERGY PROGRESS, LLC
Condensed Consolidated Statements of Cash Flows
(Unaudited)
Six Months EndedSix Months Ended
June 30,June 30,
(in millions)2018
 2017
2019
 2018
CASH FLOWS FROM OPERATING ACTIVITIES      
Net income$316
 $301
$372
 $316
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization (including amortization of nuclear fuel)565
 453
634
 565
Equity component of AFUDC(26) (26)(28) (26)
Gains on sales of other assets(2) (4)
 (2)
Impairment charges33
 

 33
Deferred income taxes53
 224
26
 53
Accrued pension and other post-retirement benefit costs7
 (10)1
 7
Contributions to qualified pension plans(25) 

 (25)
Payments for asset retirement obligations(89) (101)(166) (89)
Other rate case adjustments37
 

 37
Provision for rate refunds65
 
10
 65
(Increase) decrease in      
Net realized and unrealized mark-to-market and hedging transactions6
 (3)(5) 6
Receivables(104) 3
58
 (104)
Receivables from affiliated companies2
 
(17) 2
Inventory41
 23
(26) 41
Other current assets(111) (50)115
 (111)
Increase (decrease) in      
Accounts payable(17) (218)(223) (17)
Accounts payable to affiliated companies(4) (58)(96) (4)
Taxes accrued26
 (43)53
 26
Other current liabilities(38) (111)(74) (38)
Other assets10
 (37)
 10
Other liabilities13
 (9)21
 13
Net cash provided by operating activities758
 334
655
 758
CASH FLOWS FROM INVESTING ACTIVITIES      
Capital expenditures(996) (840)(1,115) (996)
Purchases of debt and equity securities(573) (819)(473) (573)
Proceeds from sales and maturities of debt and equity securities556
 805
458
 556
Notes receivable from affiliated companies
 165
Other(45) (22)(20) (45)
Net cash used in investing activities(1,058) (711)(1,150) (1,058)
CASH FLOWS FROM FINANCING ACTIVITIES      
Proceeds from the issuance of long-term debt
 15
1,270
 
Payments for the redemption of long-term debt
 (269)(602) 
Notes payable to affiliated companies300
 633
(167) 300
Other(2) (1)(1) (2)
Net cash provided by financing activities298
 378
500
 298
Net (decrease) increase in cash and cash equivalents(2) 1
Net increase (decrease) in cash and cash equivalents5
 (2)
Cash and cash equivalents at beginning of period20
 11
23
 20
Cash and cash equivalents at end of period$18
 $12
$28
 $18
Supplemental Disclosures:      
Significant non-cash transactions:      
Accrued capital expenditures$172
 $52
$112
 $172

See Notes to Condensed Consolidated Financial Statements
25



PART I
FINANCIAL STATEMENTS


DUKE ENERGY PROGRESS, LLC
Condensed Consolidated Statements of Changes in Equity
(Unaudited)
Three Months Ended
June 30, 2018 and 2019
Member'sMember's
(in millions)EquityEquity
Balance at December 31, 2016$7,358
Balance at March 31, 2018$8,126
Net income301
139
Balance at June 30, 2017$7,659
Balance at June 30, 2018$8,265
  
Balance at March 31, 2019$8,644
Net income169
Balance at June 30, 2019$8,813
 
Six Months Ended
June 30, 2018 and 2019
Member's
(in millions)Equity
Balance at December 31, 2017$7,949
$7,949
Net income316
316
Balance at June 30, 2018$8,265
$8,265
 
Balance at December 31, 2018$8,441
Net income372
Balance at June 30, 2019$8,813



See Notes to Condensed Consolidated Financial Statements
26



PART I
FINANCIAL STATEMENTS




DUKE ENERGY FLORIDA, LLC
Condensed Consolidated Statements of Operations and Comprehensive Income
(Unaudited)
Three Months Ended Six Months EndedThree Months Ended Six Months Ended
June 30, June 30,June 30, June 30,
(in millions)2018
 2017
 2018
 2017
2019
 2018
 2019
 2018
Operating Revenues$1,203
 $1,191
 $2,318
 $2,150
$1,353
 $1,203
 $2,439
 $2,318
Operating Expenses              
Fuel used in electric generation and purchased power486
 455
 953
 817
509
 486
 919
 953
Operation, maintenance and other237
 208
 474
 403
244
 237
 474
 474
Depreciation and amortization144
 137
 294
 269
175
 144
 340
 294
Property and other taxes91
 89
 179
 166
103
 91
 196
 179
Impairment charges
 1
 
 2
Total operating expenses958
 890
 1,900
 1,657
1,031
 958
 1,929
 1,900
Losses on Sales of Other Assets and Other, net(1) 
 (1) 
Operating Income245
 301
 418
 493
321
 245
 509
 418
Other Income and Expenses, net26
 19
 47
 39
12
 26
 25
 47
Interest Expense66
 70
 137
 140
83
 66
 165
 137
Income Before Income Taxes205
 250
 328
 392
250
 205
 369
 328
Income Tax Expense37
 92
 57
 144
49
 37
 72
 57
Net Income$168
 $158
 $271
 $248
$201
 $168
 $297
 $271
Other Comprehensive (Loss) Income, net of tax
 
 

 

Other Comprehensive Income (Loss), net of tax
 
 

 

Unrealized (losses) gains on available-for-sale securities(1) 1
 (1) 2

 (1) 1
 (1)
Comprehensive Income$167
 $159
 $270

$250
$201
 $167
 $298

$270



See Notes to Condensed Consolidated Financial Statements
27



PART I
FINANCIAL STATEMENTS


DUKE ENERGY FLORIDA, LLC
Condensed Consolidated Balance Sheets
(Unaudited)
(in millions)June 30, 2018
 December 31, 2017
June 30, 2019
 December 31, 2018
ASSETS      
Current Assets      
Cash and cash equivalents$14
 $13
$16
 $36
Receivables (net of allowance for doubtful accounts of $3 at 2018 and 2017)78
 65
Receivables of VIEs (net of allowance for doubtful accounts of $2 at 2018 and 2017)400
 321
Receivables (net of allowance for doubtful accounts of $3 at 2019 and 2018)84
 143
Receivables of VIEs (net of allowance for doubtful accounts of $3 at 2019 and 2018)480
 362
Receivables from affiliated companies6
 2
18
 28
Notes receivable from affiliated companies423
 313
Inventory546
 574
499
 504
Regulatory assets (includes $51 at 2018 and 2017 related to VIEs)439
 389
Other (includes $31 at 2018 and $40 at 2017 related to VIEs)183
 86
Regulatory assets (includes $52 at 2019 and 2018 related to VIEs)452
 434
Other (includes $31 at 2019 and $39 at 2018 related to VIEs)46
 46
Total current assets2,089
 1,763
1,595
 1,553
Property, Plant and Equipment      
Cost18,353
 17,730
19,461
 18,792
Accumulated depreciation and amortization(5,079) (4,947)(5,073) (4,968)
Net property, plant and equipment13,274
 12,783
14,388
 13,824
Other Noncurrent Assets      
Regulatory assets (includes $1,071 at 2018 and $1,091 at 2017 related to VIEs)2,163
 2,503
Regulatory assets (includes $1,019 at 2019 and $1,041 at 2018 related to VIEs)2,299
 2,454
Nuclear decommissioning trust funds715
 736
729
 659
Operating lease right-of-use assets, net432
 
Other307
 284
311
 311
Total other noncurrent assets3,185
 3,523
3,771
 3,424
Total Assets$18,548
 $18,069
$19,754
 $18,801
LIABILITIES AND EQUITY      
Current Liabilities      
Accounts payable$440
 $602
$403
 $511
Accounts payable to affiliated companies63
 74
62
 91
Notes payable to affiliated companies477
 108
Taxes accrued115
 34
148
 74
Interest accrued53
 56
70
 75
Current maturities of long-term debt (includes $53 at 2018 and 2017 related to VIEs)269
 768
Current maturities of long-term debt (includes $54 at 2019 and $53 at 2018 related to VIEs)671
 270
Asset retirement obligations5
 
3
 5
Regulatory liabilities76
 74
83
 102
Other357
 334
461
 406
Total current liabilities1,378
 1,942
2,378
 1,642
Long-Term Debt (includes $1,361 at 2018 and $1,389 at 2017 related to VIEs)7,183
 6,327
Long-Term Debt (includes $1,332 at 2019 and $1,336 at 2018 related to VIEs)6,542
 7,051
Other Noncurrent Liabilities      
Deferred income taxes2,007
 1,761
2,105
 1,986
Asset retirement obligations597
 742
574
 586
Regulatory liabilities1,194
 1,307
1,040
 1,094
Operating lease liabilities370
 
Accrued pension and other post-retirement benefit costs243
 264
248
 254
Other58
 108
104
 93
Total other noncurrent liabilities4,099
 4,182
4,441
 4,013
Commitments and Contingencies
 

 
Equity      
Member's equity5,890
 5,614
6,394
 6,097
Accumulated other comprehensive (loss) income(2) 4
Accumulated other comprehensive loss(1) (2)
Total equity5,888
 5,618
6,393
 6,095
Total Liabilities and Equity$18,548
 $18,069
$19,754
 $18,801

See Notes to Condensed Consolidated Financial Statements
28



PART I
FINANCIAL STATEMENTS


DUKE ENERGY FLORIDA, LLC
Condensed Consolidated Statements of Cash Flows
(Unaudited)
Six Months EndedSix Months Ended
June 30,June 30,
(in millions)2018
 2017
2019
 2018
CASH FLOWS FROM OPERATING ACTIVITIES      
Net income$271
 $248
$297
 $271
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation, amortization and accretion374
 274
423
 374
Equity component of AFUDC(26) (22)(2) (26)
Impairment charges
 2
Losses on sales of other assets1
 
Deferred income taxes206
 186
82
 206
Accrued pension and other post-retirement benefit costs3
 2
5
 3
Contributions to qualified pension plans(20) 

 (20)
Payments for asset retirement obligations(19) (27)(17) (19)
(Increase) decrease in      
Net realized and unrealized mark-to-market and hedging transactions6
 2
2
 6
Receivables(92) (65)(101) (92)
Receivables from affiliated companies(4) 
10
 (4)
Inventory28
 72
1
 28
Other current assets(114) (67)8
 (114)
Increase (decrease) in      
Accounts payable34
 7
27
 34
Accounts payable to affiliated companies(11) (83)(29) (11)
Taxes accrued81
 78
74
 81
Other current liabilities(21) (57)(80) (21)
Other assets(196) (32)(81) (196)
Other liabilities(10) (5)(9) (10)
Net cash provided by operating activities490
 513
611
 490
CASH FLOWS FROM INVESTING ACTIVITIES      
Capital expenditures(731) (893)(873) (731)
Purchases of debt and equity securities(239) (289)(621) (239)
Proceeds from sales and maturities of debt and equity securities264
 318
631
 264
Notes receivable from affiliated companies(110) (230)
 (110)
Other(35) 
(37) (35)
Net cash used in investing activities(851) (1,094)(900) (851)
CASH FLOWS FROM FINANCING ACTIVITIES      
Proceeds from the issuance of long-term debt989
 908
25
 989
Payments for the redemption of long-term debt(635) (57)(136) (635)
Notes payable to affiliated companies
 (297)369
 
Other(1) (1)3
 (1)
Net cash provided by financing activities353
 553
261
 353
Net decrease in cash, cash equivalents and restricted cash(8) (28)(28) (8)
Cash, cash equivalents and restricted cash at beginning of period53
 69
75
 53
Cash, cash equivalents and restricted cash at end of period$45
 $41
$47
 $45
Supplemental Disclosures:      
Significant non-cash transactions:      
Accrued capital expenditures$194
 $122
$166
 $194

See Notes to Condensed Consolidated Financial Statements
29



PART I
FINANCIAL STATEMENTS


DUKE ENERGY FLORIDA, LLC
Condensed Consolidated Statements of Changes in Equity
(Unaudited)
Three Months Ended June 30, 2018 and 2019
  Accumulated    Accumulated  
  Other    Other  
  Comprehensive    Comprehensive  
  Income (Loss)    Income (Loss)  
  Net Unrealized
    Net Unrealized
  
  Gains (Losses) on
    Gains (Losses) on
  
Member's
 Available-for-Sale
 Total
Member's
 Available-for-Sale
 Total
(in millions)Equity
 Securities
 Equity
Equity
 Securities
 Equity
Balance at December 31, 2016$4,899
 $1
 $4,900
Balance at March 31, 2018$5,723
 $(2) $5,721
Net income248
 
 248
168
 
 168
Other comprehensive income
 2
 2
Other2
 
 2
Balance at June 30, 2017$5,149
 $3
 $5,152
Other comprehensive loss
 (1) (1)
Other(a)
(1) 1
 
Balance at June 30, 2018$5,890
 $(2) $5,888
          
Balance at March 31, 2019$6,193
 $(1) $6,192
Net income201
 
 201
Balance at June 30, 2019$6,394
 $(1) $6,393
     
Six Months Ended June 30, 2018 and 2019
  Accumulated  
  Other  
  Comprehensive  
  Income (Loss)  
  Net Unrealized
  
  Gains (Losses) on
  
Member's
 Available-for-Sale
 Total
(in millions)Equity
 Securities
 Equity
Balance at December 31, 2017$5,614
 $4
 $5,618
$5,614
 $4
 $5,618
Net income271
 
 271
271
 
 271
Other comprehensive loss
 (1) (1)
 (1) (1)
Other(a)
5
 (5) 
5
 (5) 
Balance at June 30, 2018$5,890
 $(2) $5,888
$5,890
 $(2) $5,888
     
Balance at December 31, 2018$6,097
 $(2) $6,095
Net income297
 
 297
Other comprehensive income
 1
 1
Balance at June 30, 2019$6,394
 $(1) $6,393


(a)Amounts in Member's Equity and Accumulated Other Comprehensive Income (Loss) represent a cumulative-effect adjustment due to implementation of a new accounting standard related to Financial Instruments Classification and Measurement. See Note 1 for more information.

See Notes to Condensed Consolidated Financial Statements
30



PART I
FINANCIAL STATEMENTS




DUKE ENERGY OHIO, INC.
Condensed Consolidated Statements of Operations and Comprehensive Income
(Unaudited)
Three Months Ended Six Months EndedThree Months Ended Six Months Ended
June 30, June 30,June 30, June 30,
(in millions)2018
 2017
 2018

2017
2019
 2018
 2019

2018
Operating Revenues              
Regulated electric$346
 $328
 $682
 $665
$336
 $346
 $691
 $682
Regulated natural gas103
 100
 277
 270
97
 103
 273
 277
Nonregulated electric and other10
 9
 24
 20

 10
 
 24
Total operating revenues459
 437
 983
 955
433
 459
 964
 983
Operating Expenses              
Fuel used in electric generation and purchased power – regulated93
 86
 185
 183
86
 93
 179
 185
Fuel used in electric generation and purchased power – nonregulated14
 14
 29
 29

 14
 
 29
Cost of natural gas15
 10
 69
 64
10
 15
 64
 69
Operation, maintenance and other130
 132
 261
 263
123
 130
 255
 261
Depreciation and amortization62
 63
 132
 130
66
 62
 130
 132
Property and other taxes68
 67
 145
 139
74
 68
 158
 145
Impairment charges
 1
 
 1
Total operating expenses382
 373
 821
 809
359
 382
 786
 821
Loss on Sales of Other Assets and Other, net
 
 (106) 
Losses on Sales of Other Assets and Other, net
 
 
 (106)
Operating Income77
 64
 56
 146
74
 77
 178
 56
Other Income and Expenses, net8
 5
 14
 10
6
 8
 15
 14
Interest Expense23
 23
 45
 45
24
 23
 54
 45
Income Before Income Taxes62
 46
 25
 111
56
 62
 139
 25
Income Tax Expense16
 16
 4
 39
9
 16
 23
 4
Net Income and Comprehensive Income$46
 $30
 $21
 $72
$47
 $46
 $116
 $21



See Notes to Condensed Consolidated Financial Statements
31



PART I
FINANCIAL STATEMENTS


DUKE ENERGY OHIO, INC.
Condensed Consolidated Balance Sheets
(Unaudited)
(in millions)June 30, 2018
 December 31, 2017
June 30, 2019
 December 31, 2018
ASSETS      
Current Assets      
Cash and cash equivalents$7
 $12
$8
 $21
Receivables (net of allowance for doubtful accounts of $3 at 2018 and 2017)87
 68
Receivables (net of allowance for doubtful accounts of $3 at 2019 and $2 at 2018)80
 102
Receivables from affiliated companies71
 133
50
 114
Notes receivable from affiliated companies
 14
Inventory124
 133
124
 126
Regulatory assets46
 49
47
 33
Other30
 39
32
 24
Total current assets365
 448
341
 420
Property, Plant and Equipment      
Cost9,024
 8,732
9,776
 9,360
Accumulated depreciation and amortization(2,696) (2,691)(2,761) (2,717)
Net property, plant and equipment6,328
 6,041
7,015
 6,643
Other Noncurrent Assets      
Goodwill920
 920
920
 920
Regulatory assets425
 445
545
 531
Operating lease right-of-use assets, net22
 
Other63
 21
46
 41
Total other noncurrent assets1,408
 1,386
1,533
 1,492
Total Assets$8,101
 $7,875
$8,889
 $8,555
LIABILITIES AND EQUITY      
Current Liabilities      
Accounts payable$267
 $313
$257
 $316
Accounts payable to affiliated companies47
 62
78
 78
Notes payable to affiliated companies219
 29
203
 274
Taxes accrued127
 190
135
 202
Interest accrued21
 21
31
 22
Current maturities of long-term debt452
 3
100
 551
Asset retirement obligations5
 3
6
 6
Regulatory liabilities51
 36
67
 57
Other71
 71
76
 74
Total current liabilities1,260
 728
953
 1,580
Long-Term Debt1,589
 2,039
2,384
 1,589
Long-Term Debt Payable to Affiliated Companies25
 25
25
 25
Other Noncurrent Liabilities      
Deferred income taxes778
 781
872
 817
Asset retirement obligations84
 81
83
 87
Regulatory liabilities896
 891
802
 840
Operating lease liabilities21
 
Accrued pension and other post-retirement benefit costs83
 59
94
 79
Other96
 108
94
 93
Total other noncurrent liabilities1,937
 1,920
1,966
 1,916
Commitments and Contingencies      
Equity      
Common stock, $8.50 par value, 120 million shares authorized; 90 million shares outstanding at 2018 and 2017762
 762
Common stock, $8.50 par value, 120 million shares authorized; 90 million shares outstanding at 2019 and 2018762
 762
Additional paid-in capital2,776
 2,670
2,776
 2,776
Accumulated deficit(248) (269)
Retained Earnings (Accumulated deficit)23
 (93)
Total equity3,290
 3,163
3,561
 3,445
Total Liabilities and Equity$8,101
 $7,875
$8,889
 $8,555

See Notes to Condensed Consolidated Financial Statements
32



PART I
FINANCIAL STATEMENTS


DUKE ENERGY OHIO, INC.
Condensed Consolidated Statements of Cash Flows
(Unaudited)
Six Months EndedSix Months Ended
June 30,June 30,
(in millions)2018
 2017
2019
 2018
CASH FLOWS FROM OPERATING ACTIVITIES      
Net income$21
 $72
$116
 $21
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization134
 132
132
 134
Equity component of AFUDC(8) (5)(7) (8)
Losses on sales of other assets106
 

 106
Impairment charges
 1
Deferred income taxes(2) 64
45
 (2)
Accrued pension and other post-retirement benefit costs2
 2

 2
Payments for asset retirement obligations(2) (3)(5) (2)
Provision for rate refunds19
 
3
 19
(Increase) decrease in      
Receivables(7) 11
24
 (7)
Receivables from affiliated companies62
 55
64
 62
Inventory9
 6
2
 9
Other current assets24
 (11)(13) 24
Increase (decrease) in      
Accounts payable(34) (4)(44) (34)
Accounts payable to affiliated companies(15) (16)
 (15)
Taxes accrued(63) (79)(67) (63)
Other current liabilities8
 (15)2
 8
Other assets(7) (12)(18) (7)
Other liabilities(18) (8)(15) (18)
Net cash provided by operating activities229
 190
219
 229
CASH FLOWS FROM INVESTING ACTIVITIES      
Capital expenditures(392) (286)(473) (392)
Cost of removal, net of salvage(43) (13)
Notes receivable from affiliated companies14
 31

 14
Other(31) (43)
Net cash used in investing activities(421) (268)(504) (421)
CASH FLOWS FROM FINANCING ACTIVITIES      
Proceeds from the issuance of long-term debt
 93
794
 
Payments for the redemption of long-term debt(3) (1)(451) (3)
Notes payable to affiliated companies190
 8
(71) 190
Dividends to parent
 (25)
Other
 (1)
Net cash provided by financing activities187
 74
272
 187
Net decrease in cash and cash equivalents(5) (4)(13) (5)
Cash and cash equivalents at beginning of period12
 13
21
 12
Cash and cash equivalents at end of period$7
 $9
$8
 $7
Supplemental Disclosures:      
Significant non-cash transactions:      
Accrued capital expenditures$70
 $59
$93
 $70
Non-cash equity contribution from parent106
 

 106

See Notes to Condensed Consolidated Financial Statements
33



PART I
FINANCIAL STATEMENTS


DUKE ENERGY OHIO, INC.
Condensed Consolidated Statements of Changes in Equity
(Unaudited)
 Three Months Ended June 30, 2018 and 2019
   Additional
 Retained
  
 Common
 Paid-in
 Earnings
 Total
(in millions)Stock
 Capital
 (Deficit)
 Equity
Balance at March 31, 2018$762
 $2,670
 $(294) $3,138
Net income
 
 46
 46
Contribution from parent(a)

 106
 
 106
Balance at June 30, 2018$762
 $2,776
 $(248) $3,290
        
Balance at March 31, 2019$762
 $2,776
 $(24) $3,514
Net income
 
 47
 47
Balance at June 30, 2019$762
 $2,776
 $23
 $3,561
        
 Six Months Ended June 30, 2018 and 2019
   Additional
 Retained
  
 Common
 Paid-in
 Earnings
 Total
(in millions)Stock
 Capital
 (Deficit)
 Equity
Balance at December 31, 2017$762
 $2,670
 $(269) $3,163
Net income
 
 21
 21
Contribution from parent(a)

 106
 
 106
Balance at June 30, 2018$762
 $2,776
 $(248) $3,290
        
Balance at December 31, 2018$762
 $2,776
 $(93) $3,445
Net income
 
 116
 116
Balance at June 30, 2019$762

$2,776

$23

$3,561
   Additional
    
 Common
 Paid-in
 Accumulated
 Total
(in millions)Stock
 Capital
 Deficit
 Equity
Balance at December 31, 2016$762
 $2,695
 $(461) $2,996
Net income
 
 72
 72
Dividends to parent
 (25) 
 (25)
Balance at June 30, 2017$762
 $2,670
 $(389) $3,043
        
Balance at December 31, 2017$762
 $2,670
 $(269) $3,163
Net income
 
 21
 21
Contribution from parent(a)

 106
 
 106
Balance at June 30, 2018$762

$2,776

$(248)
$3,290

(a)Represents a non-cash settlement through equity of an intercompany payable from Duke Energy Ohio to its parent.

See Notes to Condensed Consolidated Financial Statements
34



PART I
FINANCIAL STATEMENTS




DUKE ENERGY INDIANA, LLC
Condensed Consolidated Statements of Operations and Comprehensive Income
(Unaudited)
Three Months Ended Six Months EndedThree Months Ended Six Months Ended
June 30, June 30,June 30, June 30,
(in millions)2018
 2017
 2018
 2017
2019
 2018
 2019
 2018
Operating Revenues$738
 $742
 $1,469
 $1,500
$714
 $738
 $1,482
 $1,469
Operating Expenses              
Fuel used in electric generation and purchased power226
 234
 458
 485
229
 226
 486
 458
Operation, maintenance and other197
 194
 378
 369
188
 197
 377
 378
Depreciation and amortization126
 91
 256
 216
132
 126
 263
 256
Property and other taxes20
 15
 40
 37
20
 20
 39
 40
Total operating expenses569
 534
 1,132
 1,107
569
 569
 1,165
 1,132
Gains on Sales of Other Assets and Other, net3


 
 
Operating Income169
 208

337

393
148
 169

317

337
Other Income and Expenses, net6
 11
 13
 20
8
 6
 27
 13
Interest Expense43
 44
 83
 88
28
 43
 71
 83
Income Before Income Taxes132
 175

267

325
128
 132

273

267
Income Tax Expense34
 69
 69
 128
31
 34
 66
 69
Net Income and Comprehensive Income$98
 $106

$198

$197
$97
 $98

$207

$198



See Notes to Condensed Consolidated Financial Statements
35



PART I
FINANCIAL STATEMENTS


DUKE ENERGY INDIANA, LLC
Condensed Consolidated Balance Sheets
(Unaudited)
(in millions)June 30, 2018
 December 31, 2017
June 30, 2019
 December 31, 2018
ASSETS      
Current Assets      
Cash and cash equivalents$24
 $9
$12
 $24
Receivables (net of allowance for doubtful accounts of $2 at 2018 and 2017)54
 57
Receivables (net of allowance for doubtful accounts of $3 at 2019 and $2 at 2018)49
 52
Receivables from affiliated companies89
 125
83
 122
Inventory470
 450
463
 422
Regulatory assets191
 165
130
 175
Other52
 30
42
 35
Total current assets880
 836
779
 830
Property, Plant and Equipment      
Cost15,213
 14,948
15,831
 15,443
Accumulated depreciation and amortization(4,767) (4,662)(5,104) (4,914)
Net property, plant and equipment10,446
 10,286
10,727
 10,529
Other Noncurrent Assets      
Regulatory assets1,021
 978
1,038
 982
Operating lease right-of-use assets, net60
 
Other224
 189
203
 194
Total other noncurrent assets1,245
 1,167
1,301
 1,176
Total Assets$12,571
 $12,289
$12,807
 $12,535
LIABILITIES AND EQUITY      
Current Liabilities      
Accounts payable$171
 $196
$224
 $200
Accounts payable to affiliated companies58
 78
66
 83
Notes payable to affiliated companies221
 161
165
 167
Taxes accrued54
 95
25
 43
Interest accrued59
 57
59
 58
Current maturities of long-term debt62
 3
3
 63
Asset retirement obligations98
 54
115
 109
Regulatory liabilities19
 24
24
 25
Other123
 104
120
 107
Total current liabilities865
 772
801
 855
Long-Term Debt3,570
 3,630
3,570
 3,569
Long-Term Debt Payable to Affiliated Companies150
 150
150
 150
Other Noncurrent Liabilities      
Deferred income taxes957
 925
1,084
 1,009
Asset retirement obligations758
 727
604
 613
Regulatory liabilities1,755
 1,723
1,693
 1,722
Operating lease liabilities56
 
Accrued pension and other post-retirement benefit costs111
 76
142
 115
Investment tax credits147
 147
147
 147
Other14
 18
14
 16
Total other noncurrent liabilities3,742
 3,616
3,740
 3,622
Commitments and Contingencies      
Equity      
Member's Equity4,244
 4,121
4,546
 4,339
Total Liabilities and Equity$12,571
 $12,289
$12,807
 $12,535

See Notes to Condensed Consolidated Financial Statements
36



PART I
FINANCIAL STATEMENTS


DUKE ENERGY INDIANA, LLC
Condensed Consolidated Statements of Cash Flows
(Unaudited)
Six Months EndedSix Months Ended
June 30,June 30,
(in millions)2018
 2017
2019
 2018
CASH FLOWS FROM OPERATING ACTIVITIES      
Net income$198
 $197
$207
 $198
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation, amortization and accretion258
 218
265
 258
Equity component of AFUDC(7) (12)(9) (7)
Deferred income taxes36
 131
60
 36
Accrued pension and other post-retirement benefit costs3
 3
2
 3
Contributions to qualified pension plans(8) 

 (8)
Payments for asset retirement obligations(21) (17)(17) (21)
Provision for rate refunds49
 

 49
(Increase) decrease in      
Net realized and unrealized mark-to-market and hedging transactions
 1
Receivables2
 73
5
 2
Receivables from affiliated companies36
 27
39
 36
Inventory(20) 34
(41) (20)
Other current assets(35) (15)48
 (35)
Increase (decrease) in      
Accounts payable33
 (68)26
 33
Accounts payable to affiliated companies(19) (24)(17) (19)
Taxes accrued(41) (3)(18) (41)
Other current liabilities3
 (11)(13) 3
Other assets20
 (13)(34) 20
Other liabilities(21) (9)14
 (21)
Net cash provided by operating activities466
 512
517
 466
CASH FLOWS FROM INVESTING ACTIVITIES      
Capital expenditures(416) (397)(443) (416)
Purchases of debt and equity securities(34) (10)(14) (34)
Proceeds from sales and maturities of debt and equity securities13
 4
11
 13
Notes receivable from affiliated companies
 67
Other2
 (23)(21) 2
Net cash used in investing activities(435) (359)(467) (435)
CASH FLOWS FROM FINANCING ACTIVITIES      
Payments for the redemption of long-term debt
 (2)(60) 
Notes payable to affiliated companies60
 
(2) 60
Distributions to parent(75) (150)
 (75)
Other(1) (1)
 (1)
Net cash used in financing activities(16) (153)(62) (16)
Net increase in cash and cash equivalents15


Net (decrease) increase in cash and cash equivalents(12)
15
Cash and cash equivalents at beginning of period9
 17
24
 9
Cash and cash equivalents at end of period$24
 $17
$12
 $24
Supplemental Disclosures:      
Significant non-cash transactions:      
Accrued capital expenditures$62
 $81
$84
 $62

See Notes to Condensed Consolidated Financial Statements
37



PART I
FINANCIAL STATEMENTS


DUKE ENERGY INDIANA, LLC
Condensed Consolidated Statements of Changes in Equity
(Unaudited)
 Three Months Ended
 June 30, 2018 and 2019
 Member's
 Member's
(in millions) Equity
 Equity
Balance at December 31, 2016 $4,067
Balance at March 31, 2018 $4,221
Net income 197
 98
Distributions to parent (150) (75)
Balance at June 30, 2017
$4,114
Balance at June 30, 2018 $4,244
    
Balance at March 31, 2019 $4,449
Net income 97
Balance at June 30, 2019 $4,546
  
 Six Months Ended
 June 30, 2018 and 2019
 Member's
(in millions) Equity
Balance at December 31, 2017 $4,121
 $4,121
Net income 198
 198
Distributions to parent (75) (75)
Balance at June 30, 2018
$4,244

$4,244
  
Balance at December 31, 2018 $4,339
Net income 207
Balance at June 30, 2019
$4,546



See Notes to Condensed Consolidated Financial Statements
38



PART I
FINANCIAL STATEMENTS




PIEDMONT NATURAL GAS COMPANY, INC.
Condensed Consolidated Statements of Operations and Comprehensive Income
(Unaudited)
Three Months Ended Six Months EndedThree Months Ended Six Months Ended
June 30, June 30,June 30, June 30,
2018
 2017
 2018
 2017
(in millions)2019
 2018
 2019
 2018
Operating Revenues$215
 $201
 $768
 $701
$209
 $215
 $788
 $768
Operating Expenses              
Cost of natural gas74
 65
 333
 270
65
 74
 338
 333
Operation, maintenance and other85
 76
 167
 153
83
 85
 163
 167
Depreciation and amortization39
 36
 78
 71
42
 39
 84
 78
Property and other taxes12
 12
 24
 25
13
 12
 25
 24
Impairment charges
 7
 
 7
Total operating expenses210
 196
 602
 526
203
 210
 610
 602
Operating Income5
 5
 166
 175
6
 5
 178
 166
Other Income and Expenses       
Equity in earnings of unconsolidated affiliates1
 2
 3
 5
Other income and expenses, net3
 (1) 6
 (1)
Total other income and expenses4
 1
 9
 4
Other Income and Expenses, net6
 4
 12
 9
Interest Expense20
 19
 41
 39
21
 20
 43
 41
(Loss) Income Before Income Taxes(11) (13) 134
 140
(9) (11) 147
 134
Income Tax (Benefit) Expense(3) (5) 32
 53
(2) (3) 32
 32
Net (Loss) Income and Comprehensive (Loss) Income$(8) $(8) $102
 $87
$(7) $(8) $115
 $102

See Notes to Condensed Consolidated Financial Statements
39



PART I
FINANCIAL STATEMENTS


PIEDMONT NATURAL GAS COMPANY, INC.
Condensed Consolidated Balance Sheets
(Unaudited)
(in millions)June 30, 2018
 December 31, 2017
June 30, 2019
 December 31, 2018
ASSETS      
Current Assets      
Cash and cash equivalents$8
 $19
Receivables (net of allowance for doubtful accounts of $3 at 2018 and $2 at 2017)109
 275
Receivables (net of allowance for doubtful accounts of $2 at 2019 and 2018)$100
 $266
Receivables from affiliated companies11
 7
17
 22
Notes receivable from affiliated companies77
 
16
 
Inventory38
 66
33
 70
Regulatory assets35
 95
30
 54
Other36
 52
57
 19
Total current assets314
 514
253
 431
Property, Plant and Equipment      
Cost7,089
 6,725
7,966
 7,486
Accumulated depreciation and amortization(1,533) (1,479)(1,620) (1,575)
Net property, plant and equipment5,556
 5,246
6,346
 5,911
Other Noncurrent Assets      
Goodwill49
 49
49
 49
Regulatory assets297
 283
280
 303
Operating lease right-of-use assets, net26
 
Investments in equity method unconsolidated affiliates62
 61
81
 64
Other65
 65
60
 52
Total other noncurrent assets473
 458
496
 468
Total Assets$6,343
 $6,218
$7,095
 $6,810
LIABILITIES AND EQUITY      
Current Liabilities      
Accounts payable$133
 $125
$156
 $203
Accounts payable to affiliated companies1
 13
52
 38
Notes payable to affiliated companies
 364

 198
Taxes accrued23
 19
23
 84
Interest accrued31
 31
33
 31
Current maturities of long-term debt250
 250

 350
Regulatory liabilities51
 3
67
 37
Other53
 69
62
 58
Total current liabilities542
 874
393
 999
Long-Term Debt1,787
 1,787
2,384
 1,788
Other Noncurrent Liabilities      
Deferred income taxes569
 564
593
 551
Asset retirement obligations15
 15
19
 19
Regulatory liabilities1,183
 1,141
1,174
 1,181
Operating lease liabilities25
 
Accrued pension and other post-retirement benefit costs3
 5
6
 4
Other180
 170
145
 177
Total other noncurrent liabilities1,950
 1,895
1,962
 1,932
Commitments and Contingencies
 

 
Equity      
Common stock, no par value: 100 shares authorized and outstanding at 2018 and 20171,160
 860
Common stock, no par value: 100 shares authorized and outstanding at 2019 and 20181,310
 1,160
Retained earnings904
 802
1,046
 931
Total equity2,064
 1,662
2,356
 2,091
Total Liabilities and Equity$6,343
 $6,218
$7,095
 $6,810

See Notes to Condensed Consolidated Financial Statements
40



PART I
FINANCIAL STATEMENTS


PIEDMONT NATURAL GAS COMPANY, INC.
Condensed Consolidated Statements of Cash Flows
(Unaudited)
Six Months EndedSix Months Ended
June 30,June 30,
(in millions)2018
 2017
2019
 2018
CASH FLOWS FROM OPERATING ACTIVITIES      
Net income$102
 $87
$115
 $102
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization79
 74
85
 79
Impairment charges
 7
Deferred income taxes4
 100
40
 4
Equity in earnings from unconsolidated affiliates(3) (5)(4) (3)
Accrued pension and other post-retirement benefit costs(2) 6
(5) (2)
Provision for rate refunds27
 
9
 27
(Increase) decrease in      
Net realized and unrealized mark-to-market and hedging transactions
 (39)
Receivables166
 155
168
 166
Receivables from affiliated companies(4) (1)5
 (4)
Inventory28
 28
37
 28
Other current assets74
 (64)(17) 74
Increase (decrease) in      
Accounts payable(32) (44)(70) (32)
Accounts payable to affiliated companies(12) 42
14
 (12)
Taxes accrued4
 (46)(61) 4
Other current liabilities28
 (23)10
 28
Other assets2
 28
(5) 2
Other liabilities(2) (6)(1) (2)
Net cash provided by operating activities459
 299
320
 459
CASH FLOWS FROM INVESTING ACTIVITIES      
Capital expenditures(327) (260)(480) (327)
Contributions to equity method investments
 (12)(16) 
Notes receivable from affiliated companies(77) 
(16) (77)
Other(2) 1
(6) (2)
Net cash used in investing activities(406) (271)(518) (406)
CASH FLOWS FROM FINANCING ACTIVITIES      
Proceeds from the issuance of long-term debt
 125
596
 
Notes payable and commercial paper
 (330)
Payments for the redemption of long-term debt(350) 
Notes payable to affiliated companies(364) 167
(198) (364)
Capital contributions from parent300
 
150
 300
Other
 (1)
Net cash used in financing activities(64) (39)
Net cash provided by (used in) financing activities198
 (64)
Net decrease in cash and cash equivalents(11) (11)
 (11)
Cash and cash equivalents at beginning of period19
 25

 19
Cash and cash equivalents at end of period$8
 $14
$
 $8
Supplemental Disclosures:      
Significant non-cash transactions:      
Accrued capital expenditures$73
 $45
$115
 $73
Transfer of ownership interest of certain equity method investees to parent
 149

See Notes to Condensed Consolidated Financial Statements
41



PART I
FINANCIAL STATEMENTS


PIEDMONT NATURAL GAS COMPANY, INC.
Condensed Consolidated Statements of Changes in Equity
(Unaudited)
Three Months Ended June 30, 2018 and 2019
Common
 Retained
 Total
Common
 Retained
 Total
(in millions)Stock
 Earnings
 Equity
Stock
 Earnings
 Equity
Balance at December 31, 2016$860
 $812
 $1,672
Net income
 87
 87
Transfer of ownership interest of certain equity method investees to parent
 (149) (149)
Balance at June 30, 2017$860
 $750
 $1,610
Balance at March 31, 2018$860
 $912
 $1,772
Net loss
 (8) (8)
Contribution from parent300
 
 300
Balance at June 30, 2018$1,160
 $904
 $2,064
          
Balance at March 31, 2019$1,160
 $1,053
 $2,213
Net loss
 (7) (7)
Contribution from parent150
 
 150
Balance at June 30, 2019$1,310
 $1,046
 $2,356
     
Six Months Ended June 30, 2018 and 2019
Common
 Retained
 Total
(in millions)Stock
 Earnings
 Equity
Balance at December 31, 2017$860
 $802
 $1,662
$860
 $802
 $1,662
Net income
 102
 102

 102
 102
Contribution from parent300
 
 300
300
 
 300
Balance at June 30, 2018$1,160
 $904
 $2,064
$1,160
 $904
 $2,064
     
Balance at December 31, 2018$1,160
 $931
 $2,091
Net income
 115
 115
Contribution from parent150
 
 150
Balance at June 30, 2019$1,310
 $1,046
 $2,356




PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
CombinedSee Notes to Condensed Consolidated Financial Statements(Unaudited)

42





FINANCIAL STATEMENTSORGANIZATION AND BASIS OF PRESENTATION


Index to Combined Notes to Condensed Consolidated Financial Statements
The unaudited notes to the condensed consolidated financial statementsCondensed Consolidated Financial Statements that follow are a combined presentation. The following list indicates the registrants to which the footnotes apply.
 Applicable Notes
Registrant1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Duke Energy Corporation                  
Duke Energy Carolinas, LLC                    
Progress Energy, Inc.                   
Duke Energy Progress, LLC                    
Duke Energy Florida, LLC                    
Duke Energy Ohio, Inc.                    
Duke Energy Indiana, LLC                    
Piedmont Natural Gas Company, Inc.                     
 Applicable Notes
Registrant1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Duke Energy                  
Duke Energy Carolinas                   
Progress Energy                  
Duke Energy Progress                   
Duke Energy Florida                   
Duke Energy Ohio                   
Duke Energy Indiana                   
Piedmont                    
Tables within the notes may not sum across due to (i) Progress Energy's consolidation of Duke Energy Progress, Duke Energy Florida and other subsidiaries that are not registrants and (ii) subsidiaries that are not registrants but included in the consolidated Duke Energy balances.
1. ORGANIZATION AND BASIS OF PRESENTATION
NATURE OF OPERATIONS AND BASIS OF CONSOLIDATION
Duke Energy Corporation (collectively with its subsidiaries, Duke Energy) is an energy company headquartered in Charlotte, North Carolina, subject to regulation by the Federal Energy Regulatory Commission (FERC). Duke Energy operates in the United States (U.S.) primarily through its direct and indirect subsidiaries. Certain Duke Energy subsidiaries are also subsidiary registrants, including Duke Energy Carolinas, LLC (Duke Energy Carolinas); Progress Energy, Inc. (Progress Energy); Duke Energy Progress, LLC (Duke Energy Progress); Duke Energy Florida, LLC (Duke Energy Florida); Duke Energy Ohio, Inc. (Duke Energy Ohio), Duke Energy Indiana, LLC (Duke Energy Indiana) and Piedmont Natural Gas Company, Inc. (Piedmont). When discussing Duke Energy’s consolidated financial information, it necessarily includes the results of its separate subsidiary registrants (collectively referred to as the Subsidiary Registrants), which, along with Duke Energy, are collectively referred to as the Duke Energy Registrants.
These Condensed Consolidated Financial Statements include, after eliminating intercompany transactions and balances, the accounts of the Duke Energy Registrants and subsidiaries where the respective Duke Energy Registrants have control. These Condensed Consolidated Financial Statements also reflect the Duke Energy Registrants’ proportionate share of certain jointly owned generation and transmission facilities. Substantially all of the Subsidiary Registrants' operations qualify for regulatory accounting.
Duke Energy Carolinas is a regulated public utility primarily engaged in the generation, transmission, distribution and sale of electricity in portions of North Carolina and South Carolina. Duke Energy Carolinas is subject to the regulatory provisions of the North Carolina Utilities Commission (NCUC), Public Service Commission of South Carolina (PSCSC), U.S. Nuclear Regulatory Commission (NRC) and FERC.
Progress Energy is a public utility holding company headquartered in Raleigh, North Carolina, subject to regulation by FERC. Progress Energy conducts operations through its wholly owned subsidiaries, Duke Energy Progress and Duke Energy Florida.
Duke Energy Progress is a regulated public utility primarily engaged in the generation, transmission, distribution and sale of electricity in portions of North Carolina and South Carolina. Duke Energy Progress is subject to the regulatory provisions of the NCUC, PSCSC, NRC and FERC.
Duke Energy Florida is a regulated public utility primarily engaged in the generation, transmission, distribution and sale of electricity in portions of Florida. Duke Energy Florida is subject to the regulatory provisions of the Florida Public Service Commission (FPSC), NRC and FERC.
Duke Energy Ohio is a regulated public utility primarily engaged in the transmission and distribution of electricity in portions of Ohio and Kentucky, the generation and sale of electricity in portions of Kentucky and the transportation and sale of natural gas in portions of Ohio and Kentucky. Duke Energy Ohio conducts competitive auctions for retail electricity supply in Ohio whereby the energy price is recovered from retail customers and recorded in Operating Revenues on the Condensed Consolidated Statements of Operations and Comprehensive Income. Operations in Kentucky are conducted through its wholly owned subsidiary, Duke Energy Kentucky, Inc. (Duke Energy Kentucky). References herein to Duke Energy Ohio collectively include Duke Energy Ohio and its subsidiaries, unless otherwise noted. Duke Energy Ohio is subject to the regulatory provisions of the Public Utilities Commission of Ohio (PUCO), Kentucky Public Service Commission (KPSC) and FERC.
Duke Energy Indiana is a regulated public utility primarily engaged in the generation, transmission, distribution and sale of electricity in portions of Indiana. Duke Energy Indiana is subject to the regulatory provisions of the Indiana Utility Regulatory Commission (IURC) and FERC.
Piedmont is a regulated public utility primarily engaged in the distribution of natural gas in portions of North Carolina, South Carolina and Tennessee. Piedmont is subject to the regulatory provisions of the NCUC, PSCSC, Tennessee Public Utility Commission (TPUC) and FERC.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





BASIS OF PRESENTATION
These Condensed Consolidated Financial Statements have been prepared in accordance with generally accepted accounting principles (GAAP) in the U.S.GAAP for interim financial information and with the instructions to Form 10-Q and Regulation S-X. Accordingly, these Condensed Consolidated Financial Statements do not include all information and notes required by GAAP in the U.S. for annual financial statements. Since the interim Condensed Consolidated Financial Statements and Notes do not include all information and notes required by GAAP in the U.S. for annual financial statements the Condensed Consolidated Financial Statements and other information included in this quarterly report should be read in conjunction with the Consolidated Financial Statements and Notes in the Duke Energy Registrants’ combined Annual Report on Form 10-K/A10-K for the year ended December 31, 2017.2018.
The information in these combined notes relates to each of the Duke Energy Registrants as noted in the Index to Combined Notes to Condensed Consolidated Financial Statements. However, none of the registrants make any representations as to information related solely to Duke Energy or the subsidiaries of Duke Energy other than itself.
These Condensed Consolidated Financial Statements, in the opinion of the respective companies’ management, reflect all normal recurring adjustments necessary to fairly present the financial position and results of operations of each of the Duke Energy Registrants. Amounts reported in Duke Energy’s interim Condensed Consolidated Statements of Operations and each of the Subsidiary Registrants’ interim Condensed Consolidated Statements of Operations and Comprehensive Income are not necessarily indicative of amounts expected for the respective annual periods due to effects of seasonal temperature variations on energy consumption, regulatory rulings, timing of maintenance on electric generating units, changes in mark-to-market valuations, changing commodity prices and other factors.
In preparing financial statements that conform to GAAP, management must make estimates and assumptions that affect the reported amounts of assets and liabilities, the reported amounts of revenues and expenses, and the disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates.
Certain prior year amounts have been reclassified to conform toBASIS OF CONSOLIDATION
These Condensed Consolidated Financial Statements include, after eliminating intercompany transactions and balances, the current year presentation.
REVENUE
accounts of the Duke Energy recognizes revenue as customers obtain control of promised goodsRegistrants and services in an amount that reflects consideration expected in exchange for those goodssubsidiaries or services. Generally,VIEs where the delivery of electricity and natural gas results in the transfer of control to customers at the time the commodity is delivered and the amount of revenue recognized is equal to the amount billed to each customer, including estimated volumes delivered when billingsrespective Duke Energy Registrants have not yet occurred.control. See Note 13 for further information.additional information on VIEs. These Condensed Consolidated Financial Statements also reflect the Duke Energy Registrants’ proportionate share of certain jointly owned generation and transmission facilities.
NONCONTROLLING INTEREST
Duke Energy maintains a controlling financial interest in certain less-than wholly owned non-regulated subsidiaries. As a result, Duke Energy consolidates these subsidiaries and presents the third-party investors' portion of Duke Energy's net income (loss), net assets and comprehensive income (loss) as noncontrolling interest. Noncontrolling interest is included as a component of equity on the Condensed Consolidated Balance Sheet.
Several operating agreements of Duke Energy's subsidiaries with noncontrolling interest are subject to allocations of earnings, tax attributes and cash flows in accordance with contractual agreements that vary throughout the lives of the subsidiaries. Therefore, Duke Energy and the other investors' (the owners) interests in the subsidiaries are not fixed, and the subsidiaries apply the HLBV method in allocating book profit or loss and other comprehensive income or loss (all measured on a pretax basis) to the owners. The HLBV method measures the amounts that each owner would hypothetically claim at each balance sheet reporting date, including tax benefits realized by the owners, upon a hypothetical liquidation of the subsidiary at the net book value of its underlying assets. The change in the amount that each owner would hypothetically receive at the reporting date compared to the amount it would have received on the previous reporting date represents the amount of profit or loss allocated to each owner for the reporting period. During the second quarter of 2019, Duke Energy’s North Rosamond solar farm commenced commercial operations resulting in the allocation of losses to the noncontrolling tax equity members of $74 million utilizing the HLBV method.

43




FINANCIAL STATEMENTSORGANIZATION AND BASIS OF PRESENTATION


Other operating agreements of Duke Energy's subsidiaries with noncontrolling interest allocate profit and loss based on their pro rata shares of the ownership interest in the respective subsidiary. Therefore, Duke Energy allocates net income or loss and other comprehensive income or loss of these subsidiaries to the owners based on their pro rata shares.
CASH, CASH EQUIVALENTS AND RESTRICTED CASH
Duke Energy, Progress Energy and Duke Energy Florida have restricted cash balances related primarily to collateral assets, escrow deposits and variable interest entities (VIEs).VIEs. See Note 1213 for additional information. Restricted cash amounts are included in Other within Current Assets and Other Noncurrent Assets.Assets on the Condensed Consolidated Balance Sheets. The following table presents the components of cash, cash equivalents and restricted cash included in the Condensed Consolidated Balance Sheets.
 June 30, 2019 December 31, 2018
   Duke
   Duke
 Duke
Progress
Energy
 Duke
Progress
Energy
 Energy
Energy
Florida
 Energy
Energy
Florida
Current Assets       
Cash and cash equivalents$336
$51
$16
 $442
$67
$36
Other106
31
31
 141
39
39
Other Noncurrent Assets       
Other39
38

 8
6

Total cash, cash equivalents and restricted cash$481
$120
$47
 $591
$112
$75
 June 30, 2018 December 31, 2017
   Duke
   Duke
 Duke
Progress
Energy
 Duke
Progress
Energy
 Energy
Energy
Florida
 Energy
Energy
Florida
Current Assets       
Cash and cash equivalents$304
$37
$14
 $358
$40
$13
Other115
31
31
 138
40
40
Other Noncurrent Assets       
Other8
6

 9
7

Total cash, cash equivalents and restricted cash$427
$74
$45
 $505
$87
$53

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)






INVENTORY
Inventory is used for operations and is recorded primarily using the average cost method. Inventory related to regulated operations is valued at historical cost. Inventory related to nonregulated operations is valued at the lower of cost or market. Materials and supplies are recorded as inventory when purchased and subsequently charged to expense or capitalized to property, plant and equipment when installed. Inventory, including excess or obsolete inventory, is written-down to the lower of cost or market value. Once inventory has been written-down, it creates a new cost basis for the inventory that is not subsequently written-up. Provisions for inventory write-offs were not material at June 30, 2018,2019, and December 31, 2017.2018. The components of inventory are presented in the tables below.
June 30, 2018June 30, 2019
  Duke
   Duke
 Duke
 Duke
 Duke
    Duke
   Duke
 Duke
 Duke
 Duke
  
Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Materials and supplies$2,293
 $769
 $1,085
 $757
 $328
 $84
 $313
 $2
$2,252
 $749
 $1,036
 $709
 $327
 $76
 $323
 $3
Coal562
 173
 218
 109
 109
 15
 155
 
624
 235
 234
 160
 74
 17
 139
 
Natural gas, oil and other fuel322
 42
 218
 110
 109
 25
 2
 36
313
 41
 210
 111
 98
 31
 1
 30
Total inventory$3,177
 $984
 $1,521
 $976
 $546
 $124
 $470
 $38
$3,189
 $1,025
 $1,480
 $980
 $499
 $124
 $463
 $33
December 31, 2017December 31, 2018
  Duke
   Duke
 Duke
 Duke
 Duke
    Duke
   Duke
 Duke
 Duke
 Duke
  
Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Materials and supplies$2,293
 $744
 $1,118
 $774
 $343
 $82
 $309
 $2
$2,238
 $731
 $1,049
 $734
 $315
 $84
 $312
 $2
Coal603
 192
 255
 139
 116
 17
 139
 
491
 175
 192
 106
 86
 14
 109
 
Natural gas, oil and other fuel354
 35
 219
 104
 115
 34
 2
 64
355
 42
 218
 114
 103
 28
 1
 68
Total inventory$3,250
 $971
 $1,592
 $1,017
 $574
 $133
 $450
 $66
$3,084
 $948
 $1,459
 $954
 $504
 $126
 $422
 $70
EXCISE TAXES
Certain excise taxes levied by state or local governments are required to be paid even if not collected from the customer. These taxes are recognized on a gross basis. Otherwise, excise taxes are accounted for on a net basis.
Excise taxes accounted for on a gross basis within both Operating revenues and Property and other taxes on the Condensed Consolidated Statements of Operations were as follows.
 Three Months Ended June 30, Six Months Ended June 30,
(in millions)2018
 2017
 2018
 2017
Duke Energy$95

$91

$194

$182
Duke Energy Carolinas9
 9
 17
 18
Progress Energy56
 55
 110
 101
Duke Energy Progress5
 4
 10
 9
Duke Energy Florida51
 51
 100
 92
Duke Energy Ohio25
 23
 55
 51
Duke Energy Indiana5
 3
 11
 10
Piedmont
 1
 1
 2

NEW ACCOUNTING STANDARDS
TheExcept as noted below, the new accounting standards adopted for 2018 and 20172019 had no material impact on the presentation or results of operations, cash flows or financial position of the Duke Energy Registrants. While immaterial, adoption of the following accounting standards had the most significant impact on the Duke Energy results of operations, cash flows and financial position for the six months ended June 30, 2018.
Revenue from Contracts with Customers. In May 2014, the Financial Accounting Standards Board (FASB) issued revised accounting guidance for revenue recognition from contracts with customers. The core principle of this guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration expected in exchange for those goods or services. The amendments also required disclosure of sufficient information to allow users to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. The majority of Duke Energy’s revenue is in scope of the new guidance. Other revenue arrangements, such as alternative revenue programs and certain purchase power agreements (PPAs) and lighting tariffs accounted for as leases, are excluded from the scope of this guidance and, therefore, are accounted for and evaluated for separate presentation and disclosure under other relevant accounting guidance.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Duke Energy elected the modified retrospective method of adoption effective January 1, 2018. Under the modified retrospective method of adoption, prior year reported results are not restated. Adoption of this standard did not result in a material change in the timing or pattern of revenue recognition and a cumulative-effect adjustment was not recorded at January 1, 2018. Duke Energy utilized certain practical expedients including applying this guidance to open contracts at the date of adoption, expensing costs to obtain a contract where the amortization period of the asset would have been one year or less, ignoring the effects of a significant financing when the period between transfer of the good or service and payment is one year or less and recognizing revenues for certain contracts under the invoice practical expedient, which allows revenue recognition to be consistent with invoiced amounts (including estimated billings) provided certain criteria are met, including consideration of whether the invoiced amounts reasonably represent the value provided to customers.
In preparation for adoption, Duke Energy identified material revenue streams and reviewed representative contracts and tariffs, including those associated with certain long-term customer contracts such as wholesale contracts, PPAs and other customer arrangements. Duke Energy also monitored the activities of the power and utilities industry revenue recognition task force and has reviewed published positions on specific industry issues to evaluate the impact, if any, on Duke Energy’s specific contracts and conclusions.
Duke Energy applied the available practical expedient to portfolios of tariffs and contracts with similar characteristics. The vast majority of sales, including energy provided to retail customers, are from tariff offerings that provide natural gas or electricity without a defined contractual term ("at-will"). In most circumstances, revenue from contracts with customers is equivalent to the electricity or natural gas supplied and billed in that period (including estimated billings). As such, adoption of the new rules did not result in a shift in the timing or pattern of revenue recognition for such sales. While there have been changes to the captions and descriptions of revenues in Duke Energy’s financial statements, the most significant impact as a result of adopting the standard are additional disclosures around the nature, amount, timing and uncertainty of revenues and cash flows arising from contracts with customers. See Note 13 for further information.
Financial Instruments Classification and Measurement. In January 2018, Duke Energy adopted FASB guidance, which revised the classification and measurement of certain financial instruments. The adopted guidance changes the presentation of realized and unrealized gains and losses in certain equity securities that were previously recorded in accumulated other comprehensive income (AOCI). These gains and losses are now recorded in net income. An entity's equity investments that are accounted for under the equity method of accounting are not included within the scope of the new guidance. This guidance had a minimal impact on the Duke Energy Registrant's Condensed Consolidated Statements of Operations and Comprehensive Income as changes in the fair value of most of the Duke Energy Registrants' equity securities are deferred as regulatory assets or liabilities pursuant to accounting guidance for regulated operations. The resulting adjustment of unrealized gains and losses in AOCI to retained earnings was immaterial. The primary impact to Duke Energy as a result of implementing this guidance is adding disclosure requirements to present separately the financial assets and financial liabilities by measurement category and form of financial asset. See Notes 10 and 11 for further information.
Statement of Cash Flows. In November 2016, the FASB issued revised accounting guidance to reduce diversity in practice for the presentation and classification of restricted cash on the Condensed Consolidated Statements of Cash Flows. Under the updated guidance, restricted cash and restricted cash equivalents are included within beginning-of-period and end-of-period cash and cash equivalents on the Condensed Consolidated Statements of Cash Flows. Duke Energy adopted this guidance on January 1, 2018. The guidance has been applied using a retrospective transition method to each period presented. The adoption by Duke Energy of the revised guidance resulted in a change to the amount of Cash, cash equivalents and restricted cash explained when reconciling the beginning-of-period and end-of-period total amounts shown on the Condensed Consolidated Statements of Cash Flows. In addition, a reconciliation has been provided of Cash, cash equivalents and restricted cash reported within the Condensed Consolidated Balance Sheets that sums to the total of the same such amounts in the Condensed Consolidated Statements of Cash Flows. Prior to adoption, the Duke Energy Registrants reflected changes in noncurrent restricted cash within Cash Flows from Investing Activities and changes in current restricted cash within Cash Flows from Operating Activities on the Condensed Consolidated Statements of Cash Flows.
In August 2016, the FASB issued accounting guidance addressing diversity in practice for eight separate cash flow issues. The guidance requires entities to classify distributions received from equity method investees using either the cumulative earnings approach or the nature of the distribution approach. Duke Energy adopted this guidance on January 1, 2018, and elected the nature of distribution approach. This approach requires all distributions received to be categorized based on legal documentation describing the nature of the activities generating the distribution. Cash inflows resulting in a return on investment (surplus) will be reflected in Cash Flows from Operating Activities on the Condensed Consolidated Statements of Cash Flows, whereas cash inflows resulting in a return of investment (capital) will be reflected in Cash Flows from Investing Activities on the Condensed Consolidated Statements of Cash Flows. The guidance has been applied using the retrospective transition method to each period presented. There are no changes to the Condensed Consolidated Statements of Cash Flows for the periods presented as a result of this accounting change.
Retirement Benefits. In March 2017, the FASB issued revised accounting guidance for the presentation of net periodic costs related to benefit plans. Previous guidance required the aggregation of all the components of net periodic costs on the Condensed Consolidated Statement of Operations and did not require the disclosure of the location of net periodic costs on the Condensed Consolidated Statement of Operations. Under the amended guidance, the service cost component of net periodic costs is included within Operating Income within the same line as other compensation expenses. All other components of net periodic costs are outside of Operating Income. In addition, the updated guidance permits only the service cost component of net periodic costs to be capitalized to Inventory or Property, Plant and Equipment. This represents a change from previous guidance, which permitted all components of net periodic costs to be eligible for capitalization.
Duke Energy adopted this guidance on January 1, 2018. Under previous guidance, Duke Energy presented the total non-capitalized net periodic costs within Operation, maintenance and other on the Condensed Consolidated Statement of Operations. The adoption of this guidance resulted in a retrospective change to reclassify the presentation of the non-service cost (benefit) components of net periodic costs to Other income and expenses. Duke Energy utilized the practical expedient for retrospective presentation. The change in components of net periodic costs eligible for capitalization is applicable prospectively. Since Duke Energy’s service cost component is greater than the total net periodic costs, the change results in increased capitalization of net periodic costs, higher Operation, maintenance and other and higher Other income and expenses. The resulting prospective impact to Duke Energy is an immaterial increase in Net Income. See Note 15 for further information.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





For Duke Energy, the retrospective change resulted in higher Operation, maintenance and other and higher Other income and expenses, net, of $156 million, $131 million and $96 million for the years ended December 31, 2017, 2016 and 2015, respectively. There was no change to Net Income for these prior periods.
The following new Accounting Standards Updates (ASUs) have been issued, but have not yet been adopted by Duke Energy, as of June 30, 2018.
Leases. In February 2016, the FASB issued revised accounting guidance for leases. The core principle of this guidance is that a lessee should recognize the assets and liabilities that arise from leases on the balance sheet.
For This resulted in a material impact on the presentation for the statement of financial position of the Duke Energy this guidance isRegistrants for the period ended June 30, 2019, and an immaterial impact to the Duke Energy Registrants' results of operations for the three and six months ended June 30, 2019, and cash flows for the six months ended June 30, 2019.

44




FINANCIAL STATEMENTSORGANIZATION AND BASIS OF PRESENTATION


Duke Energy elected the modified retrospective method of adoption effective for interim and annual periods beginning January 1, 2019. The guidance will be applied using aUnder the modified retrospective approach.method of adoption, prior year reported results are not restated. For adoption, Duke Energy expectshas elected to elect certain ofapply the following practical expedients upon adoption:expedients:
Practical ExpedientDescription
Package of transition practical expedients (for leases commenced prior to adoption date and must be adopted as a package)Do not need to 1) reassess whether any expired or existing contracts are/or contain leases, 2) reassess the lease classification for any expired or existing leases and 3) reassess initial direct costs for any existing leases.
Short-term lease expedient (elect by class of underlying asset)Elect as an accounting policy to not apply the recognition requirements to short-term leases by asset class.
Lease and non-lease components (elect by class of underlying asset)Elect as an accounting policy to not separate non-lease components from lease components and instead account for each lease and associated non-lease component as a single lease component by asset class.
Hindsight expedient (when determining lease term)Elect to use hindsight to determine the lease term.
Existing and expired land easements not previously accounted for as leasesElect to not evaluate existing or expired easements under the new guidance and carry forward current accounting treatment.
Comparative reporting requirements for initial adoption


Elect to apply transition requirements at adoption date, recognize cumulative effect adjustment to retained earnings in period of adoption and not apply ASC 842the new requirements to comparative periods, including disclosures.
Lessor expedient (elect by class of underlying asset)


Elect as an accounting policy to aggregate non-lease components with the related lease component when specified conditions are met by asset class. Account for the combined component based on its predominant characteristic (revenue or operating lease).

Duke Energy is currently evaluatingevaluated the financial statement impact of adopting thisthe standard and is continuing to monitormonitored industry implementation issues, including pipeline laterals and renewable energy PPAs.issues. Under agreements considered leases, where Duke Energy expects an increase in assetsis the lessee, for the use of certain aircraft, space on communication towers, industrial equipment, fleet vehicles, fuel transportation (barges and liabilitiesrailcars), land, office space and PPAs are now recognized on itsthe balance sheet along withsheet. The Duke Energy Registrants did not have a material change to the addition of required disclosures of key lease information. However,financial statements from the ultimate impactadoption of the new standard hasfor contracts where it is the lessor. See Note 5 for further information.
No new accounting standards, issued but not yet been determined. System enhancements, including additional processes and controls, will be requiredadopted, are expected to facilitatehave a material impact on the identification, tracking and reporting of potential leases based upon requirements of the new lease standard. Duke Energy has begun the implementationRegistrants as of a third-party software tool to help with the adoption and ongoing accounting under the new standard.June 30, 2019.
2. BUSINESS SEGMENTS
Operating segments are determined based on information used by the chief operating decision-maker in deciding how to allocate resources and evaluate the performance of the business. Duke Energy evaluates segment performance based on segment income. Segment income is defined as income from continuing operations net of income attributable to noncontrolling interests. Segment income includes intercompany revenues and expenses that are eliminated on the Condensed Consolidated Financial Statements. Certain governance costs are allocated to each segment. In addition, direct interest expense and income taxes are included in segment income.
Duke Energy
Duke Energy's segment structure includes the following segments: Electric Utilities and Infrastructure, Gas Utilities and Infrastructure and Commercial Renewables.
The Electric Utilities and Infrastructure segment primarily includes Duke Energy's regulated electric utilities in the Carolinas, Florida and the Midwest. The regulated electric utilities conduct operations through the Subsidiary Registrants that are substantially all regulated and, accordingly, qualify for regulatory accounting treatment. Electric Utilities and Infrastructure also includes Duke Energy's electric transmission infrastructure investments.
The Gas Utilities and Infrastructure segment includes Piedmont, Duke Energy's natural gas local distribution companies in Ohio and Kentucky, and Duke Energy's natural gas storage and midstream pipeline investments. Gas Utilities and Infrastructure's operations are substantially all regulated and, accordingly, qualify for regulatory accounting treatment.
The Commercial Renewables segment is primarily comprised of nonregulated utility scaleutility-scale wind and solar generation assets located throughout the U.S.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes On April 24, 2019, Duke Energy executed an agreement to sell a minority interest in a portion of certain renewable assets. The portion of Duke Energy’s commercial renewables energy portfolio to be sold includes 49 percent of 37 operating wind, solar and battery storage assets and 33 percent of 11 operating solar assets across the U.S. The sale will result in pretax proceeds to Duke Energy of $415 million. Duke Energy will retain control of these assets, and, therefore, no gain or loss is expected to be recognized on the Condensed Consolidated Financial Statements – (Unaudited) – (Continued)of Operations upon closing of the transaction. The sale is subject to customary closing conditions, including approvals from the FERC, the Public Utility Commission of Texas and the Committee on Foreign Investment in the U.S. Duke Energy received FERC approval on July 26, 2019. The transaction is expected to close in the second half of 2019.





During the three months ended June 30, 2019, Duke Energy evaluated recoverability of its renewable merchant plants principally located in the Electric Reliability Council of Texas West market due to declining market pricing and declining long-term forecasted energy and capacity prices, primarily driven by lower forecasted natural gas prices. Duke Energy determined that the assets were not impaired because the carrying value of $160 million approximates the aggregate estimated future cash flows and further testing was not required. A continued decline in pricing would likely result in a future impairment.
The remainder of Duke Energy’s operations is presented as Other, which is primarily comprised of interest expense on holding company debt, unallocated corporate costs, and Duke Energy’s wholly owned captive insurance company, Bison, Insurance Company Limited (Bison). Other also includesand Duke Energy's 17.5 percent interest in National Methanol Company (NMC), a large regional producer of methyl tertiary butyl ether located in Saudi Arabia. The investment in NMC is accounted for under the equity method of accounting.NMC.

45




FINANCIAL STATEMENTSBUSINESS SEGMENTS


Business segment information is presented in the following tables. Segment assets presented exclude intercompany assets.
 Three Months Ended June 30, 2019
 Electric
 Gas
   Total
      
 Utilities and
 Utilities and
 Commercial
 Reportable
      
(in millions)Infrastructure
 Infrastructure
 Renewables
 Segments
 Other
 Eliminations
 Total
Unaffiliated revenues$5,467
 $282
 $118
 $5,867
 $6
 $
 $5,873
Intersegment revenues8
 24
 
 32
 19
 (51) 
Total revenues$5,475
 $306
 $118
 $5,899
 $25
 $(51) $5,873
Segment income (loss)$809
 $40
 $86
 $935
 $(115) $
 $820
Add back noncontrolling interests(a)
            (84)
Add back preferred stock dividend            12
Net income            $748
Segment assets$131,640
 $12,943
 $4,870
 $149,453
 $3,815
 $181
 $153,449
 Three Months Ended June 30, 2018
 Electric
 Gas
   Total
      
 Utilities and
 Utilities and
 Commercial
 Reportable
      
(in millions)Infrastructure
 Infrastructure
 Renewables
 Segments
 Other
 Eliminations
 Consolidated
Unaffiliated revenues$5,215
 $294
 $119
 $5,628
 $15
 $
 $5,643
Intersegment revenues8
 24
 
 32
 17
 (49) 
Total revenues$5,223
 $318
 $119
 $5,660
 $32
 $(49) $5,643
Segment income (loss)(a)(b)
$575
 $28
 $38
 $641
 $(136) $
 $505
Add back noncontrolling interests            2
Loss from discontinued operations, net of tax            (5)
Net income            $502
Segment assets$121,947
 $11,437
 $4,233
 $137,617
 $2,461
 $181
 $140,259

 Three Months Ended June 30, 2018
 Electric
 Gas
   Total
      
 Utilities and
 Utilities and
 Commercial
 Reportable
      
(in millions)Infrastructure
 Infrastructure
 Renewables
 Segments
 Other
 Eliminations
 Total
Unaffiliated revenues$5,215
 $294
 $119
 $5,628
 $15
 $
 $5,643
Intersegment revenues8
 24
 
 32
 17
 (49) 
Total revenues$5,223
 $318
 $119
 $5,660
 $32
 $(49) $5,643
Segment income (loss)(b)(c)
$575
 $28
 $38
 $641
 $(136) $
 $505
Add back noncontrolling interests            2
Loss from discontinued operations, net of tax            (5)
Net income            $502
 Three Months Ended June 30, 2017
 Electric
 Gas
   Total
      
 Utilities and
 Utilities and
 Commercial
 Reportable
      
(in millions)Infrastructure
 Infrastructure
 Renewables
 Segments
 Other
 Eliminations
 Consolidated
Unaffiliated revenues$5,150
 $279
 $110
 $5,539
 $16
 $
 $5,555
Intersegment revenues8
 22
 
 30
 19
 (49) 
Total revenues$5,158
 $301
 $110
 $5,569
 $35
 $(49) $5,555
Segment income (loss)(b)
$729
 $27
 $26
 $782
 $(94) $
 $688
Add back noncontrolling interests            3
Loss from discontinued operations, net of tax            (2)
Net income            $689


 Six Months Ended June 30, 2019
 Electric
 Gas
   Total
      
 Utilities and
 Utilities and
 Commercial
 Reportable
      
(in millions)Infrastructure
 Infrastructure
 Renewables
 Segments
 Other
 Eliminations
 Total
Unaffiliated revenues$10,788
 $1,014
 $224
 $12,026
 $10
 $
 $12,036
Intersegment revenues16
 48
 
 64
 36
 (100) 
Total revenues$10,804
 $1,062
 $224
 $12,090
 $46
 $(100) $12,036
Segment income (loss)$1,559
 $266
 $99
 $1,924
 $(204) $
 $1,720
Add back noncontrolling interests(a)
            (91)
Add back preferred stock dividend            12
Net income            $1,641
 Six Months Ended June 30, 2018
 Electric
 Gas
   Total
      
 Utilities and
 Utilities and
 Commercial
 Reportable
      
(in millions)Infrastructure
 Infrastructure
 Renewables
 Segments
 Other
 Eliminations
 Total
Unaffiliated revenues$10,530
 $997
 $220
 $11,747
 $31
 $
 $11,778
Intersegment revenues16
 48
 
 64
 36
 (100) 
Total revenues$10,546
 $1,045
 $220
 $11,811
 $67
 $(100) $11,778
Segment income (loss)(b)(c)(d)(e)
$1,325
 $144
 $58
 $1,527
 $(402) $
 $1,125
Add back noncontrolling interests            4
Loss from discontinued operations, net of tax            (5)
Net income            $1,124
 Six Months Ended June 30, 2018
 Electric
 Gas
   Total
      
 Utilities and
 Utilities and
 Commercial
 Reportable
      
(in millions)Infrastructure
 Infrastructure
 Renewables
 Segments
 Other
 Eliminations
 Consolidated
Unaffiliated revenues$10,530
 $997
 $220
 $11,747
 $31
 $
 $11,778
Intersegment revenues16
 48
 
 64
 36
 (100) 
Total revenues$10,546
 $1,045
 $220
 $11,811
 $67
 $(100) $11,778
Segment income (loss)(a)(b)(c)(d)
$1,325
 $144
 $58
 $1,527
 $(402) $
 $1,125
Add back noncontrolling interests            4
Loss from discontinued operations, net of tax            (5)
Net income            $1,124


46


PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)






 Six Months Ended June 30, 2017
 Electric
 Gas
   Total
      
 Utilities and
 Utilities and
 Commercial
 Reportable
      
(in millions)Infrastructure
 Infrastructure
 Renewables
 Segments
 Other
 Eliminations
 Consolidated
Unaffiliated revenues$10,090
 $927
 $238
 $11,255
 $29
 $
 $11,284
Intersegment revenues15
 44
 
 59
 39
 (98) 
Total revenues$10,105
 $971
 $238
 $11,314
 $68
 $(98) $11,284
Segment income (loss)(b)
$1,364
 $160
 $51
 $1,575
 $(171) $
 $1,404
Add back noncontrolling interests            4
Loss from discontinued operations, net of tax            (2)
Net income            $1,406
FINANCIAL STATEMENTSBUSINESS SEGMENTS



(a)Includes the allocation of losses to noncontrolling tax equity members. See Note 1 for additional information.
(b)Electric Utilities and Infrastructure includes regulatory and legislative impairment charges related to rate case orders, settlements or other actions of regulators or legislative bodies. See Note 3 for additional information.
(b)(c)Other includes costs to achieve the Piedmont acquisition.
(c)(d)Gas Utilities and Infrastructure includes an impairment of the investment in Constitution Pipeline Company, LLC (Constitution).Constitution. See Note 3 for additional information.
(d)(e)Other includes the loss on the sale of the retired Beckjord Generating Station (Beckjord) described below and a valuation allowance recorded against the alternative minimum tax credits subject to sequestration. See Note 17 for additional information on the valuation allowance.AMT credits.
In February 2018, Duke Energy sold Beckjord, a nonregulated facility retired during 2014, and recorded a pretax loss of $106 million within Gains (Losses) on Sales of Other Assets and Other, net and $1 million within Operation, maintenance and other on Duke Energy's Condensed Consolidated Statements of Operations for the six months ended June 30, 2018. The sale included the transfer of coal ash basins and other real property and indemnification from any and all potential future claims related to the property, whether arising under environmental laws or otherwise.
Duke Energy Ohio
Duke Energy Ohio has two reportable operating segments, Electric Utilities and Infrastructure and Gas Utilities and Infrastructure.
Electric Utilities and Infrastructure transmits and distributes electricity in portions of Ohio and generates, distributes and sells electricity in portions of Northern Kentucky. Gas Utilities and Infrastructure transports and sells natural gas in portions of Ohio and Northern Kentucky. Both reportable operating segments conduct operations primarily through Duke Energy Ohio and its wholly owned subsidiary, Duke Energy Kentucky.
The remainder of Duke Energy Ohio's operations is presented as Other, which is primarily comprised of governance costs allocated by its parent, Duke Energy, and revenues and expenses related to Duke Energy Ohio's contractual arrangement to buy power from the Ohio Valley Electric Corporation's (OVEC) power plants. See Note 8 for additional information on related party transactions.
 Three Months Ended June 30, 2018
 Electric
 Gas
 Total
      
 Utilities and
 Utilities and
 Reportable
      
(in millions)Infrastructure
 Infrastructure
 Segments
 Other
 Eliminations
 Consolidated
Total revenues$346
 $103
 $449
 $10
 $
 $459
Segment income (loss)/Net income39
 18
 57
 (11) 
 46
Segment assets$5,336
 $2,727
 $8,063
 $40
 $(2) $8,101
Other.
Three Months Ended June 30, 2017Three Months Ended June 30, 2019
Electric
 Gas
 Total
    Electric
 Gas
 Total
    
Utilities and
 Utilities and
 Reportable
    Utilities and
 Utilities and
 Reportable
    
(in millions)Infrastructure
 Infrastructure
 Segments
 Other
 Consolidated
Infrastructure
 Infrastructure
 Segments
 Other
 Total
Total revenues$329
 $100
 $429
 $8
 $437
$336
 $97
 $433
 $
 $433
Segment income (loss)/Net income22
 17
 39
 (9) 30
Segment income/Net (loss) income$31
 $17
 $48
 $(1) $47
Segment assets$5,914
 $2,948
 $8,862
 $27
 $8,889
 Three Months Ended June 30, 2018
 Electric
 Gas
 Total
    
 Utilities and
 Utilities and
 Reportable
    
(in millions)Infrastructure
 Infrastructure
 Segments
 Other
 Total
Total revenues$346
 $103
 $449
 $10
 $459
Segment income/Net (loss) income$39
 $18
 $57
 $(11) $46


 Six Months Ended June 30, 2019
 Electric
 Gas
 Total
    
 Utilities and
 Utilities and
 Reportable
    
(in millions)Infrastructure
 Infrastructure
 Segments
 Other
 Total
Total revenues$691
 $273
 $964
 $
 $964
Segment income/Net (loss) income$67
 $52
 $119
 $(3) $116
 Six Months Ended June 30, 2018
 Electric
 Gas
 Total
    
 Utilities and
 Utilities and
 Reportable
    
(in millions)Infrastructure
 Infrastructure
 Segments
 Other
 Consolidated
Total revenues$682
 $277
 $959
 $24
 $983
Segment income (loss)/Net income(a)
72
 52
 124
 (103) 21

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)






Six Months Ended June 30, 2017Six Months Ended June 30, 2018
Electric
 Gas
 Total
    Electric
 Gas
 Total
    
Utilities and
 Utilities and
 Reportable
    Utilities and
 Utilities and
 Reportable
    
(in millions)Infrastructure
 Infrastructure
 Segments
 Other
 Consolidated
Infrastructure
 Infrastructure
 Segments
 Other
 Total
Total revenues$665
 $270
 $935
 $20
 $955
$682
 $277
 $959
 $24
 $983
Segment income (loss)/Net income46
 42
 88
 (16) 72
Segment income/Net (loss) income(a)
$72
 $52
 $124
 $(103) $21
(a)    Other includes the loss on the sale of Beckjord.Beckjord described above.
3. REGULATORY MATTERS
RATE-RELATED INFORMATION
The NCUC, PSCSC, FPSC, IURC, PUCO, TPUC and KPSC approve rates for retail electric and natural gas services within their states. The FERC approves rates for electric sales to wholesale customers served under cost-based rates (excluding Ohio and Indiana), as well as sales of transmission service. The FERC also regulates certification and siting of new interstate natural gas pipeline projects.

47




FINANCIAL STATEMENTSREGULATORY MATTERS


Duke Energy Carolinas and Duke Energy Progress
Ash Basin Closure CostsHurricane Florence, Hurricane Michael and Winter Storm Diego Deferral – North CarolinaFilings
On December 30, 2016, Duke Energy Carolinas and Duke Energy Progress filed a joint petition with the NCUC seeking an accounting order authorizing deferral of certain costs incurred in connection with federal and state environmental remediation requirements related to the permanent closure of ash basins and other ash storage units at coal-fired generating facilities that have provided or are providing generation to customers located in North Carolina. The NCUC has consolidated Duke Energy Carolinas' and Duke Energy Progress’ coal ash deferral requests into their respective general rate case dockets for decision. See "2017 North Carolina Rate Case" sections below for additional discussion.
Power/Forward Deferral – South Carolina
On June 22,21, 2018, Duke Energy Carolinas and Duke Energy Progress filed a joint petition with the PSCSC seeking an accounting order authorizing deferral of certainNCUC petitions for approval to defer the incremental costs incurred in connection with grid reliability, resiliencythe response to Hurricane Florence, Hurricane Michael and modernization work that is being performed underWinter Storm Diego to a regulatory asset for recovery in the companies’ Power/Forward initiative.next base rate case. The NCUC issued an order requesting comments on the deferral positions. On July 25, 2018,March 5, 2019, the PSCSC ordered that the matter be setNorth Carolina Public Staff (Public Staff) filed comments. On April 2, 2019, Duke Energy Carolinas and Duke Energy Progress filed reply comments, which included revised estimates of approximately $553 million in incremental operation and maintenance expenses ($171 million and $382 million for filed commentsDuke Energy Carolinas and oral argument upon request of the Office of Regulatory Staff. A procedural schedule has not yet been issued.Duke Energy Progress, respectively) and approximately $96 million in capital costs ($20 million and $76 million for Duke Energy Carolinas and Duke Energy Progress, respectively). Duke Energy Carolinas and Duke Energy Progress cannot predict the outcome of this matter. Duke Energy Progress filed a similar request with the PSCSC on January 11, 2019, which also included a request for the continuation of prior deferrals requested for ice storms and Hurricane Matthew, and on January 30, 2019, the PSCSC issued a directive approving the deferral request, followed by an order issued on February 21, 2019. On March 15, 2019, Duke Energy Progress filed a request with FERC requesting permission to defer transmission-related storm costs that would be charged to wholesale transmission customers through Duke Energy Progress' Open Access Transmission Tariff (OATT) and to recover those costs from wholesale transmission customers over a three-year recovery period. FERC accepted the filing on May 14, 2019, which allows Duke Energy Progress to proceed with the proposed cost deferral and recovery.
Duke Energy Carolinas
2017 North Carolina Rate Case
On August 25, 2017, Duke Energy Carolinas filed an application with the NCUC for a rate increase for retail customers of approximately $647 million, which represented an approximate 13.6 percent increase in annual base revenues. The rate increase was driven by capital investments subsequent to the previous base rate case, including the William StatesW.S. Lee Combined Cycle Facility discussed below,CC, grid improvement projects, advanced metering infrastructure (AMI),AMI, investments in customer service technologies, costs of complying with coal combustion residuals (CCR)CCR regulations and the North Carolina Coal Ash Management Act of 2014 (Coal Ash Act) and recovery of costs related to licensing and development of the William States Lee III Nuclear Station (Lee Nuclear Station) discussed below.Station.
On February 28, 2018, Duke Energy Carolinas and the North Carolina Public Staff filed an Agreement and Stipulation of Partial Settlement resolving certain portions of the proceeding. Terms of the settlement included a return on equity of 9.9 percent and a capital structure of 52 percent equity and 48 percent debt. As a result of the settlement, Duke Energy Carolinas recorded a pretax charge of approximately $4 million in the first quarter of 2018 to Operation, maintenance and other on the Condensed Consolidated Statements of Operations.
On June 1, 2018, Duke Energy Carolinas and certain intervenors filed a Pilot Grid Rider Agreement and Stipulation (Grid Rider Stipulation) in which the parties agreed to the proposal Duke Energy Carolinas introduced in a post-hearing brief on April 27, 2018, along with additional commitments by Duke Energy Carolinas. Also on June 1, 2018, Duke Energy Carolinas and the Commercial Group filed a Partial Stipulation and Settlement Agreement to be considered in conjunction with the Stipulation.
Components of the Grid Rider Stipulation included:
Duke Energy Carolinas would recover Power/Forward costs through a pilot, three-year Grid Rider except for costs related to targeted undergrounding of power lines, cable and conduit replacement, and power pole replacement;
Excluded costs were to be deferred with a return until Duke Energy Carolinas’ next base rate case proceeding; and
Costs incurred during the three-year pilot, both rider recoverable and deferred, were subject to a 4.5 percent cumulative cap of total annual electric service revenue.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





On June 22, 2018, the NCUC issued an order approving the Stipulation of Partial Settlement and requiring a revenue reduction. The order also included the following material components not covered in the Stipulation:
Recovery of $554 million of deferred coal ash basin closure costs over a five-year period with a return at Duke Energy Carolinas' weighted average cost of capital (WACC);
Assessment of a $70 million management penalty ratably over a five-year period by reducing the annual recovery of the deferred coal ash costs;
Denial of Duke Energy Carolinas' request for recovery of future estimated ongoing annual coal ash costs of $201 million with approval to defer such costs with a return at Duke Energy Carolinas' WACC, to be considered for recovery in the next rate case;
Inclusion in rates of costs related to the Lee Combined Cycle Facility, two new solar facilities, and AMI deployment as requested;
Recovery of Lee Nuclear Station licensing and development cost of $347 million over a 12-year period, but denial of a return on the deferred balance of costs;
Reduction in revenue related to lower income tax expense resulting from the Federal Tax Cuts and Jobs Act (Tax Act), and a requirement to maintain all excess deferred income tax resulting from the Tax Act in a regulatory liability account pending flowback to customers as approved by the commission at the earlier of three years or Duke Energy Carolinas’ next general rate case proceeding; and
Denial of the proposed Grid Rider Stipulation related to Power/Forward costs and denial of deferral accounting treatment of the costs at this time. Duke Energy Carolinas may petition for deferral of grid modernization costs outside of a general rate case proceeding if it can show financial hardship or a stipulation that includes greater consensus among intervening parties on costs being classified as grid modernization.
As a result of the Order,order, Duke Energy Carolinas recorded a pretax charge of approximately $150 million in the second quarter of 2018 to Impairment charges and Operation, maintenance and other on the Condensed Consolidated Statements of Operations. The charge iswas primarily related to the denial of a return on the Lee Nuclear Project and for previously recognized return impactedthe assessment of a $70 million management penalty by reducing the annual recovery of deferred coal ash management penalty described above.costs by $14 million per year over a five-year recovery period. On July 27, 2018, NCUC approved Duke Energy Carolinas' compliance filing. As a result, revised customer rates will becomewere effective on August 1, 2018.
On July 20, 2018, the North Carolina Attorney General filed a Notice of Appeal to the North Carolina Supreme Court from the June 22, 2018, Order Accepting Stipulation, Deciding Contested Issues and Requiring Revenue Reduction issued by the NCUC. The Attorney General contends the commission’s order should be reversed and remanded, as it is in excess of the commission’s statutory authority; affected by errors of law; unsupported by competent, material and substantial evidence in view of the entire record as submitted; and arbitrary or capricious. The Sierra Club, North Carolina Sustainable Energy Association, North Carolina Justice Center, North Carolina Housing Coalition, Natural Resource Defense Council and Southern Alliance for Clean Energy have also filed Notices of Appeal to the North Carolina Supreme Court. On August 8, 2018, the Public Staff filed a Notice of Cross Appeal to the North Carolina Supreme Court, fromwhich contends the commission’s June 22, 2018, Order Acceptingorder should be reversed and remanded, as it is affected by errors of law, and is unsupported by substantial evidence with regard to the commission’s failure to consider substantial evidence of coal ash related environmental violations. On November 29, 2018, the North Carolina Attorney General's Office filed a motion with the North Carolina Supreme Court requesting the court consolidate the Duke Energy Carolinas and Duke Energy Progress appeals and enter an order adopting the parties’ proposed briefing schedule as set out in the filing. On November 29, 2018, the North Carolina Supreme Court adopted a schedule for briefing set forth in the motion to consolidate the Duke Energy Carolinas and Duke Energy Progress appeals. Appellant’s brief was filed on April 26, 2019. The Appellee response briefs are due on September 25, 2019. Duke Energy Carolinas cannot predict the outcome of this matter.
2018 South Carolina Rate Case
On November 8, 2018, Duke Energy Carolinas filed an application with the PSCSC for a rate increase for retail customers of approximately $168 million, which represents an approximate 10.0 percent increase in retail revenues. The request for rate increase was driven by capital investments and environmental compliance progress made by Duke Energy Carolinas since its previous rate case, including the further implementation of Duke Energy Carolinas’ generation modernization program, which consists of retiring, replacing and upgrading generation plants, investments in customer service technologies and continued investments in base work to maintain its transmission and distribution systems. The request included net tax benefits resulting from the Tax Act of $66 million to reflect the change in ongoing tax expense, primarily from the reduction in the federal income tax rate from 35 to 21 percent. The request also included $46 million to return EDIT resulting from the federal tax rate change and deferred revenues since January 2018 related to the change and benefits of $17 million from a reduction in North Carolina state income taxes allocable to South Carolina (EDIT Rider).

48




FINANCIAL STATEMENTSREGULATORY MATTERS


Duke Energy Carolinas also requested approval of its proposed Grid Improvement Plan (GIP), adjustments to its Prepaid Advantage Program and a variety of accounting orders related to ongoing costs for environmental compliance, including recovery over a five-year period of $242 million of deferred coal ash related compliance costs, grid investments between rate changes, incremental depreciation expense, a result of new depreciation rates from the depreciation study approved in the 2017 North Carolina Rate Case above, and the balance of development costs associated with the cancellation of the Lee Nuclear Project. Finally, Duke Energy Carolinas sought approval to establish a reserve and accrual for end-of-life nuclear costs for nuclear fuel and materials and supplies. On March 8, 2019, the ORS moved to establish a new and separate hearing docket to review and consider the GIP proposed by Duke Energy Carolinas. Subsequently, on March 12, 2019, the ORS and Duke Energy Carolinas executed a Stipulation Deciding Contested Issuesresolving the ORS’s motion. The Stipulation provides that costs incurred after January 1, 2019, for the GIP will be deferred with a return, subject to evaluation in a future rate proceeding, and Requiring Revenue Reduction.that Duke Energy Carolinas will refile for consideration of the GIP in a new docket for resolution by January 1, 2020. The Stipulation was approved by the PSCSC on June 19, 2019.
After hearings in March 2019, the PSCSC issued an order on May 21, 2019, which included a return on equity of 9.5 percent and a capital structure of 53 percent equity and 47 percent debt. The order also included the following material components:
Approval of cancellation of the Lee Nuclear Project, with Duke Energy Carolinas maintaining the Combined Operating License;
Approval of recovery of $125 million (South Carolina retail portion) of Lee Nuclear Project development costs (including AFUDC through December 2017) over a 12-year period, but denial of a return on the deferred balance of costs;
Approval of recovery of $96 million of coal ash costs over a five-year period with a return at Duke Energy Carolinas' WACC;
Denial of recovery of $115 million of certain coal ash costs deemed to be related to the Coal Ash Act and incremental to the federal CCR rule;
Approval of a $66 million decrease to base rates to reflect the change in ongoing tax expense, primarily the reduction in the federal income tax rate from 35 to 21 percent;
Approval of a $45 million decrease through the EDIT Rider to return EDIT resulting from the federal tax rate change and deferred revenues since January 2018 related to the change, to be returned in accordance with the Average Rate Assumption Method (ARAM) for protected EDIT, over a 20-year period for unprotected EDIT associated with Property, Plant and Equipment, over a five-year period for unprotected EDIT not associated with Property, Plant and Equipment and over a five-year period for the deferred revenues; and
Approval of a $17 million decrease through the EDIT Rider related to reductions in the North Carolina state income tax rate from 6.9 to 2.5 percent to be returned over a five-year period.
As a result of the May 21, 2019 order, revised customer rates were effective June 1, 2019. On May 31, 2019, Duke Energy Carolinas filed a Petition for Rehearing or Reconsideration of that order contending substantial rights of Duke Energy Carolinas were prejudiced by unlawful, arbitrary and capricious rulings by the commission on certain issues presented in the proceeding. On June 19, 2019, the PSCSC issued a Directive denying Duke Energy Carolinas' request to rehear or reconsider the commission's rulings on certain issues presented in the proceeding including coal ash remediation and disposal costs, return on equity and the recovery of a return on deferred operation and maintenance expenses. Duke Energy Carolinas awaits the order on reconsideration detailing the commission's decision. Based upon legal analysis and Duke Energy Carolinas' intention to file a notice of appeal with the South Carolina Supreme Court within 30 days of receipt of the order, Duke Energy Carolinas has not recorded an adjustment for its deferred coal ash costs. Duke Energy Carolinas cannot predict the outcome of this matter.
FERC Formula Rate Matter
On July 31, 2017, Piedmont Municipal Power Agency (PMPA)PMPA filed a complaint with FERC against Duke Energy Carolinas alleging that Duke Energy Carolinas misapplied the formula rate under the PPA between the parties by including in its rates amortization expense associated with regulatory assets and recorded in a certain account without FERC approval. On February 15, 2018, FERC issued an order ruling in favor of PMPA and ordered Duke Energy Carolinas to refund to PMPA all amounts improperly collected under the PPA. Duke Energy Carolinas has issued to PMPA and similarly situated wholesale customers refunds of approximately $25 million. FERC also set the matter for settlement and hearing. PMPA and other customers filed a protest to Duke Energy Carolinas' refund report claiming that the refunds are inadequate in that (1) Duke Energy Carolinas invoked the limitations periods in the contracts to limit the time period for which the refunds were paid and the customers disagree that this limitation applies, and (2) Duke Energy Carolinas refunded only amounts recovered through a certain account and the customers have asserted that the order applies to all regulatory assets. On July 3, 2018, FERC issued an order accepting Duke Energy Carolinas' refund report and ruling that these two claims are outside the scope of FERC's February order. The settlement agreements and revised formula rates for all parties to the proceeding were filed on December 28, 2018. On April 2, 2019, FERC issued an order approving the settlement agreement as filed. Since then, Duke Energy Carolinas cannot predicthas implemented the outcometerms of this matter.
William States Lee Combined Cycle Facility
the settlement in rates with all wholesale customers, including non-intervening customers. On April 9, 2014, the PSCSC grantedJuly 25, 2019, Duke Energy Carolinas and North Carolina Electric Membership Corporation (NCEMC) a Certificate of Environmental Compatibility and Public Convenience and Necessityreceived FERC approval for the construction and operation of a 750-megawatt (MW) combined-cycle natural gas-fired generating plant at Duke Energy Carolinas' existing William States Lee Generating Station in Anderson, South Carolina. Duke Energy Carolinas began construction in July 2015 and its share of the cost to build the facility was approximately $650 million, including allowanceaccounting treatment requested for funds used during construction (AFUDC). Approximately $600 million is being recovered through base rate or deferral filings in North Carolina and South Carolina. The remaining amount will becertain assets included in future rate filings. The project commenced commercial operation on April 5, 2018. NCEMC will own approximately 13 percent of the project.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Lee Nuclear Station
In December 2007, Duke Energy Carolinas applied tosettlement agreements. This is the NRC for combined operating licenses (COLs) for two Westinghouse Electric Company (Westinghouse) AP1000 reactors for the proposed William States Lee III Nuclear Station to be located at a site in Cherokee County, South Carolina. The NCUCfinal approval needed from FERC and PSCSC concurred with the prudency of Duke Energy Carolinas incurring certain project development and preconstruction costs through several separately issued orders, although full cost recovery is not guaranteed. In December 2016, the NRC issued a COL for each reactor. Duke Energy Carolinas is not required to build the nuclear reactors as a result of the COLs being issued.
The Duke Energy Carolinas rate case filing discussed above included a request to cancel the development of the Lee Nuclear Station project, recover incurred licensing and development costs and maintain the license issued by the NRC as an option for potential future development. The cancellation request was due to the Westinghouse bankruptcy filing and other market activity. The NCUC Order issued on June 22, 2018, approved the cancellation of the Lee Nuclear Project, allowed Duke Energy Carolinas to continue to maintain the COLs, provided for recovery of the North Carolina retail allocation of project development costs, including AFUDC accrued through December 31, 2017, over 12 years and disallowed any return on the unamortized balance during the 12-year recovery period.
Given the recent repeal of certain sections of the Base Load Review Act in South Carolina combined with the cancellation of the project, Duke Energy Carolinas determined that it was no longer probable it would be allowed a return on its share of project development costs attributable to South Carolina. As a result, Duke Energy Carolinas recorded a pretax impairment of $29 million within Impairment charges on the Condensed Consolidated Statements of Operations and Comprehensive Income.
South Carolina Petition
On June 22, 2018, Duke Energy Carolinas filed a petition with the PSCSC requesting an accounting order to defer certain costs incurred in connection with the addition of the William States Lee Combined Cycle Facility, the ongoing deployment of Duke Energy Carolinas new billing and Customer Information System and the addition of the Carolinas West Primary Distribution Control Center. This request totaling approximately $33 million was approved on July 25, 2018.concludes this proceeding.
Sale of Hydroelectric (Hydro) Plants
In May 2018, Duke Energy Carolinas entered an agreement for the sale of five hydro plants with a combined 18.7-MW generation capacity in the Western Carolinas region to Northbrook Energy. The completion of the transaction is subject to approval from FERC for the four FERC-licensed plants, as well as other state regulatory agencies and is contingent upon regulatory approval from the NCUC and PSCSC to defer the total estimated loss on the sale of approximately $40 million. On July 5, 2018, Duke Energy Carolinas filed with NCUC for approval of the sale of the five hydro plants to Northbrook, to transfer the Certificates of Public Convenience and NecessityCPCNs for the four North Carolina hydro plants and to establish a regulatory asset for the North Carolina retail portion of the difference between sales proceeds and net book value. On June 5, 2019, the NCUC issued an order approving the transfer of the hydro plants from Duke Energy Carolinas will also file with PSCSC requesting recoveryto Northbrook, granting deferral accounting and denying the Public Staff's motion for the total estimated loss. If commission approval is not received,reconsideration.

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FINANCIAL STATEMENTSREGULATORY MATTERS


On August 28, 2018, Duke Energy Carolinas can cancelfiled with PSCSC an Application for Approval of Transfer and Sale of Hydroelectric Generation Facilities, Acceptance for Filing of a Power Purchase Agreement and an Accounting Order to Establish a Regulatory Asset. On September 10, 2018, the sales agreementORS provided a letter to the commission stating its position on the application and retainon September 18, 2018, Duke Energy Carolinas requested this matter be carried over to allow Duke Energy Carolinas time to discuss certain accounting issues with the ORS. At their June 26, 2019, agenda meeting, the PSCSC voted to approve the transfer and sale subject to the recommendation of the ORS that the issuance of an Accounting Order will not preclude the ORS, the commission or any other party from addressing the reasonableness of these costs, any return sought and including any carrying costs in the next rate case.
On August 9, 2018, Duke Energy Carolinas and Northbrook filed a joint Application for Transfer of Licenses with the FERC. On December 27, 2018, the FERC issued its Order Approving Transfer of Licenses (“Order”) for the four FERC-licensed hydro facilities. If commission approval is received,plants. On January 18, 2019, Duke Energy Carolinas and Northbrook Carolina Hydro II, LLC requested a six-month extension of time to comply with the requirement of the Order that Northbrook submit to FERC certified copies of all instruments of conveyance and signed acceptance sheets within 60 days of the date of the Order. On February 14, 2019, FERC issued an order granting extensions until August 26, 2019, to comply with the requirements of the December 27, 2018 Order.
The closing is expected to occur during the first quarter ofin 2019. After closing, Duke Energy Carolinas will purchase all of the capacity and energy generated by these facilities at the avoided cost for five years through power purchase agreements. Duke Energy Carolinas cannot predict the outcome of this matter.
Duke Energy Progress
2017 North Carolina Rate Case
On June 1, 2017, Duke Energy Progress filed an application with the NCUC for a rate increase for retail customers of approximately $477 million, which represented an approximate 14.9 percent increase in annual base revenues. Subsequent to the filing, Duke Energy Progress adjusted the requested amount to $420 million, representing an approximate 13 percent increase. The rate increase iswas driven by capital investments subsequent to the previous base rate case, costs of complying with CCR regulations and the Coal Ash Act, costs relating to storm recovery, investments in customer service technologies and recovery of costs associated with renewable purchased power.
On December 16, 2016, Duke Energy Progress filed a petition with the NCUC requesting an accounting order to defer certain costs incurred in connection with response to Hurricane Matthew and other significant storms in 2016. The final estimate of incremental operation and maintenance and capital costs of $116 million was filed with the NCUC in September 2017. On July 10, 2017, the NCUC consolidated Duke Energy Progress' storm deferral request into the Duke Energy Progress rate case docket for decision.
On November 22, 2017, Duke Energy Progress and the North Carolina Public Staff filed an Agreement and Stipulation of Partial Settlement resolving certain portions of the proceeding. Terms of the settlement included a return on equity of 9.9 percent and a capital structure of 52 percent equity and 48 percent debt. As a result of the settlement, in 2017 Duke Energy Progress recorded pretax charges totaling approximately $25 million to Impairment charges and Operation, maintenance and other on the Condensed Consolidated Statements of Operations, principally related to disallowances from rate base of certain projects at the Mayo and Sutton plants. On February 23, 2018, the NCUC issued an order approving the stipulation. The order also included the following material components not covered in the stipulation:
Recovery of the remaining $234 million of deferred coal ash basin closure costs over a five-year period with a return at Duke Energy Progress' WACC, excluding $9.5 million of retail deferred coal ash basin costs related to ash hauling at Duke Energy Progress' Asheville Plant;
Assessment of a $30 million management penalty ratably over a five-year period by reducing the annual recovery of the deferred coal ash costs;
Denial of Duke Energy Progress' request for recovery of future estimated ongoing annual coal ash costs of $129 million with approval to defer such costs with a return at Duke Energy Progress' WACC, to be considered for recovery in the next rate case; and

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Approval to recover $51 million of the approximately $80 million deferred storm costs over a five-year period with amortization beginning in October 2016. The order did not allow the deferral of the associated capital costs or a return on the deferred balance during the deferral period.
The order also impacted certain amounts that were similarly recorded on Duke Energy Carolinas' Condensed Consolidated Balance Sheets. As a result of the order, Duke Energy Progress and Duke Energy Carolinas recorded pretax charges of $68 million and $14 million, respectively, in the first quarter of 2018 to Impairment charges, Operation, maintenance and other and Interest Expense on the Condensed Consolidated Statements of Operations. These charges primarily related to the coal ash basin disallowance and previously recognized return impacted by the coal ash management penalty and deferred storm cost adjustments. Revised customer rates became effective on March 16, 2018.
On May 15, 2018, the Public Staff of the NCUC filed a Notice of Cross Appeal to the North Carolina Supreme Court from the NCUC's February 23, 2018, Order Accepting Stipulation, Deciding Contested Issues and Granting Partial Rate Increase issued by the NCUC.Order. The Public Staff contendcontends the commission’sNCUC’s order should be reversed and remanded, as it is affected by errors of law, and is unsupported by competent, material and substantial evidence in view of the entire record as submitted. Duke Energy Progress cannot predict the outcome of this matter. The North Carolina Attorney General and Sierra Club have also filed Notices of Appeal to the North Carolina Supreme Court from the February 23, 2018, Order Accepting Stipulation, Deciding Contested IssuesOrder. On November 29, 2018, the North Carolina Attorney General's Office filed a motion with the North Carolina Supreme Court requesting the court consolidate the Duke Energy Progress and Granting partial Rate Increase.Duke Energy Carolinas appeals and enter an order adopting the parties’ proposed briefing schedule as set out in the filing. Appellant’s brief was filed on April 26, 2019. The Appellee response briefs are due on September 25, 2019. Duke Energy Progress cannot predict the outcome of this matter.
2018 South Carolina Rate Case
In December 2016,On November 8, 2018, Duke Energy Progress filed an application with the PSCSC approvedfor a rate increase for retail customers of approximately $59 million, which represents an approximate 10.3 percent increase in annual base revenues. The rate increase is driven by capital investments and environmental compliance progress made by Duke Energy Progress since its previous rate case, settlement agreement amongincluding the Officefurther implementation of Regulatory Staff, intervenorsDuke Energy Progress’ generation modernization program, which consists of retiring, replacing and upgrading generation plants, investments in customer service technologies and continued investments in base work to maintain its transmission and distribution systems. The request included a decrease resulting from the Tax Act of $17 million to reflect the change in ongoing tax expense, primarily the reduction in the federal income tax rate from 35 to 21 percent. The request also included $10 million to return EDIT resulting from the federal tax rate change and deferred revenues since January 2018 related to the change (EDIT Rider) and a $12 million increase due to the expiration of EDITs related to reductions in North Carolina state income taxes allocable to South Carolina.
Duke Energy Progress also requested approval of its proposed GIP, approval of a Prepaid Advantage Program and a variety of accounting orders related to ongoing costs for environmental compliance, including recovery over a five-year period of $51 million of deferred coal ash related compliance costs, AMI deployment, grid investments between rate changes and regulatory asset treatment related to the retirement of a generating plant located in Asheville, North Carolina. Finally, Duke Energy Progress sought approval to establish a reserve and accrual for end-of-life nuclear costs for materials and supplies and nuclear fuel. On March 8, 2019, the ORS moved to establish a new and separate hearing docket to review and consider the GIP proposed by Duke Energy Progress. Subsequently, on March 12, 2019, the ORS and Duke Energy Progress. Terms ofCarolinas executed a Stipulation resolving the settlement agreement included an approximate $56 million increase in revenues over a two-year period. An increase of approximately $38 million in revenues was effective January 1, 2017,ORS’s motion, and an additional increase of approximately $18.5 million in revenues was effective January 1, 2018. Duke Energy Progress amortized approximately $18.5 million fromagreed to the cost of removal reserveStipulation, as did other parties in 2017. Other settlement terms included a rate of return on equity of 10.1 percent, recovery of coal ash costs incurred from January 1, 2015, through June 30, 2016, over a 15year period and ongoing deferral of allocated ash basin closure costs from July 1, 2016, until the next base rate case. The settlement alsoStipulation provides that costs incurred after January 1, 2019, for the GIP will be deferred with a return, with all costs subject to evaluation in a future rate proceeding, and that Duke Energy Progress will refile for consideration of the GIP in a new docket for resolution by January 1, 2020. The Stipulation was approved by the PSCSC on June 19, 2019.

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FINANCIAL STATEMENTSREGULATORY MATTERS


After hearings in April 2019, the PSCSC issued an order on May 21, 2019, which included a return on equity of 9.5 percent and a capital structure of 53 percent equity and 47 percent debt. The order also included the following material components:
Approval of recovery of $4 million of coal ash costs over a five-year period with a return at Duke Energy Progress' WACC;
Denial of recovery of $65 million of certain coal ash costs deemed to be related to the Coal Ash Act and incremental to the federal CCR rule;
Approval of a $17 million decrease to base rates to reflect the change in ongoing tax expense, primarily the reduction in the federal income tax rate from 35 to 21 percent;
Approval of a $12 million decrease through the EDIT Tax Savings Rider resulting from the federal tax rate change and deferred revenues since January 2018 related to the change, to be returned in accordance with ARAM for protected EDIT, over a 20-year period for unprotected EDIT associated with Property, Plant and Equipment, over a five-year period for unprotected EDIT not seek anassociated with Property, Plant and Equipment and over a three-year period for the deferred revenues; and
Approval of a $12 million increase due to the expiration of EDIT related to reductions in the North Carolina state income tax rate from 6.9 to 2.5 percent.
As a result of the order, revised customer rates were effective June 1, 2019. On May 31, 2019, Duke Energy Progress filed a Petition for Rehearing or Reconsideration of that order contending substantial rights of Duke Energy Progress were prejudiced by unlawful, arbitrary and capricious rulings by the commission on certain issues presented in the proceeding. On June 19, 2019, the PSCSC issued a Directive denying Duke Energy Progress' request to rehear or reconsider the commission's rulings on certain issues presented in the proceeding including coal ash remediation and disposal costs, return on equity and the recovery of a return on deferred operation and maintenance expenses, but allowing additional litigation-related costs. As a result of the Directive allowing litigation-related costs, customer rates were revised effective July 1, 2019. Duke Energy Progress awaits the order on reconsideration detailing the commission's decision. Based upon legal analysis and Duke Energy Progress' intention to file a notice of appeal with the South Carolina to occur prior to 2019, with limited exceptions.Supreme Court within 30 days of receipt of the order, Duke Energy Progress has not recorded an adjustment for its deferred coal ash costs. Duke Energy Progress cannot predict the outcome of this matter.
Western Carolinas Modernization Plan
On November 4, 2015, Duke Energy Progress announced a Western Carolinas Modernization Plan, which included retirement of the existing Asheville coal-fired plant, the construction of two 280‑MW combined-cycle natural gas plants having dual-fuel capability, with the option to build a third natural gas simple cycle unit in 2023 based upon the outcome of initiatives to reduce the region's power demand. The plan also included upgrades to existing transmission lines and substations, installation of solar generation and a pilot battery storage project. These investments will be made within the next seven years. Duke Energy Progress is also workingworked with the local natural gas distribution company to upgrade an existing natural gas pipeline to serve the natural gas plant. The lease became effective on March 2, 2019.
On March 28, 2016, the NCUC issued an order approving a Certificate of Public Convenience and Necessity (CPCN)CPCN for the new combined-cycle natural gas plants, but denying the CPCN for the contingent simple cycle unit without prejudice to Duke Energy Progress to refile for approval in the future. On March 28, 2018,2019, Duke Energy Progress filed an annual progress report for the construction of the combined-cycle plants with the NCUC, with an estimated cost of $893 million. Site preparation activities for the combined-cycle plants are complete and construction of these plants began in 2017, with an expected in-service date in late 2019.
On October 8, 2018, Duke Energy Progress plansfiled an application with the NCUC for a CPCN to file for future approvals related toconstruct the proposed solar generationHot Springs Microgrid Solar and pilot battery storage project.Battery Storage Facility. On March 22, 2019, Duke Energy Progress and the Public Staff filed a Joint Proposed Order. On May 10, 2019, the NCUC issued an Order Granting Certificate of Public Convenience and Necessity with Conditions.
The carrying value of the 376-MW Asheville coal-fired plant, including associated ash basin closure costs, of $344$284 million and $385$327 million is included in Generation facilities to be retired, net on Duke Energy Progress' Condensed Consolidated Balance Sheets as of June 30, 2018,2019, and December 31, 2017,2018, respectively. Duke Energy Progress' request for a regulatory asset at the time of retirement with amortization over a 10-year period was approved by the NCUC on February 23, 2018.
Shearon Harris Nuclear Plant Expansion
In 2006, Duke Energy Progress selected a site at Harris to evaluate for possible future nuclear expansion. On February 19, 2008, Duke Energy Progress filed its COL application with the NRC for two Westinghouse AP1000 reactors at Harris, which the NRC docketed for review. On May 2, 2013, Duke Energy Progress filed a letter with the NRC requesting the NRC to suspend its review activities associated with the COL at the Harris site. The NCUC and PSCSC approved deferral of retail costs. Total deferred costs were approximately $47 million as of December 31, 2017, and are recorded in Regulatory assets on Duke Energy Progress’ Condensed Consolidated Balance Sheets. On November 17, 2016, the FERC approved Duke Energy Progress’ rate recovery request filing for the wholesale ratepayers’ share of the abandonment costs, including a debt only return to be recovered through revised formula rates and amortized over a 15-year period beginning May 1, 2014. As part of the settlement agreement for the 2017 North Carolina Rate Case discussed above, Duke Energy Progress will amortize the regulatory asset over an eight-year period. NCUC approved the settlement on February 23, 2018.
South Carolina Petitions
On June 22, 2018, Duke Energy Progress filed a petition with the PSCSC seeking an accounting order authorizing Duke Energy Progress to adopt new depreciation rates, effective March 16, 2018, that reflect the results of Duke Energy Progress’ most recent depreciation study. Also on June 22, 2018, Duke Energy Progress filed a petition with the PSCSC requesting an accounting order to defer certain costs incurred in connection with the deployment of AMI, the ongoing deployment of Duke Energy Progress' new billing and Customer Information System, new depreciation rates and costs incurred in connection with the excess return of certain state taxes from North Carolina. These requests totaling approximately $20 million were approved on July 25, 2018.

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PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





FINANCIAL STATEMENTSREGULATORY MATTERS
FERC Form 1 Reporting Matter
On October 18, 2017, Fayetteville Public Works Commission (FPWC) filed with FERC a complaint against Duke Energy Progress. In the complaint, FPWC alleges that Duke Energy Progress’ change in its method of reporting materials and supplies inventory on FERC Form 1 for 2015 constituted a change in accounting practice that Duke Energy Progress was not permitted to implement without first obtaining FERC approval. On April 23, 2018, FERC issued an order finding that Duke Energy Progress’ new reporting methodology was not proper and required Duke Energy Progress to revise its FERC Form 1s beginning in 2014 and to issue refunds to formula rate customers. Duke Energy Progress estimates that these refunds will total approximately $14 million. On May 23, 2018, Duke Energy Progress filed a request for rehearing alleging that FERC’s order is incorrect. Duke Energy Progress revised its FERC Form 1 filings in June 2018. Duke Energy Progress cannot predict the outcome of this matter.
Duke Energy Florida
Storm Restoration Cost Recovery
In September 2017, Duke Energy Florida’s service territory suffered significant damage from Hurricane Irma, resulting in approximately 1.31 million customers experiencing outages. In the fourth quarter of 2017, Duke Energy Florida also incurred preparation costs related to Hurricane Nate. On December 28, 2017, Duke Energy Florida filed a petition with the FPSC to recover incremental storm restoration costs for hurricanesHurricane Irma and Hurricane Nate and to replenish the storm reserve. On February 6, 2018, the FPSC approved a stipulation that would apply tax savings resulting from the Tax Act toward storm costs effective January 2018 in lieu of implementing a storm surcharge. Storm costs are currently expected to be fully recovered by approximately mid-2021. On May 31, 2018, Duke Energy Florida filed a petition for approval of actual storm restoration costs and associated recovery process related to HurricanesHurricane Irma and Hurricane Nate. The petition is seekingsought the approval for the recovery in the amount of $510 million in actual recoverable storm restoration costs, including the replenishment of Duke Energy Florida’s storm reserve of $132 million, and the process for recovering these recoverable storm costs. TheOn August 20, 2018, the FPSC approved Duke Energy Florida's unopposed Motion for Continuance filed August 17, 2018, to allow for an evidentiary hearing in this matter is scheduled formatter. On January 28, 2019, Duke Energy Florida made a supplemental filing to reduce the weektotal storm cost recovery from $510 million to $508 million. On April 3, 2019, the FPSC issued an Order abating all remaining filing dates. On April 9, 2019, Duke Energy Florida filed an unopposed motion to approve a settlement agreement resolving all outstanding issues in this docket. On June 13, 2019, the FPSC issued its order approving the settlement agreement. The Storm Cost Settlement Agreement obligates Duke Energy Florida to capitalize $18 million of October 15, 2018.storm costs and remove $6 million of operating and maintenance expense, thereby reducing the requested storm cost recovery amount by $24 million. Duke Energy Florida will also implement process changes with respect to storm cost restoration. At June 30, 2019, and December 31, 2018, Duke Energy Florida's Condensed Consolidated Balance Sheets included approximately $295$118 million and $217 million, respectively, of recoverable costs under the FPSC's storm rule in Regulatory assets within Current Assets and Other Noncurrent Assets related to storm recovery.recovery for Hurricane Irma and Hurricane Nate.
In October 2018, Duke Energy Florida’s service territory suffered damage when Hurricane Michael made landfall as a Category 5 hurricane with maximum sustained winds of 160 mph. The storm caused catastrophic damage from wind and storm surge, particularly from Panama City Beach to Mexico Beach, resulting in widespread outages and significant damage to transmission and distribution facilities across the central Florida Panhandle. In response to Hurricane Michael, Duke Energy Florida cannot predictrestored service to approximately 72,000 customers. Total current estimated incremental operation and maintenance and capital costs are $360 million. Approximately $82 million and $35 million of the outcomecosts are included in Net property, plant and equipment on the Condensed Consolidated Balance Sheets as of this matter.
Tax Act
Pursuant toJune 30, 2019, and December 31, 2018, respectively. Approximately $225 million and $165 million of costs are included in Regulatory assets within Other Noncurrent Assets on the Condensed Consolidated Balance Sheets as of June 30, 2019, and December 31, 2018, respectively, representing recoverable costs under the FPSC’s storm rule and Duke Energy Florida's 2017 Revised and Restated Settlement Agreement, on May 31,OATT formula rates. Additional costs could be incurred in 2019 related to this fourth quarter 2018 storm.
Duke Energy Florida filed a petition with the FPSC on April 30, 2019, to recover the retail portion of incremental storm restoration costs for Hurricane Michael. The estimated recovery amount is approximately $221 million. On June 11, 2019, the FPSC approved the petition for recovery of incremental storm restoration costs related to Hurricane Michael. The FPSC also approved the stipulation Duke Energy Florida filed, which will allow Duke Energy Florida to use the tax savings resulting from the Tax Act which included annual tax savingsto recover these storm costs in lieu of $84 million and annual amortization of excess deferred taxes of $67 millionimplementing a storm surcharge. Approved storm costs are currently expected to be fully recovered by approximately year-end 2021. Duke Energy Florida expects to file actual costs for a total of $151 million. The pretax revenue requirement impact is $201 million, of which $50 million will be offsetapproval with accelerated depreciation of Crystal River 4 and 5 coal units and $151 million will be offset by Hurricane Irma storm cost recovery as explainedthe FPSC in the Storm Restoration Cost Recovery section above. The petition is subject to review and approval by the FPSC. The hearing is scheduled to begin on January 8, 2019. Duke Energy Florida cannot predict the outcome of this matter.
Citrus County Combined Cycle Facility
On October 2, 2014, the FPSC granted Duke Energy Florida a Determination of Need for the construction of a 1,640-MW combined-cycle natural gas plant in Citrus County, Florida. On May 5, 2015, the Florida Department of Environmental Protection approved Duke Energy Florida's Site Certification Application. The project has received all required permits and approvals and construction began in October 2015. The facility is expected to be commercially available by the end of 2018 at an estimated cost of $1.5 billion, including AFUDC. Actual costs in excess of the estimated amount may not be collected from customers absent a showing of extraordinary circumstances. On April 2, 2018, Duke Energy Florida filed a petition seeking approval to include in base rates the revenue requirements associated with the new facility. The annual retail revenue requirement is approximately $200 million. On July 10, 2018, the FPSC voted to approve Duke Energy Florida's request to include the revenue requirements for the new Citrus County combined-cycle units in base rates. The rate increase for the first unit is expected to take place in November 2018 and the rate increase for the second unit is expected to take place in January 2019. The plant will receive natural gas from the Sabal Trail pipeline discussed below.
Duke Energy Ohio
2017 Electric Security Plan Filing
On June 1, 2017, Duke Energy Ohio filed with the PUCO a request for a standard service offer in the form of an electric security plan (ESP). If approved by the PUCO, the term of the ESP would be from June 1, 2018, to May 31, 2025. Terms of the ESP include continuation of market-based customer rates through competitive procurement processes for generation, continuation and expansion of existing rider mechanisms and proposed new rider mechanisms relating to regulatory mandates, costs incurred to enhance the customer experience and transform the grid and a service reliability rider for vegetation management. On February 15, 2018, the procedural schedule was suspended to facilitate ongoing settlement discussions. On April 13, 2018, Duke Energy Ohio filed a Motion to consolidate this proceeding with several other cases currently pending before the PUCO, including, but not limited to, its Electric Base Rate Case. Additionally, on April 13, 2018, Duke Energy Ohio, along with certain intervenors, filed a Stipulation and Recommendation (Stipulation) with the PUCO resolving certain issues in this proceeding. The Stipulation establishes a regulatory model for the next seven years via the approval of the ESP and continues the current model for procuring supply for non-shopping customers, including recovery mechanisms. The Stipulation is subject to the review and approval of PUCO. An evidentiary hearing to review the Stipulation and other issues in the cases will conclude on August 6, 2018. Duke Energy Ohio cannot predict the outcome of this matter.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Electric Base Rate Case
Duke Energy Ohio filed with the PUCO an electric distribution base rate case application and supporting testimony in March 2017. Duke Energy Ohio has requested an estimated annual increase of approximately $15 million and a return on equity of 10.4 percent. The application also includes requests to continue certain current riders and establish new riders. On September 26, 2017, the PUCO staff filed a report recommending a revenue decrease between approximately $18 million and $29 million and a return on equity between 9.22 percent and 10.24 percent. On February 15, 2018, the procedural schedule was suspended to facilitate ongoing settlement discussions. On April 13, 2018, Duke Energy Ohio filed a Motion to consolidate this proceeding with several other cases currently pending before the PUCO. On April 13, 2018, Duke Energy Ohio, along with certain intervenors, filed the Stipulation with the PUCO resolving certain issues in this proceeding. Major components of the Stipulation include a $19 million annual base distribution rate decrease with a return on equity of 9.84 percent based upon a capital structure of 50.75 percent equity and 49.25 percent debt. Upon approval of new rates, Duke Energy Ohio's rider for recovering its initial SmartGrid implementation ends as the costs will be recovered through base rates. The Stipulation also renews 14 existing riders, some of which were included in the Company's ESP, and two new riders including the Enhanced Service Reliability Rider to recover vegetation management costs not included in base rates, up to $10 million per year (operation and maintenance only) and the Power Forward Rider to recover costs incurred to enhance the customer experience and further transform the grid (operation and maintenance and capital). The Stipulation is subject to the review and approval of the PUCO. An evidentiary hearing to review the Stipulation and other issues in the cases will conclude on August 6, 2018. In addition to the changes in revenue attributable to the Stipulation, Duke Energy Ohio’s capital-related riders, including the Distribution Capital Investments Rider, began to reflect the lower federal income tax rate associated with the Tax Act with updates to customers’ bills beginning April 1, 2018. This change reduces electric revenue by approximately $20 million on an annualized basis. Duke Energy Ohio cannot predict the outcome of this matter.
Ohio Valley Electric Corporation
On March 31, 2017, Duke Energy Ohio filed for approval to adjust its existing price stabilization rider (Rider PSR), which is currently set at zero dollars, to pass through net costs related to its contractual entitlement to capacity and energy from the generating assets owned by OVEC. Duke Energy Ohio is seeking deferral authority for net costs incurred from April 1, 2017, until the new rates under Rider PSR are put into effect. Various intervenors have filed motions to dismiss or stay the proceeding and Duke Energy Ohio has opposed these filings. On April 13, 2018, Duke Energy Ohio filed a Motion to consolidate this proceeding with several other cases currently pending before the PUCO. Also on April 13, 2018, Duke Energy Ohio, along with certain intervenors, filed a Stipulation with the PUCO resolving certain issues in this proceeding. The Stipulation, if approved, would activate Rider PSR for recovery of net costs incurred since January 1, 2018. The Stipulation is subject to the review and approval of PUCO. An evidentiary hearing to review the Stipulation and other issues in the cases will conclude on August 6, 2018. See Note 12 for additional discussion of Duke Energy Ohio's ownership interest in OVEC. Duke Energy Ohio cannot predict the outcome of this matter.
Tax Act
Pursuant to Duke Energy Florida's 2017 Settlement, on May 31, 2018, Duke Energy Florida filed a petition related to the Tax Act, which included revenue requirement impacts of annual tax savings of $134 million and estimated annual amortization of EDIT of $67 million for a total of $201 million. Of this amount, $50 million would be offset by accelerated depreciation of Crystal River 4 and 5 coal units and an estimated $151 million would be offset by Hurricane Irma storm cost recovery as explained in the Storm Restoration Cost Recovery section above. On December 27, 2018, Duke Energy Florida filed actual EDIT balances and amortization based on its 2017 filed tax return. This increased the revenue requirement impact of the amortization of EDIT by $4 million, from $67 million to $71 million, which increased the total storm amortization from $151 million to $155 million. On January 8, 2019, the FPSC approved a joint motion by Duke Energy Florida and the Office of Public Counsel resolving all stipulated positions. As part of that stipulation, Duke Energy Florida agreed to seek a Private Letter Ruling (PLR) from the IRS on its treatment of cost of removal (COR) as mostly protected by tax normalization rules. If the IRS rules that COR is not protected by tax normalization rules, then Duke Energy Florida will make a final adjustment to the amortization of EDIT and an adjustment to the storm recovery amount retroactive to January 2018. The IRS has communicated that it will not issue individual PLRs on the treatment of COR. Rather, the IRS is drafting a notice that will request comments on a number of issues, including COR, and the IRS plans to issue industrywide guidance on those issues. Duke Energy Florida cannot predict the outcome of this matter.
Solar Base Rate Adjustment
On July 31, 2018, Duke Energy Florida petitioned the FPSC to include in base rates the revenue requirements for its first two solar generation projects, the Hamilton Project and the Columbia Project, as authorized by the 2017 Settlement. The Hamilton Project, which was placed into service on December 22, 2018, has an annual retail revenue requirement of $15 million. At its October 30, 2018, Agenda Conference, the FPSC approved the rate increase related to the Hamilton Project to go into effect beginning with the first billing cycle in January 2019 under its file and suspend authority, and revised customer rates became effective in January 2019. The Columbia Project has a projected annual revenue requirement of $14 million and a projected in-service date in early 2020; the associated rate increase would take place with the first month’s billing cycle after the Columbia Project goes into service. On April 2, 2019, the commission approved both solar projects as filed.

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On March 25, 2019, Duke Energy Florida petitioned the FPSC to include in base rates the revenue requirements for its next wave of solar generation projects, the Trenton, Lake Placid and DeBary Solar Projects, as authorized by the 2017 Settlement. The annual retail revenue requirement for the Trenton and Lake Placid Projects is $13 million and $8 million, respectively, with projected in-service dates in the fourth quarter of 2019. The DeBary Project has a projected annual revenue requirement of $11 million and a projected in-service date in the first quarter of 2020. The associated rate increase would take place with the first month’s billing cycle after each solar generation project goes into service. On July 22, 2019, the FPSC issued an order approving Duke Energy Florida's request.
Crystal River Unit 3 Accelerated Decommissioning Filing
On May 29, 2019, Duke Energy Florida entered into a Decommissioning Services Agreement for the accelerated decommissioning of the Crystal River Unit 3 nuclear power station located in Citrus County, Florida, with ADP CR3, LLC and ADP SF1, LLC, each of which is a wholly owned subsidiary of Accelerated Decommissioning Partners, LLC, a joint venture between NorthStar Group Services, Inc. and Orano USA LLC. Closing of this Agreement is contingent upon the approval of the NRC and FPSC. If approved, the decommissioning will be accelerated starting in 2020 and continuing through 2027, rather than the expected time frame under SAFSTOR of starting in 2067 and ending in 2074. Duke Energy Florida expects that the assets of the Nuclear Decommissioning Trust Fund will be sufficient to cover the contract price. On July 10, 2019, Duke Energy Florida petitioned the FPSC for approval of the Agreement. Duke Energy Florida cannot predict the outcome of this matter.
Duke Energy Ohio
2017 Electric Security Plan
On June 1, 2017, Duke Energy Ohio filed with the PUCO a request for a standard service offer in the form of an ESP. On February 15, 2018, the procedural schedule was suspended to facilitate ongoing settlement discussions. On April 13, 2018, Duke Energy Ohio filed a Motion to consolidate this proceeding with several other cases pending before the PUCO, including, but not limited to, its Electric Base Rate Case. Additionally, on April 13, 2018, Duke Energy Ohio, along with certain intervenors, filed a Stipulation and Recommendation (Stipulation) with the PUCO resolving certain issues in this proceeding. The term of the ESP would be from June 1, 2018, to May 31, 2025, and included continuation of market-based customer rates through competitive procurement processes for generation, continuation and expansion of existing rider mechanisms and proposed new rider mechanisms relating to regulatory mandates, costs incurred to enhance the customer experience and transform the grid and a service reliability rider for vegetation management. The Stipulation established a regulatory model for the next seven years via the approval of the ESP and continued the current model for procuring supply for non-shopping customers, including recovery mechanisms. On December 19, 2018, the PUCO approved the Stipulation without material modification. Several parties filed applications for rehearing. On February 6, 2019, the PUCO granted the parties rehearing. The PUCO issued its Second Entry on Rehearing on July 17, 2019, upholding its December 19, 2018 order and denying all assignments of error raised by the non-stipulating parties. The parties have the ability to appeal to the Ohio Supreme Court within 60 days of the July entry. Duke Energy Ohio cannot predict the outcome of this matter.
Electric Base Rate Case
Duke Energy Ohio filed with the PUCO an electric distribution base rate case application and supporting testimony in March 2017. Duke Energy Ohio requested an estimated annual increase of approximately $15 million and a return on equity of 10.4 percent. The application also included requests to continue certain current riders and establish new riders. On September 26, 2017, the PUCO staff filed a report recommending a revenue decrease between approximately $18 million and $29 million and a return on equity between 9.22 percent and 10.24 percent. On April 13, 2018, Duke Energy Ohio filed a Motion to consolidate this proceeding with several other cases pending before the PUCO. On April 13, 2018, Duke Energy Ohio, along with certain intervenors, filed the Stipulation with the PUCO resolving numerous issues including those in this base rate proceeding. Major components of the Stipulation related to the base distribution rate case included a $19 million decrease in annual base distribution revenue with a return on equity unchanged from the current rate of 9.84 percent based upon a capital structure of 50.75 percent equity and 49.25 percent debt. Upon approval of new rates, Duke Energy Ohio's rider for recovering its initial SmartGrid implementation ended as these costs would be recovered through base rates. The Stipulation also renewed 14 existing riders, some of which were included in the company's ESP, and added two new riders including the Enhanced Service Reliability Rider to recover vegetation management costs not included in base rates, up to $10 million per year (operation and maintenance only) and the PowerForward Rider to recover costs incurred to enhance the customer experience and further transform the grid (operation and maintenance and capital). In addition to the changes in revenue attributable to the Stipulation, Duke Energy Ohio’s capital-related riders, including the Distribution Capital Investments Rider, began to reflect the lower federal income tax rate associated with the Tax Act with updates to customers’ bills beginning April 1, 2018. This change reduced electric revenue by approximately $20 million on an annualized basis. On December 19, 2018, the PUCO approved the Stipulation without material modification. New base rates were implemented effective January 2, 2019. Several parties filed applications for rehearing. On February 6, 2019, the PUCO granted the parties rehearing. The PUCO issued its Second Entry on Rehearing on July 17, 2019, upholding its December 19, 2018 order and denying all assignments of error raised by the non-stipulating parties. The parties have the ability to appeal to the Ohio Supreme Court within 60 days of the July entry. Duke Energy Ohio cannot predict the outcome of this matter.
Ohio Valley Electric Corporation
On March 31, 2017, Duke Energy Ohio filed for approval to adjust its existing price stabilization rider (Rider PSR) to pass through net costs related to its contractual entitlement to capacity and energy from the generating assets owned by OVEC. Duke Energy Ohio sought deferral authority for net costs incurred from April 1, 2017, until the new rates under Rider PSR were put into effect. On April 13, 2018, Duke Energy Ohio filed a Motion to consolidate this proceeding with several other cases currently pending before the PUCO. Also, on April 13, 2018, Duke Energy Ohio, along with certain intervenors, filed a Stipulation with the PUCO resolving numerous issues including those related to Rider PSR. The Stipulation activated Rider PSR for recovery of net costs incurred from January 1, 2018, through May 2025. On December 19, 2018, the PUCO approved the Stipulation without material modification. The PSR rider became effective April 1, 2019. Several parties filed applications for rehearing. On February 6, 2019, the PUCO granted the parties rehearing. The PUCO issued its Second Entry on Rehearing on July 17, 2019, upholding its December 19, 2018 order and denying all assignments of error raised by the non-stipulating parties. The parties have the ability to appeal to the Ohio Supreme Court within 60 days of the July entry. Duke Energy Ohio cannot predict the outcome of this matter.

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FINANCIAL STATEMENTSREGULATORY MATTERS


On July 23, 2019, an Ohio bill was signed into law that will be effective January 1, 2020. Among other things, the bill allows for recovery of prudently incurred costs, net of any revenues, for Ohio Investor-owned utilities that are participants under the OVEC power agreement. The recovery shall be through a non-bypassable rider that is to replace any existing recovery mechanism approved by the PUCO and will remain in place through 2030. The amounts recoverable from customers will be subject to an annual cap, with incremental costs that exceed such cap eligible for deferral and recovery subject to review. See Note 13 for additional discussion of Duke Energy Ohio's ownership interest in OVEC.
Tax Act – Ohio
On July 25, 2018, Duke Energy Ohio filed an application to establish a new rider to implement the benefits of the Tax Act for electric distribution customers. Duke Energy Ohio requested commission approval to implement the rider effective October 1, 2018, as a credit to all distribution customers based upon a percent reduction to Duke Energy Ohio’s distribution rates. The new rider will flow through to customers the benefit of the lower statutory federal tax rate from 35 to 21 percent since January 1, 2018, all future benefits of the lower tax rates and a full refund of deferred income taxes collected at the higher tax rates in prior years. Deferred income taxes subject to normalization rules will be refunded consistent with federal law and deferred income taxes not subject to normalization rules will be refunded over a 10-year period. Duke Energy Ohio's transmission rates reflect lower federal income tax but guidance from FERC on amortization of both protected and unprotected transmission-related EDITs is still pending. On October 24, 2018, the PUCO issued a Finding and Order that, among other things, directed all utilities over which the commission has rate-making authority to file an application to pass the benefits of the Tax Act to customers by January 1, 2019, unless otherwise exempted or directed by the PUCO. Duke Energy Ohio's July 25, 2018, filing for electric distribution operations is consistent with the commission's October 24, 2018, Finding and Order and no further action is needed. On February 20, 2019, the PUCO approved the application without material modification. Rates became effective March 1, 2019.
On December 21, 2018, Duke Energy Ohio filed an application to change its base rates and establish a new rider to implement the benefits of the Tax Act for natural gas customers. Duke Energy Ohio requested commission approval to implement the changes and rider effective April 1, 2019. The new rider will flow through to customers the benefit of the lower statutory federal tax rate from 35 to 21 percent since January 1, 2018, all future benefits of the lower tax rates and a full refund of deferred income taxes collected at the higher tax rates in prior years. Deferred income taxes subject to normalization rules will be refunded consistent with federal law and deferred income taxes not subject to normalization rules will be refunded over a 10-year period. The PUCO established a procedural schedule and testimony was filed on July 31, 2019. An order is expected before the fourth quarter of 2018 butevidentiary hearing will take place on August 7, 2019. Duke Energy Ohio cannot predict the outcome of this matter.
Energy Efficiency Cost Recovery
On March 28, 2014, Duke Energy Ohio filed an application for recovery of program costs, lost distribution revenue and performance incentives related to its energy efficiency and peak demand reduction programs. These programs are undertaken to comply with environmental mandates set forth in Ohio law. The PUCO approved Duke Energy Ohio’s application but found that Duke Energy Ohio was not permitted to use banked energy savings from previous years in order to calculate the amount of allowed incentive. This conclusion represented a change to the cost recovery mechanism that had been agreed upon by intervenors and approved by the PUCO in previous cases. The PUCO granted the applications for rehearing filed by Duke Energy Ohio and an intervenor. On January 6, 2016, Duke Energy Ohio and the PUCO Staff entered into a stipulation, pending the PUCO's approval, to resolve issues related to performance incentives and the PUCO Staff audit of 2013 costs, among other issues. In December 2015, based upon the stipulation, Duke Energy Ohio re-established approximately $20 million of the revenues that had been previously reversed. On October 26, 2016, the PUCO issued an order approving the stipulation without modification. In December 2016, the PUCO granted the intervenors request for rehearing for the purpose of further review. Duke Energy Ohio cannot predictOn April 10, 2019, the outcome of this matter.PUCO issued an Entry on Rehearing denying the rehearing applications.
On June 15, 2016, Duke Energy Ohio filed an application for approval of a three-year energy efficiency and peak demand reduction portfolio of programs. A stipulation and modified stipulation were filed on December 22, 2016, and January 27, 2017, respectively. Under the terms of the stipulations, which included support for deferral authority of all costs and a cap on shared savings incentives, Duke Energy Ohio has offered its energy efficiency and peak demand reduction programs throughout 2017. On February 3, 2017, Duke Energy Ohio filed for deferral authority of its costs incurred in 2017 in respect of its proposed energy efficiency and peak demand reduction portfolio. On September 27, 2017, the PUCO issued an order approving a modified stipulation. The modifications impose an annual cap of approximately $38 million on program costs and shared savings incentives combined, but allowed for Duke Energy Ohio to file for a waiver of costs in excess of the cap in 2017. The PUCO approved the waiver request for 2017 up to a total cost of $56 million. On November 21, 2017, the PUCO granted Duke Energy Ohio's and intervenor's applications for rehearing of the September 27, 2017, order. On January 10, 2018, the PUCO denied the Ohio Consumers' Counsel’s application for rehearing of the PUCO order granting Duke Energy Ohio's waiver request.request; however, a decision on Duke Energy Ohio's application for rehearing remains pending. Duke Energy Ohio cannot predict the outcome of this matter.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





2014 Electric Security Plan
In April 2015,On May 30, 2018, the PUCO modified and approved an extension of Duke Energy Ohio's proposedOhio’s then-current ESP, with a three-year termincluding all terms and conditions thereof, excluding an effective dateextension of June 1, 2015. The PUCO approved a competitive procurement process for SSO load, a distribution capital investment rider and a tracking mechanism for incremental distribution expenses caused by major storms. The PUCO also approved a placeholder tariff for a price stabilization rider, but denied Duke Energy Ohio's specific request to include Duke Energy Ohio's entitlement to generation from OVEC in the rider at this time; however, the order allows Duke Energy Ohio to submit additional information to request recovery in the future. On May 4, 2015, Duke Energy Ohio filed an application forOhio’s Rider DCI. Following rehearing, requesting the PUCO to modify or amend certain aspects of the order. On May 28, 2015,on July 25, 2018, the PUCO granted all applicationsthe request and allowed a continuing cap on recovery under Rider DCI. The orders were upheld on rehearing requested by OMA and OCC. The time period for parties to file for rehearing filed in the case for future consideration. On March 21,or appeal has expired.
In 2018, the PUCO issued an order denying Duke Energy Ohio's issues on rehearing. On April 20, 2018, Duke Energy OhioOMA and OCC filed a second application for rehearing based upon the Commission’s March 21, 2018, Order. On May 16, 2018, the commission issued its third Entry on Rehearing granting in part, and denying in part, Duke Energy Ohio’s rehearing request. On May 21, 2018, the Ohio Manufacturing Association (OMA) filed a notice of appealseparate appeals of PUCO's approval of Duke Energy Ohio’s ESP with the Ohio Supreme Court, challenging PUCO's approval of Duke Energy Ohio’s Price Stability Rider as a placeholder and its Distribution Capital Investment Rider (DCI)DCI to recover incremental revenue requirement for distribution capital since Duke Energy Ohio’s last base rate case. On July 16, 2018,The Ohio Supreme Court issued an order on March 13, 2019, for the Officeappellants to show cause why the appeals should not be dismissed as moot in light of Consumers' Counsel filed its own appealthe commission’s approval of Duke Energy Ohio’s ESP withcurrent ESP. The OCC and OMA made the requested filings on March 20, 2019, and Duke Energy Ohio filed its response on March 27, 2019. Subsequent to OCC and OMA making the requested filings, the Ohio Supreme Court raising similar issues to that ofdismissed the OMA. Duke Energy Ohio cannot predict the outcome of this matter.appeals as moot on May 8, 2019.

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FINANCIAL STATEMENTSREGULATORY MATTERS


Natural Gas Pipeline Extension
Duke Energy Ohio is proposing to install a new natural gas pipeline (the Central Corridor Project) in its Ohio service territory to increase system reliability and enable the retirement of older infrastructure. TheDuke Energy Ohio currently estimates the pipeline is expecteddevelopment costs and construction activities will range from $163 million to cost approximately $112$245 million excluding AFUDC.in direct costs (excluding overheads and AFUDC). On January 20, 2017, Duke Energy Ohio filed an amended application with the Ohio Power Siting Board (OPSB) for approval of one of two proposed routes. A public hearing was held on June 15, 2017, and an adjudicatory hearing was scheduled to begin September 11, 2017. On August 24, 2017, an administrative law judge (ALJ) granted a request made by Duke Energy Ohio to delay the procedural schedule while it works through various issues related to the pipeline route. In April 2018, Duke Energy Ohio filed a motion with OPSB to establish a procedural schedule and filed supplemental information supporting its application. On December 18, 2018, the OPSB established a procedural schedule that included a local public hearing on March 21, 2019. An evidentiary hearing began on April 9, 2019, and concluded on April 11, 2019. Briefs were filed on May 13, 2019, and reply briefs were filed on June 10, 2019. If approved, construction of the pipeline extension is expected to be completed before the 2020/20212021/2022 winter season. Duke Energy Ohio expects a decision by the end of 2019. Duke Energy Ohio cannot predict the outcome of this matter.
2012 Natural Gas Rate Case/MGP Cost Recovery
As part of its 2012 natural gas base rate case, Duke Energy Ohio has approval to defer and recover costs related to environmental remediation at two sites (East End and West End) that housed former MGP operations. Duke Energy Ohio has made annual applications for recovery of these deferred costs. Duke Energy Ohio is currently recovering approximately $55 million in environmental remediation costs between 2009 through 2012 through a separate rider, Rider MGP. Duke Energy Ohio has made annual applications with the PUCO to recover its incremental remediation costs consistent with the PUCO’s directive in Duke Energy Ohio’s 2012 natural gas rate case. To date, the PUCO has not ruled on Duke Energy Ohio’s annual applications for the calendar years 2013 through 2017. On September 28, 2018, the staff of the PUCO issued a report recommending a disallowance of approximately $12 million of the $26 million in MGP remediation costs incurred between 2013 through 2017 that staff believes are not eligible for recovery. Staff interprets the PUCO’s 2012 Order granting Duke Energy Ohio recovery of MGP remediation as limiting the recovery to work directly on the East End and West End sites. On October 30, 2018, Duke Energy Ohio filed reply comments objecting to the staff’s recommendations and explaining, among other things, the obligation Duke Energy Ohio has under Ohio law to remediate all areas impacted by the former MGPs and not just physical property that housed the former plants and equipment. To date, the PUCO has not issued a procedural schedule and has not ruled on Duke Energy Ohio’s applications. On March 29, 2019, Duke Energy Ohio filed its annual application to recover incremental remediation expense for the calendar year 2018 seeking recovery of approximately $20 million in remediation costs. On July 12, 2019, the staff recommended a disallowance of approximately $11 million for work that staff believes occurred in areas not authorized for recovery. Duke Energy Ohio cannot predict the outcome of this matter.
The 2012 PUCO order also contained conditional deadlines for completing the MGP environmental investigation and remediation costs at the MGP sites. Subsequent to the order, the deadline was extended to December 31, 2019. On May 10, 2019, Duke Energy Ohio filed an application requesting a continuation of its existing deferral authority for MGP remediation and investigation that must occur after December 31, 2019. Duke Energy Ohio cannot predict the outcome of this matter.
Duke Energy Kentucky ElectricNatural Gas Base Rate Case
On September 1, 2017,August 31, 2018, Duke Energy Kentucky filed a rate casean application with the KPSC requesting an increase in electricnatural gas base rates of approximately $49$11 million, which represents an approximate 1511.1 percent average increase onacross all customer classes. The increase was net of approximately $5 million in annual savings as a result of the average customer bill. Subsequent to the filing,Tax Act. The drivers for this case are capital invested since Duke Energy Kentucky’s last rate case in 2009. Duke Energy Kentucky adjustedalso sought implementation of a Weather Normalization Adjustment Mechanism, amortization of regulatory assets and to implement the requested amount to $30.1 million, in part to reflect the benefitsimpacts of the Tax Act, representingprospectively. On January 30, 2019, Duke Energy Kentucky entered into a settlement agreement with the Attorney General of Kentucky, the only intervenor in the case. The settlement provided for an approximate 9 percent increase on the average customer bill. The rate increase is driven by increased investment in utility plant, increased operations and maintenance expenses, and recovery of regulatory assets. The application also includes requests to implement an Environmental Surcharge Mechanism to recover environmental costs not recovered in base rates, to establish a Distribution Capital Investment Rider to recover incremental costs of specific programs, to establish a FERC Transmission Cost Reconciliation Rider to recover escalating transmission costs and to modify existing Profit Sharing Mechanism to increase customers' share of proceeds from the benefits of owning generation and to mitigate shareholder risks associated with that generation. An evidentiary hearing concluded on March 8, 2018, and the KPSC issued an order on April 13, 2018. Major components of the Order include approval of an $8.4$7 million increase in natural gas base rates withrevenue, a return on equity at 9.725of 9.7 percent based upon a capital structure of 49 percent equity on a total allocable capitalization of approximately $650 million. The Order approved the Environmental Surcharge Mechanism Rider to begin recovery in June 2018 of capital-related environmental costs, including costs related to ash and ash disposal, and environmental operation and maintenance expenses formerly recovered in base rates, including expenses for environmental reagents and emission allowances. The incremental revenue from this rider will be approximately $13 million on an annualized basis. The order settles all issues associated with the Tax Act as it relates to the electric business by lowering the income tax componentapproval of the revenue requirement and refunding protected excess deferred income taxes (EDIT) under allowable normalization rules and unprotected EDIT over 10 years.proposed Weather Normalization Mechanism. A hearing was held on February 5, 2019. The commission issued its Order denied requests to implement riders for certain transmission costs and distribution capital investments. approving the settlement without material modification on March 27, 2019. Revised customer rates were effective April 1, 2019.
Duke Energy Kentucky implemented new base rates on MayElectric Base Rate Case
On August 1, 2018. On May 3, 2018,2019, Duke Energy Kentucky filed an application for rehearing on certain aspects of the order; on May 23, 2018,a notice with the KPSC grantedof its intent to file a rehearing. Duke Energy Kentucky cannot predictgeneral electric rate case application no earlier than 30 days from the outcome of this matter.notice submittal date.
Duke Energy Indiana
2019 Indiana Rate Case
On July 2, 2019, Duke Energy Indiana filed a general rate case with the IURC, its first general rate case in Indiana in 16 years, for a rate increase for retail customers of approximately $395 million, which represents an approximate 15 percent increase in retail revenues. The rate increase is driven by strategic investments to generate cleaner electricity, improve reliability and serve a growing customer base. The request is premised upon a Duke Energy Indiana rate base of $10.2 billion as of December 31, 2018, and adjusted for projected changes through December 31, 2020. Hearings are expected to commence in early 2020, with rates to be effective by mid-2020. Duke Energy Indiana cannot predict the outcome of this matter.

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FINANCIAL STATEMENTSREGULATORY MATTERS


FERC Transmission Return on Equity Complaint
Customer groups have filed with the FERC complaints against MISO and its transmission-owning members, including Duke Energy Indiana, alleging, among other things, that the current base rate of return on equity earned by MISO transmission owners of 12.38 percent is unjust and unreasonable. The complaints claim, among other things, that the current base rate of return on equity earned by MISO transmission owners should be reduced to 8.67 percent. On January 5, 2015, the FERC issued an order accepting the MISO transmission owners' adder of 0.50 percent to the base rate of return on equity based on participation in an RTO subject to it being applied to a return on equity that is shown to be just and reasonable in the pending return on equity complaints. On December 22, 2015, the presiding FERC ALJ in the first complaint issued an Initial Decision in which the base rate of return on equity was set at 10.32 percent. On September 28, 2016, the Initial Decision in the first complaint was affirmed by FERC, but is subject to rehearing requests. On June 30, 2016, the presiding FERC ALJ in the second complaint issued an Initial Decision setting the base rate of return on equity at 9.70 percent. The Initial Decision in the second complaint is pending FERC review. On April 14, 2017, the U.S.D.C. Circuit Court, of Appeals for the District of Columbia Circuit, in Emera Maine v. FERC, reversed and remanded certain aspects of the methodology employed by FERC to establish rates of return on equity. This decision may affectOn October 16, 2018, FERC issued an order in response to the outcome ofEmera remand proceeding proposing a new method for determining whether an existing return on equity is unjust and unreasonable, and a new process for determining a just and reasonable return on equity. On November 14, 2018, FERC directed parties to the MISO complaints to file briefs on how the new process for determining return on equity proposed in the Emera proceeding should be applied to the complaints against Duke Energy Indiana.involving the MISO transmission owners’ return on equity. Initial briefs were filed on February 13, 2019, and reply briefs were filed April 10, 2019. Duke Energy Indiana currently believes these matters will not have a material impact on its results of operations, cash flows and financial position.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Edwardsport Integrated Gasification Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Benton County Wind Farm DisputeCycle Plant
On December 16, 2013, Benton County Wind Farm LLC (BCWF) filed a lawsuit against Duke Energy Indiana seeking damages for past generation losses alleging Duke Energy Indiana violated its obligations under a 2006 PPA by refusing to offer electricity to the market at negative prices. Damage claims continue to increase during times that BCWF is not dispatched. Under 2013 revised MISO market rules, Duke Energy Indiana is required to make a price offer to MISO for the power it proposes to sell into MISO markets and MISO determines whether BCWF is dispatched. Because market prices would have been negative due to increased market participation, Duke Energy Indiana determined it would not bid at negative prices in order to balance customer needs against BCWF's need to run. BCWF contends Duke Energy Indiana must bid at the lowest negative price to ensure dispatch, while Duke Energy Indiana contends it is not obligated to bid at any particular price, that it cannot ensure dispatch with any bid and that it has reasonably balanced the parties' interests. On July 6, 2015, the U.S. District Court for the Southern District of Indiana entered judgment against BCWF on all claims. BCWF appealed the decision and on December 9, 2016, the appeals court ruled in favor of BCWF. Duke Energy Indiana recorded an obligation and a regulatory asset related to the settlement amount in fourth quarter 2016. On June 30, 2017, the parties finalized a settlement agreement. Terms of the settlement included Duke Energy Indiana paying $29 million for back damages. Additionally, the parties agreed on the method by which the contract will be bid into the market in the future. The settlement amount was paid in June 2017. The IURC issued an order on September 27, 2017, approving recovery of the settlement amount through Duke Energy Indiana's fuel clause. The IURC order has been appealed to the Indiana Court of Appeals. On May 21, 2018, the Indiana Court of Appeals upheld the commission's decision. The appellants have requested rehearing at the Indiana Court of Appeals.
Tax Act
On June 27,20, 2018, Duke Energy Indiana, the Indiana Office of Utility Consumer Counselor, the IndianaDuke Industrial Group and Nucor Steel – Indiana filed testimony consistent with their Stipulationentered into a settlement agreement to resolve IGCC ratemaking issues for calendar years 2018 and Settlement Agreement (Settlement Agreement)2019. The agreement will remain in the federal tax act proceeding with the IURC. The Settlement Agreement outlines howeffect until new rates are established in Duke Energy Indiana will implement the impacts of the Tax Act. Material components of the Settlement Agreement are as follows:
Riders to reflect the change in the statutory federal taxIndiana's next base rate from 35 percent to 21 percent as they arecase, which was filed in 2018;
Baseon July 2, 2019, with rates to reflect the changebe effective in the statutory federal tax rate from 35 percent to 21 percent upon IURC approval, but no later than September 1, 2018;
Duke Energy Indiana to continue to defer protected federal excess deferred income taxes (Federal EDIT) until January 1, 2020, at which time it will be returned to customers according to the Average Rate Assumption Method (ARAM) required by the Internal Revenue Service over approximately 26 years; and
Duke Energy Indiana to begin returning unprotected Federal EDIT upon IURC approval, expected by September 1, 2018, over 10 years. In order to mitigate the negative impacts to cash flow and credit metrics, the Settlement Agreement allows Duke Energy Indiana to return $7 million per year over the first five years, with a step up to $35 million per year in the following five years.
The settlement is subject to the review and approval of the IURC.mid-2020. An evidentiary hearing was held in December 2018, and on July 13, 2018. Duke Energy Indiana cannot predictJune 5, 2019, the outcome of this matter.IURC issued an Order approving the 2018 Settlement Agreement.
Piedmont
South Carolina Rate Stabilization Adjustment Filing
In June 2018, Piedmont filed with the PSCSC under the South Carolina Rate Stabilization Act its quarterly monitoring report for the 12-month period ending March 31, 2018. The filing includes a revenue deficiency calculation and tariff rates in order to permit Piedmont the opportunity to earn the rate of return on common equity established in its last general rate case. The filing also incorporates the impacts of the Tax Act by lowering the income tax component of the revenue requirement, refunding protected EDIT under allowable normalization rules, unprotected EDIT and amounts over collected from the customers from January 1, 2018, through the end of the review period for this proceeding. This filing is currently under review and audit by the South Carolina Office of Regulatory Staff. Piedmont cannot predict the outcome of this matter.
North Carolina Integrity Management Rider Filing
In May 2018,On April 30, 2019, Piedmont filed and the NCUC approved, a petition under the Integrity Management Rider (IMR)IMR mechanism to update rates, effective June 2018, based on the eligible capital investments closed to integrity and safety projects over the six-month period ending March 31, 2018,2019. The NCUC approved the petition on May 29, 2019, and the decrease in the corporate federal income tax raterates became effective JanuaryJune 1, 2018.2019. The combined effect of the update was a reductionan increase to annual revenues of approximately $5.7$9 million.
Tennessee Integrity Management Rider Filing
In November 2017,2018, Piedmont filed a petition with the TPUC under the IMR mechanism to collect an additional $3.3$3 million in annual revenues, effective January 2018,2019, based on the eligible capital investments forclosed to integrity and safety projects throughover the 12-month period ending October 31, 2017. In January 2018,2018. A hearing on the matter was held on March 11, 2019. On May 20, 2019, the TPUC approved Piedmont's IMR application as filed and revised customer rates were effective June 1, 2019.
2019 North Carolina Rate Case
On April 1, 2019, Piedmont filed an amended computationapplication with the NCUC, its first general rate case in North Carolina in six years, for a rate increase for retail customers of approximately $83 million, which represents an approximate 9 percent increase in retail revenues. The rate increase is driven by significant infrastructure upgrade investments (plant additions) since the last general rate case, offset by savings that customers will begin receiving due to federal and state tax reform. Approximately half of the plant additions being rolled into rate base are categories of plant investment not covered under the IMR mechanism, revisingwhich was originally approved as part of the proposed increase in annual revenues2013 North Carolina Rate Case. An evidentiary hearing is scheduled to approximately $0.4 million basedbegin on August 19, 2019, and a decision and revised customer rates are expected by the decrease inend of 2019. Piedmont cannot predict the corporate federal income tax rate effective January 1, 2018. A hearing onoutcome of this matter was held on April 9, 2018. In May 2018, the TPUC approved Piedmont's request as proposed for the IMR effective January 1, 2018.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





matter.
OTHER REGULATORY MATTERS
Progress Energy Merger FERC Mitigation
Since December 2014, the FERC Office of Enforcement has conducted an investigation of Duke Energy’s market power filings in its application for approval of the Progress Energy merger submitted in 2012. On June 8, 2018, the FERC issued an order approving a settlement agreement under which Duke Energy paid a penalty of $3.5 million. The FERC Office of Enforcement stated in its conclusion that Duke Energy violated FERC regulations by failing to fully and accurately describe certain specific matters in its market power filings. Duke neither admitted nor denied the alleged violations.
Atlantic Coast Pipeline, LLC
On September 2, 2014, Duke Energy, Dominion Resources (Dominion), Piedmont and Southern Company Gas announced the formation of Atlantic Coast Pipeline, LLC (ACP) to build and own the proposed Atlantic Coast Pipeline (ACP pipeline), an approximately 600-mile interstate natural gas pipeline running from West Virginia to North Carolina. The ACP pipeline is designed to meet, in part, the needs identified by Duke Energy Carolinas, Duke Energy Progress and Piedmont. Dominion will buildbe responsible for building and operateoperating the ACP pipeline and holds a leading ownership percentage in ACP of 48 percent. Duke Energy owns a 47 percent interest, which is accounted for as an equity method investment through its Gas Utilities and Infrastructure segment. Southern Company Gas maintains a 5 percent interest. See Note 1213 for additional information related to Duke Energy's ownership interest. Duke Energy Carolinas, Duke Energy Progress and Piedmont, among others, will be customers of the pipeline. Purchases will be made under several 20-year supply contracts, subject to state regulatory approval.

56




FINANCIAL STATEMENTSREGULATORY MATTERS


In 2018, the FERC issued a series of Notices to Proceed, which authorized the project to begin certain construction-related activities along the pipeline route, including supply header and compressors. On May 11, 2018, and October 19, 2018, FERC issued a NoticeNotices to Proceed allowing full construction activities in specifiedall areas of West Virginia and onexcept in the Monongahela National Forest. On July 24, 2018, FERC issued a Notice to Proceed allowing full construction activities along the project route in North Carolina. A conditionalOn October 19, 2018, the conditions to effectiveness of the Virginia 401 water quality certification has been issuedwere satisfied. Immediately following receipt of the Virginia 401 certification, ACP filed a request for FERC to issue a Notice to Proceed with full construction activities in Virginia. We appreciate the professional and collaborative process by the Virginia Water Control Board,permitting agencies designed to ensure that this critical energy infrastructure project will meet the stringent environmental standards required by law and ACP continues working with the Virginia Water Control Board’s staff to fulfill the outstanding conditions. Until these conditions have been satisfied, full construction activity in Virginia is not permitted.regulation.
ACP is the subject of numerous challenges in state and federal courts and agencies, including, among others, challenges of the project’s biological opinion (BiOp) and incidental take statement (ITS), crossings of the Blue Ridge Parkway, the Appalachian Trail, and the Monongahela and George Washington National Forests, the project’s U.S. Army Corps of Engineers (USACE) 404 permit, the Virginia conditional 401 water quality certification, the project's air permit for a compressor station at Buckingham, Virginia, the FERC Environmental Impact Statement order and the FERC order approving the Certificate of Public Convenience and Necessity. Each of these challenges alleges non-compliance on the part of federal and state permitting authorities and adverse ecological consequences if the project is permitted to proceed. Since December 2018, notable developments in these challenges include a stay in December 2018 issued by the U.S. Court of Appeals for the Fourth Circuit (Fourth Circuit) and the same court's ultimate vacatur of the project's BiOp and ITS (which stay has halted most project construction activity), a Fourth Circuit decision vacating the project's permits to cross the Monongahela and George Washington National Forests and the Appalachian Trail, the Fourth Circuit's remand to USACE of ACP's Huntington District 404 verification and the Fourth Circuit’s remand to the National Park Service of the ACP’s Blue Ridge Parkway right-of-way. ACP is vigorously defending these challenges and coordinating with the federal and state authorities which are the direct parties to the challenges. The Solicitor General of the United States and ACP filed petitions for certiorari to the Supreme Court of the United States on June 25, 2019, regarding the Appalachian Trail crossing and anticipate a decision in October 2019 from the Supreme Court of the United States as to whether it will hear the case. ACP is also evaluating possible legislative remedies to this issue. On May 15, 2018,July 26, 2019, the Fourth U.S. Circuit Court of Appeals vacatedissued an order vacating ACP's BiOp and ITS, finding that the U.S. Fish and Wildlife Services’ ITSService (FWS) had reached arbitrary conclusions in issuing the vacated BiOp and ITS. In anticipation of such an order by the Fourth Circuit, ACP and the FWS commenced work in mid-May of 2019 to set the basis for a reissued BiOp and ITS. ACP continues coordinating and working with FWS and other parties in preparation for a reissuance of the BiOp and ITS.
The delays resulting from the legal challenges described above have impacted the cost and schedule for the project. As a result, project stating that the ITS failedcost estimates have increased to meet the requirements of the Endangered Species Act; on May 22, 2018, ACP informed FERC that it would not proceed with construction in any areas covered by the ITS until the issue is resolved, even though construction elsewhere will continue as scheduled; on June 11, 2018, petitioners requested a rehearing of FERC’s West Virginia Notice to Proceed; on July 5, 2018, petitioners filed a motion for injunction of all construction activity along the project route, and ACP and Fish and Wildlife Services filed responses on July 11, 2018. In response to challenges of the certification of ACP’s reliance on USACE Nation Wide Permit 12 (which challenges allege that ACP cannot meet the requirements of the permit in respect of certain water crossings in West Virginia), on July 27, 2018, ACP voluntarily requested an administrative suspension of the USACE authorization in the Huntington District for water crossings in West Virginia to ensure adequate review by USACE of ACP’s crossing methodology. This request for a stay followed a July 20, 2018, motion for injunction by certain project opponents.
ACP's project manager estimates the project's pipeline development costs will range from $6.0$7.0 billion to $6.5$7.8 billion, excluding financing costs. Project construction activities, schedule and final costs are still subjectACP expects to uncertaintyachieve a late 2020 in-service date for key segments of the project, while it expects the remainder to extend into 2021. Abnormal weather, work delays (including delays due to potential additional permitting delays, construction productivityjudicial or regulatory action) and other conditions and risks, which couldmay result in potential higher project costs and a potential delaycost or schedule modifications in the targeted in-service date, which is late 2019.
Sabal Trail Transmission, LLC
On May 4, 2015, Duke Energy acquired a 7.5 percent ownership interest in Sabal Trail, which is accounted for as an equity method investment, from Spectra Energy Partners, LP, a master limited partnership, formed by Enbridge Inc. (formerly Spectra Energy Corp.). Spectra Energy Partners, LP holds a 50 percent ownership interest in Sabal Trail and NextEra Energy has a 42.5 percent ownership interest. Sabal Trail is a joint venture to construct a 515-mile natural gas pipeline (Sabal Trail pipeline) to transport natural gas to Florida. Total estimated project costs are approximately $3.2 billion. The Sabal Trail pipeline traverses Alabama, Georgia and Florida. The primary customers of the Sabal Trail pipeline, Duke Energy Florida and Florida Power & Light Company (FP&L), have each contracted to buy pipeline capacity for 25-year initial terms. See Note 12 for additional information related to Duke Energy's ownership interest.
On February 3, 2016, the FERC issued an order granting the request for a CPCN to construct and operate the pipeline. The Sabal Trail pipeline received other required regulatory approvals and the Phase 1 mainline was placed in service in July 2017. On October 12, 2017, Sabal Trail filed a request with FERC to place in service a lateral line to Duke Energy Florida's Citrus County Combined Cycle Facility. This request is required to support commissioning and testing activities at the facility. On March 16, 2018, FERC approved the Citrus lateral and it was placed in service.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





On September 21, 2016, intervenors filed an appeal of FERC's CPCN orders to the U.S. Court of Appeals for the District of Columbia Circuit (D.C. Circuit Court of Appeals). On August 22, 2017, the appeals court ruled against FERC in the case for failing to include enough information on the impact of greenhouse-gas emissions carried by the pipeline, vacated the CPCN order and remanded the case to FERC. In response to the August 2017 court decision, the FERC issued a draft Supplemental Environmental Impact Statement (SEIS) on September 27, 2017. On October 6, 2017, FERC and a group of industry intervenors, including Sabal Trail and Duke Energy Florida, filed separate petitions with the D.C. Circuit Court of Appeals requesting rehearing regarding the court's decision to vacate the CPCN order. On January 31, 2018, the D.C. Circuit Court of Appeals denied the requests for rehearing. On February 2, 2018, Sabal Trail filed a request with FERC for expedited issuance of its order on remand and reissuance of the CPCN. In the alternative, the pipeline requested that FERC issue a temporary emergency CPCN to allow for continued operations. On February 5, 2018, FERC issued the final SEIS. On February 6, 2018, FERC and the intervenors in this case each filed motions for stay with the D.C. Circuit Court to stay the court's mandate. On March 7, 2018, the D.C. Circuit Court of Appeals granted FERC and Sabal Trail’s stay request. On March 14, 2018, FERC issued its final order on remand, which recertified the project. Requests for rehearing of the FERC order on remand are still pending.future.
Constitution Pipeline Company, LLC
Duke Energy owns a 24 percent ownership interest in Constitution, which is accounted for as an equity method investment. Constitution is a natural gas pipeline project slated to transport natural gas supplies from the Marcellus supply region in northern Pennsylvania to major northeastern markets. The pipeline will be constructed and operated by Williams Partners L.P., which has a 41 percent ownership share. The remaining interest is held by Cabot Oil and Gas Corporation and WGL Holdings, Inc. Before the permitting delays discussed below, Duke Energy's total anticipated contributions were approximately $229 million. As a result of the permitting delays and project uncertainty, total anticipated contributions by Duke Energy can no longer be reasonably estimated. Since April 2016, with the actions of the New York State Department of Environmental Conservation (NYSDEC), Constitution stopped construction and discontinued capitalization of future development costs until the project's uncertainty is resolved.
In December 2014, Constitution received approval from the FERC to construct and operate the proposed pipeline. However, on April 22, 2016, the NYSDEC denied Constitution’s application for a necessary water quality certification for the New York portion of the Constitution pipeline. Constitution filed a series of legal actions in the U.S. Court of Appeals for the Second Circuit (U.S. Court of Appeals) challenging the legality and appropriateness of the NYSDEC’s decision, and on August 18, 2017, the petition was deniedculminating in part and dismissed in part. In September 2017, Constitution filed a petition for a rehearing of portions of the decision unrelatedan appeal to the water quality certification, which was denied by the U.S. Court of Appeals. In January 2018, Constitution petitioned the Supreme Court of the United States, to review the U.S. Court of Appeals decision, andwhich appeal was denied on April 30, 2018, the Supreme Court denied Constitution's petition.2018. In addition, in October 2017, Constitution filed a petition for declaratory order requesting FERC to find that the NYSDEC waived its rights to issue a Section 401 water quality certification by not acting on Constitution's application within a reasonable period of time as required by statute. Thisstatute, which petition was baseddenied on precedent established by another pipeline’s successful petition with FERC following a District of ColumbiaJanuary 11, 2018.
On January 25, 2019, the D.C. Circuit Court ruling. On January 11,rendered a decision in Hoopa Valley Tribe v. FERC that withdrawal and resubmission of an application for a Section 401 water quality certification constituted a waiver by the relevant state agency when such withdrawals and resubmissions were intended to extend the one-year limit on accepting or rejecting such an application. As Constitution had made similar arguments in its 2018 petition to FERC denied Constitution's petition. In February 2018,for a declaratory order, on April 1, 2019, Constitution filed a rehearing requestnew petition for declaratory order requesting FERC find a waiver on the part of NYSDEC in accordance with the D.C. Circuit Court’s newly established precedent. On May 1, 2019, Constitution filed its response to supplemental pleadings filed by NYSDEC and others in this proceeding. A FERC of its finding that the NYSDEC did not waive the Section 401 certification requirement. On July 19, 2018, FERC denied Constitution's rehearing request. response is expected later this year.
Constitution is currently unable to approximate an in-service date for the project due to the NYSDEC's denial of the water quality certification. The Constitution partners remain committed to the project and are evaluating next steps to move the project forward. On June 25, 2018, Constitution filed with FERC a Request for Extension of Time until December 2, 2020, for construction of the project. Duke Energy cannot predict the outcomeOn November 5, 2018, FERC issued an Order Granting Extension of this matter.Time.
During the six months ended June 30, 2018, Duke Energy recorded an other-than-temporary impairment (OTTI)OTTI of $55 million within Equity in earnings of unconsolidated affiliates on Duke Energy's Condensed Consolidated Statements of Operations.Income. The charge representsrepresented the excess carrying value over the estimated fair value of the project, which was based on a Level 3 Fair Value measurement that was determined from the income approach using discounted cash flows. The impairment was primarily due to the recent actions taken by the courts and regulators to uphold the NYSDEC's denial of the certification and uncertainty associated with the remaining legal and regulatory challenges.
See Note 1213 for additional information related to ownership interest and carrying value of the investment.

57




FINANCIAL STATEMENTSREGULATORY MATTERS


Potential Coal Plant Retirements
The Subsidiary Registrants periodically file Integrated Resource Plans (IRP)IRPs with their state regulatory commissions. The IRPs provide a view of forecasted energy needs over a long term (10 to 20 years) and options being considered to meet those needs. Recent IRPs filed by the Subsidiary Registrants included planning assumptions to potentially retire certain coal-fired generating facilities in FloridaNorth Carolina and Indiana earlier than their current estimated useful lives. Duke Energy continues to evaluate the potential need to retire these coal-fired generating facilities earlier than the current estimated useful lives primarily because facilities doand plans to seek regulatory recovery for amounts that would not have the requisite emission control equipment to meet EPA regulations recently approved or proposed.be otherwise recovered when any of these assets are retired.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





The table below contains the net carrying value of generating facilities planned for retirement or included in recent IRPs as evaluated for potential retirement due to a lack of requisite environmental control equipment.retirement. Dollar amounts in the table below are included in Net property, plant and equipment on the Condensed Consolidated Balance Sheets as of June 30, 2018,2019, and exclude capitalized asset retirement costs.
  Remaining Net
  Remaining Net
Capacity
 Book Value
Capacity
 Book Value
(in MW)
 (in millions)
(in MW)
 (in millions)
Duke Energy Carolinas      
Allen Steam Station Units 1-3(a)
585
 $160
585
 156
Progress Energy and Duke Energy Florida   
Crystal River Units 1 and 2(b)
873
 102
Duke Energy Indiana      
Gallagher Units 2 and 4(c)
280
 125
Gallagher Units 2 and 4(b)
280
 118
Gibson Units 1-5(c)
3,132
 1,960
Cayuga Units 1-2(c)
1,005
 983
Total Duke Energy1,738
 $387
5,002
 $3,217
(a)Duke Energy Carolinas will retire Allen Steam Station Units 1 through 3 by December 31, 2024, as part of the resolution of a lawsuit involving alleged New Source Review violations.
(b)Duke Energy Florida expects to retire these coal units by the end of 2018 to comply with environmental regulations.
(c)Duke Energy Indiana committed to either retire or stop burning coal at Gallagher Units 2 and 4 by December 31, 2022, as part of the 2016 settlement of Edwardsport IGCC matters.
(c)On July 1, 2019, Duke Energy Indiana filed its 2018 IRP with the IURC. The 2018 IRP included scenarios evaluating the potential retirement of coal-fired generating units at Gibson and Cayuga. The rate case filed July 2, 2019, includes proposed depreciation rates reflecting retirement dates from 2026 to 2038.
Refer to the "Western Carolinas Modernization Plan" discussion above for details of Duke Energy Progress' planned retirements.
4. COMMITMENTS AND CONTINGENCIES
ENVIRONMENTAL
The Duke Energy Registrants are subject to federal, state and local regulations regarding air and water quality, hazardous and solid waste disposal, coal ash and other environmental matters. These regulations can be changed from time to time, imposing new obligations on the Duke Energy Registrants. The following environmental matters impact all of the Duke Energy Registrants.
Remediation Activities
In addition to asset retirement obligations (ARO)AROs recorded as a result of various environmental regulations, the Duke Energy Registrants are responsible for environmental remediation at various sites. These include certain properties that are part of ongoing operations and sites formerly owned or used by Duke Energy entities. These sites are in various stages of investigation, remediation and monitoring. Managed in conjunction with relevant federal, state and local agencies, remediation activities vary based upon site conditions and location, remediation requirements, complexity and sharing of responsibility. If remediation activities involve joint and several liability provisions, strict liability, or cost recovery or contribution actions, the Duke Energy Registrants could potentially be held responsible for environmental impacts caused by other potentially responsible parties and may also benefit from insurance policies or contractual indemnities that cover some or all cleanup costs. Liabilities are recorded when losses become probable and are reasonably estimable. The total costs that may be incurred cannot be estimated because the extent of environmental impact, allocation among potentially responsible parties, remediation alternatives and/or regulatory decisions have not yet been determined at all sites. Additional costs associated with remediation activities are likely to be incurred in the future and could be significant. Costs are typically expensed as Operation, maintenance and other on the Condensed Consolidated Statements of Operations unless regulatory recovery of the costs is deemed probable.


PART I
58


DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





FINANCIAL STATEMENTSCOMMITMENTS AND CONTINGENCIES


The following tables contain information regarding reserves for probable and estimable costs related to the various environmental sites. These reserves are recorded in Accounts Payable within Current Liabilities and Other within Other Noncurrent Liabilities on the Condensed Consolidated Balance Sheets.
 Six Months Ended June 30, 2018
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Balance at beginning of period$81
 $10
 $15
 $3
 $12
 $47
 $5
 $2
Provisions/adjustments1
 2
 2
 2
 (1) (3) 1
 
Cash reductions(14) (1) (2) (1) (1) (9) (1) 
Balance at end of period$68
 $11
 $15
 $4
 $10
 $35
 $5
 $2
 Six Months Ended June 30, 2017
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Balance at beginning of period$98
 $10
 $18
 $3
 $14
 $59
 $10
 $1
Provisions/adjustments
 1
 
 
 1
 (2) 
 
Cash reductions(8) (1) (2) 
 (2) (4) (1) 
Balance at end of period$90
 $10
 $16
 $3
 $13
 $53
 $9
 $1
 Six Months Ended June 30, 2019
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Balance at beginning of period$77
 $11
 $11
 $4
 $6
 $48
 $5
 $2
Provisions/adjustments9
 4
 3
 2
 1
 2
 
 
Cash reductions(22) (3) (1) (1) 
 (18) 
 
Balance at end of period$64
 $12
 $13
 $5
 $7
 $32
 $5
 $2
 Six Months Ended June 30, 2018
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Balance at beginning of period$81
 $10
 $15
 $3
 $12
 $47
 $5
 $2
Provisions/adjustments1
 2
 2
 2
 (1) (3) 1
 
Cash reductions(14) (1) (2) (1) (1) (9) (1) 
Balance at end of period$68
 $11
 $15
 $4
 $10
 $35
 $5
 $2

Additional losses in excess of recorded reserves that could be incurred for the stages of investigation, remediation and monitoring for environmental sites that have been evaluated at this time are not material except as presented in the table below.
(in millions) 
Duke Energy$51
Duke Energy Carolinas12
Duke Energy Ohio29
Piedmont2
(in millions) 
Duke Energy$55
Duke Energy Carolinas16
Duke Energy Ohio30
Piedmont2
LITIGATION
Duke Energy Carolinas and Duke Energy Progress
NCDEQ Closure Litigation
The Coal Ash Act requires CCR surface impoundments in North Carolina to be closed, with the closure method and timing based on a risk ranking classification determined by legislation or state regulators. The NCDEQ previously classified the impoundments at Allen, Belews Creek, Rogers, Marshall, Mayo and Roxboro as low risk and Duke Energy expected to close those sites through a combination of a cap system and a groundwater monitoring system. However, on April 1, 2019, NCDEQ issued a closure determination (NCDEQ's April 1 Order) requiring Duke Energy Carolinas and Duke Energy Progress to excavate all remaining coal ash impoundments at these facilities. On April 26, 2019, Duke Energy Carolinas and Duke Energy Progress filed Petitions for Contested Case Hearings in the Office of Administrative Hearings to challenge NCDEQ's April 1 Order. On May 9, 2019, NCDEQ issued a supplemental order requiring that closure plans be submitted on December 31, 2019, but providing that the corrective action plans are not due until March 31, 2020. Duke Energy Carolinas and Duke Energy Progress filed amended petitions on May 24, 2019, incorporating the May 9, 2019 order.
On June 14, 2019, NCDEQ filed a motion to dismiss several claims in Duke Energy Carolinas' and Duke Energy Progress' appeals. On August 2, 2019, the court entered an order granting NCDEQ's motion to dismiss several of the claims. The lawsuit will proceed on the remaining issues, including whether the NCDEQ's decision was arbitrary and capricious. Duke Energy Carolinas and Duke Energy Progress cannot predict the outcome of this matter.
Coal Ash Insurance Coverage Litigation
In March 2017, Duke Energy Carolinas and Duke Energy Progress filed a civil action in North Carolina Superior Court against various insurance providers. The lawsuit seeks payment for coal ash-related liabilities covered by third-party liability insurance policies. The insurance policies were issued between 1971 and 1986 and provide third-party liability insurance for property damage. The civil action seeks damages for breach of contract and indemnification for costs arising from the Coal Ash Act and the EPA CCR rule at 15 coal-fired plants in North Carolina and South Carolina. On May 14, 2019, the court granted an extension of stay, until September 15, 2019, to allow the parties to discuss potential resolution. If the case is not fully resolved at that time, litigation will resume. The parties are engaged in discovery.trial is now scheduled for February 2021. Duke Energy Carolinas and Duke Energy Progress cannot predict the outcome of this matter.

59




FINANCIAL STATEMENTSCOMMITMENTS AND CONTINGENCIES


NCDEQ State Enforcement Actions
In the first quarter of 2013, the Southern Environmental Law Center (SELC)SELC sent notices of intent to sue Duke Energy Carolinas and Duke Energy Progress related to alleged Clean Water Act (CWA)CWA violations from coal ash basins at two of their coal-fired power plants in North Carolina. The NCDEQ filed enforcement actions against Duke Energy Carolinas and Duke Energy Progress alleging violations of water discharge permits and North Carolina groundwater standards. The cases have been consolidated and are being heard before a single judge in the North Carolina Superior Court.
On August 16, 2013, the NCDEQ filed an enforcement action against Duke Energy Carolinas and Duke Energy Progress related to their remaining plants in North Carolina, alleging violations of the CWA and violations of the North Carolina groundwater standards. Both of these cases have been assigned to the judge handling the enforcement actions discussed above. SELC is representing several environmental groups who have been permitted to intervene in these cases.
The court issued orders in 2016 granting Motions for Partial Summary Judgment for seven of the 14 North Carolina plants named in the enforcement actions. On February 13, 2017, the court issued an order denying motions for partial summary judgment brought by both the environmental groups and Duke Energy Carolinas and Duke Energy Progress for the remaining seven plants. On March 15, 2017, Duke Energy Carolinas and Duke Energy Progress filed a Notice of Appeal with the North Carolina Court of Appeals to challenge the trial court’s order. The parties were unable to reach an agreement at mediation in April 2017. The parties2017 and submitted briefs to the trial court on remaining issues to be tried and a ruling is pending.tried. On August 22, 2017,1, 2018, the Court of Appeals dismissed the appeal and the matter is proceeding before the trial court. In light of the NCDEQ's April 1 Order, on April 29, 2019, the court decided to stay any activity in the case until August 2019, at which time the court will hold another status conference. Duke Energy Carolinas and Duke Energy Progress filed a Petition for Discretionary Review, requestingcannot predict the North Carolina Supreme Court to accept the appeal. On August 24, 2017, SELC filed a motion to dismiss the appeal. On August 1, 2018, the court dismissed the appeal.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





It is not possible to predict any liability or estimate any damages Duke Energy Carolinas or Duke Energy Progress might incur in connection with these matters.outcome of this matter.
Federal Citizens Suits
On June 13, 2016, the Roanoke River Basin Association (RRBA)RRBA filed a federal citizen suit in the Middle District of North Carolina alleging unpermitted discharges to surface water and groundwater violations at the Mayo Plant. On August 19, 2016, Duke Energy Progress filed a Motion to Dismiss. On April 26, 2017, the court entered an order dismissing four of the claims in the federal citizen suit. Two claims relating to alleged violations of National Pollutant Discharge Elimination System (NPDES)NPDES permit provisions survived the motion to dismiss, and Duke Energy Progress filed its response on May 10, 2017. Duke Energy Progress and RRBA each filed motions for summary judgment on March 23, 2018. The court has not yet ruled on these motions.
On May 16, 2017, RRBA filed a federal citizen suit in the U.S. District Court for the Middle District of North Carolina, which asserts two claims relating to alleged violations of NPDES permit provisions at the Roxboro plantPlant and one claim relating to the use of nearby water bodies. Duke Energy Progress and RRBA each filed motions for summary judgment on April 17, 2018.2018, and the court has not yet ruled on these motions.
On May 8, 2018, on motion from Duke Energy Progress, the Courtcourt ordered trial in both of the above matters to be consolidated and has set a trial date for December 3, 2018.
consolidated. On June 20, 2017, RRBA filed a federal citizen suit in the U.S. District Court for the Middle District of North Carolina challenging the closure plans at the Mayo Plant under the EPA CCR Rule.April 5, 2019, Duke Energy Progress filed a motion to dismiss, which was granted bystay the court on March 30, 2018. RRBA had untilcase following the NCDEQ’s April 30, 2018, to file an appeal to the Fourth Circuit but did not do so.
1 Order. On August 2, 2017, RRBA filed a federal citizen suit in the U.S. District Court for the Middle District of North Carolina challenging the closure plans at the Roxboro Plant under the EPA CCR Rule. Duke Energy Progress filed a motion to dismiss on October 2, 2017, which was granted by2019, the court on May 29, 2018. RRBA had until June 28, 2018, to file an appeal toordered that this case is stayed and shall remain stayed pending further order from the Fourth Circuit but did not do so.court.
On December 6,5, 2017, various parties filed a federal citizen suit in the U.S. District Court for the Middle District of North Carolina for alleged violations at Duke Energy Carolinas' Belews Creek Steam Station (Belews Creek) under the CWA. Duke Energy Carolinas' answer to the complaint was filed on August 27, 2018. On October 10, 2018, Duke Energy Carolinas filed Motions to Dismiss for lack of standing, Motion for Judgment on the Pleadings and Motion to Stay Discovery. On January 9, 2019, the court entered an order denying Duke Energy Carolinas' motion to stay discovery. There has been no ruling on the other pending motions. On April 5, 2019, Duke Energy Carolinas filed a motion to dismiss on February 5, 2018.
Itstay the case following the NCDEQ’s April 1 Order. On August 2, 2019, the court ordered that this case is not possible to predict whether Duke Energy Carolinas or Duke Energy Progress will incur any liability or to estimate the damages, if any, they might incur in connection with these matters.
Groundwater Contamination Claims
Beginning in May 2015, a number of residents living in the vicinity of the North Carolina facilities with ash basins received lettersstayed and shall remain stayed pending further order from the NCDEQ advising them not to drink water from the private wells on their land tested by the NCDEQ as the samples were found to have certain substances at levels higher than the criteria set by the North Carolina Department of Health and Human Services (DHHS). Results of Comprehensive Site Assessments testing performed by Duke Energy under the Coal Ash Act have been consistent with historical data provided to state regulators over many years. The DHHS and NCDEQ sent follow-up letters on October 15, 2015, to residents near coal ash basins who had their wells tested, stating that private well samplings at a considerable distance from coal ash basins, as well as some municipal water supplies, contain similar levels of vanadium and hexavalent chromium, which led investigators to believe these constituents are naturally occurring. In March 2016, DHHS rescinded the advisories.court.
Duke Energy Carolinas and Duke Energy Progress have received formal demand letters from residents near Duke Energy Carolinas' and Duke Energy Progress' coal ash basins. The residents claim damages for nuisance and diminution in property value, among other things. The parties held three dayscannot predict the outcome of mediation discussions that ended at an impasse. On January 6, 2017, Duke Energy Carolinas and Duke Energy Progress received the plaintiffs' notice of their intent to file suits should the matter not settle. The NCDEQ preliminarily approved Duke Energy’s permanent water solution plans on January 13, 2017, and as a result shortly thereafter, Duke Energy issued a press release, providing additional details regarding the homeowner compensation package. This package consists of three components: (i) a $5,000 goodwill payment to each eligible well owner to support the transition to a new water supply, (ii) where a public water supply is available and selected by the eligible well owner, a stipend to cover 25 years of water bills and (iii) the Property Value Protection Plan. The Property Value Protection Plan is a program offered by Duke Energy designed to guarantee eligible plant neighbors the fair market value of their residential property should they decide to sell their property during the time that the plan is offered. Duke Energy Carolinas and Duke Energy Progress have recognized reserves of $10 million and $3 million, respectively.
On August 23, 2017, a class-action suit was filed in Wake County Superior Court, North Carolina, against Duke Energy Carolinas and Duke Energy Progress on behalf of certain property owners living near coal ash impoundments at Allen, Asheville, Belews Creek, Buck, Cliffside, Lee, Marshall, Mayo and Roxboro. The class is defined as those who are “well-eligible” under the Coal Ash Act or those to whom Duke Energy has promised a permanent replacement water supply and seeks declaratory and injunctive relief, along with compensatory damages. Plaintiffs allege that Duke Energy’s improper maintenance of coal ash impoundments caused harm, particularly through groundwater contamination. Despite NCDEQ’s preliminary approval, Plaintiffs contend that Duke Energy’s proposed permanent water solutions plan fails to comply with the Coal Ash Act. On September 28, 2017, Duke Energy Carolinas and Duke Energy Progress filed a Motion to Dismiss and Motion to Strike the class designation. The parties entered into a Settlement Agreement on January 24, 2018, which resulted in the dismissal of the underlying class action on January 25, 2018.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





On September 14, 2017, a complaint was filed against Duke Energy Progress in New Hanover County Superior Court by a group of homeowners residing approximately 1 mile from Duke Energy Progress' Sutton Steam Plant (Sutton). The homeowners allege that coal ash constituents have been migrating from ash impoundments at Sutton into their groundwater for decades and that in 2015, Duke Energy Progress discovered these releases of coal ash, but failed to notify any officials or neighbors and failed to take remedial action. The homeowners claim unspecified physical and mental injuries as a result of consuming their well water and seek actual damages for personal injury, medical monitoring and punitive damages. On March 6, 2018, Plaintiffs' counsel voluntarily dismissed the action without prejudice.matters.
It is not possible to estimate the maximum exposure of loss, if any, that may occur in connection with future claims that might be made by these residents.
Asbestos-related Injuries and Damages Claims
Duke Energy Carolinas has experienced numerous claims for indemnification and medical cost reimbursement related to asbestos exposure. These claims relate to damages for bodily injuries alleged to have arisen from exposure to or use of asbestos in connection with construction and maintenance activities conducted on its electric generation plants prior to 1985. As of June 30, 2018,2019, there were 120145 asserted claims for non-malignant cases with cumulative relief sought of up to $29$38 million, and 4750 asserted claims for malignant cases with cumulative relief sought of up to $12$16 million. Based on Duke Energy Carolinas’ experience, it is expected that the ultimate resolution of most of these claims likely will be less than the amount claimed.
Duke Energy Carolinas has recognized asbestos-related reserves of $466$607 million at June 30, 2018,2019, and $489$630 million at December 31, 2017.2018. These reserves are classified in Other within Other Noncurrent Liabilities and Other within Current Liabilities on the Condensed Consolidated Balance Sheets. These reserves are based upon the minimum amount of the range of lossDuke Energy Carolinas' best estimate for current and future asbestos claims through 2037,2038 and are recorded on an undiscounted basis and incorporate anticipated inflation.basis. In light of the uncertainties inherent in a longer-term forecast, management does not believe they can reasonably estimate the indemnity and medical costs that might be incurred after 20372038 related to such potential claims. It is possible Duke Energy Carolinas may incur asbestos liabilities in excess of the recorded reserves.
Duke Energy Carolinas has third-party insurance to cover certain losses related to asbestos-related injuries and damages above an aggregate self-insured retention. Duke Energy Carolinas’ cumulative payments began to exceed the self-insuranceself-insured retention in 2008. Future payments up to the policy limit will be reimbursed by the third-party insurance carrier. The insurance policy limit for potential future insurance recoveries indemnification and medical cost claim payments is $797$764 million in excess of the self-insured retention. Receivables for insurance recoveries were $585$739 million at June 30, 2018,2019, and December 31, 2017.2018. These amounts are classified in Other within Other Noncurrent Assets and Receivables within Current Assets on the Condensed Consolidated Balance Sheets. Duke Energy Carolinas is not aware of any uncertainties regarding the legal sufficiency of insurance claims. Duke Energy Carolinas believes the insurance recovery asset is probable of recovery as the insurance carrier continues to have a strong financial strength rating.

60




FINANCIAL STATEMENTSCOMMITMENTS AND CONTINGENCIES


Duke Energy Progress and Duke Energy Florida
Spent Nuclear Fuel Matters
On October 16, 2014,June 18, 2018, Duke Energy Progress and Duke Energy Florida sued the U.S. in the U.S. Court of Federal Claims.Claims for damages incurred for the period 2014 through 2018. The lawsuit claimed the Department of Energy breached a contract in failing to accept spent nuclear fuel under the Nuclear Waste Policy Act of 1982 and asserted damages for the cost of on-site storage.storage in the amount of $100 million and $203 million for Duke Energy Progress and Duke Energy Florida, asserted damages for the period January 1, 2011, through December 31, 2013, of $48 millionrespectively. Discovery is ongoing and $25 million, respectively. On November 17, 2017, the Court awarded Duke Energy Progress and Duke Energy Florida $48 million and $21 million, respectively, subjecta trial is expected to appeal. No appeals were filed and Duke Energy Progress and Duke Energy Florida recognized the recoveriesoccur in the first quarter of 2018. Claims for all periods through 2013 have been resolved. On June 22, 2018, Duke Energy Progress and Duke Energy Florida filed a complaint for damages incurred for 2014 through first quarter 2018.
Duke Energy Progress
Gypsum Supply Agreement Matter
On June 30, 2017, CertainTeed Gypsum NC, Inc. (CertainTeed) filed a declaratory judgment action against Duke Energy Progress in the North Carolina Business Court relating to a gypsum supply agreement. In its complaint, CertainTeed sought an order from the court declaring that the minimum amount of gypsum Duke Energy Progress must provide to CertainTeed under the supply agreement is 50,000 tons per month through 2029. On January 29, 2018, CertainTeed filed a request to amend its Complaint and seek a preliminary injunction requiring Duke Energy Progress to provide 50,000 tons of gypsum per month through the trial date. In advance of the hearing on the Motion for Preliminary Injunction, the parties reached an agreement under which Duke Energy Progress would deliver 50,000 tons of gypsum per month through August 2018. If the Court determines that Duke Energy Progress was not obligated to provide that amount per month, CertainTeed will reimburse Duke Energy Progress. Trial in this matter was completed on July 16, 2018, and Duke Energy Progress is awaiting a ruling. If Duke Energy Progress does not prevail, Duke Energy Progress will either have to purchase additional gypsum on the open market to fulfill its contractual obligation through 2029 or pay liquidated damages. Duke Energy Progress cannot predict the outcome of this matter.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





2020.
Duke Energy Florida
Class Action LawsuitFluor Contract Litigation
On February 22, 2016,January 29, 2019, Fluor filed a breach of contract lawsuit was filed in the U.S. District Court for the SouthernMiddle District of Florida on behalf of a putative class of Duke Energy Florida and FP&L’s customers in Florida. The suit alleges the state of Florida’s nuclear power plant cost recovery statutes (NCRS) are unconstitutional and pre-empted by federal law. Plaintiffs claim they are entitled to repayment of all money paid by customers of Duke Energy Florida and FP&L as a result of the NCRS, as well as an injunction against any future charges under those statutes. The constitutionality of the NCRS has been challenged unsuccessfully in a number of prior cases on alternative grounds. Duke Energy Florida and FP&L filed motions to dismiss the complaint on May 5, 2016. On September 21, 2016, the Court granted the motions to dismiss with prejudice. Plaintiffs filed a motion for reconsideration, which was denied. On January 4, 2017, plaintiffs filed a notice of appeal to the Eleventh Circuit U.S. Court of Appeals (Eleventh Circuit). On July 11, 2018, the Eleventh Circuit affirmed the U.S. District Court's dismissal of the lawsuit. Plaintiffs have until October 9, 2018, to file a petition for certiorari with the U.S. Supreme Court.
Westinghouse Contract Litigation
On March 28, 2014, Duke Energy Florida filed a lawsuit against Westinghouse in the U.S. District Court for the Western District of North Carolina. The lawsuit seeks recovery of $54 million in milestone payments in excess of work performed under an Engineering, Procurement and Construction agreement (EPC) for Levy as well as a determination by the court of the amounts due to Westinghouse as a result of the termination of an EPC contract. Duke Energy Florida recognized an exit obligation as a result of the termination of the EPC. On March 31, 2014, Westinghouse filed a separate lawsuit against Duke Energy Florida in U.S. District Courtrelated to an EPC agreement for the Western Districtcombined-cycle natural gas plant in Citrus County, Florida. Fluor filed an amended complaint on February 13, 2019. Fluor’s multicount complaint seeks civil, statutory and contractual remedies related to Duke Energy Florida’s $67 million draw in early 2019, on Fluor’s letter of Pennsylvania alleging damages under the same EPC contract in excesscredit and offset of $510 million for engineering and design work, costs to end supplier contracts and an alleged termination fee. On June 9, 2014, the judge in the North Carolina case ruled that the litigation would proceed in the Western District of North Carolina.
On July 11, 2016,invoiced amounts. Duke Energy Florida moved to dismiss all counts of Fluor's amended complaint, and Westinghouse filed separate Motions for Summary Judgment. On September 29, 2016,on April 16, 2019, the court issued its ruling, granting Westinghousedismissed Fluor's complaint without prejudice. On April 26, 2019, Fluor filed a $30 million termination fee claim and dismissing Duke Energy Florida's $54 million refund claim. Westinghouse's claim for termination costs continued to trial. Following a trial on the matter, the court issued an order in December 2016 denying Westinghouse’s claim for termination costs and reaffirming its earlier ruling in favor of Westinghouse on the $30 million termination fee. Judgment was entered againstsecond amended complaint. Duke Energy Florida in the amount of approximately $34 million, which includes prejudgment interest. Westinghouse appealed the trial court's order to the U.S. Court of Appeals for the Fourth Circuit (Fourth Circuit) and Duke Energy Florida cross-appealed.
On March 29, 2017, Westinghouse filed Chapter 11 bankruptcy in the Southern District of New York, which automatically stayed the appeal. On May 23, 2017, the bankruptcy court entered an order lifting the stay with respect to the appeal. Briefing of the appeal concluded on October 20, 2017. Westinghouse and Duke Energy Florida executed a settlement agreement resolving this matter on April 5, 2018. The bankruptcy court approved the settlement and Duke Energy Florida paid approximately $34 million to Westinghouse in July 2018 pursuant to this agreement. At the request of the parties, the Fourth Circuit has dismissed the appeal.
MGP Cost Recovery Action
On December 30, 2011, Duke Energy Florida filed a lawsuit against FirstEnergy Corp. (FirstEnergy)is attempting to recover investigation and remediationfrom Fluor $110 million in additional costs incurred by Duke Energy Florida in connection with the restoration of two former MGP sites in Florida.
On August 1, 2019, Duke Energy Florida alleged that FirstEnergy, asand Fluor reached a settlement to resolve the successorpending litigation and other outstanding issues related to Associated Gas & Electric Co., owes past and future contribution and response costscompleting the Citrus County combined-cycle plant. The terms of up to $43 million for the investigation and remediation of MGP sites. On December 6, 2016, the trial court entered judgment againstsettlement will not have a material impact on Duke Energy Florida in the case. In January 2017, Duke Energy Florida appealed the decision to the U.S. CourtFlorida's results of Appeals for the Sixth Circuit, which affirmed the trial court's ruling on April 10, 2018.operations, cash flows or financial position.
Other Litigation and Legal Proceedings
The Duke Energy Registrants are involved in other legal, tax and regulatory proceedings arising in the ordinary course of business, some of which involve significant amounts. The Duke Energy Registrants believe the final disposition of these proceedings will not have a material effect on their results of operations, cash flows or financial position.
The table below presents recorded reserves based on management’s best estimate of probable loss for legal matters, excluding asbestos-related reserves and the exit obligation related to the termination of an EPC contract discussed above. Reserves are classified on the Condensed Consolidated Balance Sheets in Other within Other Noncurrent Liabilities and Accounts payable and Other within Current Liabilities. The reasonably possible range of loss in excess of recorded reserves is not material, other than as described above.
(in millions)June 30, 2019
 December 31, 2018
Reserves for Legal Matters   
Duke Energy$64
 $65
Duke Energy Carolinas7
 9
Progress Energy55
 54
Duke Energy Progress14
 12
Duke Energy Florida24
 24
Piedmont1
 1
(in millions)June 30, 2018
 December 31, 2017
Reserves for Legal Matters   
Duke Energy$68
 $88
Duke Energy Carolinas15
 30
Progress Energy52
 55
Duke Energy Progress11
 13
Duke Energy Florida25
 24
Piedmont2
 2

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)






OTHER COMMITMENTS AND CONTINGENCIES
General
As part of their normal business, the Duke Energy Registrants are party to various financial guarantees, performance guarantees and other contractual commitments to extend guarantees of credit and other assistance to various subsidiaries, investees and other third parties. These guarantees involve elements of performance and credit risk, which are not fully recognized on the Condensed Consolidated Balance Sheets and have unlimited maximum potential payments. However, the Duke Energy Registrants do not believe these guarantees will have a material effect on their results of operations, cash flows or financial position.
In addition, the Duke Energy Registrants enter into various fixed-price, noncancelable commitments to purchase or sell power or natural gas, take-or-pay arrangements, transportation, or throughput agreements and other contracts that may or may not be recognized on their respective Condensed Consolidated Balance Sheets. Some of these arrangements may be recognized at fair value on their respective Condensed Consolidated Balance Sheets if such contracts meet the definition of a derivative and the normal purchase/normal sale (NPNS)NPNS exception does not apply. In most cases, the Duke Energy Registrants’ purchase obligation contracts contain provisions for price adjustments, minimum purchase levels and other financial commitments.

61




FINANCIAL STATEMENTSLEASES


5. LEASES
As described in Note 1, Duke Energy adopted the revised accounting guidance for Leaseseffective January 1, 2019, using the modified retrospective method of adoption, which does not require restatement of prior year reported results. Adoption of the new standard resulted in the recording of ROU assets and operating lease liabilities as follows:
 As of January 1, 2019
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
ROU assets$1,750
 $153
 $863
 $407
 $456
 $23
 $61
 $26
Operating lease liabilities – current205
 28
 96
 35
 61
 1
 4
 4
Operating lease liabilities – noncurrent1,504
 127
 766
 371
 395
 22
 58
 25

As part of its operations, Duke Energy leases certain aircraft, space on communication towers, industrial equipment, fleet vehicles, fuel transportation (barges and railcars), land and office space under various terms and expiration dates. Additionally, Duke Energy Carolinas, Duke Energy Progress and Duke Energy Indiana have finance leases related to firm natural gas pipeline transportation capacity. Duke Energy Progress and Duke Energy Florida have entered into certain PPAs, which are classified as finance and operating leases.
Duke Energy has certain lease agreements, which include variable lease payments that are based on the usage of an asset. These variable lease payments are not included in the measurement of the ROU assets or operating lease liabilities on the Condensed Consolidated Financial Statements.
Certain Duke Energy lease agreements include options for renewal and early termination. The intent to renew a lease varies depending on the lease type and asset. Renewal options that are reasonably certain to be exercised are included in the lease measurements. The decision to terminate a lease early is dependent on various economic factors. No termination options have been included in any of the lease measurements.
Duke Energy operates various renewable energy projects and sells the generated output to utilities, electric cooperatives, municipalities and commercial and industrial customers through long-term PPAs. In certain situations, these PPAs and the associated renewable energy projects qualify as operating leases. Rental income from these leases is accounted for as Nonregulated electric and other revenues in the Condensed Consolidated Statements of Operations. There are no minimum lease payments as all payments are contingent based on actual electricity generated by the renewable energy projects. Contingent lease payments were $72 million and $136 million for the three and six months ended June 30, 2019, respectively. As of June 30, 2019, renewable energy projects owned by Duke Energy and accounted for as operating leases had a cost basis of $3,344 million and accumulated depreciation of $661 million. These assets are principally classified as nonregulated electric generation and transmission assets.

62




FINANCIAL STATEMENTSLEASES


The following table presents the components of lease expense.
 Three Months Ended June 30, 2019
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Operating lease expense(a)
$73
 $11
 $40
 $17
 $23
 $3
 $5
 $2
Short-term lease expense(a)
6
 2
 4
 2
 2
 1
 
 
Variable lease expense(a)
10
 4
 5
 2
 3
 
 
 
Finance lease expense               
Amortization of leased assets(b)
29
 1
 5
 1
 4
 1
 
 
Interest on lease liabilities(c)
20
 3
 13
 10
 3
 
 1
 
Total finance lease expense49
 4
 18
 11
 7
 1
 1
 
Total lease expense$138
 $21
 $67
 $32
 $35
 $5
 $6
 $2
 Six Months Ended June 30, 2019
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Operating lease expense(a)
$145
 $23
 $82
 $36
 $46
 $6
 $10
 $3
Short-term lease expense(a)
13
 4
 7
 3
 4
 1
 1
 
Variable lease expense(a)
21
 12
 7
 3
 4
 
 
 
Finance lease expense               
Amortization of leased assets(b)
56
 2
 8
 2
 6
 1
 
 
Interest on lease liabilities(c)
37
 7
 19
 14
 5
 
 1
 
Total finance lease expense93
 9
 27
 16
 11
 1
 1
 
Total lease expense$272
 $48
 $123
 $58
 $65
 $8
 $12
 $3
(a)Included in Operations, maintenance and other or, for barges and railcars, Fuel used in electric generation and purchased power on the Condensed Consolidated Statements of Operations.
(b)Included in Depreciation and amortization on the Condensed Consolidated Statements of Operations.
(c)Included in Interest Expense on the Condensed Consolidated Statements of Operations.
The following table presents rental expense for operating leases, as reported under the old lease standard. These amounts are included in Operation, maintenance and other and Fuel used in electric generation and purchased power on the Condensed Consolidated Statements of Operations.
(in millions)Year Ended December 31, 2018
Duke Energy$268
Duke Energy Carolinas49
Progress Energy143
Duke Energy Progress75
Duke Energy Florida68
Duke Energy Ohio13
Duke Energy Indiana21
Piedmont11


63




FINANCIAL STATEMENTSLEASES


The following table presents operating lease maturities and a reconciliation of the undiscounted cash flows to operating lease liabilities.
 Twelve Months Ended June 30,
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
2020$279
 $33
 $129
 $51
 $78
 $2
 $6
 $5
2021239
 28
 112
 52
 60
 2
 5
 5
2022199
 19
 94
 40
 54
 2
 4
 5
2023190
 18
 95
 40
 55
 2
 4
 5
2024178
 15
 96
 41
 55
 2
 4
 5
Thereafter1,055
 61
 513
 306
 207
 22
 65
 7
Total operating lease payments2,140
 174
 1,039
 530
 509
 32
 88
 32
Less: present value discount(425) (30) (192) (117) (75) (10) (28) (3)
Total operating lease liabilities(a)
$1,715
 $144
 $847
 $413
 $434
 $22
 $60
 $29
(a)Certain operating lease payments include renewal options that are reasonably certain to be exercised.
The following table presents future minimum lease payments under operating leases, which at inception had a non-cancelable term of more than one year, as reported under the old lease standard.
 December 31, 2018
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
2019$239
 $33
 $97
 $49
 $48
 $2
 $6
 $5
2020219
 29
 90
 46
 44
 2
 5
 5
2021186
 19
 79
 37
 42
 2
 4
 5
2022170
 19
 76
 34
 42
 2
 4
 5
2023160
 17
 77
 35
 42
 2
 5
 6
Thereafter1,017
 68
 455
 314
 141
 23
 66
 11
Total$1,991
 $185
 $874
 $515
 $359
 $33
 $90
 $37

The following table presents finance lease maturities and a reconciliation of the undiscounted cash flows to finance lease liabilities.
 Twelve Months Ended June 30,
   Duke
   Duke
 Duke
 Duke
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Indiana
2020$177
 $19
 $69
 $44
 $25
 $1
2021183
 17
 69
 44
 25
 1
2022180
 14
 69
 44
 25
 1
2023171
 14
 69
 44
 25
 1
2024172
 14
 64
 44
 20
 1
Thereafter847
 191
 560
 547
 13
 28
Total finance lease payments1,730
 269
 900
 767
 133
 33
Less: amounts representing interest(708) (162) (483) (457) (26) (23)
Total finance lease liabilities$1,022
 $107
 $417
 $310
 $107
 $10


64




FINANCIAL STATEMENTSLEASES


The following table presents future minimum lease payments under finance leases, as reported under the old lease standard.
 December 31, 2018
   Duke
   Duke
 Duke
 Duke
 Duke
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
2019$170
 $20
 $45
 $20
 $25
 $2
 $1
2020174
 20
 46
 21
 25
 
 1
2021177
 15
 45
 20
 25
 
 1
2022165
 15
 45
 21
 24
 
 1
2023165
 15
 45
 21
 24
 
 1
Thereafter577
 204
 230
 209
 21
 
 27
Minimum annual payments1,428
 289
 456
 312
 144
 2
 32
Less: amount representing interest(487) (180) (205) (175) (30) 
 (22)
Total$941
 $109
 $251
 $137
 $114
 $2
 $10

The following tables contain additional information related to leases.
  June 30, 2019
                 
    Duke
   Duke
 Duke
 Duke
 Duke
  
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)ClassificationEnergy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Assets                
OperatingOperating lease ROU assets, net$1,735
 $141
 $839
 $407
 $432
 $22
 $60
 $26
FinanceNet property, plant and equipment1,013
 122
 423
 309
 114
 
 10
 
Total lease assets $2,748
 $263
 $1,262
 $716
 $546
 $22
 $70
 $26
Liabilities                
Current                
OperatingOther current liabilities$213
 $27
 $100
 $36
 $64
 $1
 $4
 $4
FinanceCurrent maturities of long-term debt115
 6
 23
 6
 17
 
 
 
Noncurrent                
OperatingOperating lease liabilities1,502
 117
 747
 377
 370
 21
 56
 25
FinanceLong-Term Debt907
 101
 394
 304
 90
 
 10
 
Total lease liabilities $2,737
 $251
 $1,264
 $723
 $541
 $22
 $70
 $29


65




FINANCIAL STATEMENTSLEASES


 Six Months Ended June 30, 2019
                
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Cash paid for amounts included in the measurement of lease liabilities(a)
               
Operating cash flows from operating leases$136
 $15
 $60
 $23
 $37
 $1
 $3
 $5
Operating cash flows from finance leases37
 7
 19
 14
 5
 
 1
 
Financing cash flows from finance leases56
 2
 8
 2
 6
 1
 
 
                
Lease assets obtained in exchange for new lease liabilities (non-cash)               
Operating(b)
$78
 $2
 $30
 $30
 $
 $
 $
 $1
Finance175
 
 175
 175
 
 
 
 
(a)No amounts were classified as investing cash flows from operating leases for the six months ended June 30, 2019.
(b)Does not include ROU assets recorded as a result of the adoption of the new lease standard.
 June 30, 2019
                
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
 Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Weighted-average remaining lease term (years)               
Operating leases11
 9
 10
 12
 9
 18
 19
 6
Finance leases16
 19
 17
 18
 12
 
 27
 
Weighted-average discount rate(a)
               
Operating leases3.9% 3.7% 3.8% 3.8% 3.7% 4.2% 4.1% 3.6%
Finance leases7.9% 12.9% 11.8% 12.4% 8.3% % 11.9% %
(a)The discount rate is calculated using the rate implicit in a lease if it is readily determinable. Generally, the rate used by the lessor is not provided to Duke Energy and in these cases the incremental borrowing rate is used. Duke Energy will typically use its fully collateralized incremental borrowing rate as of the commencement date to calculate and record the lease. The incremental borrowing rate is influenced by the lessee’s credit rating and lease term and as such may differ for individual leases, embedded leases or portfolios of leased assets.

66




FINANCIAL STATEMENTSDEBT AND CREDIT FACILITIES


6. DEBT AND CREDIT FACILITIES
SUMMARY OF SIGNIFICANT DEBT ISSUANCES
The following table summarizes significant debt issuances (in millions).
    Six Months Ended June 30, 2018
      Duke
 Duke
 Duke
 MaturityInterest
 Duke
 Energy
 Energy
 Energy
Issuance DateDateRate
 Energy
 (Parent)
 Carolinas
 Florida
Unsecured Debt          
March 2018(a)
April 20253.950% $250
 $250
 $
 $
May 2018(b)
May 20212.830% 500
 500
 
 
First Mortgage Bonds          
March 2018(c)
March 20233.050% 500
 
 500
 
March 2018(c)
March 20483.950% 500
 
 500
 
June 2018(d)
July 20283.800%
600



 
 600
June 2018(d)
July 20484.200%
400


 
 400
Total issuances   $2,750
 $750

$1,000

$1,000
    Six Months Ended June 30, 2019 
      Duke
 Duke
 Duke
  
 MaturityInterest
 Duke
 Energy
 Energy
 Energy
  
Issuance DateDateRate
 Energy
 (Parent)
 Progress
 Ohio
 Piedmont
Unsecured Debt            
March 2019(a)
March 20223.251%
(b) 
$300
 $300
 $
 $
 $
March 2019(a)
March 20223.227% 300
 300
 
 
 
May 2019(e)
June 20293.500% 600
 
 
 
 600
June 2019(a)
June 20293.400% 600
 600
 
 
 
June 2019(a)
June 20494.200% 600
 600
 
 
 
First Mortgage Bonds            
January 2019(c)
February 20293.650% 400
 
 
 400
 
January 2019(c)
February 20494.300% 400
 
 
 400
 
March 2019(d)
March 20293.450%
600


 600
 
 
Total issuances   $3,800
 $1,800

$600
 $800

$600
(a)Debt issued to pay down short-term debt.debt and for general corporate purposes.
(b)Debt issued to pay down short-term debt. Debt issuance has a floating interest rate.
(c)Debt issued to repay at maturity a $300$450 million first mortgage bondbonds due April 2018,2019, pay down intercompany short-term debt and for general corporate purposes.
(d)Debt issued to fund eligible green energy projects in the Carolinas.
(e)
Debt issued to repay a portion of intercompanyin full the outstanding $350 million Piedmont unsecured term loan due September 2019, pay down short-term debt under money-pool borrowing arrangement and for general corporate purposes.
In June 2019, Duke Energy Kentucky priced $210 million of unsecured debentures of which $95 million carry a fixed interest rate of 3.23 percent and mature October 2025, $75 million carry a fixed interest rate of 3.56 percent and mature October 2029, and $40 million carry a fixed interest rate of 4.32 percent and mature July 2049. The $40 million tranche closed and funded in July 2019, and the remaining tranches are expected to close in September 2019 upon receipt of necessary regulatory approvals. The proceeds will be used to refinance Duke Energy Kentucky's $100 million, 4.65 percent debentures maturing October 2019, to pay down short-term intercompany debt and for general corporate purposes.
CURRENT MATURITIES OF LONG-TERM DEBT
The following table shows the significant components of Current Maturities of Long-Term Debt on the Condensed Consolidated Balance Sheets. The Duke Energy Registrants currently anticipate satisfying these obligations with cash on hand and proceeds from additional borrowings.
(in millions)Maturity Date Interest Rate
 June 30, 2019
Unsecured Debt     
Duke Energy (Parent)September 2019 5.050% $500
Duke Energy KentuckyOctober 2019 4.650% 100
Progress EnergyDecember 2019 4.875% 350
Duke Energy (Parent)June 2020 2.100% 330
First Mortgage Bonds     
Duke Energy FloridaJanuary 2020 1.850% 250
Duke Energy FloridaApril 2020 4.550% 250
Duke Energy CarolinasJune 2020 4.300% 450
Other(a)
    468
Current maturities of long-term debt    $2,698
(in millions)Maturity Date Interest Rate
 June 30, 2018
Unsecured Debt     
PiedmontDecember 2018 2.796%
(b) 
$250
Progress EnergyMarch 2019 7.050% 450
First Mortgage Bonds     
Duke Energy CarolinasNovember 2018 7.000% 500
Duke Energy ProgressJanuary 2019 5.300% 600
Duke Energy OhioApril 2019 5.450% 450
Other(a)
    602
Current maturities of long-term debt    $2,852

(a)    Includes capitalfinance lease obligations, amortizing debt and small bullet maturities.
(b)    Debt issuance has a floating interest rate.

67


PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





FINANCIAL STATEMENTSDEBT AND CREDIT FACILITIES


AVAILABLE CREDIT FACILITIES
Master Credit Facility
In January 2018,March 2019, Duke Energy extended the termination date of substantially all ofamended its existing $8 billion Master Credit Facility capacity from March 16, 2022,to extend the termination date to March 16, 2023. In May 2018, Duke Energy completed the extension process with 100 percent of all commitments to the Master Credit Facility extending to March 16, 2023.2024. The Duke Energy Registrants, excluding Progress Energy (Parent), have borrowing capacity under the Master Credit Facility up to a specified sublimit for each borrower. Duke Energy has the unilateral ability at any time to increase or decrease the borrowing sublimits of each borrower, subject to a maximum sublimit for each borrower. The amount available under the Master Credit Facility has been reduced to backstop issuances of commercial paper, certain letters of credit and variable-rate demand tax-exempt bonds that may be put to the Duke Energy Registrants at the option of the holder. Duke Energy Carolinas and Duke Energy Progress are also required to each maintain $250 million of available capacity under the Master Credit Facility as security to meet obligations under plea agreements reached with the U.S. Department of Justice in 2015 related to violations at North Carolina facilities with ash basins. The table below includes the current borrowing sublimits and available capacity under the Master Credit Facility.
June 30, 2018June 30, 2019


 Duke
 Duke
 Duke
 Duke
 Duke
 Duke
  

 Duke
 Duke
 Duke
 Duke
 Duke
 Duke
  
Duke
 Energy
 Energy
 Energy
 Energy
 Energy
 Energy
  Duke
 Energy
 Energy
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 (Parent)
 Carolinas
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Energy
 (Parent)
 Carolinas
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Facility size(a)
$8,000
 $2,650
 $1,750
 $1,250
 $800
 $450
 $600
 $500
$8,000
 $2,650
 $1,750
 $1,250
 $800
 $450
 $600
 $500
Reduction to backstop issuances                              
Commercial paper(b)
(3,004) (1,087) (856) (556) 
 (189) (316) 
(3,420) (1,009) (1,099) (276) (474) (236) (326) 
Outstanding letters of credit(57) (49) (4) (2) 
 
 
 (2)(53) (45) (4) (2) 
 
 
 (2)
Tax-exempt bonds(81) 
 
 
 
 
 (81) 
(81) 
 
 
 
 
 (81) 
Coal ash set-aside(500) 
 (250) (250) 
 
 
 
(500) 
 (250) (250) 
 
 
 
Available capacity under the Master Credit Facility$4,358

$1,514

$640

$442

$800

$261

$203
 $498
$3,946

$1,596

$397

$722

$326

$214

$193
 $498
(a)Represents the sublimit of each borrower.
(b)Duke Energy issued $625 million of commercial paper and loaned the proceeds through the money pool to Duke Energy Carolinas, Duke Energy Progress, Duke Energy Ohio and Duke Energy Indiana. The balances are classified as Long-Term Debt Payable to Affiliated Companies on the Condensed Consolidated Balance Sheets.
Three-Year RevolvingOther Credit FacilityFacilities
Duke Energy (Parent) has a $1.0 billion revolving credit facility (the Three Year Revolver) through June 2020. As of June 30, 2018, $500
 June 30, 2019
(in millions)Facility size
 Amount drawn
Duke Energy (Parent) Three-Year Revolving Credit Facility(a)
$1,000
 $500
Duke Energy Progress Term Loan Facility(b)
700
 700
(a)In May 2019, Duke Energy (Parent) extended the termination date to May 2022.
(b)$650 million was drawn under the term loan in January and February 2019.
In May 2019, the $350 million has been drawn under Piedmont term loan was paid off in full with proceeds from the Three Year Revolver. This balance is classified as Long-Term Debt on Duke Energy's Condensed Consolidated Balance Sheets. Any undrawn commitments can be drawn, and borrowings can be prepaid, at any time throughout the term of the facility. The terms and conditions of the Three Year Revolver are generally consistent with those governing Duke Energy's Master Credit Facility.$600 million Piedmont debt offering.

68

6.



FINANCIAL STATEMENTSASSET RETIREMENT OBLIGATIONS


7. ASSET RETIREMENT OBLIGATIONS
The Duke Energy Registrants record AROs when there is a legal obligation to incur retirement costs associated with the retirement of a long-lived asset and the obligation can be reasonably estimated. Actual closure costs incurred could be materially different from current estimates that form the basis of the recorded AROs.
The following table presents the AROs recorded on the Condensed Consolidated Balance Sheets.
June 30, 2018June 30, 2019
  Duke
   Duke
 Duke
 Duke
 Duke
    Duke
   Duke
 Duke
 Duke
 Duke
  
Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Decommissioning of Nuclear Power Facilities(a)
$5,319
 $2,002
 $3,158
 $2,621
 $536
 $
 $
 $
Closure of Ash Impoundments4,843
 1,761
 2,202
 2,178
 24
 44
 836
 
Decommissioning of nuclear power facilities(a)
$5,807
 $2,401
 $3,265
 $2,739
 $526
 $
 $
 $
Closure of ash impoundments6,498
 2,894
 2,858
 2,839
 19
 47
 699
 
Other307
 56
 78
 36
 42
 45
 20
 15
323
 47
 70
 38
 32
 42
 20
 19
Total ARO$10,469
 $3,819
 $5,438
 $4,835
 $602
 $89
 $856
 $15
$12,628
 $5,342
 $6,193
 $5,616
 $577
 $89
 $719
 $19
Less: current portion716
 227
 386
 381
 5
 5
 98
 
739
 203
 416
 413
 3
 6
 115
 
Total noncurrent ARO$9,753

$3,592

$5,052

$4,454

$597

$84

$758
 $15
$11,889

$5,139

$5,777

$5,203

$574

$83

$604
 $19
(a)    Duke Energy amount includes purchase accounting adjustments related to the merger with Progress Energy.
ARO Liability Rollforward

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Actual closure costs incurred could be materially different from current estimates that form the basis of the recorded AROs. The following table presents the change in liability associated with AROs for the Duke Energy Registrants.
  Duke
   Duke
 Duke
 Duke
 Duke
    Duke
   Duke
 Duke
 Duke
 Duke
  
Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Balance at December 31, 2017(a)
$10,175
 $3,610
 $5,414
 $4,673
 $742
 $84
 $781
 $15
Balance at December 31, 2018(a)
$10,467
 $3,949
 $5,411
 $4,820
 $591
 $93
 $722
 $19
Accretion expense(b)
212
 89
 113
 97
 16
 2
 14
 
245
 111
 124
 111
 13
 2
 14
 
Liabilities settled(c)
(245) (114) (108) (89) (19) (2) (21) 
(404) (155) (225) (197) (28) (6) (17) 
Liabilities incurred in the current year8
 8
 
 
 
 
 
 
Revisions in estimates of cash flows(d)
319
 226
 19
 154
 (137) 5
 82
 
2,320
 1,437
 883
 882
 1
 
 
 
Balance at June 30, 2018$10,469
 $3,819
 $5,438
 $4,835
 $602
 $89
 $856
 $15
Balance at June 30, 2019$12,628
 $5,342
 $6,193
 $5,616
 $577
 $89
 $719
 $19
(a)Primarily relates to decommissioning nuclear power facilities, closure of ash impoundments, asbestos removal, closure of landfills at fossil generation facilities, retirement of natural gas mains and removal of renewable energy generation assets.
(b)For the six months ended June 30, 2018,2019, substantially all accretion expense relates to Duke Energy's regulated electric operations and has been deferred in accordance with regulatory accounting treatment.
(c)Primarily relates to ash impoundment closures and nuclear decommissioning of Crystal River Unit 3.closures.
(d)Primarily relatesRelates to increases in groundwater monitoringclosure estimates for closure ofcertain ash impoundments andas a reductionresult of the NCDEQ's April 1 Order. See Note 4 for nuclear decommissioning at Crystal River Unit 3 compared to original estimates.more information. The incremental amount recorded represents the discounted cash flows for estimated closure costs based upon the probability weightings of the potential closure methods as evaluated on a site-by-site basis.
Asset retirement costs associated with the AROs for operating plants and retired plants are included in Net property, plant and equipment and Regulatory assets within Other Noncurrent Assets, respectively, on the Condensed Consolidated Balance Sheets.
Nuclear Decommissioning Trust Funds
Duke Energy Carolinas, Duke Energy Progress and Duke Energy Florida each maintain NDTFs that are intended to pay for the decommissioning costs of their respective nuclear power plants. The following table presents the fair value of NDTF assets legally restricted for purposes of settling AROs associated with nuclear decommissioning. Duke Energy Florida is actively decommissioning Crystal River Unit 3 and was granted an exemption from the NRC, which allows for use of the NDTF for all aspects of nuclear decommissioning. The entire balance of Duke Energy Florida's NDTF may be applied toward license termination, spent fuel and site restoration costs incurred to decommission Crystal River Unit 3 and is excluded from the table below. See Note 12 for additional information related to the fair value of the Duke Energy Registrants' NDTFs.
(in millions)June 30, 2019 December 31, 2018
Duke Energy$6,327
 $5,579
Duke Energy Carolinas3,574
 3,133
Duke Energy Progress2,753
 2,446


69

7.



FINANCIAL STATEMENTSGOODWILL


8. GOODWILL
Duke Energy
The following table presents the goodwill by reportable operating segment included on Duke Energy's Condensed Consolidated Balance Sheets at June 30, 2018,2019, and December 31, 2017.2018.
 Electric Utilities
 Gas Utilities
 Commercial
  
(in millions)and Infrastructure
 and Infrastructure
 Renewables
 Total
Goodwill balance$17,379
 $1,924
 $122
 $19,425
Accumulated impairment charges
 
 (122) (122)
Goodwill, adjusted for accumulated impairment charges$17,379
 $1,924
 $
 $19,303
 Electric Utilities
 Gas Utilities
 Commercial
  
(in millions)and Infrastructure
 and Infrastructure
 Renewables
 Total
Goodwill balance$17,379
 $1,924
 $122
 $19,425
Accumulated impairment charges
 
 (29) (29)
Goodwill, adjusted for accumulated impairment charges$17,379
 $1,924
 $93
 $19,396

Duke Energy Ohio
Duke Energy Ohio's Goodwill balance of $920 million, allocated $596 million to Electric Utilities and Infrastructure and $324 million to Gas Utilities and Infrastructure, is presented net of accumulated impairment charges of $216 million on the Condensed Consolidated Balance Sheets at June 30, 2018,2019, and December 31, 2017.2018.
Progress Energy
Progress Energy's Goodwill is included in the Electric Utilities and Infrastructure operating segment and there are no accumulated impairment charges.
Piedmont
Piedmont's Goodwill is included in the Gas Utilities and Infrastructure operating segment and there are no accumulated impairment charges.

70



PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





FINANCIAL STATEMENTSRELATED PARTY TRANSACTIONS
8.

9. RELATED PARTY TRANSACTIONS
The Subsidiary Registrants engage in related party transactions in accordance with applicable state and federal commission regulations. Refer to the Condensed Consolidated Balance Sheets of the Subsidiary Registrants for balances due to or due from related parties. Material amounts related to transactions with related parties included on the Condensed Consolidated Statements of Operations and Comprehensive Income are presented in the following table.
Three Months Ended June 30, Six Months Ended June 30,Three Months Ended June 30, Six Months Ended June 30,
(in millions)2018
 2017
 2018
 2017
2019
 2018
 2019
 2018
Duke Energy Carolinas              
Corporate governance and shared service expenses(a)
$213
 $218
 $433
 $439
$197
 $213
 $409
 $433
Indemnification coverages(b)
5
 6
 11
 12
5
 5
 10
 11
JDA revenue(c)
19
 17
 53
 33
17
 19
 40
 53
JDA expense(c)
19
 21
 73
 52
20
 19
 113
 73
Intercompany natural gas purchases(d)
4
 1
 8
 2
3
 4
 7
 8
Progress Energy              
Corporate governance and shared service expenses(a)
$206
 $178
 $397
 $348
$183
 $206
 $359
 $397
Indemnification coverages(b)
9
 9
 17
 19
10
 9
 19
 17
JDA revenue(c)
19
 21
 73
 52
20
 19
 113
 73
JDA expense(c)
19
 17
 53
 33
17
 19
 40
 53
Intercompany natural gas purchases(d)
19
 19
 38
 38
19
 19
 38
 38
Duke Energy Progress              
Corporate governance and shared service expenses(a)
$126
 $109
 $244
 $209
$108
 $126
 $214
 $244
Indemnification coverages(b)
3
 3
 6
 7
4
 3
 8
 6
JDA revenue(c)
19
 21
 73
 52
20
 19
 113
 73
JDA expense(c)
19
 17
 53
 33
17
 19
 40
 53
Intercompany natural gas purchases(d)
19
 19
 38
 38
19
 19
 38
 38
Duke Energy Florida              
Corporate governance and shared service expenses(a)
$80
 $69
 $153
 $139
$75
 $80
 $145
 $153
Indemnification coverages(b)
6
 6
 11
 12
6
 6
 11
 11
Duke Energy Ohio              
Corporate governance and shared service expenses(a)
$90
 $93
 $179
 $185
$83
 $90
 $168
 $179
Indemnification coverages(b)
1
 1
 2
 2
1
 1
 2
 2
Duke Energy Indiana              
Corporate governance and shared service expenses(a)
$96
 $92
 $197
 $187
$93
 $96
 $190
 $197
Indemnification coverages(b)
2
 2
 4
 4
1
 2
 3
 4
Piedmont              
Corporate governance and shared service expenses(a)
$40
 $9
 $76
 $14
$37
 $40
 $69
 $76
Indemnification coverages(b)

 
 1
 1

 
 1
 1
Intercompany natural gas sales(d)
23
 20
 46
 40
22
 23
 45
 46
Natural gas storage and transportation costs(e)
6
 6
 11
 12
(a)The Subsidiary Registrants are charged their proportionate share of corporate governance and other shared services costs, primarily related to human resources, employee benefits, information technology, legal and accounting fees, as well as other third-party costs. These amounts are primarily recorded in Operation, maintenance and other on the Condensed Consolidated Statements of Operations and Comprehensive Income.
(b)The Subsidiary Registrants incur expenses related to certain indemnification coverages through Bison, Duke Energy’s wholly owned captive insurance subsidiary. These expenses are recorded in Operation, maintenance and other on the Condensed Consolidated Statements of Operations and Comprehensive Income.
(c)Duke Energy Carolinas and Duke Energy Progress participate in a Joint Dispatch Agreement (JDA),JDA, which allows the collective dispatch of power plants between the service territories to reduce customer rates. Revenues from the sale of power and expenses from the purchase of power pursuant to the JDA are recorded in Operating Revenues and Fuel used in electric generation and purchased power, respectively, on the Condensed Consolidated Statements of Operations and Comprehensive Income.
(d)Piedmont provides long–termlong-term natural gas delivery service to certain Duke Energy Carolinas and Duke Energy Progress natural gas–firedgas-fired generation facilities. Piedmont records the sales in Operating revenues, and Duke Energy Carolinas and Duke Energy Progress record the related purchases as a component of Fuel used in electric generation and purchased power on their respective Condensed Consolidated Statements of Operations and Comprehensive Income.
(e)Piedmont has related party transactions as a customer of its equity method investments in Pine Needle, Hardy Storage, and Cardinal natural gas storage and transportation facilities. These intercompany revenues and expenses are eliminatedincluded in consolidation.Cost of natural gas on Piedmont's Condensed Consolidated Statements of Operations and Comprehensive Income.

71




FINANCIAL STATEMENTSRELATED PARTY TRANSACTIONS


In addition to the amounts presented above, the Subsidiary Registrants have other affiliate transactions, including rental of office space, participation in a money pool arrangement, other operational transactions and their proportionate share of certain charged expenses. These transactions of the Subsidiary Registrants were not material forare incurred in the threeordinary course of business and six months ended June 30, 2018, and 2017.are eliminated in consolidation.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





As discussed in Note 1213, certain trade receivables have been sold by Duke Energy Ohio and Duke Energy Indiana to Cinergy Receivables Company LLC (CRC),CRC, an indirectaffiliate formed by a subsidiary of Duke Energy. The proceeds obtained from the sales of receivables are largely cash but alsodo include a subordinated note from CRC for a portion of the purchase price.
Equity Method Investments
Piedmont has related party transactions as a customer of its equity method investments in natural gas storage and transportation facilities. The following table presents expenses for the three and six months ended June 30, 2018, and 2017, which are included in Cost of natural gas on Piedmont's Condensed Consolidated Statements of Operations and Comprehensive Income.
  Three Months Ended June 30, Six Months Ended June 30,
(in millions)Type of expense20182017 20182017
CardinalTransportation Costs$1
$2
 $3
$4
Pine NeedleNatural Gas Storage Costs2
2
 4
4
Hardy StorageNatural Gas Storage Costs3
3
 5
5
Total $6
$7
 $12
$13
Piedmont had accounts payable to its equity method investments of $2 million at June 30, 2018, and December 31, 2017, related to these transactions. These amounts are included in Accounts payable on the Condensed Consolidated Balance Sheets.
Intercompany Income Taxes
Duke Energy and the Subsidiary Registrants file a consolidated federal income tax return and other state and jurisdictional returns. The Subsidiary Registrants have a tax sharing agreement with Duke Energy for the allocation of consolidated tax liabilities and benefits. Income taxes recorded represent amounts the Subsidiary Registrants would incur as separate C-Corporations. The following table includes the balance of intercompany income tax receivables and payables for the Subsidiary Registrants.
 Duke
 Duke
Duke
Duke
Duke
 
 Energy
Progress
Energy
Energy
Energy
Energy
 
(in millions)Carolinas
Energy
Progress
Florida
Ohio
Indiana
Piedmont
June 30, 2019       
Intercompany income tax receivable$
$25
$
$
$15
$
$26
Intercompany income tax payable76

41
19

1

        
December 31, 2018       
Intercompany income tax receivable$52
$47
$29
$
$
$8
$
Intercompany income tax payable


16
3

45
 Duke
 Duke
Duke
Duke
Duke
 
 Energy
Progress
Energy
Energy
Energy
Energy
 
(in millions)Carolinas
Energy
Progress
Florida
Ohio
Indiana
Piedmont
June 30, 2018       
Intercompany income tax receivable$
$273
$
$140
$
$
$12
Intercompany income tax payable22

24

3
14

        
December 31, 2017       
Intercompany income tax receivable$
$168
$
$44
$22
$
$7
Intercompany income tax payable44

21


35


9.10. DERIVATIVES AND HEDGING
The Duke Energy Registrants use commodity and interest rate contracts to manage commodity price risk and interest rate risk. The primary use of commodity derivatives is to hedge the generation portfolio against changes in the prices of electricity and natural gas. Piedmont enters into natural gas supply contracts to provide diversification, reliability and natural gas cost benefits to its customers. Interest rate swapsderivatives are used to manage interest rate risk associated with borrowings.
All derivative instruments not identified as NPNS are recorded at fair value as assets or liabilities on the Condensed Consolidated Balance Sheets. Cash collateral related to derivative instruments executed under master netting arrangements is offset against the collateralized derivatives on the Condensed Consolidated Balance Sheets. The cash impacts of settled derivatives are recorded as operating activities on the Condensed Consolidated Statements of Cash Flows.
INTEREST RATE RISK
The Duke Energy Registrants are exposed to changes in interest rates as a result of their issuance or anticipated issuance of variable-rate and fixed-rate debt and commercial paper. Interest rate risk is managed by limiting variable-rate exposures to a percentage of total debt and by monitoring changes in interest rates. To manage risk associated with changes in interest rates, the Duke Energy Registrants may enter into interest rate swaps, U.S. Treasury lock agreements and other financial contracts. In anticipation of certain fixed-rate debt issuances, a series of forward-starting interest rate swaps or Treasury locks may be executed to lock in components of current market interest rates. These instruments are later terminated prior to or upon the issuance of the corresponding debt.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Cash Flow Hedges
For a derivative designated as hedging the exposure to variable cash flows of a future transaction, referred to as a cash flow hedge, the effective portion of the derivative's gain or loss is initially reported as a component of other comprehensive income and subsequently reclassified into earnings once the future transaction impacts earnings. Amounts for interest rate contracts are reclassified to earnings as interest expense over the term of the related debt. Gains and losses reclassified out of AOCI for the three and six months ended June 30, 20182019, and 20172018, were not material. Duke Energy's interest rate derivatives designated as hedges include interest rate swaps used to hedge existing debt within the Commercial Renewables business.business and forward-starting interest rate swaps not accounted for under regulatory accounting.
Undesignated Contracts
Undesignated contracts primarily include contracts not designated as a hedge because they are accounted for under regulatory accounting or contracts that do not qualify for hedge accounting.
Duke Energy’s interest rate swaps for its regulated operations employ regulatory accounting. With regulatory accounting, the mark-to-market gains or losses on the swaps are deferred as regulatory liabilities or regulatory assets, respectively. Regulatory assets and liabilities are amortized consistent with the treatment of the related costs in the ratemaking process. The accrual of interest on the swaps is recorded as Interest Expense on the Duke Energy Registrant's Condensed Consolidated Statements of Operations and Comprehensive Income.

72




FINANCIAL STATEMENTSDERIVATIVES AND HEDGING


The following table shows notional amounts of outstanding derivatives related to interest rate risk.
June 30, 2018June 30, 2019
  Duke
   Duke
 Duke
 Duke
  Duke
   Duke
 Duke
 Duke
Duke
 Energy
 Progress
 Energy
 Energy
 Energy
Duke
 Energy
 Progress
 Energy
 Energy
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
Cash flow hedges(a)
$411
 $
 $
 $
 $
 $
$959
 $
 $
 $
 $
 $
Undesignated contracts1,527
 400
 900
 650
 250
 27
1,427
 600
 800
 250
 550
 27
Total notional amount(a)$1,938

$400

$900

$650

$250

$27
$2,386

$600

$800

$250

$550

$27
December 31, 2017December 31, 2018
  Duke
   Duke
 Duke
 Duke
  Duke
   Duke
 Duke
 Duke
Duke
 Energy
 Progress
 Energy
 Energy
 Energy
Duke
 Energy
 Progress
 Energy
 Energy
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
Cash flow hedges(a)
$660
 $
 $
 $
 $
 $
$923
 $
 $
 $
 $
 $
Undesignated contracts927
 400
 500
 250
 250
 27
1,721
 300
 1,200
 650
 550
 27
Total notional amount(a)$1,587
 $400
 $500
 $250
 $250
 $27
$2,644
 $300
 $1,200
 $650
 $550
 $27

(a)Duke Energy includes amounts related to consolidated VIEs of $611$659 million in cash flow hedges as of June 30, 2018,2019, and $660$422 million in cash flow hedges and $194 million in undesignated contracts as of December 31, 2017.2018.
COMMODITY PRICE RISK
The Duke Energy Registrants are exposed to the impact of changes in the prices of electricity purchased and sold in bulk power markets and coal and natural gas purchases, including Piedmont's natural gas supply contracts. Exposure to commodity price risk is influenced by a number of factors including the term of contracts, the liquidity of markets and delivery locations. For the Subsidiary Registrants, bulk power electricity and coal and natural gas purchases flow through fuel adjustment clauses, formula-based contracts or other cost-sharing mechanisms. Differences between the costs included in rates and the incurred costs, including undesignated derivative contracts, are largely deferred as regulatory assets or regulatory liabilities. Piedmont policies allow for the use of financial instruments to hedge commodity price risks. The strategy and objective of these hedging programs are to use the financial instruments to reduce natural gas costs volatility for customers.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Volumes
The tables below include volumes of outstanding commodity derivatives. Amounts disclosed represent the absolute value of notional volumes of commodity contracts excluding NPNS. The Duke Energy Registrants have netted contractual amounts where offsetting purchase and sale contracts exist with identical delivery locations and times of delivery. Where all commodity positions are perfectly offset, no quantities are shown.
June 30, 2018June 30, 2019
  Duke
   Duke
 Duke
 Duke
    Duke
   Duke
 Duke
 Duke
 Duke
  
Duke
 Energy
 Progress
 Energy
 Energy
 Energy
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
Energy
 Carolinas
 Energy
 Progress
 Florida
 Indiana
 Piedmont
Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Electricity (gigawatt-hours)54
 
 
 
 
 54
 
Electricity (GWh)33,135
 
 
 
 
 3,514
 29,621
 
Natural gas (millions of dekatherms)756
 116
 171
 152
 19
 3
 466
740
 133
 173
 173
 
 
 4
 430
December 31, 2017December 31, 2018
  Duke
   Duke
 Duke
 Duke
    Duke
   Duke
 Duke
 Duke
 Duke
  
Duke
 Energy
 Progress
 Energy
 Energy
 Energy
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
Energy
 Carolinas
 Energy
 Progress
 Florida
 Indiana
 Piedmont
Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Electricity (gigawatt-hours)34
 
 
 
 
 34
 
Electricity (GWh)15,286
 
 
 
 
 1,786
 13,500
 
Natural gas (millions of dekatherms)770
 105
 183
 133
 50
 2
 480
739
 121
 169
 166
 3
 
 1
 448

U.S. EQUITY SECURITIES RISK
In May 2019, Duke Energy Florida entered into a Decommissioning Services Agreement for the accelerated decommissioning of Crystal River Unit 3 with ADP CR3, LLC and ADP SF1, LLC. The accelerated decommissioning of Crystal River Unit 3 is subject to the approval of the NRC and the FPSC. Duke Energy Florida executed U.S. equity option collars within the NDTF in May 2019 to preserve the U.S. equity portfolio value in the Duke Energy Florida NDTF in the event the accelerated decommissioning is approved. These option collars were executed as a purchase of a put option and the sale of a call option on certain U.S. equity index funds. The put and call options create a collar to guarantee a minimum and maximum investment value for the Duke Energy Florida NDTF U.S. equity portfolio. The put and call options were entered into at zero-cost, with the price to purchase the puts offset entirely by the funds received to sell the calls. As of June 30, 2019, the aggregate notional amount of both the put and call options was 305,000 units in U.S. equity security index funds. The derivative balances associated with these equity options are immaterial as of June 30, 2019. The options are not designated as hedging instruments. Substantially all of Duke Energy Florida’s NDTF qualifies for regulatory accounting. With regulatory accounting, the mark-to-market gains or losses on the options are deferred as regulatory liabilities or regulatory assets, respectively.

73





FINANCIAL STATEMENTSDERIVATIVES AND HEDGING
PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)







LOCATION AND FAIR VALUE OF DERIVATIVE ASSETS AND LIABILITIES RECOGNIZED ON THE CONDENSED CONSOLIDATED BALANCE SHEETS
The following tables show the fair value and balance sheet location of derivative instruments. Although derivatives subject to master netting arrangements are netted on the Condensed Consolidated Balance Sheets, the fair values presented below are shown gross and cash collateral on the derivatives has not been netted against the fair values shown.
Derivative Assets June 30, 2018 June 30, 2019
   Duke
   Duke
 Duke
 Duke
 Duke
     Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
   Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
 Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Commodity Contracts                                
Not Designated as Hedging Instruments                                
Current $62
 $3
 $4
 $3
 $1
 $9
 $45
 $2
 $37
 $
 $
 $
 $
 $7
 $29
 $2
Noncurrent 2
 
 1
 1
 
 
 
 
Total Derivative Assets – Commodity Contracts $64
 $3
 $5
 $4
 $1
 $9
 $45
 $2
 $37
 $
 $
 $
 $
 $7
 $29
 $2
Interest Rate Contracts                                
Designated as Hedging Instruments                                
Current $1
 $
 $
 $
 $
 $
 $
 $
Noncurrent 5
 
 
 
 
 
 
 
Not Designated as Hedging Instruments                
Current 1
 
 
 
 
 
 
 
Noncurrent 16
 
 
 
 
 
 
 
 1
 
 
 
 
 
 
 
Total Derivative Assets – Interest Rate Contracts $23
 $
 $
 $
 $
 $
 $
 $
 $1
 $
 $
 $
 $
 $
 $
 $
Total Derivative Assets $87

$3

$5

$4

$1

$9

$45
 $2
 $38

$

$

$

$

$7

$29
 $2
Derivative Liabilities June 30, 2018 June 30, 2019
   Duke
   Duke
 Duke
 Duke
 Duke
     Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
   Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
 Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Commodity Contracts                                
Not Designated as Hedging Instruments                                
Current $23
 $8
 $3
 $3
 $1
 $
 $
 $10
 $64
 $31
 $24
 $24
 $
 $
 $2
 $7
Noncurrent 166
 10
 17
 7
 
 
 
 140
 140
 8
 24
 9
 
 
 
 107
Total Derivative Liabilities – Commodity Contracts $189
 $18
 $20
 $10
 $1
 $
 $
 $150
 $204
 $39
 $48
 $33
 $
 $
 $2
 $114
Interest Rate Contracts                                
Designated as Hedging Instruments                                
Current $3
 $1
 $
 $
 $
 $
 $
 $
 $4
 $
 $
 $
 $
 $
 $
 $
Noncurrent 1
 
 
 
 
 
 
 
 32
 
 
 
 
 
 
 
Not Designated as Hedging Instruments                                
Current 6
 
 5
 2
 3
 
 
 
 86
 54
 31
 2
 29
 1
 
 
Noncurrent 14
 
 10
 9
 1
 4
 
 
 16
 
 11
 
 10
 5
 
 
Total Derivative Liabilities – Interest Rate Contracts $24
 $1
 $15
 $11
 $4
 $4
 $
 $
 $138
 $54
 $42
 $2
 $39
 $6
 $
 $
Total Derivative Liabilities $213

$19

$35

$21

$5

$4

$
 $150
 $342

$93

$90

$35

$39

$6

$2
 $114


74





FINANCIAL STATEMENTSDERIVATIVES AND HEDGING
PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)







Derivative Assets December 31, 2017 December 31, 2018
   Duke
   Duke
 Duke
 Duke
 Duke
     Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
   Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
 Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Commodity Contracts                                
Not Designated as Hedging Instruments                                
Current $34
 $2
 $2
 $1
 $1
 $1
 $27
 $2
 $35
 $2
 $2
 $2
 $
 $6
 $23
 $3
Noncurrent 1
 
 1
 1
 
 
 
 
 4
 1
 2
 2
 
 
 
 
Total Derivative Assets – Commodity Contracts $35
 $2
 $3
 $2
 $1
 $1
 $27
 $2
 $39
 $3
 $4
 $4
 $
 $6
 $23
 $3
Interest Rate Contracts                                
Designated as Hedging Instruments                                
Current $1
 $
 $
 $
 $
 $
 $
 $
 $1
 $
 $
 $
 $
 $
 $
 $
Noncurrent 15
 
 
 
 
 
 
 
 3
 
 
 
 
 
 
 
Not Designated as Hedging Instruments                
Current 2
 
 
 
 
 
 
 
Noncurrent 12
 
 
 
 
 
 
 
Total Derivative Assets – Interest Rate Contracts $16
 $
 $
 $
 $
 $
 $
 $
 $18
 $
 $
 $
 $
 $
 $
 $
Total Derivative Assets $51
 $2
 $3
 $2
 $1
 $1
 $27
 $2
 $57
 $3
 $4
 $4
 $
 $6
 $23
 $3
Derivative Liabilities December 31, 2017 December 31, 2018
   Duke
   Duke
 Duke
 Duke
 Duke
     Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
   Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
 Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Commodity Contracts                                
Not Designated as Hedging Instruments                                
Current $36
 $6
 $18
 $8
 $10
 $
 $
 $11
 $33
 $14
 $10
 $5
 $6
 $
 $
 $8
Noncurrent 146
 4
 10
 4
 
 
 
 131
 158
 10
 15
 6
 
 
 
 133
Total Derivative Liabilities – Commodity Contracts $182
 $10
 $28
 $12
 $10
 $
 $
 $142
 $191
 $24
 $25
 $11
 $6
 $
 $
 $141
Interest Rate Contracts                                
Designated as Hedging Instruments                                
Current $29
 $25
 $
 $
 $
 $
 $
 $
 $12
 $
 $
 $
 $
 $
 $
 $
Noncurrent 6
 
 
 
 
 
 
 
 6
 
 
 
 
 
 
 
Not Designated as Hedging Instruments                                
Current 1
 
 1
 
 
 1
 
 
 23
 9
 13
 11
 2
 1
 
 
Noncurrent 12
 
 7
 6
 2
 4
 
 
 10
 
 6
 5
 1
 4
 
 
Total Derivative Liabilities – Interest Rate Contracts $48
 $25
 $8
 $6
 $2
 $5
 $
 $
 $51
 $9
 $19
 $16
 $3
 $5
 $
 $
Total Derivative Liabilities $230
 $35
 $36
 $18
 $12
 $5
 $
 $142
 $242
 $33
 $44
 $27
 $9
 $5
 $
 $141

OFFSETTING ASSETS AND LIABILITIES
The following tables present the line items on the Condensed Consolidated Balance Sheets where derivatives are reported. Substantially all of Duke Energy's outstanding derivative contracts are subject to enforceable master netting arrangements. The gross amounts offset in the tables below show the effect of these netting arrangements on financial position, and include collateral posted to offset the net position. The amounts shown are calculated by counterparty. Accounts receivable or accounts payable may also be available to offset exposures in the event of bankruptcy. These amounts are not included in the tables below.


75


PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Derivative Assets June 30, 2018
    Duke
   Duke
 Duke
 Duke
 Duke
  
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Current                
Gross amounts recognized $64
 $3
 $4
 $3
 $1
 $9
 $45
 $2
Gross amounts offset (4) (2) (2) (2) 
 
 
 
Net amounts presented in Current Assets: Other $60
 $1
 $2
 $1
 $1
 $9
 $45
 $2
Noncurrent                
Gross amounts recognized $23
 $
 $1
 $1
 $
 $
 $
 $
Gross amounts offset (1) 
 (1) (1) 
 
 
 
Net amounts presented in Other Noncurrent Assets: Other $22
 $
 $
 $
 $
 $
 $
 $
Derivative Liabilities June 30, 2018
    Duke
   Duke
 Duke
 Duke
 Duke
  
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Current                
Gross amounts recognized $32
 $9
 $8
 $5
 $4
 $
 $
 $10
Gross amounts offset (4) (2) (2) (2) 
 
 
 
Net amounts presented in Current Liabilities: Other $28
 $7
 $6
 $3
 $4
 $
 $
 $10
Noncurrent                
Gross amounts recognized $181
 $10
 $27
 $16
 $1
 $4
 $
 $140
Gross amounts offset (2) (1) (1) (1) 
 
 
 
Net amounts presented in Other Noncurrent Liabilities: Other $179
 $9
 $26
 $15
 $1
 $4
 $
 $140
Derivative Assets December 31, 2017
    Duke
   Duke
 Duke
 Duke
 Duke
  
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Current                
Gross amounts recognized $35
 $2
 $2
 $1
 $1
 $1
 $27
 $2
Gross amounts offset 
 
 
 
 
 
 
 
Net amounts presented in Current Assets: Other $35
 $2
 $2
 $1
 $1
 $1
 $27
 $2
Noncurrent                
Gross amounts recognized $16
 $
 $1
 $1
 $
 $
 $
 $
Gross amounts offset 
 
 
 
 
 
 
 
Net amounts presented in Other Noncurrent Assets: Other $16
 $
 $1
 $1
 $
 $
 $
 $

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)






Derivative Liabilities December 31, 2017
    Duke
   Duke
 Duke
 Duke
 Duke
  
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Current                
Gross amounts recognized $66
 $31
 $19
 $8
 $10
 $1
 $
 $11
Gross amounts offset (3) (2) (2) (2) 
 
 
 
Net amounts presented in Current Liabilities: Other $63
 $29
 $17
 $6
 $10
 $1
 $
 $11
Noncurrent                
Gross amounts recognized $164
 $4
 $17
 $10
 $2
 $4
 $
 $131
Gross amounts offset (1) 
 (1) (1) 
 
 
 
Net amounts presented in Other Noncurrent Liabilities: Other $163
 $4
 $16
 $9
 $2
 $4
 $
 $131
FINANCIAL STATEMENTSDERIVATIVES AND HEDGING


Derivative Assets June 30, 2019
    Duke
   Duke
 Duke
 Duke
 Duke
  
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Current                
Gross amounts recognized $37
 $
 $
 $
 $
 $7
 $29
 $2
Gross amounts offset 
 
 
 
 
 
 
 
Net amounts presented in Current Assets: Other $37
 $
 $
 $
 $
 $7
 $29
 $2
Noncurrent                
Gross amounts recognized $1
 $
 $
 $
 $
 $
 $
 $
Gross amounts offset 
 
 
 
 
 
 
 
Net amounts presented in Other Noncurrent Assets: Other $1
 $
 $
 $
 $
 $
 $
 $
Derivative Liabilities June 30, 2019
    Duke
   Duke
 Duke
 Duke
 Duke
  
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Current                
Gross amounts recognized $154
 $85
 $55
 $26
 $29
 $1
 $2
 $7
Gross amounts offset (1) 
 (1) (1) 
 
 
 
Net amounts presented in Current Liabilities: Other $153
 $85
 $54
 $25
 $29
 $1
 $2
 $7
Noncurrent                
Gross amounts recognized $188
 $8
 $35
 $9
 $10
 $5
 $
 $107
Gross amounts offset 
 
 
 
 
 
 
 
Net amounts presented in Other Noncurrent Liabilities: Other $188
 $8
 $35
 $9
 $10
 $5
 $
 $107
Derivative Assets December 31, 2018
    Duke
   Duke
 Duke
 Duke
 Duke
  
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Current                
Gross amounts recognized $38
 $2
 $2
 $2
 $
 $6
 $23
 $3
Gross amounts offset (3) (2) (2) (2) 
 
 
 
Net amounts presented in Current Assets: Other $35
 $
 $
 $
 $
 $6
 $23
 $3
Noncurrent                
Gross amounts recognized $19
 $1
 $2
 $2
 $
 $
 $
 $
Gross amounts offset (3) (1) (2) (2) 
 
 
 
Net amounts presented in Other Noncurrent Assets: Other $16
 $
 $
 $
 $
 $
 $
 $


76




FINANCIAL STATEMENTSDERIVATIVES AND HEDGING


Derivative Liabilities December 31, 2018
    Duke
   Duke
 Duke
 Duke
 Duke
  
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions) Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Current                
Gross amounts recognized $68
 $23
 $23
 $16
 $8
 $1
 $
 $8
Gross amounts offset (4) (2) (2) (2) 
 
 
 
Net amounts presented in Current Liabilities: Other $64
 $21
 $21
 $14
 $8
 $1
 $
 $8
Noncurrent                
Gross amounts recognized $174
 $10
 $21
 $11
 $1
 $4
 $
 $133
Gross amounts offset (3) (1) (2) (2) 
 
 
 
Net amounts presented in Other Noncurrent Liabilities: Other $171
 $9
 $19
 $9
 $1
 $4
 $
 $133

OBJECTIVE CREDIT CONTINGENT FEATURES
Certain derivative contracts contain objective credit contingent features. These features include the requirement to post cash collateral or letters of credit if specific events occur, such as a credit rating downgrade below investment grade. The following tables show information with respect to derivative contracts that are in a net liability position and contain objective credit-risk-related payment provisions.
June 30, 2018June 30, 2019
  Duke
   Duke
 Duke
  Duke
   Duke
Duke
 Energy
 Progress
 Energy
 Energy
Duke
 Energy
 Progress
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
Energy
 Carolinas
 Energy
 Progress
Aggregate fair value of derivatives in a net liability position$36
 $16
 $20
 $19
 $1
$67
 $34
 $33
 $33
Fair value of collateral already posted
 
 
 
 

 
 
 
Additional cash collateral or letters of credit in the event credit-risk-related contingent features were triggered36
 16
 20
 19
 1
67
 34
 33
 33
December 31, 2017December 31, 2018
  Duke
   Duke
 Duke
  Duke
   Duke
Duke
 Energy
 Progress
 Energy
 Energy
Duke
 Energy
 Progress
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
Energy
 Carolinas
 Energy
 Progress
Aggregate fair value of derivatives in a net liability position$59
 $35
 $25
 $15
 $10
$44
 $19
 $25
 $25
Fair value of collateral already posted
 
 
 
 

 
 
 
Additional cash collateral or letters of credit in the event credit-risk-related contingent features were triggered59
 35
 25
 15
 10
44
 19
 25
 25

The Duke Energy Registrants have elected to offset cash collateral and fair values of derivatives. For amounts to be netted, the derivative and cash collateral must be executed with the same counterparty under the same master netting arrangement.
10.11.INVESTMENTS IN DEBT AND EQUITY SECURITIES
Duke Energy’s investments in debt and equity securities are primarily comprised of investments held in (i) the nuclear decommissioning trust fund (NDTF)NDTF at Duke Energy Carolinas, Duke Energy Progress and Duke Energy Florida, (ii) the grantor trusts at Duke Energy Progress, Duke Energy Florida and Duke Energy Indiana related to Other Post-Retirement Benefit Obligations (OPEB)OPEB plans and (iii) Bison. The Duke Energy Registrants classify investments in debt securities as available-for-sale (AFS)AFS and investments in equity securities as fair value through net income (FV-NI).FV-NI. 
For investments in debt securities classified as AFS, the unrealized gains and losses are included in other comprehensive income until realized, at which time, they are reported through net income. For investments in equity securities classified as FV-NI, both realized and unrealized gains and losses are reported through net income. Substantially all of Duke Energy’s investments in debt and equity securities qualify for regulatory accounting, and accordingly, all associated realized and unrealized gains and losses on these investments are deferred as a regulatory asset or liability.
Duke Energy classifies the majority of investments in debt and equity securities as long term, unless otherwise noted.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Investment Trusts
The investments within the NDTF investments and the Duke Energy Progress, Duke Energy Florida and Duke Energy Indiana grantor trusts (Investment Trusts)Investment Trusts are managed by independent investment managers with discretion to buy, sell and invest pursuant to the objectives set forth by the trust agreements. The Duke Energy Registrants have limited oversight of the day-to-day management of these investments. As a result, the ability to hold investments in unrealized loss positions is outside the control of the Duke Energy Registrants. Accordingly, all unrealized losses associated with debt securities within the Investment Trusts are considered OTTIs and are recognized immediately and deferred to regulatory accounts where appropriate.

77




FINANCIAL STATEMENTSINVESTMENTS IN DEBT AND EQUITY SECURITIES


Other AFS Securities
Unrealized gains and losses on all other AFS securities are included in other comprehensive income until realized, unless it is determined the carrying value of an investment is other-than-temporarily impaired. The Duke Energy Registrants analyze all investment holdings each reporting period to determine whether a decline in fair value should be considered other-than-temporary. If an OTTI exists, the unrealized credit loss is included in earnings. There were no material credit losses as of June 30, 2018,2019, and December 31, 2017.2018.
Other Investments amounts are recorded in Other within Other Noncurrent Assets on the Condensed Consolidated Balance Sheets.
DUKE ENERGY
The following table presents the estimated fair value of investments in debt and equity securities; equity investments are classified as FV-NI and debt investments are classified as AFS.
 June 30, 2019 December 31, 2018
 Gross
 Gross
   Gross
 Gross
  
 Unrealized
 Unrealized
 Estimated
 Unrealized
 Unrealized
 Estimated
 Holding
 Holding
 Fair
 Holding
 Holding
 Fair
(in millions)Gains
 Losses
 Value
 Gains
 Losses
 Value
NDTF           
Cash and cash equivalents$
 $
 $114
 $
 $
 $88
Equity securities3,076
 36
 5,178
 2,402
 95
 4,475
Corporate debt securities30
 1
 571
 4
 13
 566
Municipal bonds10
 
 318
 1
 4
 353
U.S. government bonds34
 1
 1,270
 14
 12
 1,076
Other debt securities3
 1
 152
 
 2
 148
Total NDTF Investments$3,153
 $39
 $7,603
 $2,421
 $126
 $6,706
Other Investments           
Cash and cash equivalents$
 $
 $49
 $
 $
 $22
Equity securities49
 
 112
 36
 1
 99
Corporate debt securities2
 
 60
 
 2
 60
Municipal bonds3
 1
 90
 
 1
 85
U.S. government bonds2
 
 51
 1
 
 45
Other debt securities
 
 65
 
 1
 58
Total Other Investments$56
 $1
 $427
 $37
 $5
 $369
Total Investments$3,209
 $40
 $8,030
 $2,458
 $131
 $7,075

 
June 30, 2018(a)
 December 31, 2017
 Gross
 Gross
   Gross
 Gross
  
 Unrealized
 Unrealized
 Estimated
 Unrealized
 Unrealized
 Estimated
 Holding
 Holding
 Fair
 Holding
 Holding
 Fair
(in millions)Gains
 Losses
 Value
 Gains
 Losses
 Value
NDTF           
Cash and cash equivalents$
 $
 $116
 $
 $
 $115
Equity securities2,837
 40
 4,988
 2,805
 27
 4,914
Corporate debt securities5
 12
 560
 17
 2
 570
Municipal bonds2
 4
 341
 4
 3
 344
U.S. government bonds7
 20
 991
 11
 7
 1,027
Other debt securities
 3
 128
 
 1
 118
Total NDTF Investments$2,851
 $79
 $7,124
 $2,837
 $40
 $7,088
Other Investments           
Cash and cash equivalents$
 $
 $15
 $
 $
 $15
Equity securities46
 
 109
 59
 
 123
Corporate debt securities
 1
 68
 1
 
 57
Municipal bonds1
 1
 87
 2
 1
 83
U.S. government bonds
 1
 52
 
 
 41
Other debt securities
 1
 45
 
 1
 44
Total Other Investments$47
 $4
 $376
 $62
 $2
 $363
Total Investments$2,898
 $83
 $7,500
 $2,899
 $42
 $7,451
(a)
Where regulatory accounting is applied, realized and unrealized gains and losses are deferred as regulatory assets or liabilities, and there is no impact to net income or other comprehensive income until the gain or loss is amortized or collected.
The table below summarizes the maturity date for debt securities.
(in millions)June 30, 2018
Due in one year or less$89
Due after one through five years518
Due after five through 10 years543
Due after 10 years1,122
Total$2,272

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Realized gains and losses, which were determined on a specific identification basis, from sales of FV-NI and AFS securities for the three and six months endedJune 30, 2018,2019, and from sales of AFS securities for the three and six months ended June 30, 2017,2018, were as follows.
 Three Months Ended Six Months Ended
(in millions)June 30, 2019 June 30, 2018 June 30, 2019 June 30, 2018
FV-NI:       
 Realized gains$66
 $47
 $101
 $66
 Realized losses63
 31
 93
 44
AFS:       
 Realized gains47
 5
 57
 10
 Realized losses36
 12
 47
 25


78

 Three Months Ended Six Months Ended
(in millions)June 30, 2018 June 30, 2018
FV-NI:   
 Realized gains$47
 $66
 Realized losses31
 44
AFS:   
 Realized gains5
 10
 Realized losses12
 25



 Three Months Ended Six Months Ended
(in millions)June 30, 2017 June 30, 2017
Realized gains$40
 $133
Realized losses37
 99
FINANCIAL STATEMENTSINVESTMENTS IN DEBT AND EQUITY SECURITIES


DUKE ENERGY CAROLINAS
The following table presents the estimated fair value of investments in debt and equity securities; equity investments are classified as FV-NI and debt investments are classified as AFS.
 June 30, 2019 December 31, 2018
 Gross
 Gross
   Gross
 Gross
  
 Unrealized
 Unrealized
 Estimated
 Unrealized
 Unrealized
 Estimated
 Holding
 Holding
 Fair
 Holding
 Holding
 Fair
(in millions)Gains
 Losses
 Value
 Gains
 Losses
 Value
NDTF           
Cash and cash equivalents$
 $
 $41
 $
 $
 $29
Equity securities1,671
 9
 2,883
 1,309
 54
 2,484
Corporate debt securities18
 1
 360
 2
 9
 341
Municipal bonds2
 
 63
 
 1
 81
U.S. government bonds17
 1
 556
 5
 8
 475
Other debt securities3
 1
 141
 
 2
 143
Total NDTF Investments$1,711
 $12

$4,044
 $1,316
 $74
 $3,553

 
June 30, 2018(a)
 December 31, 2017
 Gross
 Gross
   Gross
 Gross
  
 Unrealized
 Unrealized
 Estimated
 Unrealized
 Unrealized
 Estimated
 Holding
 Holding
 Fair
 Holding
 Holding
 Fair
(in millions)Gains
 Losses
 Value
 Gains
 Losses
 Value
NDTF           
Cash and cash equivalents$
 $
 $32
 $
 $
 $32
Equity securities1,544
 23
 2,732
 1,531
 12
 2,692
Corporate debt securities2
 8
 347
 9
 2
 359
Municipal bonds1
 1
 72
 
 1
 60
U.S. government bonds2
 12
 474
 3
 4
 503
Other debt securities
 3
 124
 
 1
 112
Total NDTF Investments$1,549
 $47

$3,781
 $1,543
 $20
 $3,758
(a)
Where regulatory accounting is applied, realized and unrealized gains and losses are deferred as regulatory assets or liabilities, and there is no impact to net income or other comprehensive income until the gain or loss is amortized or collected.
The table below summarizes the maturity date for debt securities.
(in millions)June 30, 2018
Due in one year or less$12
Due after one through five years163
Due after five through 10 years286
Due after 10 years556
Total$1,017

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Realized gains and losses, which were determined on a specific identification basis, from sales of FV-NI and AFS securities for the three and six months ended June 30, 2018,2019, and from sales of AFS securities for the three and six months ended June 30, 2017,2018, were as follows.
 Three Months Ended Six Months Ended
(in millions)June 30, 2019 June 30, 2018 June 30, 2019 June 30, 2018
FV-NI:       
 Realized gains$44
 $26
 $67
 $36
 Realized losses48
 17
 69
 22
AFS:       
 Realized gains16
 4
 25
 9
 Realized losses11
 8
 21
 18
 Three Months Ended Six Months Ended
(in millions)June 30, 2018 June 30, 2018
FV-NI:   
 Realized gains$26
 $36
 Realized losses17
 22
AFS:   
 Realized gains4
 9
 Realized losses8
 18
 Three Months Ended Six Months Ended
(in millions)June 30, 2017 June 30, 2017
Realized gains$24
 $90
Realized losses23
 63

PROGRESS ENERGY
The following table presents the estimated fair value of investments in debt and equity securities; equity investments are classified as FV-NI and debt investments are classified as AFS.
 June 30, 2019 December 31, 2018
 Gross
 Gross
   Gross
 Gross
  
 Unrealized
 Unrealized
 Estimated
 Unrealized
 Unrealized
 Estimated
 Holding
 Holding
 Fair
 Holding
 Holding
 Fair
(in millions)Gains
 Losses
 Value
 Gains
 Losses
 Value
NDTF           
Cash and cash equivalents$
 $
 $73
 $
 $
 $59
Equity securities1,405
 27
 2,295
 1,093
 41
 1,991
Corporate debt securities12
 
 211
 2
 4
 225
Municipal bonds8
 
 255
 1
 3
 272
U.S. government bonds17
 
 714
 9
 4
 601
Other debt securities
 
 11
 
 
 5
Total NDTF Investments$1,442
 $27
 $3,559
 $1,105
 $52
 $3,153
Other Investments           
Cash and cash equivalents$
 $
 $47
 $
 $
 $17
Municipal bonds3
 
 50
 
 
 47
Total Other Investments$3
 $
 $97
 $
 $
 $64
Total Investments$1,445
 $27
 $3,656
 $1,105
 $52
 $3,217


79




 
June 30, 2018(a)
 December 31, 2017
 Gross
 Gross
   Gross
 Gross
  
 Unrealized
 Unrealized
 Estimated
 Unrealized
 Unrealized
 Estimated
 Holding
 Holding
 Fair
 Holding
 Holding
 Fair
(in millions)Gains
 Losses
 Value
 Gains
 Losses
 Value
NDTF           
Cash and cash equivalents$
 $
 $84
 $
 $
 $83
Equity securities1,293
 17
 2,256
 1,274
 15
 2,222
Corporate debt securities3
 4
 213
 8
 
 211
Municipal bonds1
 3
 269
 4
 2
 284
U.S. government bonds5
 8
 517
 8
 3
 524
Other debt securities
 
 4
 
 
 6
Total NDTF Investments$1,302
 $32
 $3,343
 $1,294
 $20
 $3,330
Other Investments           
Cash and cash equivalents$
 $
 $11
 $
 $
 $12
Municipal bonds1
 
 47
 2
 
 47
Total Other Investments$1
 $
 $58
 $2
 $
 $59
Total Investments$1,303
 $32
 $3,401
 $1,296
 $20
 $3,389
(a)FINANCIAL STATEMENTS
Where regulatory accounting is applied, realized and unrealized gains and losses are deferred as regulatory assets or liabilities, and there is no impact to net income or other comprehensive income until the gain or loss is amortized or collected.
INVESTMENTS IN DEBT AND EQUITY SECURITIES
The table below summarizes the maturity date for debt securities.

(in millions)June 30, 2018
Due in one year or less$69
Due after one through five years286
Due after five through 10 years207
Due after 10 years488
Total$1,050


PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Realized gains and losses, which were determined on a specific identification basis, from sales of FV-NI and AFS securities for the three and six months endedJune 30, 2018,2019, and from sales of AFS securities for the three and six months ended June 30, 2017,2018, were as follows.
 Three Months EndedSix Months Ended
(in millions)June 30, 2018 June 30, 2018
FV-NI:   
 Realized gains$21
 $30
 Realized losses14
 22
AFS:   
 Realized gains1
 1
 Realized losses4
 7
Three Months Ended Six Months EndedThree Months EndedSix Months Ended
(in millions)June 30, 2017 June 30, 2017June 30, 2019 June 30, 2018 June 30, 2019 June 30, 2018
FV-NI:       
Realized gains$15
 $42
$22
 $21
 $34
 $30
Realized losses14
 35
15
 14
 24
 22
AFS:       
Realized gains30
 1
 31
 1
Realized losses25
 4
 26
 7
DUKE ENERGY PROGRESS
The following table presents the estimated fair value of investments in debt and equity securities; equity investments are classified as FV-NI and debt investments are classified as AFS.
 June 30, 2019 December 31, 2018
 Gross
 Gross
   Gross
 Gross
  
 Unrealized
 Unrealized
 Estimated
 Unrealized
 Unrealized
 Estimated
 Holding
 Holding
 Fair
 Holding
 Holding
 Fair
(in millions)Gains
 Losses
 Value
 Gains
 Losses
 Value
NDTF           
Cash and cash equivalents$
 $
 $42
 $
 $
 $46
Equity securities1,092
 24
 1,886
 833
 30
 1,588
Corporate debt securities12
 
 211
 2
 3
 171
Municipal bonds8
 
 255
 1
 3
 271
U.S. government bonds16
 
 429
 6
 3
 415
Other debt securities
 
 11
 
 
 3
Total NDTF Investments$1,128
 $24
 $2,834
 $842
 $39
 $2,494
Other Investments           
Cash and cash equivalents$
 $
 $2
 $
 $
 $6
Total Other Investments$
 $
 $2
 $
 $
 $6
Total Investments$1,128
 $24
 $2,836
 $842
 $39
 $2,500

 
June 30, 2018(a)
 December 31, 2017
 Gross
 Gross
   Gross
 Gross
  
 Unrealized
 Unrealized
 Estimated
 Unrealized
 Unrealized
 Estimated
 Holding
 Holding
 Fair
 Holding
 Holding
 Fair
(in millions)Gains
 Losses
 Value
 Gains
 Losses
 Value
NDTF           
Cash and cash equivalents$
 $
 $46
 $
 $
 $50
Equity securities995
 13
 1,819
 980
 12
 1,795
Corporate debt securities2
 3
 153
 6
 
 149
Municipal bonds1
 3
 268
 4
 2
 283
U.S. government bonds4
 6
 339
 5
 2
 310
Other debt securities
 
 2
 
 
 4
Total NDTF Investments$1,002
 $25
 $2,627
 $995
 $16
 $2,591
Other Investments           
Cash and cash equivalents$
 $
 $1
 $
 $
 $1
Total Other Investments$
 $
 $1
 $
 $
 $1
Total Investments$1,002
 $25
 $2,628
 $995
 $16
 $2,592
(a)
Where regulatory accounting is applied, realized and unrealized gains and losses are deferred as regulatory assets or liabilities, and there is no impact to net income or other comprehensive income until the gain or loss is amortized or collected.
The table below summarizes the maturity date for debt securities.
(in millions)June 30, 2018
Due in one year or less$24
Due after one through five years214
Due after five through 10 years150
Due after 10 years374
Total$762

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Realized gains and losses, which were determined on a specific identification basis, from sales of FV-NI and AFS securities for the three and six months endedJune 30, 2018,2019, and from sales of AFS securities for the three and six months ended June 30, 2017,2018, were as follows.
 Three Months EndedSix Months Ended
(in millions)June 30, 2019 June 30, 2018 June 30, 2019 June 30, 2018
FV-NI:       
Realized gains$7
 $17
 $17
 $25
Realized losses7
 12
 15
 20
AFS:       
 Realized gains1
 1
 2
 1
 Realized losses1
 3
 2
 5


80

 Three Months EndedSix Months Ended
(in millions)June 30, 2018 June 30, 2018
FV-NI:   
Realized gains$17
 $25
Realized losses12
 20
AFS:   
 Realized gains1
 1
 Realized losses3
 5



 Three Months Ended Six Months Ended
(in millions)June 30, 2017 June 30, 2017
Realized gains$11
 $35
Realized losses11
 30
FINANCIAL STATEMENTSINVESTMENTS IN DEBT AND EQUITY SECURITIES


DUKE ENERGY FLORIDA
The following table presents the estimated fair value of investments in debt and equity securities; equity investments are classified as FV-NI and debt investments are classified as AFS.
June 30, 2018(a)
 December 31, 2017June 30, 2019 December 31, 2018
Gross
 Gross
   Gross
 Gross
  Gross
 Gross
   Gross
 Gross
  
Unrealized
 Unrealized
 Estimated
 Unrealized
 Unrealized
 Estimated
Unrealized
 Unrealized
 Estimated
 Unrealized
 Unrealized
 Estimated
Holding
 Holding
 Fair
 Holding
 Holding
 Fair
Holding
 Holding
 Fair
 Holding
 Holding
 Fair
(in millions)Gains
 Losses
 Value
 Gains
 Losses
 Value
Gains
 Losses
 Value
 Gains
 Losses
 Value
NDTF                      
Cash and cash equivalents$
 $
 $38
 $
 $
 $33
$
 $
 $31
 $
 $
 $13
Equity securities298
 4
 437
 294
 3
 427
313
 3
 409
 260
 11
 403
Corporate debt securities1
 1
 60
 2
 
 62

 
 
 
 1
 54
Municipal bonds
 
 1
 
 
 1

 
 
 
 
 1
U.S. government bonds1
 2
 178
 3
 1
 214
1
 
 285
 3
 1
 186
Other debt securities
 
 2
 
 
 2

 
 
 
 
 2
Total NDTF Investments(b)(a)
$300
 $7
 $716
 $299
 $4
 $739
$314
 $3
 $725
 $263
 $13
 $659
Other Investments                      
Cash and cash equivalents$
 $
 $1
 $
 $
 $1
$
 $
 $2
 $
 $
 $1
Municipal bonds1
 
 47
 2
 
 47
3
 
 50
 
 
 47
Total Other Investments$1
 $
 $48
 $2
 $
 $48
$3
 $
 $52
 $
 $
 $48
Total Investments$301
 $7
 $764
 $301
 $4
 $787
$317
 $3
 $777
 $263
 $13
 $707
(a)
Where regulatory accounting is applied, realized and unrealized gains and losses are deferred as regulatory assets or liabilities, and there is no impact to net income or other comprehensive income until the gain or loss is amortized or collected.
(b)During the six months ended June 30, 2018,2019, Duke Energy Florida continued to receive reimbursements from the NDTF for costs related to ongoing decommissioning activity of the Crystal River Unit 3 nuclear plant.3.
The table below summarizes the maturity date for debt securities.
(in millions)June 30, 2018
Due in one year or less$45
Due after one through five years72
Due after five through 10 years57
Due after 10 years114
Total$288

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Realized gains and losses, which were determined on a specific identification basis, from sales of FV-NI and AFS securities for the three and six months endedJune 30, 2018,2019, and from sales of AFS securities for the three and six months ended June 30, 2017,2018, were as follows.
 Three Months EndedSix Months Ended
(in millions)June 30, 2019 June 30, 2018 June 30, 2019 June 30, 2018
FV-NI:       
Realized gains$15
 $4
 $17
 $5
Realized losses8
 2
 9
 2
AFS:       
 Realized gains29
 
 29
 
 Realized losses24
 1
 24
 2
 Three Months EndedSix Months Ended
(in millions)June 30, 2018 June 30, 2018
FV-NI:   
Realized gains$4
 $5
Realized losses2
 2
AFS:   
 Realized gains
 
 Realized losses1
 2
 Three Months EndedSix Months Ended
(in millions)June 30, 2017 June 30, 2017
Realized gains$4
 $7
Realized losses3
 5

DUKE ENERGY INDIANA
The following table presents the estimated fair value of investments in debt and equity securities; equity investments are measured at FV-NI and debt investments are classified as AFS.
 June 30, 2019 December 31, 2018
 Gross
 Gross
   Gross
 Gross
  
 Unrealized
 Unrealized
 Estimated
 Unrealized
 Unrealized
 Estimated
 Holding
 Holding
 Fair
 Holding
 Holding
 Fair
(in millions)Gains
 Losses
 Value
 Gains
 Losses
 Value
Investments           
Equity securities$37
 $
 $74
 $29
 $
 $67
Corporate debt securities
 
 7
 
 
 8
Municipal bonds
 1
 34
 
 1
 33
U.S. government bonds
 
 1
 
 
 
Total Investments$37
 $1
 $116
 $29
 $1
 $108
 
June 30, 2018(a)
 December 31, 2017
 Gross
 Gross
   Gross
 Gross
  
 Unrealized
 Unrealized
 Estimated
 Unrealized
 Unrealized
 Estimated
 Holding
 Holding
 Fair
 Holding
 Holding
 Fair
(in millions)Gains
 Losses
 Value
 Gains
 Losses
 Value
Investments           
Equity securities$36
 $
 $74
 $49
 $
 $97
Corporate debt securities
 
 8
 
 
 3
Municipal bonds
 1
 33
 
 1
 28
Total Investments$36
 $1
 $115
 $49
 $1
 $128
(a)
Realized and unrealized gains and losses where regulatory accounting is applied are deferred as regulatory assets or liabilities, and there is no impact to net income or other comprehensive income until the gain or loss is amortized or collected.
The table below summarizes the maturity date for debt securities.
(in millions)June 30, 2018
Due in one year or less$3
Due after one through five years20
Due after five through 10 years4
Due after 10 years14
Total$41

Realized gains and losses, which were determined on a specific identification basis, from sales of FV-NI and AFS securities for the three and six months ended June 30, 2018,2019, and from sales of AFS securities for the three and six months ended June 30, 2017,2018, were insignificant.

81




FINANCIAL STATEMENTSINVESTMENTS IN DEBT AND EQUITY SECURITIES


DEBT SECURITY MATURITIES
The table below summarizes the maturity date for debt securities.
 June 30, 2019
   Duke
   Duke
 Duke
 Duke
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Indiana
Due in one year or less$365
 $43
 $315
 $29
 $286
 $4
Due after one through five years527
 213
 265
 257
 8
 15
Due after five through 10 years499
 242
 203
 192
 11
 4
Due after 10 years1,186
 622
 458
 428
 30
 19
Total$2,577

$1,120

$1,241

$906

$335

$42

11.12. FAIR VALUE MEASUREMENTS
Fair value is the exchange price to sell an asset or transfer a liability in an orderly transaction between market participants at the measurement date. The fair value definition focuses on an exit price versus the acquisition cost. Fair value measurements use market data or assumptions market participants would use in pricing the asset or liability, including assumptions about risk and the risks inherent in the inputs to the valuation technique. These inputs may be readily observable, corroborated by market data or generally unobservable. Valuation techniques maximize the use of observable inputs and minimize use of unobservable inputs. A midmarket pricing convention (the midpoint price between bid and ask prices) is permitted for use as a practical expedient.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Fair value measurements are classified in three levels based on the fair value hierarchy:
Level 1 – Unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date. An active market is one in which transactions for an asset or liability occur with sufficient frequency and volume to provide ongoing pricing information.
Level 2 – A fair value measurement utilizing inputs other than quoted prices included in Level 1 that are observable, either directly or indirectly, for an asset or liability. Inputs include (i) quoted prices for similar assets or liabilities in active markets, (ii) quoted prices for identical or similar assets or liabilities in markets that are not active and (iii) inputs other than quoted market prices that are observable for the asset or liability, suchhierarchy as interest rate curves and yield curves observable at commonly quoted intervals, volatilities and credit spreads. A Level 2 measurement cannot have more than an insignificant portion of its valuation based on unobservable inputs. Instruments in this category include non-exchange-traded derivatives, such as over-the-counter forwards, swaps and options; certain marketable debt securities; and financial instruments traded in less-than-active markets.
Level 3 – Any fair value measurement that includes unobservable inputs for more than an insignificant portion of the valuation. These inputs may be used with internally developed methodologies that result in management’s best estimate of fair value. Level 3 measurements may include longer-term instruments that extend into periods in which observable inputs are not available.
Not Categorizeddefined by GAAP. Certain investments are not categorized within the Fair Valuefair value hierarchy. These investments are measured at fair value using the net asset value (NAV)NAV per share practical expedient. The NAV is derived based on the investment cost, less any impairment, plus or minus changes resulting from observable price changes for an identical or similar investment of the same issuer.
Fair value accounting guidance permits entities to elect to measure certain financial instruments that are not required to be accounted for at fair value, such as equity method investments or the company’s own debt, at fair value. The Duke Energy Registrants have not elected to record any of these items at fair value.
Transfers between levels represent assets or liabilities that were previously (i) categorized at a higher level for which the inputs to the estimate became less observable or (ii) classified at a lower level for which the inputs became more observable during the period. The Duke Energy Registrant’s policy is to recognize transfers between levels of the fair value hierarchy at the end of the period. There were no transfers between levels during the three and six months ended June 30, 2018,2019, and 2017.2018.
Valuation methods of the primary fair value measurements disclosed below are as follows.
Investments in equity securities
The majority of investments in equity securities are valued using Level 1 measurements. Investments in equity securities are typically valued at the closing price in the principal active market as of the last business day of the quarter. Principal active markets for equity prices include published exchanges such as the New York Stock Exchange and Nasdaq Stock Market. Foreign equity prices are translated from their trading currency using the currency exchange rate in effect at the close of the principal active market. There was no after-hours market activity that was required to be reflected in the reported fair value measurements.
Investments in debt securities
Most investments in debt securities are valued using Level 2 measurements because the valuations use interest rate curves and credit spreads applied to the terms of the debt instrument (maturity and coupon interest rate) and consider the counterparty credit rating. If the market for a particular fixed-income security is relatively inactive or illiquid, the measurement is Level 3.
Commodity derivatives
Commodity derivatives with clearinghouses are classified as Level 1. Other commodity derivatives, including Piedmont's natural gas supply contracts, are primarily valued using internally developed discounted cash flow models that incorporate forward price, adjustments for liquidity (bid-ask spread) and credit or non-performance risk (after reflecting credit enhancements such as collateral), and are discounted to present value. Pricing inputs are derived from published exchange transaction prices and other observable data sources. In the absence of an active market, the last available price may be used. If forward price curves are not observable for the full term of the contract and the unobservable period had more than an insignificant impact on the valuation, the commodity derivative is classified as Level 3. In isolation, increases (decreases) in natural gas forward prices result in favorable (unfavorable) fair value adjustments for natural gas purchase contracts; and increases (decreases) in electricity forward prices result in unfavorable (favorable) fair value adjustments for electricity sales contracts. Duke Energy regularly evaluates and validates pricing inputs used to estimate the fair value of natural gas commodity contracts by a market participant price verification procedure. This procedure provides a comparison of internal forward commodity curves to market participant generated curves.

82




FINANCIAL STATEMENTSFAIR VALUE MEASUREMENTS

Interest rate derivatives
Most over-the-counter interest rate contract derivatives are valued using financial models that utilize observable inputs for similar instruments and are classified as Level 2. Inputs include forward interest rate curves, notional amounts, interest rates and credit quality of the counterparties.
Other fair value considerations
See Note 11 in Duke Energy's Annual Report on Form 10-K/A10-K for the year ended December 31, 2017,2018, for a discussion of the valuation of goodwill and intangible assets.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





DUKE ENERGY
The following tables provide recorded balances for assets and liabilities measured at fair value on a recurring basis on the Condensed Consolidated Balance Sheets. Derivative amounts in the tables below for all Duke Energy Registrants exclude cash collateral, which is disclosed in Note 9.10. See Note 1011 for additional information related to investments by major security type for the Duke Energy Registrants.
June 30, 2018June 30, 2019
(in millions)Total Fair Value
Level 1
Level 2
Level 3
Not Categorized
Total Fair Value
Level 1
Level 2
Level 3
Not Categorized
NDTF equity securities$4,988
$4,918
$
$
$70
$5,178
$5,119
$
$
$59
NDTF debt securities2,136
578
1,558


2,425
870
1,555


Other equity securities109
109



112
112



Other debt securities267
68
199


315
99
216


Derivative assets87
3
31
53

38
3

35

Total assets7,587
5,676
1,788
53
70
8,068
6,203
1,771
35
59
Derivative liabilities(213)(1)(62)(150)
(342)(12)(216)(114)
Net assets (liabilities)$7,374
$5,675
$1,726
$(97)$70
$7,726
$6,191
$1,555
$(79)$59
 December 31, 2018
(in millions)Total Fair Value
Level 1
Level 2
Level 3
Not Categorized
NDTF equity securities$4,475
$4,410
$
$
$65
NDTF debt securities2,231
576
1,655


Other equity securities99
99



Other debt securities270
67
203


Derivative assets57
4
25
28

Total assets7,132
5,156
1,883
28
65
Derivative liabilities(242)(11)(90)(141)
Net assets (liabilities)$6,890
$5,145
$1,793
$(113)$65
 December 31, 2017
(in millions)Total Fair Value
Level 1
Level 2
Level 3
Not Categorized
NDTF equity securities$4,914
$4,840
$
$
$74
NDTF debt securities2,174
635
1,539


Other equity securities123
123



Other debt securities241
57
184


Derivative assets51
3
20
28

Total assets7,503
5,658
1,743
28
74
Derivative liabilities(230)(2)(86)(142)
Net assets (liabilities)$7,273
$5,656
$1,657
$(114)$74

The following tables provide reconciliations of beginning and ending balances of assets and liabilities measured at fair value using Level 3 measurements. Amounts included in earnings for derivatives are primarily included in Cost of natural gas on the Duke Energy Registrants' Condensed Consolidated Statements of Operations and Comprehensive Income. Amounts included in changes of net assets on the Duke Energy Registrants' Condensed Consolidated Balance Sheets are included in regulatory assets or liabilities. All derivative assets and liabilities are presented on a net basis.
 Derivatives (net)
 Three Months Ended June 30, Six Months Ended June 30,
(in millions)2019
 2018
 2019
 2018
Balance at beginning of period$(115) $(124) $(113) $(114)
Purchases, sales, issuances and settlements:       
Purchases38
 56
 38
 56
Settlements(11) (15) (23) (29)
Total gains (losses) included on the Condensed Consolidated Balance Sheet9
 (14) 19
 (10)
Balance at end of period$(79) $(97) $(79) $(97)


83




FINANCIAL STATEMENTSFAIR VALUE MEASUREMENTS
 Three Months Ended June 30, 2018 Three Months Ended June 30, 2017
(in millions)Investments
 Derivatives (net)
 Total
 Investments
 Derivatives (net)
 Total
Balance at beginning of period$
 $(124) $(124) $5
 $(135) $(130)
Total pretax realized or unrealized gains included in comprehensive income
 
 
 1
 
 1
Purchases, sales, issuances and settlements:    
      
Purchases
 56
 56
 
 55
 55
Sales
 
 
 (6) 
 (6)
Settlements
 (15) (15) 
 (9) (9)
Total losses included on the Condensed Consolidated Balance Sheet
 (14) (14) 
 (2) (2)
Balance at end of period$
 $(97) $(97) $
 $(91) $(91)

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





 Six Months Ended June 30, 2018 Six Months Ended June 30, 2017
(in millions)Investments
 Derivatives (net)
 Total
 Investments
 Derivatives (net)
 Total
Balance at beginning of period$
 $(114) $(114) $5
 $(166) $(161)
Total pretax realized or unrealized gains included in comprehensive income
 
 
 1
 
 1
Purchases, sales, issuances and settlements:           
Purchases
 56
 56
 
 55
 55
Sales
 
 
 (6) 
 (6)
Settlements
 (29) (29) 
 (18) (18)
Total (losses) gains included on the Condensed Consolidated Balance Sheet
 (10) (10) 
 38
 38
Balance at end of period$
 $(97) $(97) $
 $(91) $(91)

DUKE ENERGY CAROLINAS
The following tables provide recorded balances for assets and liabilities measured at fair value on a recurring basis on the Condensed Consolidated Balance Sheets.
June 30, 2018June 30, 2019
(in millions)Total Fair Value
Level 1
Level 2
Not Categorized
Total Fair Value
Level 1
Level 2
Not Categorized
NDTF equity securities$2,732
$2,662
$
$70
$2,883
$2,824
$
$59
NDTF debt securities1,049
164
885

1,161
250
911

Derivative assets3

3

Total assets3,784
2,826
888
70
4,044
3,074
911
59
Derivative liabilities(19)
(19)
(93)
(93)
Net assets$3,765
$2,826
$869
$70
$3,951
$3,074
$818
$59
 December 31, 2018
(in millions)Total Fair Value
Level 1
Level 2
Not Categorized
NDTF equity securities$2,484
$2,419
$
$65
NDTF debt securities1,069
149
920

Derivative assets3

3

Total assets3,556
2,568
923
65
Derivative liabilities(33)
(33)
Net assets$3,523
$2,568
$890
$65
 December 31, 2017
(in millions)Total Fair Value
Level 1
Level 2
Not Categorized
NDTF equity securities$2,692
$2,618
$
$74
NDTF debt securities1,066
204
862

Derivative assets2

2

Total assets3,760
2,822
864
74
Derivative liabilities(35)(1)(34)
Net assets$3,725
$2,821
$830
$74
The following table provides a reconciliation of beginning and ending balances of assets and liabilities measured at fair value using Level 3 measurements.
 Investments
 Three Months Ended June 30, Six Months Ended June 30,
(in millions)2018
 2017
 2018
 2017
Balance at beginning of period$
 $3
 $
 $3
Total pretax realized or unrealized gains included in comprehensive income
 1
 
 1
Purchases, sales, issuances and settlements:       
Sales
 (4) 
 (4)
Balance at end of period$
 $
 $
 $

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)






PROGRESS ENERGY
The following tables provide recorded balances for assets and liabilities measured at fair value on a recurring basis on the Condensed Consolidated Balance Sheets.
 June 30, 2019 December 31, 2018
(in millions)Total Fair Value
Level 1
Level 2
 Total Fair Value
Level 1
Level 2
NDTF equity securities$2,295
$2,295
$
 $1,991
$1,991
$
NDTF debt securities1,264
620
644
 1,162
427
735
Other debt securities97
47
50
 64
17
47
Derivative assets


 4

4
Total assets3,656
2,962
694
 3,221
2,435
786
Derivative liabilities(90)
(90) (44)
(44)
Net assets$3,566
$2,962
$604
 $3,177
$2,435
$742
 June 30, 2018
(in millions)Total Fair Value
Level 1
Level 2
NDTF equity securities$2,256
$2,256
$
NDTF debt securities1,087
414
673
Other debt securities58
11
47
Derivative assets5

5
Total assets3,406
2,681
725
Derivative liabilities(35)
(35)
Net assets$3,371
$2,681
$690
 December 31, 2017
(in millions)Total Fair Value
Level 1
Level 2
NDTF equity securities$2,222
$2,222
$
NDTF debt securities1,108
431
677
Other debt securities59
12
47
Derivative assets3
1
2
Total assets3,392
2,666
726
Derivative liabilities(36)(1)(35)
Net assets$3,356
$2,665
$691

DUKE ENERGY PROGRESS
The following tables provide recorded balances for assets and liabilities measured at fair value on a recurring basis on the Condensed Consolidated Balance Sheets.
June 30, 2018June 30, 2019 December 31, 2018
(in millions)Total Fair Value
Level 1
Level 2
Total Fair Value
Level 1
Level 2
 Total Fair Value
Level 1
Level 2
NDTF equity securities$1,819
$1,819
$
$1,886
$1,886
$
 $1,588
$1,588
$
NDTF debt securities808
255
553
948
304
644
 906
294
612
Other debt securities1
1

2
2

 6
6

Derivative assets4
1
3



 4

4
Total assets2,632
2,076
556
2,836
2,192
644
 2,504
1,888
616
Derivative liabilities(21)
(21)(35)
(35) (27)
(27)
Net assets$2,611
$2,076
$535
$2,801
$2,192
$609
 $2,477
$1,888
$589

 December 31, 2017
(in millions)Total Fair Value
Level 1
Level 2
NDTF equity securities$1,795
$1,795
$
NDTF debt securities796
243
553
Other debt securities1
1

Derivative assets2
1
1
Total assets2,594
2,040
554
Derivative liabilities(18)(1)(17)
Net assets$2,576
$2,039
$537

84




FINANCIAL STATEMENTSFAIR VALUE MEASUREMENTS

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)






DUKE ENERGY FLORIDA
The following tables provide recorded balances for assets and liabilities measured at fair value on a recurring basis on the Condensed Consolidated Balance Sheets.
 June 30, 2019 December 31, 2018
(in millions)Total Fair Value
Level 1
Level 2
 Total Fair Value
Level 1
Level 2
NDTF equity securities$409
$409
$
 $403
$403
$
NDTF debt securities316
316

 256
133
123
Other debt securities52
2
50
 48
1
47
Total assets777
727
50
 707
537
170
Derivative liabilities(39)
(39) (9)
(9)
Net assets$738
$727
$11
 $698
$537
$161
 June 30, 2018
(in millions)Total Fair Value
Level 1
Level 2
NDTF equity securities$437
$437
$
NDTF debt securities279
159
120
Other debt securities48
1
47
Derivative assets1

1
Total assets765
597
168
Derivative liabilities(5)
(5)
Net assets$760
$597
$163
 December 31, 2017
(in millions)Total Fair Value
Level 1
Level 2
NDTF equity securities$427
$427
$
NDTF debt securities312
188
124
Other debt securities48
1
47
Derivative assets1

1
Total assets788
616
172
Derivative liabilities(12)
(12)
Net assets$776
$616
$160

DUKE ENERGY OHIO
The following table provides recorded balances for assets and liabilities measured at fair value on a recurring basis on the Condensed Consolidated Balance Sheets.
 June 30, 2018 December 31, 2017
(in millions)Total Fair Value
Level 2
Level 3
 Total Fair Value
Level 2
Level 3
Derivative assets$9
$
$9
 $1
$
$1
Derivative liabilities(4)(4)
 (5)(5)
Net assets (liabilities)$5
$(4)$9
 $(4)$(5)$1
The following table provides a reconciliation of beginningSheets were not material at June 30, 2019, and ending balances of assets and liabilities measured at fair value using Level 3 measurements.
 Derivatives (net)
 Three Months Ended June 30, Six Months Ended June 30,
(in millions)2018
 2017
 2018
 2017
Balance at beginning of period$1
 $1
 $1
 $5
Purchases, sales, issuances and settlements:       
Purchases7
 3
 7
 3
Settlements(1) (1) (1) (2)
Total gains (losses) included on the Condensed Consolidated Balance Sheet2
 
 2
 (3)
Balance at end of period$9
 $3
 $9
 $3

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





December 31, 2018.
DUKE ENERGY INDIANA
The following tables provide recorded balances for assets and liabilities measured at fair value on a recurring basis on the Condensed Consolidated Balance Sheets.
 June 30, 2019 December 31, 2018
(in millions)Total Fair Value
Level 1
Level 2
Level 3
 Total Fair Value
Level 1
Level 2
Level 3
Other equity securities$74
$74
$
$
 $67
$67
$
$
Other debt securities42

42

 41

41

Derivative assets29
1

28
 23
1

22
Total assets$145
$75
$42
$28
 $131
$68
$41
$22
Derivative liabilities(2)(2)

 



Net assets$143
$73
$42
$28
 $131
$68
$41
$22

 June 30, 2018
(in millions)Total Fair Value
Level 1
Level 2
Level 3
Other equity securities$74
$74
$
$
Other debt securities41

41

Derivative assets45
1

44
Total assets$160
$75
$41
$44
 December 31, 2017
(in millions)Total Fair Value
Level 1
Level 2
Level 3
Other equity securities$97
$97
$
$
Other debt securities31

31

Derivative assets27


27
Total assets$155
$97
$31
$27
The following table provides a reconciliation of beginning and ending balances of assets and liabilities measured at fair value using Level 3 measurements.
Derivatives (net)Derivatives (net)
Three Months Ended June 30, Six Months Ended June 30,Three Months Ended June 30, Six Months Ended June 30,
(in millions)2018
 2017
 2018
 2017
2019
 2018
 2019
 2018
Balance at beginning of period$7
 $9
 $27
 $16
$5
 $7
 $22
 $27
Purchases, sales, issuances and settlements:
      
      
Purchases49
 52
 49
 52
29
 49
 29
 49
Settlements(14) (9) (28) (16)(9) (14) (19) (28)
Total gains (losses) included on the Condensed Consolidated Balance Sheet2
 (1) (4) (1)3
 2
 (4) (4)
Balance at end of period$44
 $51
 $44
 $51
$28
 $44
 $28
 $44

85




FINANCIAL STATEMENTSFAIR VALUE MEASUREMENTS

PIEDMONT
The following tables provide recorded balances for assets and liabilities measured at fair value on a recurring basis on the Condensed Consolidated Balance Sheets.
 June 30, 2019 December 31, 2018
(in millions)Total Fair Value
Level 1
Level 3
 Total Fair Value
Level 1
Level 3
Derivative assets$2
$2
$
 $3
3

Derivative liabilities(114)
(114) (141)
(141)
Net (liabilities) assets$(112)$2
$(114) $(138)$3
$(141)

 June 30, 2018
(in millions)Total Fair Value
Level 1
Level 3
Derivative assets$2
$2
$
Derivative liabilities(150)
(150)
Net (liabilities) assets$(148)$2
$(150)
 December 31, 2017
(in millions)Total Fair Value
Level 1
Level 3
Other debt securities$1
$1
$
Derivative assets2
2

Total assets3
3

Derivative liabilities(142)
(142)
         Net (liabilities) assets$(139)$3
$(142)

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





The following table provides a reconciliation of beginning and ending balances of assets and liabilities measured at fair value using Level 3 measurements.
Derivatives (net)Derivatives (net)
Three Months Ended June 30, Six Months Ended June 30,Three Months Ended June 30, Six Months Ended June 30,
(in millions)2018
 2017
 2018
 2017
2019
 2018
 2019
 2018
Balance at beginning of period$(132) $(145) $(142) $(187)$(121) $(132) $(141) $(142)
Total (losses) gains and settlements(18) 
 (8) 42
Total gains (losses) and settlements7
 (18) 27
 (8)
Balance at end of period$(150) $(145) $(150) $(145)$(114) $(150) $(114) $(150)
QUANTITATIVE INFORMATION ABOUT UNOBSERVABLE INPUTS
The following tables include quantitative information about the Duke Energy Registrants' derivatives classified as Level 3.
June 30, 2018June 30, 2019
Fair Value    Fair Value    
Investment Type(in millions)Valuation TechniqueUnobservable InputRange(in millions)Valuation TechniqueUnobservable InputRange
Duke Energy Ohio 
     
    
Financial Transmission Rights (FTRs)$9
RTO auction pricingFTR price – per megawatt-hour (MWh)$0.67
-$3.32
FTRs$7
RTO auction pricingFTR price – per MWh$0.36
-$3.13
Duke Energy Indiana 
     
    
FTRs44
RTO auction pricingFTR price – per MWh(2.31)-11.01
28
RTO auction pricingFTR price – per MWh(0.59)-7.61
Piedmont          
Natural gas contracts(150)Discounted cash flowForward natural gas curves – price per million British thermal unit (MMBtu)1.88
-3.42
(114)Discounted cash flowForward natural gas curves – price per MMBtu1.96
-3.21
Duke Energy          
Total Level 3 derivatives$(97)    $(79)    
December 31, 2017December 31, 2018
Fair Value    Fair Value    
Investment Type(in millions)Valuation TechniqueUnobservable InputRange(in millions)Valuation TechniqueUnobservable InputRange
Duke Energy Ohio 
     
    
FTRs$1
RTO auction pricingFTR price – per MWh$0.07
-$1.41
$6
RTO auction pricingFTR price – per MWh$1.19
-$4.59
Duke Energy Indiana 
     
    
FTRs27
RTO auction pricingFTR price – per MWh(0.77)-7.44
22
RTO auction pricingFTR price – per MWh(2.07)-8.27
Piedmont          
Natural gas contracts(142)Discounted cash flowForward natural gas curves – price per MMBtu2.10
-2.88
(141)Discounted cash flowForward natural gas curves – price per MMBtu1.87
-2.95
Duke Energy          
Total Level 3 derivatives$(114)    $(113)    


86




FINANCIAL STATEMENTSFAIR VALUE MEASUREMENTS


PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





OTHER FAIR VALUE DISCLOSURES
The fair value and book value of long-term debt, including current maturities, is summarized in the following table. Estimates determined are not necessarily indicative of amounts that could have been settled in current markets. Fair value of long-term debt uses Level 2 measurements.
 June 30, 2019 December 31, 2018
(in millions)Book Value
 Fair Value
 Book Value
 Fair Value
Duke Energy(a)
$57,040
 $60,667
 $54,529
 $54,534
Duke Energy Carolinas10,964
 12,300
 10,939
 11,471
Progress Energy19,199
 21,408
 18,911
 19,885
Duke Energy Progress9,049
 9,707
 8,204
 8,300
Duke Energy Florida7,213
 8,173
 7,321
 7,742
Duke Energy Ohio2,509
 2,779
 2,165
 2,239
Duke Energy Indiana3,723
 4,363
 3,782
 4,158
Piedmont2,384
 2,576
 2,138
 2,180
 June 30, 2018 December 31, 2017
(in millions)Book Value
 Fair Value
 Book Value
 Fair Value
Duke Energy(a)
$52,715
 $52,676
 $52,279
 $55,331
Duke Energy Carolinas10,394
 11,028
 10,103
 11,372
Progress Energy18,194
 19,357
 17,837
 20,000
Duke Energy Progress7,358
 7,527
 7,357
 7,992
Duke Energy Florida7,452
 7,945
 7,095
 7,953
Duke Energy Ohio2,066
 2,162
 2,067
 2,249
Duke Energy Indiana3,782
 4,223
 3,783
 4,464
Piedmont2,037
 2,087
 2,037
 2,209

(a)Book value of long-term debt includes $1.7$1.5 billion as of June 30, 2018,2019, and $1.6 billion as of December 31, 2017,2018, of unamortized debt discount and premium, net in purchase accounting adjustments related to the mergers with Progress Energy and Piedmont that are excluded from fair value of long-term debt.
At both June 30, 2018,2019, and December 31, 2017,2018, fair value of cash and cash equivalents, accounts and notes receivable, accounts payable, notes payable and commercial paper, and nonrecourse notes payable of VIEs are not materially different from their carrying amounts because of the short-term nature of these instruments and/or because the stated rates approximate market rates.
12.13. VARIABLE INTEREST ENTITIES
A VIE is an entity that is evaluated for consolidation using more than a simple analysis of voting control. The analysis to determine whether an entity is a VIE considers contracts with an entity, credit support for an entity, the adequacy of the equity investment of an entity and the relationship of voting power to the amount of equity invested in an entity. This analysis is performed either upon the creation of a legal entity or upon the occurrence of an event requiring re-evaluation, such as a significant change in an entity’s assets or activities. A qualitative analysis of control determines the party that consolidates a VIE. This assessment is based on (i) what party has the power to direct the activities of the VIE that most significantly impact its economic performance and (ii) what party has rights to receive benefits or is obligated to absorb losses that could potentially be significant to the VIE. The analysis of the party that consolidates a VIE is a continual reassessment.
CONSOLIDATED VIEs
The obligations of the consolidated VIEs discussed in the following paragraphs are nonrecourse to the Duke Energy registrants. The registrants have no requirement to provide liquidity to, purchase assets of or guarantee performance of these VIEs unless noted in the following paragraphs.
No financial support was provided to any of the consolidated VIEs during the six months ended June 30, 2018,2019, and the year ended December 31, 2017,2018, or is expected to be provided in the future that was not previously contractually required.
Receivables Financing – DERF / DEPR / DEFR
Duke Energy Receivables Finance Company, LLC (DERF), Duke Energy Progress Receivables, LLC (DEPR)DERF, DEPR and Duke Energy Florida Receivables, LLC (DEFR)DEFR are bankruptcy remote, special purpose subsidiaries of Duke Energy Carolinas, Duke Energy Progress and Duke Energy Florida, respectively. DERF, DEPR and DEFR are wholly owned limited liability companies with separate legal existence from their parent companies, and their assets are not generally available to creditors of their parent companies. On a revolving basis, DERF, DEPR and DEFR buy certain accounts receivable arising from the sale of electricity and related services from their parent companies.
DERF, DEPR and DEFR borrow amounts under credit facilities to buy these receivables. Borrowing availability from the credit facilities is limited to the amount of qualified receivables purchased. The sole source of funds to satisfy the related debt obligations is cash collections from the receivables. Amounts borrowed under the credit facilities are reflected on the Condensed Consolidated Balance Sheets as Long-Term Debt.
The most significant activity that impacts the economic performance of DERF, DEPR and DEFR are the decisions made to manage delinquent receivables. Duke Energy Carolinas, Duke Energy Progress and Duke Energy Florida are considered primary beneficiaries and consolidate DERF, DEPR and DEFR, respectively, as they make those decisions.
Receivables Financing – CRC
CRC is a bankruptcy remote, special purpose entity indirectly owned by Duke Energy. On a revolving basis, CRC buys certain accounts receivable arising from the sale of electricity, natural gas and related services from Duke Energy Ohio and Duke Energy Indiana. CRC borrows amounts under a credit facility to buy the receivables from Duke Energy Ohio and Duke Energy Indiana. Borrowing availability from the credit facility is limited to the amount of qualified receivables sold to CRC. The sole source of funds to satisfy the related debt obligation is cash collections from the receivables. Amounts borrowed under the credit facility are reflected on Duke Energy's Condensed Consolidated Balance Sheets as Long-Term Debt.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





The proceeds Duke Energy Ohio and Duke Energy Indiana receive from the sale of receivables to CRC are typicallyapproximately 75 percent cash and 25 percent in the form of a subordinated note from CRC. The subordinated note is a retained interest in the receivables sold. Depending on collection experience, additional equity infusions to CRC may be required by Duke Energy to maintain a minimum equity balance of $3 million.
CRC is considered a VIE because (i) equity capitalization is insufficient to support its operations, (ii) power to direct the activities that most significantly impact the economic performance of the entity are not performed by the equity holder and (iii) deficiencies in net worth of CRC are funded by Duke Energy. The most significant activities that impact the economic performance of CRC are decisions made to manage delinquent receivables. Duke Energy is considered the primary beneficiary and consolidates CRC as it makes these decisions. Neither Duke Energy Ohio nor Duke Energy Indiana consolidate CRC.

87




FINANCIAL STATEMENTSVARIABLE INTEREST ENTITIES


Receivables Financing – Credit Facilities
The following table summarizes the amounts and expiration dates of the credit facilities and associated restricted receivables described above.
 Duke Energy
   Duke Energy
 Duke Energy
 Duke Energy
   Carolinas
 Progress
 Florida
(in millions)CRC
 DERF
 DEPR
 DEFR
Expiration dateDecember 2020
 December 2020
 February 2021
 April 2021
Credit facility amount$350
 $475
 $325
 $250
Amounts borrowed at June 30, 2019328
 475
 325
 250
Amounts borrowed at December 31, 2018325
 450
 300
 225
Restricted Receivables at June 30, 2019484
 671
 518
 472
Restricted Receivables at December 31, 2018564
 699
 547
 357
 Duke Energy
   Duke Energy
 Duke Energy
 Duke Energy
   Carolinas
 Progress
 Florida
(in millions)CRC
 DERF
 DEPR
 DEFR
Expiration dateDecember 2020
 December 2020
 February 2021
 April 2021
Credit facility amount$325
 $450
 $300
 $225
Amounts borrowed at June 30, 2018325
 450
 300
 225
Amounts borrowed at December 31, 2017325
 450
 300
 225
Restricted Receivables at June 30, 2018498
 704
 568
 394
Restricted Receivables at December 31, 2017545
 640
 459
 317

Nuclear Asset-Recovery Bonds – DEFPF
Duke Energy Florida Project Finance, LLC (DEFPF)DEFPF is a bankruptcy remote, wholly owned special purpose subsidiary of Duke Energy Florida. DEFPF was formed in 2016 for the sole purpose of issuing nuclear asset-recovery bonds to finance Duke Energy Florida's unrecovered regulatory asset related to Crystal River Unit 3.
In June 2016, DEFPF issued senior secured bonds and used the proceeds to acquire nuclear asset-recovery property from Duke Energy Florida. The nuclear asset-recovery property acquired includes the right to impose, bill, collect and adjust a non-bypassable nuclear asset-recovery charge from all Duke Energy Florida retail customers until the bonds are paid in full and all financing costs have been recovered. The nuclear asset-recovery bonds are secured by the nuclear asset-recovery property, and cash collections from the nuclear asset-recovery charges are the sole source of funds to satisfy the debt obligation. The bondholders have no recourse to Duke Energy Florida.
DEFPF is considered a VIE primarily because the equity capitalization is insufficient to support its operations. Duke Energy Florida has the power to direct the significant activities of the VIE as described above, and therefore Duke Energy Florida is considered the primary beneficiary and consolidates DEFPF.
The following table summarizes the impact of DEFPF on Duke Energy Florida's Condensed Consolidated Balance Sheets.
(in millions)June 30, 2019
December 31, 2018
Receivables of VIEs$8
$5
Regulatory Assets: Current52
52
Current Assets: Other31
39
Other Noncurrent Assets: Regulatory assets1,019
1,041
Current Liabilities: Other10
10
Current maturities of long-term debt54
53
Long-Term Debt1,082
1,111
(in millions)June 30, 2018
December 31, 2017
Receivables of VIEs$7
$4
Regulatory Assets: Current51
51
Current Assets: Other31
40
Other Noncurrent Assets: Regulatory assets1,071
1,091
Current Liabilities: Other10
10
Current maturities of long-term debt53
53
Long-Term Debt1,136
1,164

Commercial Renewables
Certain of Duke Energy’s renewable energy facilities are VIEs due to Duke Energy issuing guarantees for debt service and operations and maintenance reserves in support of debt financings. Assets are restricted and cannot be pledged as collateral or sold to third parties without prior approval of debt holders. Additionally, Duke Energy has VIEs associated with tax equity arrangements entered into with third-party investors in order to finance the cost of solar energy systems eligible for tax credits. The activities that most significantly impactimpacted the economic performance of these renewable energy facilities were decisions associated with siting, negotiating PPAs engineering, procurement and constructionEPC agreements, and decisions associated with ongoing operations and maintenance-related activities. Duke Energy is considered the primary beneficiary and consolidates the entities as it is responsible for all of these decisions.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





The table below presents material balances reported on Duke Energy's Condensed Consolidated Balance Sheets related to renewables VIEs.
(in millions)June 30, 2019
December 31, 2018
Current Assets: Other$109
$123
Property, plant and equipment, cost4,419
4,007
Accumulated depreciation and amortization(769)(698)
Other Noncurrent Assets: Other289
261
Current maturities of long-term debt178
174
Long-Term Debt1,610
1,587
Other Noncurrent Liabilities: Asset Retirement Obligations108
106
Other Noncurrent Liabilities: Other222
212


88




(in millions)June 30, 2018
December 31, 2017
Current Assets: Other$168
$174
Property, plant and equipment, cost4,017
3,923
Accumulated depreciation and amortization(661)(591)
Other Noncurrent Assets: Other256
50
Current maturities of long-term debt175
170
Long-Term Debt1,605
1,700
Other Noncurrent Liabilities: Deferred income taxes
(148)
Other Noncurrent Liabilities: Other228
241
FINANCIAL STATEMENTSVARIABLE INTEREST ENTITIES


NON-CONSOLIDATED VIEs
The following tables summarize the impact of non-consolidated VIEs on the Condensed Consolidated Balance Sheets.
 June 30, 2019
 Duke Energy Duke
 Duke
 Pipeline
 Commercial
 Other
   Energy
 Energy
(in millions)Investments
 Renewables
 
VIEs 

 Total
 Ohio
 Indiana
Receivables from affiliated companies$
 $
 $
 $
 $45
 $81
Investments in equity method unconsolidated affiliates1,066
 187
 52
 1,305
 
 
Total assets$1,066
 $187
 $52
 $1,305
 $45
 $81
Taxes accrued(2) 
 
 (2) 
 
Other current liabilities
 
 4
 4
 
 
Deferred income taxes48
 
 
 48
 
 
Other noncurrent liabilities
 
 11
 11
 
 
Total liabilities$46
 $
 $15
 $61
 $
 $
Net assets$1,020
 $187
 $37
 $1,244
 $45
 $81

June 30, 2018December 31, 2018
Duke Energy Duke
 Duke
Duke Energy Duke
 Duke
Pipeline
 Commercial
 Other
   Energy
 Energy
Pipeline
 Commercial
 Other
   Energy
 Energy
(in millions)
Investments(a)

 Renewables
 
VIEs 

 Total
 Ohio
 Indiana
Investments
 Renewables
 VIEs
 Total
 Ohio
 Indiana
Receivables from affiliated companies$
 $
 $
 $
 $58
 $87
$
 $
 $
 $
 $93
 $118
Investments in equity method unconsolidated affiliates566
 192
 45
 803
 
 
822
 190
 48
 1,060
 
 
Total assets$566
 $192
 $45
 $803
 $58
 $87
$822
 $190
 $48
 $1,060
 $93
 $118
Taxes accrued1
 
 
 1
 
 
(1) 
 
 (1) 
 
Other current liabilities
 
 4
 4
 
 

 
 4
 4
 
 
Deferred income taxes10
 
 
 10
 
 
21
 
 
 21
 
 
Other noncurrent liabilities
 
 11
 11
 
 

 
 12
 12
 
 
Total liabilities$11
 $
 $15
 $26
 $
 $
$20

$

$16

$36

$

$
Net assets$555
 $192
 $30
 $777
 $58
 $87
$802
 $190
 $32
 $1,024
 $93
 $118
(a)See Pipeline Investments table below for further details regarding Investments in equity method unconsolidated affiliates.

 December 31, 2017
 Duke Energy Duke
 Duke
 Pipeline
 Commercial
 Other
   Energy
 Energy
(in millions)Investments
 Renewables
 VIEs
 Total
 Ohio
 Indiana
Receivables from affiliated companies$
 $
 $
 $
 $87
 $106
Investments in equity method unconsolidated affiliates697
 180
 42
 919
 
 
Other noncurrent assets17
 
 
 17
 
 
Total assets$714
 $180
 $42
 $936
 $87
 $106
Taxes accrued(29) 
 
 (29) 
 
Other current liabilities
 
 4
 4
 
 
Deferred income taxes42
 
 
 42
 
 
Other noncurrent liabilities
 
 12
 12
 
 
Total liabilities$13

$

$16

$29

$

$
Net assets$701
 $180
 $26
 $907
 $87
 $106
The Duke Energy Registrants are not aware of any situations where the maximum exposure to loss significantly exceeds the carrying values shown above except for the power purchase agreement with OVEC, which is discussed below, and various guarantees, someincluding Duke Energy's guarantee agreement to support its share of the ACP revolving credit facility. Duke Energy's maximum exposure to loss under the terms of the guarantee is $790 million, which are reflected inrepresents 47 percent of the table aboveoutstanding borrowings under the credit facility as Other noncurrent liabilities.of June 30, 2019. For more information on various guarantees, refer to Note 4.
Pipeline Investments
Duke Energy has investments in various joint ventures with pipeline projects currently under construction. These entities are considered VIEs due to having insufficient equity to finance their own activities without subordinated financial support. Duke Energy does not have the power to direct the activities that most significantly impact the economic performance, the obligation to absorb losses or the right to receive benefits of these VIEs and therefore does not consolidate these entities.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





The table below presents Duke Energy's ownership interest and investment balances in these joint ventures.
   VIE Investment Amount (in millions)
 Ownership June 30, December 31,
Entity NameInterest 2019 2018
ACP(a)
47% $1,041
 $797
Constitution24% 25
 25
Total  $1,066
 $822
   VIE Investment Amount (in millions)
 Ownership June 30, December 31,
Entity NameInterest 2018 2017
ACP47% $541
 $397
Sabal Trail(a)
7.5% 
 219
Constitution(b)
24% 25
 81
Total  $566
 $697

(a)AtDuke Energy evaluated this investment for impairment as of June 30, 2019, and December 31, 2017, Sabal Trail was considered a VIE due to having insufficient equity to finance their own activities without subordinated financial support. However, Sabal Trail is now a fully operational, well capitalized entity. As a result, Sabal Trail has sufficient equity to finance its own activities,2018, and determined that fair value approximated carrying value and therefore is no longer considered a VIE. Duke Energy's investment in Sabal Trailimpairment was $110 million at June 30, 2018.necessary.

89




(b)FINANCIAL STATEMENTSDuring the six months ended June 30, 2018, Duke Energy recorded an OTTI of $55 million related to Constitution within Equity in (losses) earnings of unconsolidated affiliates on Duke Energy's Condensed Consolidated Statements of Income. See Note 3 for additional information.VARIABLE INTEREST ENTITIES
In 2017, ACP executed a $3.4 billion revolving credit facility with a stated maturity date of October 2021. Duke Energy entered into a guarantee agreement to support its share of the ACP revolving credit facility. Duke Energy's maximum exposure to loss under the terms of the guarantee is $412 million, which represents 47 percent of the outstanding borrowings under the credit facility as of June 30, 2018.

Commercial Renewables
Duke Energy has investments in various renewable energy project entities. Some of these entities are VIEs due to Duke Energy issuing guarantees for debt service and operations and maintenance reserves in support of debt financings. Duke Energy does not consolidate these VIEs because power to direct and control key activities is shared jointly by Duke Energy and other owners.
Other VIEsPioneer
Duke Energy holds a 50 percent equity interest in Pioneer Transmission, LLC (Pioneer).Pioneer. Pioneer is considered a VIE due to having insufficient equity to finance its own activities without subordinated financial support. The activities that most significantly impact Pioneer's economic performance are decisions related to the development of new transmission facilities. The power to direct these activities is jointly and equally shared by Duke Energy and the other joint venture partner, American Electric Power; therefore, Duke Energy does not consolidate Pioneer.
OVEC
Duke Energy Ohio’s 9 percent ownership interest in OVEC is considered a non-consolidated VIE due to OVEC having insufficient equity to finance its activities without subordinated financial support. The activities that most significantly impact OVEC's economic performance include fuel strategy and supply activities and decisions associated with ongoing operations and maintenance-related activities. Duke Energy Ohio does not have the unilateral power to direct these activities, and therefore, does not consolidate OVEC.
As a counterparty to an inter-company power agreement (ICPA),ICPA, Duke Energy Ohio has a contractual arrangement to receive entitlements to capacity and energy from OVEC’s power plants through June 2040 commensurate with its power participation ratio, which is equivalent to Duke Energy Ohio's ownership interest. Costs, including fuel, operating expenses, fixed costs, debt amortization and interest expense, are allocated to counterparties to the ICPA based on their power participation ratio. The value of the ICPA is subject to variability due to fluctuation in power prices and changes in OVEC's cost of business. On March 31, 2018, FirstEnergy Solutions (FES),FES, a subsidiary of FirstEnergy and an ICPA counterparty with a power participation ratio of 4.85 percent, filed for Chapter 11 bankruptcy, which could increase costs allocated to the counterparties. On July 31, 2018, the bankruptcy court rejected the FES ICPA, which means OVEC is an unsecured creditor in the FES bankruptcy proceeding. Duke Energy Ohio cannot predict the impact of the bankruptcy filing on its OVEC interests. In addition, certain proposed environmental rulemaking could result in future increased OVEC cost allocations.
CRC
See discussion under Consolidated VIEs for additional information related to CRC.
Amounts included in Receivables from affiliated companies in the above table for Duke Energy Ohio and Duke Energy Indiana reflect their retained interest in receivables sold to CRC. These subordinated notes held by Duke Energy Ohio and Duke Energy Indiana are stated at fair value. Carrying values of retained interests are determined by allocating carrying value of the receivables between assets sold and interests retained based on relative fair value. The allocated bases of the subordinated notes are not materially different than their face value because (i) the receivables generally turn over in less than two months, (ii) credit losses are reasonably predictable due to the broad customer base and lack of significant concentration and (iii) the equity in CRC is subordinate to all retained interests and thus would absorb losses first. The hypothetical effect on fair value of the retained interests assuming both a 10 percent and a 20 percent unfavorable variation in credit losses or discount rates is not material due to the short turnover of receivables and historically low credit loss history. Interest accrues to Duke Energy Ohio and Duke Energy Indiana on the retained interests using the acceptable yield method. This method generally approximates the stated rate on the notes since the allocated basis and the face value are nearly equivalent. An impairment charge is recorded against the carrying value of both retained interests and purchased beneficial interest whenever it is determined that an OTTI has occurred.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Key assumptions used in estimating fair value are detailed in the following table.
 Duke Energy Ohio Duke Energy Indiana
 2018
 2017
 2018
 2017
Anticipated credit loss ratio0.5% 0.5% 0.3% 0.3%
Discount rate2.8% 2.1% 2.8% 2.1%
Receivable turnover rate13.6% 13.5% 10.8% 10.7%
The following table shows the gross and net receivables sold.
 Duke Energy Ohio Duke Energy Indiana
(in millions)June 30, 2019
 December 31, 2018
 June 30, 2019
 December 31, 2018
Receivables sold$210
 $269
 $314
 $336
Less: Retained interests45
 93
 81
 118
Net receivables sold$165
 $176
 $233
 $218

 Duke Energy Ohio Duke Energy Indiana
(in millions)June 30, 2018
 December 31, 2017
 June 30, 2018
 December 31, 2017
Receivables sold$227
 $273
 $312
 $312
Less: Retained interests58
 87
 87
 106
Net receivables sold$169
 $186
 $225
 $206
The following table shows sales and cash flows related to receivables sold.
 Duke Energy Ohio Duke Energy Indiana
 Three Months Ended Six Months Ended Three Months Ended Six Months Ended
 June 30, June 30, June 30, June 30,
(in millions)2019
 2018
 2019
 2018
 2019
 2018
 2019
 2018
Sales               
Receivables sold$429
 $461
 $1,004
 $1,028
 $676
 $692
 $1,410
 $1,386
Loss recognized on sale3
 3
 7
 6
 4
 4
 9
 7
Cash flows               
Cash proceeds from receivables sold$448
 $465
 $1,045
 $1,050
 $680
 $686
 $1,438
 $1,397
Collection fees received1
 1
 1
 1
 1
 1
 1
 1
Return received on retained interests2
 1
 4
 3
 2
 2
 5
 4
 Duke Energy Ohio Duke Energy Indiana
 Three Months Ended Six Months Ended Three Months Ended Six Months Ended
 June 30, June 30, June 30, June 30,
(in millions)2018
 2017
 2018
 2017
 2018
 2017
 2018
 2017
Sales               
Receivables sold$461
 $421
 $1,028
 $954
 $692
 $663
 $1,386
 $1,327
Loss recognized on sale3
 3
 6
 5
 4
 3
 7
 6
Cash flows               
Cash proceeds from receivables sold$465
 $428
 $1,050
 $987
 $686
 $658
 $1,397
 $1,351
Collection fees received1
 
 1
 
 1
 1
 1
 1
Return received on retained interests1
 1
 3
 2
 2
 1
 4
 3

Cash flows from sales of receivables are reflected within Operating Activities on Duke Energy Ohio’s and Duke Energy Indiana’s Condensed Consolidated Statements of Cash Flows.
Collection fees received in connection with servicing transferred accounts receivable are included in Operation, maintenance and other on Duke Energy Ohio’s and Duke Energy Indiana’s Condensed Consolidated Statements of Operations and Comprehensive Income. The loss recognized on sales of receivables is calculated monthly by multiplying receivables sold during the month by the required discount. The required discount is derived monthly utilizing a three-year weighted average formula that considers charge-off history, late charge history and turnover history on the sold receivables, as well as a component for the time value of money. The discount rate, or component for the time value of money, is the prior month-end LIBOR plus a fixed rate of 1.00 percent.
90

13. REVENUE

As described in Note 1, Duke Energy adopted Revenue from Contracts with Customers effective January 1, 2018, using the modified retrospective method of adoption, which does not require restatement of prior year reported results. No cumulative effect adjustment was recorded as the vast majority of Duke Energy’s revenues are at-will and without a defined contractual term. Additionally, comparative disclosures for 2018 operating results with the previous revenue recognition rules are not applicable as Duke Energy’s revenue recognition has not materially changed as a result of the new standard.
Duke Energy recognizes revenue consistent with amounts billed under tariff offerings or at contractually agreed upon rates based on actual physical delivery of electric or natural gas service, including estimated volumes delivered when billings have not yet occurred. As such, the majority of Duke Energy’s revenues have fixed pricing based on the contractual terms of the published tariffs, with variability in expected cash flows attributable to the customer’s volumetric demand and ultimate quantities of energy or natural gas supplied and used during the billing period. The stand-alone selling price of related sales are designed to support recovery of prudently incurred costs and an appropriate return on invested assets and are primarily governed by published tariff rates or contractual agreements approved by relevant regulatory bodies. As described in Note 1, certain excise taxes and franchise fees levied by state or local governments are required to be paid even if not collected from the customer. These taxes are recognized on a gross basis as part of revenues. Duke Energy elects to account for all other taxes net of revenues.
Performance obligations are satisfied over time as energy or natural gas is delivered and consumed with billings generally occurring monthly and related payments due within 30 days, depending on regulatory requirements. In no event does the timing between payment and delivery of the goods and services exceed one year. Using this output method for revenue recognition provides a faithful depiction of the transfer of electric and natural gas service as customers obtain control of the commodity and benefit from its use at delivery. Additionally, Duke Energy has an enforceable right to consideration for energy or natural gas delivered at any discrete point in time, and will recognize revenue at an amount that reflects the consideration to which Duke Energy is entitled for the energy or natural gas delivered.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





FINANCIAL STATEMENTSREVENUE
As described above, the majority of Duke Energy’s tariff revenues are at-will and, as such, related contracts with customers have an expected duration of one year or less and will not have future performance obligations for disclosure. Additionally, other long-term revenue streams, including wholesale contracts, generally provide services that are part of a single performance obligation, the delivery of electricity or natural gas. As such, other than material fixed consideration under long-term contracts, related disclosures for future performance obligations are also not applicable.

14. REVENUE
Duke Energy earns substantially all of its revenues through its reportable segments, Electric Utilities and Infrastructure, Gas Utilities and Infrastructure and Commercial Renewables.
Electric Utilities and Infrastructure
Electric Utilities and Infrastructure earns the majority of its revenues through retail and wholesale electric service through the generation, transmission, distribution and sale of electricity. Duke Energy generally provides retail and wholesale electric service customers with their full electric load requirements or with supplemental load requirements when the customer has other sources of electricity.
Retail electric service is generally marketed throughout Duke Energy's electric service territory through standard service offers. The standard service offers are through tariffs determined by regulators in Duke Energy's regulated service territory. Each tariff, which is assigned to customers based on customer class, has multiple components such as an energy charge, a demand charge, a basic facilities charge and applicable riders. Duke Energy considers each of these components to be aggregated into a single performance obligation for providing electric service, or in the case of distribution only customers in Duke Energy Ohio, for delivering electricity. Electricity is considered a single performance obligation satisfied over time consistent with the series guidance and is provided and consumed over the billing period (generally one month). Retail electric service is typically provided to at-will customers that can cancel service at any time, without a substantive penalty. Additionally, Duke Energy adheres to applicable regulatory requirements in each jurisdiction to ensure the collectability of amounts billed and appropriate mitigating procedures are followed when necessary. As such, revenue from contracts with customers for such contracts is equivalent to the electricity supplied and billed in that period (including unbilled estimates).
Wholesale electric service is generally provided under long-term contracts using cost-based pricing. FERC regulates costs that may be recovered from customers and the amount of return companies are permitted to earn. Wholesale contracts include both energy and demand charges. For full requirements contracts, Duke Energy considers both charges as a single performance obligation for providing integrated electric service. For contracts where energy and demand charges are considered separate performance obligations, energy and demand are each a distinct performance obligation under the series guidance and are satisfied as energy is delivered and stand-ready service is provided on a monthly basis. This service represents consumption over the billing period and revenue is recognized consistent with billings and unbilled estimates, which generally occur monthly. Contractual amounts owed are typically trued up annually based upon incurred costs in accordance with FERC published filings and the specific customer’s actual peak demand. Estimates of variable consideration related to potential additional billings or refunds owed are updated quarterly.
The majority of wholesale revenues are full requirements contracts where the customers purchase the substantial majority of their energy needs and do not have a fixed quantity of contractually required energy or capacity. As such, related forecasted revenues are considered optional purchases. Supplemental requirements contracts that include contracted blocks of energy and capacity at contractually fixed prices have the following estimated remaining performance obligations:
 Remaining Performance Obligations
(in millions)2019
2020
2021
2022
2023
Thereafter
Total
Progress Energy$63
$121
$87
$82
$39
$42
$434
Duke Energy Progress4
9
9
9
9
9
49
Duke Energy Florida59
112
78
73
30
33
385
Duke Energy Indiana5
10
5



20
 Remaining Performance Obligations
(in millions)2018
2019
2020
2021
2022
Thereafter
Total
Progress Energy$47
$112
$121
$80
$82
$81
$523
Duke Energy Progress4
9
9
9
9
18
58
Duke Energy Florida43
103
112
71
73
63
465
Duke Energy Indiana4
9
10
5


28

Revenues for block sales are recognized monthly as energy is delivered and stand-ready service is provided, consistent with invoiced amounts and unbilled estimates.
Gas Utilities and Infrastructure
Gas Utilities and Infrastructure earns its revenuerevenues through retail and wholesale natural gas service through the transportation, distribution and sale of natural gas. Duke Energy generally provides retail and wholesale natural gas service customers with all natural gas load requirements. Additionally, while natural gas can be stored, substantially all natural gas provided by Duke Energy is consumed by customers simultaneously with receipt of delivery.
Retail natural gas service is marketed throughout Duke Energy's natural gas service territory using published tariff rates. The tariff rates are established by regulators in Duke Energy's service territories. Each tariff, which is assigned to customers based on customer class, have multiple components, such as a commodity charge, demand charge, customer or monthly charge and transportation costs. Duke Energy considers each of these components to be aggregated into a single performance obligation for providing natural gas service. For contracts where Duke Energy provides all of the customer’s natural gas needs, the delivery of natural gas is considered a single performance obligation satisfied over time, and revenue is recognized monthly based on billings and unbilled estimates as service is provided and the commodity is consumed over the billing period. Additionally, natural gas service is typically at-will and customers can cancel service at any time, without a substantive penalty. Duke Energy also adheres to applicable regulatory requirements to ensure the collectability of amounts billed and receivable and appropriate mitigating procedures are followed when necessary.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





Certain long-term individually negotiated contracts exist to provide natural gas service. These contracts are regulated and approved by state commissions. The negotiated contracts have multiple components, including a natural gas and a demand charge, similar to retail natural gas contracts. Duke Energy considers each of these components to be a single performance obligation for providing natural gas service. This service represents consumption over the billing period, generally one month.
Fixed capacity payments under long-term contracts for the Gas Utilities and Infrastructure segment include minimum margin contracts and supply arrangements with municipalities and power generation facilities. Revenues for related sales are recognized monthly as natural gas is delivered and stand-ready service is provided, consistent with invoiced amounts and unbilled estimates. Estimated remaining performance obligations are as follows:
 Remaining Performance Obligations
(in millions)2019
2020
2021
2022
2023
Thereafter
Total
Piedmont$34
$69
$65
$64
$61
$432
$725
 Remaining Performance Obligations
(in millions)2018
2019
2020
2021
2022
Thereafter
Total
Piedmont$36
$71
$69
$65
$64
$462
$767

Commercial Renewables
Commercial Renewables earns the majority of its revenues through long-term PPAs and generally sells all of its wind and solar facility output, electricity and Renewable Energy Credits (RECs)RECs to customers. The majority of these PPAs have historically been accounted for as leases. For PPAs that are not accounted for as leases, the delivery of electricity and the delivery of RECs are considered separate performance obligations.
The delivery of electricity is a performance obligation satisfied over time and represents generation and consumption of the electricity over the billing period, generally one month. The delivery of RECs is a performance obligation satisfied at a point in time and represents delivery of each REC generated by the wind or solar facility. The majority of self-generated RECs are bundled with energy in Duke Energy’s contracts and, as such, related revenues are recognized as energy is generated and delivered as that pattern is consistent with Duke Energy’s performance. Commercial Renewables recognizes revenue based on the energy generated and billed for the period, generally one month, at contractual rates (including unbilled estimates) according to the invoice practical expedient. Amounts are typically due within 30 days of invoice.
Other
The remainder of Duke Energy’s operations is presented as Other, which does not include material revenues from contracts with customers.


PART I
91


DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





FINANCIAL STATEMENTSREVENUE


Disaggregated Revenues
For the Electric and Gas segments, revenue by customer class is most meaningful to Duke Energy as each respective customer class collectively represents unique customer expectations of service, generally has different energy and demand requirements, and operates under tailored, regulatory approved pricing structures. Additionally, each customer class is impacted differently by weather and a variety of economic factors including the level of population growth, economic investment, employment levels, and regulatory activities in each of Duke Energy’s jurisdictions. As such, analyzing revenues disaggregated by customer class allows Duke Energy to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. For the Commercial Renewables segment, the majority of revenues from contracts with customers are from selling all of the unit-contingent output at contractually defined pricing under long-term PPAs with consistent expectations regarding the timing and certainty of cash flows. Disaggregated revenues are presented as follows:
 Three Months Ended June 30, 2018
  Duke
 Duke
Duke
Duke
Duke
 
(in millions)Duke
Energy
Progress
Energy
Energy
Energy
Energy
 
By market or type of customerEnergy
Carolinas
Energy
Progress
Florida
Ohio
Indiana
Piedmont
Electric Utilities and Infrastructure        
   Residential$2,185
$659
$1,099
$452
$648
$181
$245
$
   General1,481
501
678
300
377
110
188

   Industrial736
286
224
159
66
33
192

   Wholesale515
115
322
287
34
2
77

   Other revenues194
85
96
47
50
23
20

Total Electric Utilities and Infrastructure revenue from contracts with customers$5,111
$1,646
$2,419
$1,245
$1,175
$349
$722
$
         
Gas Utilities and Infrastructure        
   Residential$153
$
$
$
$
$66
$
$87
   Commercial87




28

59
   Industrial31




3

28
   Power Generation






14
   Other revenues23




6

17
Total Gas Utilities and Infrastructure revenue from contracts with customers$294
$
$
$
$
$103
$
$205
         
Commercial Renewables

        
Revenue from contracts with customers$47
$
$
$
$
$
$
$
         
Other

        
Revenue from contracts with customers$15
$
$
$
$
$10
$
$
         
Total revenue from contracts with customers$5,467
$1,646
$2,419
$1,245
$1,175
$462
$722
$205
         
Other revenue sources (a)
$176
$26
$79
$46
$28
$(3)$16
$10
Total revenues$5,643
$1,672
$2,498
$1,291
$1,203
$459
$738
$215
 Three Months Ended June 30, 2019
  Duke
 Duke
Duke
Duke
Duke
 
(in millions)Duke
Energy
Progress
Energy
Energy
Energy
Energy
 
By market or type of customerEnergy
Carolinas
Energy
Progress
Florida
Ohio
Indiana
Piedmont
Electric Utilities and Infrastructure        
   Residential$2,304
$679
$1,243
$496
$747
$159
$225
$
   General1,584
531
750
339
411
105
197

   Industrial759
289
231
164
67
36
201

   Wholesale527
109
351
309
42
9
59

   Other revenues187
68
99
44
55
25
27

Total Electric Utilities and Infrastructure revenue from contracts with customers$5,361
$1,676
$2,674
$1,352
$1,322
$334
$709
$
         
Gas Utilities and Infrastructure        
   Residential$146
$
$
$
$
$64
$
$82
   Commercial85




26

59
   Industrial29




3

24
   Power Generation






13
   Other revenues22




2

19
Total Gas Utilities and Infrastructure revenue from contracts with customers$282
$
$
$
$
$95
$
$197
         
Commercial Renewables        
Revenue from contracts with customers$46
$
$
$
$
$
$
$
         
Other        
Revenue from contracts with customers$6
$
$
$
$
$
$
$
Total revenue from contracts with customers$5,695
$1,676
$2,674
$1,352
$1,322
$429
$709
$197
         
Other revenue sources(a)
$178
$37
$70
$35
$31
$4
$5
$12
Total revenues$5,873
$1,713
$2,744
$1,387
$1,353
$433
$714
$209



92


PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)






 Six Months Ended June 30, 2018
  Duke
 Duke
Duke
Duke
Duke
 
(in millions)Duke
Energy
Progress
Energy
Energy
Energy
Energy
 
By market or type of customerEnergy
Carolinas
Energy
Progress
Florida
Ohio
Indiana
Piedmont
Electric Utilities and Infrastructure        
   Residential$4,535
$1,440
$2,211
$968
$1,243
$361
$523
$
   General2,856
973
1,309
599
710
206
366

   Industrial1,400
541
432
304
128
63
365

   Wholesale1,148
234
768
684
84
2
145

   Other revenues333
152
225
132
93
37
37

Total Electric Utilities and Infrastructure revenue from contracts with customers$10,272
$3,340
$4,945
$2,687
$2,258
$669
$1,436
$
         
Gas Utilities and Infrastructure        
   Residential$566
$
$
$
$
$177
$
$389
   Commercial288




77

211
   Industrial79




10

69
   Power Generation






27
   Other revenues78




12

66
Total Gas Utilities and Infrastructure revenue from contracts with customers$1,011
$
$
$
$
$276
$
$762
         
Commercial Renewables        
Revenue from contracts with customers$80
$
$
$
$
$
$
$
         
Other        
Revenue from contracts with customers$31
$
$
$
$
$24
$
$
         
Total Revenue from contracts with customers$11,394
$3,340
$4,945
$2,687
$2,258
$969
$1,436
$762
         
Other revenue sources(a)
$384
$95
$129
$64
$60
$14
$33
$6
Total revenues$11,778
$3,435
$5,074
$2,751
$2,318
$983
$1,469
$768
FINANCIAL STATEMENTSREVENUE


 Three Months Ended June 30, 2018
  Duke
 Duke
Duke
Duke
Duke
 
(in millions)Duke
Energy
Progress
Energy
Energy
Energy
Energy
 
By market or type of customerEnergy
Carolinas
Energy
Progress
Florida
Ohio
Indiana
Piedmont
Electric Utilities and Infrastructure        
   Residential$2,185
$659
$1,099
$452
$648
$181
$245
$
   General1,481
501
678
300
377
110
188

   Industrial736
286
224
159
66
33
192

   Wholesale515
115
322
287
34
2
77

   Other revenues194
85
96
47
50
23
20

Total Electric Utilities and Infrastructure revenue from contracts with customers$5,111
$1,646
$2,419
$1,245
$1,175
$349
$722
$
         
Gas Utilities and Infrastructure        
   Residential$153
$
$
$
$
$66
$
$87
   Commercial87




28

59
   Industrial31




3

28
   Power Generation






14
   Other revenues23




6

17
Total Gas Utilities and Infrastructure revenue from contracts with customers$294
$
$
$
$
$103
$
$205
         
Commercial Renewables        
Revenue from contracts with customers$47
$
$
$
$
$
$
$
         
Other        
Revenue from contracts with customers$15
$
$
$
$
$10
$
$
Total revenue from contracts with customers$5,467
$1,646
$2,419
$1,245
$1,175
$462
$722
$205
         
Other revenue sources(a)
$176
$26
$79
$46
$28
$(3)$16
$10
Total revenues$5,643
$1,672
$2,498
$1,291
$1,203
$459
$738
$215
(a)Other revenue sources include revenues from leases, derivatives and alternative revenue programs that are not considered revenues from contracts with customers. Alternative revenue programs in certain jurisdictions include regulatory mechanisms that periodically adjust for over or under collection of related revenues.
IMPACT OF WEATHER AND THE TIMING OF BILLING PERIODS
Revenues and costs are influenced by seasonal weather patterns. Peak sales of electricity occur during the summer and winter months, which results in higher revenue and cash flows during these periods. By contrast, lower sales of electricity occur during the spring and fall, allowing for scheduled plant maintenance. Residential and general service customers are more impacted by weather than industrial customers. Estimated weather impacts are based on actual current period weather compared to normal weather conditions. Normal weather conditions are defined as the long-term average of actual historical weather conditions. Heating-degree days measure the variation in weather based on the extent the average daily temperature falls below a base temperature. Cooling-degree days measure the variation in weather based on the extent the average daily temperature rises above the base temperature. Each degree of temperature below the base temperature counts as one heating-degree day and each degree of temperature above the base temperature counts as one cooling-degree day.
The estimated impact of weather on earnings for Electric Utilities and Infrastructure is based on the temperature variances from a normal condition and customers' historic usage patterns. The methodology used to estimate the impact of weather does not consider all variables that may impact customer response to weather conditions, such as humidity in the summer or wind chill in the winter. The precision of this estimate may also be impacted by applying long-term weather trends to shorter-term periods.

93


PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





FINANCIAL STATEMENTSREVENUE
Gas Utilities and Infrastructure's costs and revenues are influenced by seasonal patterns due to peak natural gas sales occurring during the winter months as a result of space heating requirements. Residential customers are the most impacted by weather. There are certain regulatory mechanisms for the North Carolina, South Carolina, Tennessee and Ohio service territories that normalize the margins collected from certain customer classes during the winter. In North Carolina, rate design provides protection from both weather and other usage variations such as conservation, while South Carolina and Tennessee revenues are adjusted solely based on weather. Ohio primarily employs a fixed charge each month regardless of the season and usage.

 Six Months Ended June 30, 2019
  Duke
 Duke
Duke
Duke
Duke
 
(in millions)Duke
Energy
Progress
Energy
Energy
Energy
Energy
 
By market or type of customerEnergy
Carolinas
Energy
Progress
Florida
Ohio
Indiana
Piedmont
Electric Utilities and Infrastructure        
   Residential$4,674
$1,439
$2,357
$1,032
$1,325
$348
$531
$
   General3,011
1,027
1,382
645
737
208
394

   Industrial1,470
555
453
325
128
69
391

   Wholesale1,068
228
704
624
80
23
113

   Other revenues359
146
271
169
102
41
44

Total Electric Utilities and Infrastructure revenue from contracts with customers$10,582
$3,395
$5,167
$2,795
$2,372
$689
$1,473
$
         
Gas Utilities and Infrastructure        
   Residential$560
$
$
$
$
$176
$
$384
   Commercial291




75

216
   Industrial77




10

66
   Power Generation






26
   Other revenues85




10

75
Total Gas Utilities and Infrastructure revenue from contracts with customers$1,013
$
$
$
$
$271
$
$767
         
Commercial Renewables        
Revenue from contracts with customers$88
$
$
$
$
$
$
$
         
Other        
Revenue from contracts with customers$10
$
$
$
$
$
$
$
Total Revenue from contracts with customers$11,693
$3,395
$5,167
$2,795
$2,372
$960
$1,473
$767
         
Other revenue sources(a)
$343
$62
$149
$76
$67
$4
$9
$21
Total revenues$12,036
$3,457
$5,316
$2,871
$2,439
$964
$1,482
$788

94




FINANCIAL STATEMENTSREVENUE


 Six Months Ended June 30, 2018
  Duke
 Duke
Duke
Duke
Duke
 
(in millions)Duke
Energy
Progress
Energy
Energy
Energy
Energy
 
By market or type of customerEnergy
Carolinas
Energy
Progress
Florida
Ohio
Indiana
Piedmont
Electric Utilities and Infrastructure        
   Residential$4,535
$1,440
$2,211
$968
$1,243
$361
$523
$
   General2,856
973
1,309
599
710
206
366

   Industrial1,400
541
432
304
128
63
365

   Wholesale1,148
234
768
684
84
2
145

   Other revenues333
152
225
132
93
37
37

Total Electric Utilities and Infrastructure revenue from contracts with customers$10,272
$3,340
$4,945
$2,687
$2,258
$669
$1,436
$
         
Gas Utilities and Infrastructure        
   Residential$566
$
$
$
$
$177
$
$389
   Commercial288




77

211
   Industrial79




10

69
   Power Generation






27
   Other revenues78




12

66
Total Gas Utilities and Infrastructure revenue from contracts with customers$1,011
$
$
$
$
$276
$
$762
         
Commercial Renewables        
Revenue from contracts with customers$80
$
$
$
$
$
$
$
         
Other        
Revenue from contracts with customers$31
$
$
$
$
$24
$
$
Total Revenue from contracts with customers$11,394
$3,340
$4,945
$2,687
$2,258
$969
$1,436
$762
         
Other revenue sources(a)
$384
$95
$129
$64
$60
$14
$33
$6
Total revenues$11,778
$3,435
$5,074
$2,751
$2,318
$983
$1,469
$768
(a)Other revenue sources include revenues from leases, derivatives and alternative revenue programs that are not considered revenues from contracts with customers. Alternative revenue programs in certain jurisdictions include regulatory mechanisms that periodically adjust for over or under collection of related revenues.
UNBILLED REVENUE
Unbilled revenues are recognized by applying customer billing rates to the estimated volumes of energy or natural gas delivered but not yet billed. Unbilled revenues can vary significantly from period to period as a result of seasonality, weather, customer usage patterns, customer mix, average price in effect for customer classes, timing of rendering customer bills and meter reading schedules, and the impact of weather normalization or margin decoupling mechanisms.
Unbilled revenues are included within Receivables and Receivables of VIEs on the Condensed Consolidated Balance Sheets as shown in the following table.
(in millions)June 30, 2019
 December 31, 2018
Duke Energy$790
 $896
Duke Energy Carolinas288
 313
Progress Energy270
 244
Duke Energy Progress148
 148
Duke Energy Florida122
 96
Duke Energy Ohio1
 2
Duke Energy Indiana14
 23
Piedmont4
 73


95




(in millions)June 30, 2018
 December 31, 2017
Duke Energy$876
 $944
Duke Energy Carolinas315
 342
Progress Energy298
 228
Duke Energy Progress190
 143
Duke Energy Florida107
 85
Duke Energy Ohio2
 4
Duke Energy Indiana30
 21
Piedmont5
 86
FINANCIAL STATEMENTSREVENUE


Additionally, Duke Energy Ohio and Duke Energy Indiana sell, on a revolving basis, nearly all of their retail accounts receivable, including receivables for unbilled revenues, to an affiliate, CRC, and accountsaccount for the transfers of receivables as sales. Accordingly, the receivables sold are not reflected on the Condensed Consolidated Balance Sheets of Duke Energy Ohio and Duke Energy Indiana. See Note 1213 for further information. These receivables for unbilled revenues are shown in the table below.
(in millions)June 30, 2019
 December 31, 2018
Duke Energy Ohio$65
 $86
Duke Energy Indiana116
 128
(in millions)June 30, 2018
 December 31, 2017
Duke Energy Ohio$73
 $104
Duke Energy Indiana123
 132

14. COMMON STOCK15. STOCKHOLDERS' EQUITY
Basic Earnings Per Share (EPS)EPS is computed by dividing net income attributable to Duke Energy common stockholders, as adjusted for distributed and undistributed earnings allocated to participating securities, by the weighted average number of common shares outstanding during the period. Diluted EPS is computed by dividing net income attributable to Duke Energy common stockholders, as adjusted for distributed and undistributed earnings allocated to participating securities, by the diluted weighted average number of common shares outstanding during the period. Diluted EPS reflects the potential dilution that could occur if securities or other agreements to issue common stock, such as stock options and equity forward sale agreements, were exercised or settled. Duke Energy’s participating securities are restricted stock units that are entitled to dividends declared on Duke Energy common stock during the restricted stock unit’s vesting periods.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





The following table presents Duke Energy’s basic and diluted EPS calculations, and reconciles the weighted average number of common shares outstanding to the diluted weighted average number ofand common shares outstanding.and preferred share dividends declared.
Three Months Ended June 30, Six Months Ended June 30,Three Months Ended June 30, Six Months Ended June 30,
(in millions, except per-share amounts)2018
 2017
 2018
 2017
2019
 2018
 2019
 2018
Income from continuing operations attributable to Duke Energy common stockholders excluding impact of participating securities$504
 $687
 $1,123
 $1,402
$819
 $504
 $1,718
 $1,123
Weighted average shares outstanding – basic703
 700
 702
 700
       
Weighted average common shares outstanding – basic728
 703
 728
 702
Equity Forwards1
 
 
 

 1
 
 
Weighted average shares outstanding – diluted704 700 702 700
Earnings per share from continuing operations attributable to Duke Energy common stockholders       
Basic$0.72
 $0.98
 $1.60
 $2.00
Diluted$0.72
 $0.98
 $1.60
 $2.00
Weighted average common shares outstanding – diluted728
 704
 728
 702
EPS from continuing operations attributable to Duke Energy common stockholders       
Basic and Diluted$1.12
 $0.72
 $2.36
 $1.60
Potentially dilutive items excluded from the calculation(a)
2
 2
 2 22
 2
 2
 2
Dividends declared per common share$0.89
 $0.855
 $1.78
 $1.71
$0.928
 $0.89
 $1.855
 $1.78
Dividends declared on preferred stock per depositary share$0.307
 $
 $0.307
 $
(a)Performance stock awards were not included in the dilutive securities calculation because the performance measures related to the awards had not been met.
Equity ForwardsCommon Stock
On February 20, 2018, Duke Energy filed a prospectus supplement and executed an Equity Distribution Agreement (the EDA)EDA under which it may sell up to $1 billion of its common stock through an at-the-market (ATM)ATM offering program, including an equity forward sales component. The EDA was entered into with Wells Fargo Securities, LLC, Citigroup Global Markets Inc., and J.P. Morgan Securities LLC (the Agents).the Agents. Under the terms of the EDA, Duke Energy may issue and sell, through any of the Agents, shares of common stock through September 23, 2019.
In June 2018, Duke Energy marketed two separate tranches, each for 1.3 million shares, of common stock. The first tranche was marketed with Wells Fargo Bank at an initial forward price of $72.02 per share and the second tranche was marketed with Citibank at an initial forward price of $78.71 per sharestock through equity forward transactions under the ATM program. In December 2018, Duke Energy physically settled these equity forwards by delivering 2.6 million shares of common stock in exchange for net proceeds of approximately $195 million.
Separately, in March 2018, Duke Energy marketed an equity offering of 21.3 million shares of common stock through an Underwriting Agreement. In connection with the offering, Duke Energy entered into equity forward sale agreements. The Equity Forwards requireequity forwards required Duke Energy to either physically settle the transactions by issuing 2.621.3 million shares in exchange for net proceeds at the then-applicable forward sale price specified by the agreements, or net settle in whole or in part through the delivery or receipt of cash or shares. In June 2018, Duke Energy physically settled one-half of the equity forwards by delivering approximately 10.6 million shares of common stock in exchange for net cash proceeds of approximately $781 million. In December 2018, Duke Energy physically settled the remaining equity forward by delivering 10.6 million shares of common stock in exchange for net cash proceeds of approximately $766 million.
In 2018, Duke Energy also issued 2.2 million shares through its DRIP with an increase in additional paid-in capital of approximately $174 million. For the six months ended June 30, 2019, Duke Energy issued 0.9 million shares through its DRIP with an increase in additional paid-in capital of approximately $80 million.

96




FINANCIAL STATEMENTSSTOCKHOLDERS' EQUITY


In March and April 2019, Duke Energy marketed two separate tranches, each for 1.1 million shares, of common stock through equity forward transactions under the ATM program. The first tranche had an initial forward price of $89.83 per share and the second tranche had an initial forward price of $88.82 per share. In May and June 2019, a third tranche of 1.6 million shares of common stock was marketed and had an initial forward price of $86.23. The equity forwards require Duke Energy to either physically settle the transaction by issuing shares in exchange for net proceeds at the then-applicable forward sale price specified by the agreements or net settle in whole or in part through the delivery or receipt of cash or shares. The settlement alternative is at Duke Energy's election.
Separately, in March 2018, Duke Energy marketed an equity offering of 21.3 million shares of common stock through an Underwriting Agreement with Credit Suisse Securities (USA) LLC, J.P. Morgan Securities LLC, Barclays Capital Inc. and Goldman Sachs & Co. LLC, as representatives of several underwriters, Credit Suisse Capital LLC and J.P. Morgan Securities LLC as Forward Sellers, and Credit Suisse Capital LLC and JPMorgan Chase National Bank Associate, acting as forward purchasers. In connection with the offering, Duke Energy entered into equity forward sale agreements with Credit Suisse Securities (USA) LLC as Agent for Credit Suisse Capital LLC and J.P. Morgan Chase Bank, National Association. The sale price was $75 per share less certain net adjustments for an initial forward price of $74.07 per share. The Equity Forwards require Duke Energy to either physically settle the transactions by issuing 21.3 million shares in exchange for net proceeds at the then-applicable forward sale price specified by the agreements , or net settle in whole or in part through the delivery or receipt of cash or shares. The settlement alternative is at Duke Energy's election. In June 2018, Duke Energy physically settled one-half of the equity forwards by delivering approximately 10.6 million shares of common stock in exchange for net cash proceeds of approximately $781 million.
For contracts that have not been settled, no No amounts have or will be recorded in Duke Energy's Condensed Consolidated Financial Statements with respect to the equity orthese ATM offerings until settlements of the Equity Forwardsequity forwards occur, which is expected by December 31, 2018. If Duke Energy had elected to net share settle these contracts as of June 30, 2018, Duke Energy would have been required to deliver 0.9 million shares.2019. The initial forward sale price will be subject to adjustment on a daily basis based on a floating interest rate factor and will decrease by other fixed amounts specified in the relevant forward sale agreement.agreements. Until settlement of the Equity Forwards, earnings per shareequity forwards, EPS dilution resulting from the agreements, if any, will be determined under the treasury stock method. Share dilution occurs when
Preferred Stock
On March 29, 2019, Duke Energy completed the average marketissuance of 40 million depositary shares, each representing 1/1,000th share of its Series A Cumulative Redeemable Perpetual Preferred Stock, at a price of $25 per depositary share. The transaction resulted in net proceeds of $973 million after issuance costs and the proceeds are being used for general corporate purposes and to reduce short-term debt. The preferred stock has a $25 liquidation preference per depositary share and earns dividends on a cumulative basis at a rate of 5.75 percent per annum. Dividends are payable quarterly in arrears on the 16th day of March, June, September and December, and began on June 16, 2019. Dividends issued on its preferred stock are subject to approval by the Duke Energy Board of Directors. However, the deferral of dividend payments on the preferred stock prohibits the declaration of common stock dividends. Dividends declared on preferred stock will be recorded on the income statement as a reduction of net income to arrive at net income attributable to Duke Energy common stockholders. Dividends accumulated on preferred stock will be a reduction to net income used in the calculation of basic and diluted EPS.
The Series A Preferred Stock ranks, with respect to dividends and distributions upon liquidation or dissolution:
senior to Common Stock and to each other class or series of capital stock established after the original issue date of the Series A Preferred Stock that is expressly made subordinated to the Series A Preferred Stock;
on a parity with any class or series of capital stock established after the original issue date of the Series A Preferred Stock that is not expressly made senior or subordinated to the Series A Preferred Stock;
junior to any class or series of capital stock established after the original issue date of the Series A Preferred Stock that is expressly made senior to the Series A Preferred Stock;
junior to all of existing and future indebtedness (including indebtedness outstanding under Duke Energy's credit facilities, unsecured senior notes, junior subordinated debentures and commercial paper) and other liabilities with respect to assets available to satisfy claims against Duke Energy; and
structurally subordinated to existing and future indebtedness and other liabilities of Duke Energy's subsidiaries and future preferred stock of subsidiaries.
The preferred stock has no maturity or mandatory redemption date, is higher than the average forward sales price.
15. STOCK-BASED COMPENSATION
For employee awards, equity classified stock-based compensation cost is measurednot redeemable at the service inception date or the grant date, based on the estimated achievement of certain performance metrics or the fair valueoption of the award,holders and includes separate call options. The first call option allows Duke Energy to call the preferred stock at a redemption price of $25.50 per depositary share prior to June 15, 2024, in whole but not in part, at any time within 120 days after a ratings event where a rating agency amends, clarifies or changes the criteria it uses to assign equity credit for securities such as the preferred stock. The second call option allows Duke Energy to call the preferred stock, in whole or in part, at any time, on or after June 15, 2024, at a redemption price of $25 per depositary share. Duke Energy is recognized as expense or capitalizedalso required to redeem all accumulated and unpaid dividends if either call option is exercised.
Holders of the preferred stock have no voting rights with respect to matters that generally require the approval of voting stockholders. The limited voting rights of holders of preferred stock include the right to vote as a componentsingle class on certain matters that may affect the preference or special rights of property, plant and equipment over the requisite service period.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notespreferred stock, except in the instance that Duke Energy elects to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





The following table presents information relateddefer the payment of dividends for a total of six quarterly full dividend periods. If dividends are deferred for a cumulative total of six quarterly full dividend periods, whether or not for consecutive dividend periods, holders of the preferred stock have the right to elect two additional Board members to the Duke Energy's stock–based compensation.
 Three Months Ended Six Months Ended
 June 30, June 30,
(in millions)2018
 2017
 2018
 2017
Restricted stock unit awards$12
 $12
 $22
 $20
Performance awards7
 6
 14
 13
Pretax stock-based compensation cost$19
 $18
 $36
 $33
Stock-based compensation cost capitalized$1
 $
 $2
 $1
Stock-based compensation expense$18
 $18
 $34
 $32
Tax benefit associated with stock-based compensation expense$4
 $7
 $8
 $12
Energy Board of Directors.
16. EMPLOYEE BENEFIT PLANS
DEFINED BENEFIT RETIREMENT PLANS
Duke Energy maintains,and certain subsidiaries maintain, and the Subsidiary Registrants participate in, qualified and non-qualified, non-contributory defined benefit retirement plans. Duke Energy’sEnergy's policy is to fund amounts on an actuarial basis to provide assets sufficient to meet benefit payments to be paid to plan participants. The following table presents contributions made by the Duke Energy Registrants to their qualified defined benefit pension plans during the six months ended June 30, 2018.
   Duke
   Duke
 Duke
 Duke
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Indiana
Contributions$141
 $46
 $45
 $25
 $20
 $8
Duke Energy did not make any contributions to its qualified defined benefit pension plans during the six months ended June 30, 2017.
Duke Energy uses a December 31 measurement date for its qualified non-contributory defined benefit retirement plan assets and obligations.
Components However, because Duke Energy believes it is probable in 2019 that total lump-sum benefit payments will exceed the settlement threshold, which is defined as the sum of Net Periodic Benefit Costs
The tables below present totalthe service cost and interest cost on projected benefit obligation components of net periodic benefitpension costs, prior to capitalizationDuke Energy remeasured the plan assets and plan obligations associated with one of amounts reflectedits qualified pension plans as Net property, plant and equipmentof June 30, 2019. The discount rate used for the remeasurement was 3.5 percent. The cash balance interest crediting rate was 4.0 percent. All other assumptions used for the remeasurement were consistent with the measurement as of December 31, 2018. As a result, Duke Energy recognized a remeasurement gain of $18 million, which is recorded in Other within Other Noncurrent Assets on the Condensed Consolidated Balance Sheets. OnlySheets as of June 30, 2019. The remeasurement gain, which represents an increase in funded status, reflects an increase of $275 million in the service cost componentfair value of net periodicplan assets and an increase of $257 million in the projected benefit costs is eligible to be capitalized. The remaining non-capitalized portionsobligation.


97




FINANCIAL STATEMENTSEMPLOYEE BENEFIT PLANS


As the result of net periodic benefit costs are classifiedsettlement accounting, Duke Energy recognized a settlement charge of $69 million, primarily as either: (1) service cost, which is recorded in Operations, maintenance and othera regulatory asset within Other Noncurrent Assets on the Condensed Consolidated StatementsBalance Sheets as of Operations; or as (2) components of non-service cost, which isJune 30, 2019 (an immaterial amount was recorded in Other income and expenses, net onwithin the Condensed Consolidated StatementsStatement of Operations. See Note 1 for further information on impacts of the retirement benefits accounting standard adoptedOperations). Settlement charges recognized by Duke Energy on January 1, 2018.
Pension and other post-retirement benefit costs presented in the tables below for the Subsidiary Registrants are amounts allocated fromwere $43 million for Duke Energy Carolinas, $16 million for the employees of the respective Subsidiary Registrants. The Condensed Consolidated Statements of Operations of the Subsidiary Registrants also include allocated net periodic benefit costs for their proportionate share of pension and post-retirement benefit costs related to employees of the Duke Energy shared services affiliate. However,Progress, $3 million for Duke Energy Florida, $3 million for Duke Energy Indiana, $1 million for Duke Energy Ohio and $3 million for Piedmont. The settlement charge reflects the recognition of a pro-rata portion of previously unrecognized actuarial losses, equal to the percentage of reduction in the tables below these amounts are only presented in the Duke Energy column. For additional information on the corporate governance and shared service expenses allocatedprojected benefit obligation resulting from the Duke Energy shared service affiliate, see Note 8.total lump-sum benefits payments as of June 30, 2019.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





QUALIFIED PENSION PLANS
The following tables include the components of net periodic pension costs for qualified pension plans.
Three Months Ended June 30, 2018Three Months Ended June 30, 2019
  Duke
   Duke
 Duke
 Duke
 Duke
    Duke
   Duke
 Duke
 Duke
 Duke
  
Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Service cost$45
 $15
 $13
 $8
 $6
 $1
 $3
 $2
$37
 $12
 $10
 $6
 $6
 $1
 $2
 $2
Interest cost on projected benefit obligation75
 18
 22
 10
 12
 4
 6
 3
82
 21
 26
 12
 13
 4
 7
 3
Expected return on plan assets(140) (37) (43) (21) (23) (7) (11) (6)(143) (37) (45) (21) (22) (6) (10) (6)
Amortization of actuarial loss33
 7
 11
 5
 6
 1
 2
 3
25
 5
 9
 3
 6
 
 1
 1
Amortization of prior service credit(8) (2) (1) (1) (1) 
 
 (3)(8) (2) 
 (1) (1) 
 (1) (2)
Net periodic pension costs$5
 $1
 $2
 $1
 $
 $(1) $
 $(1)$(7) $(1) $
 $(1) $2
 $(1) $(1) $(2)
Three Months Ended June 30, 2017Three Months Ended June 30, 2018
  Duke
   Duke
 Duke
 Duke
 Duke
    Duke
   Duke
 Duke
 Duke
 Duke
  
Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Service cost$40
 $12
 $12
 $6
 $5
 $1
 $2
 $3
$45
 $15
 $13
 $8
 $6
 $1
 $3
 $2
Interest cost on projected benefit obligation82
 20
 25
 12
 13
 5
 7
 3
75
 18
 22
 10
 12
 4
 6
 3
Expected return on plan assets(136) (36) (43) (21) (21) (7) (11) (6)(140) (37) (43) (21) (23) (7) (11) (6)
Amortization of actuarial loss36
 8
 14
 6
 7
 1
 3
 3
33
 7
 11
 5
 6
 1
 2
 3
Amortization of prior service credit(6) (2) (1) 
 
 
 
 (1)(8) (2) (1) (1) (1) 
 
 (3)
Other2
 
 1
 1
 
 
 
 1
Net periodic pension costs$18
 $2
 $8
 $4
 $4
 $
 $1
 $3
$5
 $1
 $2
 $1
 $
 $(1) $
 $(1)

Six Months Ended June 30, 2018Six Months Ended June 30, 2019
  Duke
   Duke
 Duke
 Duke
 Duke
    Duke
   Duke
 Duke
 Duke
 Duke
  
Duke Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  Duke Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Energy Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Service cost$90
 $30
 $26
 $15
 $11
 $2
 $5
 $4
$74
 $24
 $21
 $12
 $10
 $2
 $4
 $3
Interest cost on projected benefit obligation150
 36
 46
 21
 25
 9
 12
 6
165
 41
 52
 24
 27
 9
 13
 6
Expected return on plan assets(280) (74) (88) (42) (46) (14) (21) (12)(286) (75) (89) (44) (44) (14) (21) (11)
Amortization of actuarial loss66
 14
 22
 10
 12
 2
 4
 6
49
 11
 18
 6
 12
 1
 3
 3
Amortization of prior service credit(16) (4) (2) (1) (1) 
 
 (6)(16) (4) (1) (1) (1) 
 (1) (5)
Net periodic pension costs$10
 $2
 $4
 $3
 $1
 $(1) $
 $(2)$(14) $(3) $1
 $(3) $4
 $(2) $(2) $(4)
 Six Months Ended June 30, 2018
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Service cost$90
 $30
 $26
 $15
 $11
 $2
 $5
 $4
Interest cost on projected benefit obligation150
 36
 46
 21
 25
 9
 12
 6
Expected return on plan assets(280) (74) (88) (42) (46) (14) (21) (12)
Amortization of actuarial loss66
 14
 22
 10
 12
 2
 4
 6
Amortization of prior service credit(16) (4) (2) (1) (1) 
 
 (6)
Net periodic pension costs$10
 $2
 $4
 $3
 $1
 $(1) $
 $(2)


98




 Six Months Ended June 30, 2017
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Service cost$80
 $24
 $24
 $12
 $10
 $2
 $4
 $6
Interest cost on projected benefit obligation164
 40
 50
 24
 26
 10
 14
 6
Expected return on plan assets(272) (71) (86) (42) (42) (14) (22) (12)
Amortization of actuarial loss72
 16
 28
 12
 14
 2
 6
 6
Amortization of prior service credit(12) (4) (2) 
 
 
 
 (2)
Other4
 
 2
 1
 
 
 
 1
Net periodic pension costs$36
 $5
 $16
 $7
 $8
 $
 $2
 $5
FINANCIAL STATEMENTSEMPLOYEE BENEFIT PLANS


NON-QUALIFIED PENSION PLANS
The following tables include the components of netNet periodic pension costs for non-qualified pension plans were not material for registrants with non-qualified pension costs.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





 Three Months Ended June 30, 2018
   Duke
   Duke
 Duke
 Duke
 Energy
 Progress
 Energy
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
Service cost$1
 $1
 $
 $
 $
Interest cost on projected benefit obligation3
 
 1
 1
 1
Amortization of actuarial loss2
 
 
 
 
Amortization of prior service credit(1) 
 
 
 
Net periodic pension costs$5
 $1
 $1
 $1
 $1
 Three Months Ended June 30, 2017
   Duke
   Duke
 Duke
 Duke
 Energy
 Progress
 Energy
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
Interest cost on projected benefit obligation$3
 $1
 $1
 $
 $
Amortization of actuarial loss2
 
 1
 
 
Net periodic pension costs$5
 $1
 $2
 $
 $
 Six Months Ended June 30, 2018
   Duke
   Duke
 Duke
 Duke
 Energy
 Progress
 Energy
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
Service cost$1
 $1
 $
 $
 $
Interest cost on projected benefit obligation6
 
 2
 1
 1
Amortization of actuarial loss4
 
 
 
 
Amortization of prior service (credit) cost(1) 
 1
 
 
Net periodic pension costs$10
 $1
 $3
 $1
 $1
 Six Months Ended June 30, 2017
   Duke
   Duke
 Duke
 Duke
 Energy
 Progress
 Energy
 Energy
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
Interest cost on projected benefit obligation$6
 $1
 $2
 $1
 $1
Amortization of actuarial loss4
 
 2
 
 
Net periodic pension costs$10
 $1
 $4
 $1
 $1
the three and six months ended June 30, 2019, and 2018.
OTHER POST-RETIREMENT BENEFIT PLANS
Duke Energy provides,Net periodic costs for OPEB plans were not material for the three and the Subsidiary Registrants participate in, certain health caresix months ended June 30, 2019, and life insurance benefits for retired employees on a contributory and non-contributory basis.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





The following tables include the components of net periodic other post-retirement benefit costs.
 Three Months Ended June 30, 2018
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Service cost$2
 $1
 $
 $
 $
 $
 $
 $
Interest cost on accumulated post-retirement benefit obligation7
 1
 2
 2
 2
 1
 1
 
Expected return on plan assets(4) (2) 
 
 
 
 
 
Amortization of actuarial loss2
 1
 1
 
 
 
 1
 
Amortization of prior service credit(5) (1) (2) 
 (2) 
 
 (1)
Net periodic other post-retirement benefit costs$2
 $
 $1
 $2
 $
 $1
 $2
 $(1)
 Three Months Ended June 30, 2017
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Service cost$1
 $
 $
 $
 $
 $
 $
 $
Interest cost on accumulated post-retirement benefit obligation9
 2
 3
 2
 2
 
 
 
Expected return on plan assets(4) (2) 
 
 
 
 
 
Amortization of actuarial loss (gain)2
 (1) 5
 3
 2
 (1) 
 
Amortization of prior service credit(29) (2) (21) (13) (7) 
 
 
Net periodic other post-retirement benefit costs$(21) $(3) $(13) $(8) $(3) $(1) $
 $

 Six Months Ended June 30, 2018
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Service cost$3
 $1
 $
 $
 $
 $
 $
 $
Interest cost on accumulated post-retirement benefit obligation14
 3
 6
 3
 3
 1
 2
 
Expected return on plan assets(6) (4) 
 
 
 
 
 
Amortization of actuarial loss3
 1
 1
 
 
 
 2
 
Amortization of prior service credit(10) (2) (4) 
 (3) 
 
 (1)
Net periodic other post-retirement benefit costs$4
 $(1) $3
 $3
 $
 $1
 $4
 $(1)
 Six Months Ended June 30, 2017
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Service cost$2
 $
 $
 $
 $
 $
 $
 $
Interest cost on accumulated post-retirement benefit obligation18
 4
 7
 4
 4
 
 
 
Expected return on plan assets(7) (4) 
 
 
 
 
 
Amortization of actuarial loss (gain)4
 (2) 10
 6
 4
 (1) 
 
Amortization of prior service credit(58) (4) (42) (27) (15) 
 
 
Net periodic other post-retirement benefit costs$(41) $(6) $(25) $(17) $(7) $(1) $
 $

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)






EMPLOYEE SAVINGS PLAN
Duke Energy sponsors, and the Subsidiary Registrants participate in, an employee savings plan that covers substantially all employees. The following table includes employer contributions made by Duke Energy and expensed by the Subsidiary Registrants.
   Duke
   Duke
 Duke
 Duke
 Duke
  
 Duke
 Energy
 Progress
 Energy
 Energy
 Energy
 Energy
  
(in millions)Energy
 Carolinas
 Energy
 Progress
 Florida
 Ohio
 Indiana
 Piedmont
Three Months Ended June 30,               
2018$48
 $15
 $13
 $9
 $4
 $1
 $2
 $2
201739
 13
 12
 8
 4
 1
 2
 1
Six Months Ended June 30,            
2018$118
 $38
 $32
 $22
 $10
 $2
 $5
 $6
2017104
 35
 30
 21
 9
 2
 5
 3
2018.
17. INCOME TAXES
Tax Act
On December 22, 2017, President Trump signed the Tax Act into law. Among other provisions, the Tax Act lowered the corporate federal income tax rate from 35 percent to 21 percent, limits interest deductions outside of regulated utility operations, requires the normalization of excess deferred taxes associated with property under the average rate assumption method as a prerequisite to qualifying for accelerated depreciation and repealed the federal manufacturing deduction. The Tax Act also repealed the corporate alternative minimum tax (AMT) and stipulates a refund of 50 percent of remaining AMT credit carryforwards (to the extent the credits exceed regular tax for the year) for tax years 2018, 2019 and 2020 with all remaining AMT credits to be refunded in tax year 2021.
At this time, AMT credits that are treated as refundable under the Tax Act are among the certain refundable tax credits that are subject to sequestration. In the first quarter of 2018, the company revised the December 31, 2017, estimate of the income tax effects of the Tax Act and recorded a $76 million valuation allowance against these AMT credits based on additional interpretative guidance from the Internal Revenue Service related to the Tax Act. See Note 22 to the Consolidated Financial Statements in the Annual Report on Form 10-K/A for the year ended December 31, 2017, for information on the U.S. Securities and Exchange Commission staff's guidance on accounting for the Tax Act (Staff Accounting Bulletin No. 118 (SAB 118), Income Tax Accounting Implications of the Tax Cuts and Jobs Act).
No provisional adjustments to the estimate of the income tax effects of the Tax Act were recorded for the three months ended June 30, 2018 in accordance with SAB 118.
EFFECTIVE TAX RATES
The effective tax ratesETRs from continuing operations for each of the Duke Energy Registrants are included in the following table.
 Three Months Ended Six Months Ended
 June 30, June 30,
 2019
 2018
 2019
 2018
Duke Energy15.9% 16.5% 12.6% 19.9%
Duke Energy Carolinas19.7% 21.5% 18.7% 21.8%
Progress Energy16.7% 17.3% 17.0% 15.4%
Duke Energy Progress16.3% 20.1% 17.1% 16.8%
Duke Energy Florida19.6% 18.0% 19.5% 17.4%
Duke Energy Ohio16.1% 25.8% 16.5% 16.0%
Duke Energy Indiana24.2% 25.8% 24.2% 25.8%
Piedmont22.2% 27.3% 21.8% 23.9%

 Three Months Ended Six Months Ended
 June 30, June 30,
 2018
 2017
 2018
 2017
Duke Energy16.5% 32.1% 19.9% 32.3%
Duke Energy Carolinas21.5% 34.7% 21.8% 35.0%
Progress Energy17.3% 33.4% 15.4% 33.7%
Duke Energy Progress20.1% 31.9% 16.8% 33.0%
Duke Energy Florida18.0% 36.8% 17.4% 36.7%
Duke Energy Ohio25.8% 34.8% 16.0% 35.1%
Duke Energy Indiana25.8% 39.4% 25.8% 39.4%
Piedmont27.3% 38.5% 23.9% 37.9%
The decrease in the effective tax rate (ETR) for Duke Energy and the Subsidiary Registrants for the three months ended June 30, 2018, is primarily due to the lower statutory federal corporate tax rate under the Tax Act. The decrease in the ETR for Duke Energy and the Subsidiary Registrants for the six months ended June 30, 2018,2019, is primarily due to a one-time valuation allowance charge in the lower statutory federal corporateprior year, an adjustment related to the income tax rate underrecognition for equity method investments recorded in the Tax Actfirst quarter of 2019 and an increase in the amortization of federal and state excess deferred taxes, partially offset by a valuation allowance against AMT credits discussed above.taxes. The equity method investment adjustment was immaterial and relates to prior years.
The decrease in the ETR for Duke Energy Carolinas for the three and six months ended June 30, 2018,2019, is primarily due to the lower statutory federal corporate tax rate under the Tax Act andan increase in the amortization of state excess deferred taxes.
The decreaseincrease in the ETR for Progress Energy for the three and six months ended June 30, 2018,2019, is primarily due to a decrease in AFUDC equity in the lower statutory federal corporate tax rate under the Tax Act and the amortization of federal and state excess deferred taxes.

PART I
DUKE ENERGY CORPORATION – DUKE ENERGY CAROLINAS, LLC – PROGRESS ENERGY, INC. –
DUKE ENERGY PROGRESS, LLC – DUKE ENERGY FLORIDA, LLC – DUKE ENERGY OHIO, INC. – DUKE ENERGY INDIANA, LLC – PIEDMONT NATURAL GAS COMPANY, INC.
Combined Notes to Condensed Consolidated Financial Statements – (Unaudited) – (Continued)





current year.
The decrease in the ETR for Duke Energy Progress for the three months ended June 30, 2018,2019, is primarily due to the lower statutory federal tax rate under the Tax Act. The decreasean increase in the ETR for Duke Energy Progress for the six months ended June 30, 2018, is primarily due to the lower statutory federal tax rate under the Tax Act and the amortization of state excess deferred taxes.
The decreaseincrease in the ETR for Duke Energy Florida for the three and six months ended June 30, 2018,2019, is primarily due to a decrease in AFUDC equity in the lower statutory federal corporate tax rate under the Tax Act and the amortization of federal excess deferred taxes.current year.
The decrease in the ETR for Duke Energy Ohio for the three months ended June 30, 2018,2019, is primarily due to the lower statutory federal tax rate under the Tax Act. The decrease in the ETR for Duke Energy Ohio for the six months ended June 30, 2018, is primarily due to the lower statutory federal tax rate under the Tax Act and an increase in AFUDC equity.the amortization of excess deferred taxes.
The decrease in the ETR for Duke Energy Indiana for the three and six months ended June 30, 2018,2019, is primarily due to an increase in the lower statutory federal corporate tax rate under the Tax Act.amortization of excess deferred taxes.
The decrease in the ETR for Piedmont for the three andmonths ended June 30, 2019, is primarily due to lower state tax rates. The decrease in the ETR for the six months ended June 30, 2018,2019, is primarily due to an increase in the lower statutory federal corporate tax rate under the Tax Act.amortization of excess deferred taxes.
18. SUBSEQUENT EVENTS
For information on subsequent events related to the Commercial Renewables segment, regulatory matters, and commitments and contingencies and debt, see Notes 2, 3, 4 and 4,6, respectively.

99



PART I

MD&ADUKE ENERGY


ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
The following combined Management’s Discussion and Analysis of Financial Condition and Results of Operations is separately filed by Duke Energy Corporation (collectively with its subsidiaries, Duke Energy) and Duke Energy Carolinas, LLC (Duke Energy Carolinas), Progress Energy, Inc. (Progress Energy), Duke Energy Progress, LLC (Duke Energy Progress), Duke Energy Florida, LLC (Duke Energy Florida), Duke Energy Ohio, Inc. (Duke Energy Ohio), Duke Energy Indiana LLC (Duke Energy Indiana) and Piedmont Natural Gas Company, Inc. (Piedmont) (collectively referred to as the Subsidiary Registrants).Piedmont. However, none of the registrants make any representation as to information related solely to Duke Energy or the Subsidiary Registrants of Duke Energy other than itself.
DUKE ENERGY
Duke Energy is an energy company headquartered in Charlotte, North Carolina. Duke Energy operates in the United States (U.S.)U.S. primarily through its wholly owned subsidiaries, Duke Energy Carolinas, Duke Energy Progress, Duke Energy Florida, Duke Energy Ohio, Duke Energy Indiana and Piedmont. When discussing Duke Energy’s consolidated financial information, it necessarily includes the results of the Subsidiary Registrants, which, along with Duke Energy, are collectively referred to as the Duke Energy Registrants.
Management’s Discussion and Analysis should be read in conjunction with the Condensed Consolidated Financial Statements and Notes for the six months ended June 30, 2018,2019, and with Duke Energy’s Annual Report on Form 10-K/A10-K for the year ended December 31, 2017.2018.
Executive Overview
Regulatory Activity
In 2018,2019, Duke Energy advanced regulatory activity underway in multiple jurisdictions as follows:
New base rates were implemented in the Duke Energy Ohio Electric Base Rate Case on January 2, 2019.
On January 11, 2019, Duke Energy Progress filed a request with the PSCSC, which included a request for the continuation of prior deferrals requested for ice storms and hurricanes Florence, Michael and Matthew. The request was approved on January 30, 2019.
On January 30, 2019, Duke Energy Kentucky entered into a settlement agreement with the Attorney General of Kentucky related to the Natural Gas Base Rate Case. The settlement provides for an approximate $7 million increase in natural gas base revenue and approval of the proposed WNA mechanism. The KPSC issued its Order approving the settlement without material modification on March 27, 2019.
On April 1, 2019, Piedmont filed an application with the NCUC, its first general rate case in North Carolina in six years. Piedmont expects new rates arising from this proceeding to take effect by the end of 2019.
On May 21, 2019, Duke Energy Carolinas received an order on its rate case from the North Carolina Utilities Commission (NCUC) on June 22, 2018. Major components of the order included: a return on equity of 9.9 percent, recovery of past coal ash remediation costs, recovery of Lee Nuclear Project development costs, and partial clarity on the treatment of federal taxes. On July 27, 2018, the NCUC approved Duke Energy Carolinas' compliance filing. As a result, revised customer rates will become effective on August 1, 2018.
Duke Energy Progress received an order on its rate caseorders from the NCUC on February 23, 2018. Some of the major components of the order are: a return on equity of 9.9 percent; recovery of past coal ash remediation costs; recovery of deferred storm costs from 2016;PSCSC and newrevised customer rates in effect mid-March 2018.
became effective June 1, 2019. On May 31, 2019, Duke Energy Carolinas and Duke Energy Progress filed a joint petition withPetitions for Rehearing or Reconsideration regarding certain coal ash costs and return on equity, among other items, and await the Public Service Commission of South Carolina (PSCSC) seeking an order to defer certain costs associated with grid reliability, resiliency, and modernization work that is being performed underorders on reconsideration detailing the Power/Forward initiative.commission's decision. Once the orders are received, Duke Energy Carolinas also petitioned the PSCSC seeking an order to defer certain costs associated with the William States Lee Combined Cycle Facility, the new billing and customer information system and the addition of the Carolinas West Primary Distribution Control Center. Duke Energy Progress also petitionedhave 30 days to file a notice of appeal with the PSCSC seeking an orderSouth Carolina Supreme Court.
On June 11, 2019, the FPSC approved the petition to adopt the new depreciation ratesrecover incremental storm restoration costs for Hurricane Michael and to defer certain costs associated with the deployment of advanced metering infrastructure, the new billing and customer information system and the costs incurred in connection with the excess return of certain state taxes from North Carolina. These petitions were approved on July 25, 2018.
Duke Energy Florida filed a petition with the Florida Public Service Commission (FPSC) on May 31, 2018, related to approximately $200 million of customer savings associated with the Federal Tax Cuts and Jobs Act (Tax Act). Theapply tax savings will offset accelerated depreciation of Crystal River Units 4 and 5 and Hurricane Irma storm cost recovery. The petition is subject to review and approval by the FPSC.
Duke Energy Ohio along with the Public Utilities Commission of Ohio (PUCO) Staff and certain intervenors filed a Stipulation and Recommendation (Stipulation) with PUCO on April 13, 2018, and the evidentiary hearing will conclude on August 6, 2018. The Stipulation, subject to approval by the PUCO, is in connection with Duke Energy Ohio's rate case and other regulatory matters.
On July 25, 2018, Duke Energy Ohio filed an application to establish a new rider to implement the benefits of the Tax Act for electric distribution customers. If approved, the new rider will flow through to customers the benefit of the lower statutory federal tax rate since January 1, 2018, all future benefits of the lower tax rates and a full refund of deferred income taxes collected at the higher tax rates in prior years. Deferred income taxes subject to normalization rules will be refunded consistent with federal law and deferred income taxes not subject to normalization rules will be refunded over a 10-year period. An order is expected before the end of the year.
Duke Energy Kentucky received an order on its rate case from the Kentucky Public Service Commission on April 13, 2018. The order granted an annual revenue increase of $21 million, incorporating customer benefitsresulting from the Tax Act as well as ridertoward storm costs in lieu of implementing a storm surcharge. On June 13, 2019, the FPSC issued its order approving the settlement agreement for storm cost recovery of environmentalrelated to hurricanes Irma and Nate. Storm costs including coal ash. Duke Energy Kentucky implemented new base rates on May 1, 2018.are currently expected to be fully recovered by approximately year-end 2021.
On June 27, 2018,July 2, 2019, Duke Energy Indiana the Indiana Office of Utility Consumers Counselor and others filed testimony consistent with their Stipulation and Settlement Agreement in the federal tax proceedingsa general rate case with the IURC, its first general rate case in Indiana Utility Regulatory Commission (IURC). Major components include ridersin 16 years. Hearings are expected to reflect the lower federal tax rate as they are filedcommence in 2018, baselate 2019 or early 2020, with rates to reflect the lower federal tax rate upon approval, but no later than September 1, 2018, and a timeline for returning federal excess deferred income taxes to customers. The settlement is subject to review and approval by the IURC.be effective in mid-2020.
See Note 3 to the Condensed Consolidated Financial Statements, "Regulatory Matters" for additional information.

PART I

Results of Operations
Non-GAAP Measures
Management’s Discussion and Analysis includes financial information prepared in accordance with generally accepted accounting principles (GAAP)GAAP in the U.S., as well as certain non-GAAP financial measures.measures such as adjusted earnings and adjusted EPS discussed below. Generally, a non-GAAP financial measure is a numerical measure of financial performance, financial position or cash flows that excludes (or includes) amounts that are included in (or excluded from) the most directly comparable measure calculated and presented in accordance with GAAP. Non-GAAP financial measures should be viewed as a supplement to, and not a substitute for, financial measures presented in accordance with GAAP. Non-GAAP measures presented may not be comparable to similarly titled measures used by other companies because other companies may not calculate the measures in the same manner.
Management evaluates financial performance in part based on non-GAAP financial measures, including adjusted earnings and adjusted diluted earnings per share (EPS).EPS. Adjusted earnings and adjusted diluted EPS represent income from continuing operations attributable to Duke Energy common stockholders in dollar and per-share amounts, adjusted for the dollar and per-share impact of special items. As discussed below, special items represent certain charges and credits, which management believes are not indicative of Duke Energy's ongoing performance.
Management believes the presentation of adjusted earnings and adjusted diluted EPS provides useful information to investors, as it provides them with an additional relevant comparison of Duke Energy’s performance across periods. Management uses these non-GAAP financial measures for planning and forecasting and for reporting financial results to the Duke Energy Board of Directors, employees, stockholders, analysts and investors. Adjusted diluted EPS is also used as a basis for employee incentive bonuses. The most directly comparable GAAP measures for adjusted earnings and adjusted diluted EPS are Net Income Attributable to Duke Energy Corporation (GAAPGAAP Reported Earnings)Earnings and DilutedGAAP Reported EPS, Attributable to Duke Energy Corporation common stockholders (GAAP Reported EPS), respectively.
Special items included in the 2018 periods presented below include the following items, which management believes do not reflect ongoing costs:items:
Costs to Achieve Piedmont Merger representrepresents charges that resultresulted from the Piedmont acquisition.

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Regulatory and Legislative Impacts representrepresents charges related to rate case orders, settlements or other actions of regulators or legislative bodies.
Sale of Retired Plant represents the loss associated with selling Beckjord, Generating Station (Beckjord), a nonregulated generating facility in Ohio.
Impairment of Equity Method Investment represents an other-than-temporary impairment (OTTI)OTTI of an investment in Constitution Pipeline Company, LLC (Constitution).Constitution.
Impacts of the Tax Act represents an alternative minimum tax (AMT)AMT valuation allowance recognized related to the Tax Act.
Three Months Ended June 30, 2018,2019, as compared to June 30, 20172018
GAAP Reported EPS was $1.12 for the second quarter of 2019 compared to $0.71 for the second quarter of 2018 compared to $0.98 for the second quarter of 2017.2018. The decreaseincrease in GAAP Reported EPS was primarily due to positive rate case impacts, lower operating expenses and the allocation of losses to noncontrolling tax equity members resulting from the North Rosamond solar farm commencing commercial operations, as well as prior year regulatory and legislative charges related to the Duke Energy Carolinas North Carolina rate case order and the repeal of the South Carolina Base Load Review Act, increased operations and maintenance expense primarily from higher storm costs, higher depreciation and amortization expense from growth in rate base, and increased interest expense due to higher outstanding debt and lower tax shield on holding company interest as a result of the Tax Act. These drivers were partially offset by favorable weather and positive net margin contributions from the Duke Energy Progress North Carolina rate case order.impacts.
As discussed above, management also evaluates financial performance based on adjusted diluted EPS. Duke Energy’s second quarter 2018 adjusted diluted EPS was $0.93 compared to $1.01 for the second quarter of 2017. The decrease in adjusted earnings was primarily due to increased operations and maintenance expense primarily from higher storm costs, higher depreciation and amortization expense from growth in rate base, and increased interest expense due to higher outstanding debt and lower tax shield on holding company interest as a result of the Tax Act. These drivers were partially offset by favorable weather and positive net margin contributions from the Duke Energy Progress North Carolina rate case order.
The following table reconciles non-GAAP measures, including adjusted diluted EPS, to their most directly comparable GAAP measures.
Three Months Ended June 30,Three Months Ended June 30,
2018 20172019 2018
(in millions, except per-share amounts)Earnings EPS Earnings EPSEarnings EPS Earnings EPS
GAAP Reported Earnings/GAAP Reported EPS$500
 $0.71
 $686
 $0.98
$820
 $1.12
 $500
 $0.71
Adjustments:              
Regulatory and Legislative Impacts(a)
136
 0.19
 
 
Costs to Achieve Piedmont Merger(b)
15
 0.02
 19
 0.03
Costs to Achieve Piedmont Merger(a)

 
 15
 0.02
Regulatory and Legislative Impacts(b)

 
 136
 0.19
Discontinued Operations5
 0.01
 2
 

 
 5
 0.01
Adjusted Earnings/Adjusted Diluted EPS$656
 $0.93
 $707
 $1.01
$820
 $1.12
 $656
 $0.93
(a)Net of $43$5 million tax benefit.
(b)Net of $5$43 million tax benefit in 2018 and $11 million tax benefit in 2017.benefit.


PART I

Six Months Ended June 30, 2018,2019, as compared to June 30, 20172018
Duke Energy's GAAP Reported EPS was $2.36 for the six months ended June 30, 2019, compared to $1.59 for the six months ended June 30, 2018, compared to $2.00 for the six months ended June 30, 2017.2018. The decreaseincrease in GAAP Reported EPS was driven byprimarily due to positive rate case impacts, the allocation of losses to noncontrolling tax equity members resulting from the North Rosamond solar farm commencing commercial operations, and an adjustment related to income tax recognition for equity method investments, as well as prior year regulatory and legislative impacts, impairments charges, related to the Duke Energy Carolinas North Carolina rate case orderan AMT valuation allowance and the repeala loss on sale of the South Carolina Base Load Review Act,a retired plant. This was partially offset by higher depreciation and amortization expenseshare dilution from growth in rate base, and increased interest expense due to higher outstanding debt and lower tax shield on holding company interest as a result of the Tax Act. These drivers were partially offset by favorable weather and positive net margin contributions from the Duke Energy Progress North Carolina rate case order.equity issuances.
As discussed above, management also evaluates financial performance based on adjusted diluted EPS. Duke Energy's adjusted diluted EPS for the six months ended June 30, 2018, was $2.22 compared to $2.05 for the six months ended June 30, 2017. The increase in adjusted earnings for the six months ended June 30, 2018, compared to the same period in 2017, was primarily due to favorable weather at Electric Utilities and Infrastructure.
The following table reconciles non-GAAP measures, including adjusted diluted EPS, to their most directly comparable GAAP measures.
Six Months Ended June 30,Six Months Ended June 30,
2018 20172019 2018
(in millions, except per-share amounts)Earnings EPS Earnings EPSEarnings EPS Earnings EPS
GAAP Reported Earnings/GAAP Reported EPS$1,120
 $1.59
 $1,402
 $2.00
$1,720
 $2.36
 $1,120
 $1.59
Adjustments:              
Regulatory and Legislative Impacts(a)
202
 0.29
 
 
Sale of Retired Plant(b)
82
 0.12
 
 
Costs to Achieve Piedmont Merger(a)

 
 28
 0.04
Regulatory and Legislative Impacts(b)

 
 202
 0.29
Sale of Retired Plant(c)

 
 82
 0.12
Impairment of Equity Method Investment(c)(d)

 
 42
 0.06
Impacts of the Tax Act (AMT valuation allowance)76
 0.11
 
 

 
 76
 0.11
Impairment of Equity Method Investment(c)(d)
42
 0.06
 
 
Costs to Achieve Piedmont Merger(d)
28
 0.04
 29
 0.05
Discontinued Operations5
 0.01
 2
 

 
 5
 0.01
Adjusted Earnings/Adjusted Diluted EPS$1,555
 $2.22
 $1,433
 $2.05
$1,720
 $2.36
 $1,555
 $2.22
(a)Net of $9 million tax benefit.
(b)Net of $63 million tax benefit.
(b)(c)Net of $25 million tax benefit.
(c)(d)Net of $13 million tax benefit.
(d)Net of $9 million tax benefit in 2018 and $17 million tax benefit in 2017.
SEGMENT RESULTS
The remaining information presented in this discussion of results of operations is on a GAAP basis. Management evaluates segment performance based on segment income. Segment income is defined as income from continuing operations net of income attributable to noncontrolling interests. Segment income includes intercompany revenues and expenses that are eliminated in the Condensed Consolidated Financial Statements.
Duke Energy's segment structure includes the following segments: Electric Utilities and Infrastructure, Gas Utilities and Infrastructure and Commercial Renewables. The remainder of Duke Energy’s operations is presented as Other. See Note 2 to the Condensed Consolidated Financial Statements, “Business Segments,” for additional information on Duke Energy’s segment structure.
Tax Act
On December 22, 2017, President Trump signed the Tax Act into law. Among other provisions, the Tax Act lowered the corporate federal income tax rate from 35 percent to 21 percent, limits interest deductions outside of regulated utility operations, requires the normalization of excess deferred taxes associated with property under the average rate assumption method as a prerequisite to qualifying for accelerated depreciation and repealed the federal manufacturing deduction. The Tax Act also repealed the corporate AMT and stipulates a refund of 50 percent of remaining AMT credit carryforwards (to the extent the credits exceed regular tax for the year) for tax years 2018, 2019 and 2020 with all remaining AMT credits to be refunded in tax year 2021. The Tax Act also could be amended or subject to technical correction, which could change the financial impacts that were recorded since December 31, 2017, or are expected to be recorded in future periods. The Federal Energy Regulatory Commission (FERC) and state utility commissions will determine the regulatory treatment of the impacts of the Tax Act for the Subsidiary Registrants. Duke Energy's segments’ future results of operations, financial condition and cash flows could be adversely impacted by the Tax Act, subsequent amendments or corrections, or the actions of the FERC, state utility commissions or credit rating agencies related to the Tax Act. Duke Energy is addressing the rate treatment of the Tax Act by each state utility commission in which the Subsidiary Registrants operate. In January 2018, the Subsidiary Registrants began deferring the estimated ongoing impacts of the Tax Act that are expected to be returned to customers. See Note 17 to the Condensed Consolidated Financial Statements, “Income Taxes,” for additional information on the Tax Act.

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MD&ASEGMENT RESULTS - ELECTRIC UTILITIES AND INFRASTRUCTURE


Electric Utilities and Infrastructure
Three Months Ended June 30, Six Months Ended June 30,Three Months Ended June 30, Six Months Ended June 30,
(in millions)2018
 2017
 Variance
 2018
 2017
 Variance
2019
 2018
 Variance
 2019
 2018
 Variance
Operating Revenues$5,223
 $5,158
 $65
 $10,546
 $10,105
 $441
$5,475
 $5,223
 $252
 $10,804
 $10,546
 $258
Operating Expenses                      
Fuel used in electric generation and purchased power1,582
 1,549
 33
 3,267
 3,003
 264
1,662
 1,582
 80
 3,292
 3,267
 25
Operation, maintenance and other1,395
 1,299
 96
 2,720
 2,603
 117
1,318
 1,395
 (77) 2,600
 2,720
 (120)
Depreciation and amortization838
 714
 124
 1,673
 1,451
 222
951
 838
 113
 1,898
 1,673
 225
Property and other taxes279
 270
 9
 553
 531
 22
297
 279
 18
 598
 553
 45
Impairment charges172
 2
 170
 215
 2
 213
4
 172
 (168) 4
 215
 (211)
Total operating expenses4,266
 3,834
 432
 8,428
 7,590
 838
4,232
 4,266
 (34) 8,392
 8,428
 (36)
Gains on Sales of Other Assets and Other, net
 1
 (1) 1
 4
 (3)3
 
 3
 
 1
 (1)
Operating Income957
 1,325
 (368) 2,119
 2,519
 (400)1,246
 957
 289
 2,412
 2,119
 293
Other Income and Expenses91
 110
 (19) 179
 222
 (43)
Other Income and Expenses, net89
 91
 (2) 180
 179
 1
Interest Expense316
 305
 11
 633
 620
 13
330
 316
 14
 668
 633
 35
Income Before Income Taxes732
 1,130
 (398) 1,665
 2,121
 (456)1,005
 732
 273
 1,924
 1,665
 259
Income Tax Expense157
 401
 (244) 340
 757
 (417)196
 157
 39
 365
 340
 25
Segment Income$575
 $729
 $(154) $1,325
 $1,364
 $(39)$809
 $575
 $234
 $1,559
 $1,325
 $234
          

          

Duke Energy Carolinas gigawatt-hours (GWh) sales22,272
 21,243
 1,029
 44,899
 42,024
 2,875
Duke Energy Carolinas GWh sales21,604
 22,272
 (668) 43,432
 44,899
 (1,467)
Duke Energy Progress GWh sales15,896
 15,562
 334
 33,122
 31,199
 1,923
16,222
 15,896
 326
 32,570
 33,122
 (552)
Duke Energy Florida GWh sales10,304
 10,740
 (436) 19,423
 19,045
 378
11,151
 10,304
 847
 19,472
 19,423
 49
Duke Energy Ohio GWh sales6,147
 5,901
 246
 12,219
 11,960
 259
5,660
 6,147
 (487) 11,824
 12,219
 (395)
Duke Energy Indiana GWh sales8,301
 7,972
 329
 16,786
 16,180
 606
7,437
 8,301
 (864) 15,470
 16,786
 (1,316)
Total Electric Utilities and Infrastructure GWh sales62,920
 61,418
 1,502
 126,449
 120,408
 6,041
62,074
 62,920
 (846) 122,768
 126,449
 (3,681)
Net proportional megawatt (MW) capacity in operation    

 49,297
 48,877
 420
Net proportional MW capacity in operation    

 49,725
 49,297
 428
Three Months Ended June 30, 2018,2019, as Comparedcompared to June 30, 20172018
Electric Utilities and Infrastructure’s results were impacted by charges related toa positive contribution from the 2018 Duke Energy Carolinas North Carolina rate case, order, higherDuke Energy Florida's base rate adjustments due to the Citrus County CC being placed in service, favorable weather-normal retail sales volumes and lower operation, maintenance and maintenance expenses and increased depreciation and amortization, partiallyother expense.
These drivers were offset by favorableunfavorable weather compared toin the priorcurrent year, higher depreciation from a growing asset base, higher interest expense and a positive net contribution from the Duke Energy Progress North Carolina rate case.higher income tax expense. The following is a detailed discussion of the variance drivers by line item.
Operating Revenues. The variance was driven primarily by:
an $82 million increase in fuel related revenues due to higher sales volumes and increases in fuel rates billed to customers;
an $81 million increase in retail sales, net of fuel revenues, due to favorable weather in the current year; and
a $43$155 million increase in retail pricing primarily due to the prior year Duke Energy ProgressCarolinas North Carolina rate case.
Partially offset by:case and Duke Energy Florida's base rate adjustments related to Citrus County CC being placed in service;
a $127$66 million decrease due to revenues subject to refund to customers associated with the lower statutory federal corporate tax rate under the Tax Act;increase in fuel related revenues; and
a $5$19 million decreaseincrease in weather-normal retail sales volumes.
Operating Expenses. The variance was driven primarily by:
a $170$168 million increasedecrease in impairment charges primarily due to the impacts associated with the prior year Duke Energy Carolinas North Carolina rate case; and
a $124$77 million decrease in operation, maintenance and other expense primarily due to lower payroll and benefit costs resulting from prior year workforce reductions.
Partially offset by:
a $113 million increase in depreciation and amortization expense primarily due to higher amortization of deferred coal ash costs, additional plant in service and new depreciation rates perassociated with the prior year Duke Energy ProgressCarolinas North Carolina rate case;case and Duke Energy Florida's Citrus County CC being placed in service;
a $96 million increase in operation, maintenance and other expense primarily due to higher operational costs that are recoverable in rates and higher storm costs and amortizations; and
a $33an $80 million increase in fuel used in electric generation and purchased power primarily due to an increase in the North Carolina Renewable Energy and Energy Efficiency Portfolio Standard requirement from the prior year at Duke Energy Progress; and
an $18 million increase in property and other taxes primarily due to higher sales and higher deferred fuel expenses.property taxes for additional plant in service at Duke Energy Florida.


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Other

Interest Expense. The variance was driven primarily by higher debt outstanding in the current year and AFUDC debt return ending in the fourth quarter of 2018 on the Citrus County CC at Duke Energy Florida.
Income and Expenses.Tax Expense. The decreaseincrease in tax expense was primarily due to lower allowance for funds used during construction (AFUDC) equity and a decreasean increase in recognition of post in-service equity returns for projects that had been completed prior to being reflected in customer rates at Duke Energy Carolinas and lowerpretax income from non-service components of employee benefit costspartially offset by an increase in the current year at Duke Energy Progress. For additional information on employee benefit costs, see Note 16 to the Condensed Consolidated Financial Statements, "Employee Benefit Plans."
Income Tax Expense.amortization of excess deferred taxes. The variance was primarily due to the lower statutory federal corporate tax rate under the Tax Act and a decrease in pretax income. The effective tax rates (ETRs)ETRs for the three months ended June 30, 2019, and 2018, and 2017 were 21.419.5 percent and 35.521.4 percent, respectively. The decrease in the ETR was primarily due to the lower statutory federal corporate tax rate under the Tax Act andan increase in the amortization of excess deferred taxes. For additional information, see Note 17 totaxes partially offset by a decrease in AFUDC equity in the Condensed Consolidated Financial Statements, "Income Taxes."current year.
Six Months Ended June 30, 2018,2019, as Comparedcompared to June 30, 20172018
Electric Utilities and Infrastructure’s results were impacted by charges related toa positive contribution from the 2018 Duke Energy Carolinas and Duke Energy Progress North Carolina rate case orderscases, Duke Energy Florida's base rate adjustments due to the Citrus County CC being placed in service and lower operation, maintenance and other expense.
These drivers were offset by unfavorable weather in the current year, higher depreciation from a growing asset base, higher interest expense and higher depreciation and amortization, partially offset by favorable weather compared to the prior year and a positive net contribution from the Duke Energy Progress North Carolina rate case.income tax expense. The following is a detailed discussion of the variance drivers by line item.
Operating Revenues. The variance was driven primarily by:
a $307$330 million increase in retail pricing primarily due to the prior year Duke Energy Carolinas and Duke Energy Progress North Carolina rate cases and Duke Energy Florida's base rate adjustments related to Citrus County CC being placed in service; and
a $34 million increase in fuel related revenues due to higher sales volumes and increases in fuel rates billed to customers;revenues.
Partially offset by:
a $255$76 million increasedecrease in retail sales, net of fuel revenues, due to favorableunfavorable weather in the current year; and
a $73$35 million increasedecrease in retail pricingrider revenues primarily due to excess deferred taxes and energy efficiency programs, partially offset by a decrement rider relating to nuclear decommissioning that ended in the prior year at Duke Energy Carolinas.
Operating Expenses. The variance was driven primarily by:
a $211 million decrease in impairment charges primarily due to the Duke Energy Progress North Carolina rate case and Duke Energy Florida base rate adjustments forimpacts associated with the Osprey acquisition and the completion of the Hines Energy Complex Chiller Uprate Project;
a $24 million increase in weather-normal retail sales volumes; and
a $23 million increase in wholesale power revenues, net of sharing and fuel, primarily due to recovery of coal ash costs atprior year Duke Energy Carolinas and Duke Energy Progress partially offset by customer refundsNorth Carolina rate cases; and
a $120 million decrease in the currentoperation, maintenance and other expense primarily due to lower payroll and benefit costs resulting from prior year related to a FERC order on a complaint filed by the Piedmont Municipal Power Agency (PMPA) at Duke Energy Carolinas.workforce reductions.
Partially offset by:
a $258 million decrease due to revenues subject to refund to customers associated with the lower statutory federal corporate tax rate under the Tax Act.
Operating Expenses. The variance was driven primarily by:
a $264 million increase in fuel used in electric generation and purchased power, due to higher sales and higher deferred fuel expenses;
a $222$225 million increase in depreciation and amortization expense primarily due to higher amortization of deferred coal ash costs, additional plant in service and new depreciation rates per the Duke Energy Progress North Carolina rate case;
a $213 million increase in impairment charges primarily due to the impacts associated with the prior year Duke Energy Carolinas and Duke Energy Progress North Carolina rate cases;cases and Duke Energy Florida's Citrus County CC being placed in service;
a $45 million increase in property and other taxes primarily due to higher property taxes for additional plant in service at Duke Energy Florida and a favorable sales and use tax credit in the prior year at Duke Energy Progress; and
a $117$25 million increase in operation, maintenancefuel used in electric generation and other expensepurchased power primarily due to impacts associated withan increase in the North Carolina Renewable Energy and Energy Efficiency Portfolio Standard requirement from the prior year at Duke Energy Progress North Carolina rate caseProgress.
Interest Expense. The variance was driven primarily by higher debt outstanding in the current year and higher storm cost amortization.AFUDC debt return ending in the fourth quarter of 2018 on the Citrus County CC at Duke Energy Florida.
Other Income and Expenses. Tax Expense.The decreaseincrease in tax expense was primarily due to lower AFUDC equity and loweran increase in pretax income from non-service components of employee benefit costspartially offset by an increase in the current year at Duke Energy Progress. For additional information on employee benefit costs, see Note 16 to the Condensed Consolidated Financial Statements, "Employee Benefit Plans."
Income Tax Expense. The variance was primarily due to the lower statutory federal corporate tax rate under the Tax Act and a decrease in pretax income.amortization of excess deferred taxes. The ETRs for the six months ended June 30, 2019, and 2018, and 2017 were 20.419.0 percent and 35.720.4 percent, respectively. The decrease in the ETR was primarily due to the lower statutory federal corporate tax rate under the Tax Act andan increase in the amortization of excess deferred taxes.taxes partially offset by a decrease in AFUDC equity in the current year.
Matters Impacting Future Electric Utilities and Infrastructure Results
On May 21, 2019, Duke Energy Carolinas and Duke Energy Progress received orders from the PSCSC granting the companies’ requests for retail rate increases but denying recovery of certain coal ash costs. On May 31, 2019, Duke Energy Carolinas and Duke Energy Progress filed Petitions for Rehearing or Reconsideration and await the order on reconsideration detailing the commission's decision. Once the orders are received, Duke Energy Carolinas and Duke Energy Progress have 30 days to file a notice of appeal with the South Carolina Supreme Court. Electric Utilities and Infrastructure's results of operations, financial position and cash flows could be adversely impacted if coal ash costs are not ultimately approved for recovery. See Note 3 to the Condensed Consolidated Financial Statements, "Regulatory Matters," for additional information.

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On May 18, 2016, the North Carolina Department of Environmental Quality (NCDEQ)NCDEQ issued proposed risk classifications for all coal ash surface impoundments in North Carolina. All ash impoundments not previously designated as high priority by the North Carolina Coal Ash Management Act of 2014 (Coal Ash Act) were designated as intermediate risk. Certain impoundments classified as intermediate risk, however, may be reassessed in the futurewere eligible for reassessment as low risk pursuant to legislation enacted on July 14, 2016. Electric UtilitiesOn November 14, 2018, NCDEQ issued final low-risk classifications for these impoundments, indicating that Duke Energy Carolinas and Infrastructure's estimated asset retirement obligations (AROs) relatedDuke Energy Progress have satisfied the permanent replacement water supply and certain dam improvement requirements set out in the Coal Ash Management Act. On April 1, 2019, NCDEQ issued a closure determination requiring Duke Energy Carolinas and Duke Energy Progress to the closure of North Carolinaexcavate all remaining coal ash impoundments are based upon the mandated closure method or a probability weighting of potential closure methods for the impoundments that may be reassessed to low risk. As the final risk ranking classifications in North Carolina, are delineated,even though they had been deemed low risk. On April 26, 2019, Duke Energy Carolinas and Duke Energy Progress filed a Petition for Contested Case Hearings in the Office of Administrative Hearings to challenge NCDEQ's April 1 Order. Duke Energy Carolinas and Duke Energy Progress intend to seek recovery of all costs through the ratemaking process consistent with previous proceedings. As the final closure plans and corrective action measures are developed and approved for each site, the closure work progresses and the closure method scope and remedial action methods are determined, the complexity of work and the amount of coal combustion material could be different than originally estimated and, therefore, could materially impact Electric Utilities and Infrastructure's results of operations, financial position and cash flows.

PART I

See Note 4 to the Condensed Consolidated Financial Statements, "Commitments and Contingencies," for additional information.
Duke Energy is a party to multiple lawsuits and could be subject to fines and other penalties related to operations at certain North Carolina facilities with ash basins. In addition, the orders issued in the Duke Energy Carolinas and Duke Energy Progress North CarolinasCarolina rate cases supporting recovery of past coal ash remediation costs have been appealed by various parties. The outcome of these appeals, lawsuits and potential fines and penalties could have an adverse impact on Electric Utilities and Infrastructure's results of operations, financial position and cash flows. See Notes 3 and 4 to the Condensed Consolidated Financial Statements, "Regulatory Matters" and “Commitments and Contingencies,” respectively, for additional information.
On June 22, 2018, Duke Energy Carolinas received an order from the NCUC, which denied the Grid Rider Stipulation and deferral treatment of Power/Forwardgrid improvement costs. Duke Energy Carolinas may petition for deferral of grid modernization costs outside of a general rate case proceeding if it can show financial hardship or a stipulation that includes greater consensus among intervening parties on costs being classified as grid modernization. While Duke Energy Progress did not request recovery of these costs in its most recent case with the NCUC, Duke Energy Progress may request recovery of certain grid modernization costs in future regulatory proceedings. Electric Utilities and Infrastructure's results of operations, financial position and cash flows could be adversely impacted if grid modernization costs are not ultimately approved for recovery and/or deferral treatment. See Note 3 to
During the Condensed Consolidated Financial Statements, “Regulatory Matters,” for additional information.
On June 30, 2017, CertainTeed Gypsum NC, Inc. (CertainTeed) filed a declaratory judgment action againstlast half of 2018, Duke Energy Carolinas, Duke Energy Progress and Duke Energy Florida’s service territories were impacted by several named storms. Hurricane Florence, Hurricane Michael and Winter Storm Diego caused flooding, extensive damage and widespread power outages to the service territories of Duke Energy Carolinas and Duke Energy Progress. Duke Energy Florida’s service territory was also impacted by Hurricane Michael, a Category 5 hurricane and the most powerful storm to hit the Florida Panhandle in recorded history. A significant portion of the North Carolina Business Court relatingincremental operation and maintenance expenses related to a gypsum supply agreement. In its complaint, CertainTeed sought an order from the court declaring that the minimum amount of gypsumthese storms have been deferred. On December 21, 2018, Duke Energy Carolinas and Duke Energy Progress must providefiled with the NCUC petitions for approval to CertainTeed underdefer the supply agreement is 50,000 tons per month through 2029. The trialincremental storm costs incurred to a regulatory asset for this matter concluded on July 16, 2018. If Duke Energy Progress does not prevail, it will have to either purchase additional gypsum onrecovery in the open market to fulfill its contractual obligation through 2029 or pay some amount of liquidated damages that could have an adverse impact on Electric Utilities and Infrastructure's results of operations, financial position and cash flows. See Note 4 to the Condensed Consolidated Financial Statements, “Commitments and Contingencies,” for additional information.

Duke Energy Florida is constructing the 1,640-MW combined-cycle natural gas plant in Citrus County, Florida, and expects it to be commercially available in 2018. Failure to complete the construction and achieve commercial operations by the end of 2018 or actual costs in excess of the estimated amount not collected from customers could materially impact Electric Utilities and Infrastructure's results of operations, financial position and cash flows. See Note 3 to the Condensed Consolidated Financial Statements, “Regulatory Matters,” for additional information.

next base rate case. On February 6, 2018,June 11, 2019, the FPSC approved a stipulation that would apply tax savings resulting from the Tax Act toward storm costs effective January 2018 in lieu of implementing a storm surcharge. On May 31, 2018, Duke Energy Florida filedFlorida's petition for recovery of theincremental storm costs. Stormrestoration costs are currently expectedrelated to be fully recovered by approximately mid-2021. The evidentiary hearing in this storm cost matter is scheduled for the week of October 15, 2018.Hurricane Michael. An order from regulatory authorities disallowing the deferral and future recovery of thesestorm restoration costs could have an adverse impact on Electric Utilities and Infrastructure's results of operations, financial position and cash flows. See Note 3 to the Condensed Consolidated Financial Statements, “Regulatory"Regulatory Matters," for additional information.
On March 2, 2017, Duke Energy OhioIndiana filed an electric distribution basea general rate applicationcase with the PUCO to address recovery of electric distribution system capital investments and any increase in expenditures subsequent to previous rate cases. On April 13, 2018, Duke Energy Ohio filed a Stipulation with the PUCO to resolve issues in the electric distribution baseIURC on July 2, 2019, its first general rate case and other regulatory matters. If approved by PUCO, the Stipulation would allow for Duke Energy Ohio to recover gains and losses incurred on and after January 1, 2018, related to OVEC, through the Price Stabilization Rider. Hearings will conclude on August 6, 2018.in Indiana in 16 years. The outcome of this rate case could materially impact Electric Utilities and Infrastructure's results of operations, financial position and cash flows could be adversely impacted if the Stipulation is denied by the PUCO.flows. See Note 3 to the Condensed Consolidated Financial Statements, “Regulatory"Regulatory Matters," for additional information.
See "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations," in the Duke Energy Registrants' Annual Reports on Form 10-K/A10-K for the year ended December 31, 2017,2018, for discussion of risks associated with the Tax Act.

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PART I

MD&ASEGMENT RESULTS - GAS UTILITIES AND INFRASTRUCTURE


Gas Utilities and Infrastructure
Three Months Ended June 30, Six Months Ended June 30,Three Months Ended June 30, Six Months Ended June 30,
(in millions)2018
 2017
 Variance
 2018
 2017
 Variance
2019
 2018
 Variance
 2019
 2018
 Variance
Operating Revenues$318
 $301
 $17
 $1,045
 $971
 $74
$306
 $318
 $(12) $1,062
 $1,045
 $17
Operating Expenses                      
Cost of natural gas89
 76
 13
 402
 334
 68
76
 89
 (13) 403
 402
 1
Operation, maintenance and other103
 94
 9
 211
 199
 12
107
 103
 4
 217
 211
 6
Depreciation and amortization60
 57
 3
 121
 114
 7
63
 60
 3
 128
 121
 7
Property and other taxes26
 26
 
 57
 56
 1
27
 26
 1
 60
 57
 3
Total operating expenses278
 253
 25
 791
 703
 88
273
 278
 (5) 808
 791
 17
Operating Income40
 48
 (8) 254
 268
 (14)33
 40
 (7) 254
 254
 
Other Income and Expenses22
 21
 1
 (13) 39
 (52)
Other Income and Expenses, net37
 22
 15
 77
 (13) 90
Interest Expense26
 26
 
 53
 52
 1
27
 26
 1
 57
 53
 4
Income Before Income Taxes36
 43
 (7) 188
 255
 (67)43
 36
 7
 274
 188
 86
Income Tax Expense8
 16
 (8) 44
 95
 (51)3
 8
 (5) 8
 44
 (36)
Segment Income$28
 $27
 $1
 $144
 $160
 $(16)$40
 $28
 $12
 $266
 $144
 $122
      

          

    
Piedmont local distribution company (LDC) throughput (dekatherms)116,839,962
 94,013,754
 22,826,208
 271,741,341
 227,290,541
 44,450,800
Piedmont LDC throughput (dekatherms)104,684,733
 116,839,962
 (12,155,229) 256,350,657
 271,741,341
 (15,390,684)
Duke Energy Midwest LDC throughput (Mcf)15,615,050
 12,204,767
 3,410,283
 52,741,115
 43,035,766
 9,705,349
13,742,907
 15,615,050
 (1,872,143) 52,281,179
 52,741,115
 (459,936)
Three Months Ended June 30, 2018,2019, as Comparedcompared to June 30, 20172018
Gas Utilities and Infrastructure’s results were primarily impacted by favorable weather and volumes, price adjustments and customer growth; offset by unfavorable operations, maintenance and other.higher equity earnings from ACP. The following is a detailed discussion of the variance drivers by line item.
Operating Revenues.The variance was driven by:
an $11 million decrease at Piedmont primarily due to lower residential sales volumes due to unfavorable weather in the current year and a reduction of rates in South Carolina; and
a $13$6 million increasedecrease in the Midwest primarily due to higherlower natural gas costs passed through to customers from higher volumes sold and higher natural gas prices;unfavorable weather in the current year.
Partially offset by:
a $9$4 million increase primarily due to residentialNorth Carolina and commercial customer revenue, netTennessee IMR increases.
Operating Expenses.The variance was driven by:
a $13 million decrease in cost of natural gas costs passed through to customers, due to customer growth and Integrity Management Rider (IMR) rate adjustments at Piedmont; and
a $3 million increase primarily due to favorable weather in the current yearlower volumes sold at Piedmont and higher volumeslower natural gas prices in the Midwest.
Partially offset by:
a $9 million decrease due to revenues subject to refund to customers associated with the lower statutory federal corporate tax rate under the Tax Act.
Operating Expenses.The variance was driven by:
a $13$4 million increase in cost of natural gasoperation, maintenance and other expense primarily due to higher volumes soldemployee benefit expenses and higher natural gas prices;
a $9 million increase in operations, maintenance and other primarily due to increased gas operations and regulated utilities expenses;information technology outside services at Piedmont; and
a $3 million increase in depreciation and amortization expense primarily due to additional plant-in-service.plant in service.
Other Income and Expenses, net. The variance was driven by higher equity earnings from ACP in the current year.
Income Tax Expense. The variancedecrease in tax expense was primarily due to the lower statutory federal corporate tax rate under the Tax Act.current year AFUDC equity, partially offset by an increase in pretax income. The ETRs for the three months ended June 30, 2019, and 2018, and 2017 were 22.27.0 percent and 37.222.2 percent, respectively. The decrease in the ETR was primarily due to the lower statutory corporate tax rate under the Tax Act. For additional information, see Note 17 to the Condensed Consolidated Financial Statements, "Income Taxes."current year AFUDC equity.
Six Months Ended June 30, 2018,2019, as Comparedcompared to June 30, 20172018
Gas Utilities and Infrastructure’s results were primarily impacted by the prior year OTTI recorded on the Constitution investment.investment and a 2019 adjustment related to the income tax recognition for equity method investments. The equity method investment adjustment was immaterial and relates to prior years. The following is a detailed discussion of the variance drivers by line item.
Operating Revenues.The variance was driven by:
an $11 million increase primarily due to North Carolina and Tennessee IMR increases;
a $68$9 million increase primarily due to higher natural gas prices associated with off-system sales; and
an $8 million increase primarily due to NCUC approval related to tax reform accounting from fixed rate contracts.

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MD&ASEGMENT RESULTS - GAS UTILITIES AND INFRASTRUCTURE


Partially offset by:
a $6 million decrease primarily due to a reduction of rates in South Carolina;
a $4 million decrease due to lower natural gas costs passed through to customers in the Midwest, due to higher volumes sold and higherlower natural gas prices; and
a $31$2 million increase primarilydecrease due to residential and commercial customer revenue, net of natural gas costs passed through to customers, due to customer growth, IMR rate adjustments and new power generation customers at Piedmont; and

PART I

a $10 million increase primarily due to favorableunfavorable weather in the current year and higher volumes sold infor the Midwest.
Partially offset by:
a $38 million decrease due to revenues subject to refund to customers associated with the lower statutory federal corporate tax rate under the Tax Act.
Operating Expenses.The variance was driven by:
a $68 million increase in cost of natural gas primarily due to higher volumes sold and higher natural gas prices;
a $12 million increase in operations, maintenance and other primarily due to increased regulated utilities and gas operations expenses; and
a $7 million increase in depreciation and amortization expense primarily due to additional plant-in-service.plant in service;
a $6 million increase in operation, maintenance and other expense primarily due to information technology outside services and higher gas operations labor costs;
a $5 million increase in cost of natural gas at Piedmont primarily due to the impact of higher natural gas prices on off-system sales and unbilled revenue; and
a $3 million increase in property and other taxes primarily due to higher property tax expense related to additional plant in service.
Partially offset by:
a $4 million decrease in cost of natural gas sold in the Midwest primarily due to lower natural gas prices.
Other Income and Expenses. Expenses, net. The decreaseincrease was primarily due to the prior year OTTI recorded foron the Constitution investment in Constitutionand higher earnings from ACP in the current year.
Interest Expense. The variance was driven by higher debt outstanding in the current year and higher interest expense due to customers as a result of tax reform deferrals, partially offset by favorable AFUDC debt interest.
Income Tax Expense.The variancedecrease in tax expense was primarily due to an adjustment related to the lower statutory federal corporateincome tax rate under the Tax Act.recognition for equity method investments and current year AFUDC equity, partially offset by an increase in pretax income. The equity method investment adjustment was immaterial and relates to prior years. The ETRs for the six months ended June 30, 2019, and 2018, and 2017 were 23.42.9 percent and 37.323.4 percent, respectively. The decrease in the ETR was primarily due to the lower statutory federal corporate tax rate under the Tax Act. For additional information, see Note 17an adjustment related to the Condensed Consolidated Financial Statements, "Income Taxes."income tax recognition for equity method investments that was recorded during the first quarter of 2019 and current year AFUDC equity. The equity method investment adjustment was immaterial and relates to prior years.
Matters Impacting Future Gas Utilities and Infrastructure Results
Gas Utilities and Infrastructure has a 47 percent ownership interest in Atlantic Coast Pipeline, LLC (ACP),ACP, which is building an approximately 600-mile interstate natural gas pipeline intended to transport diverse natural gas supplies into southeastern markets. Affected states (West Virginia, Virginia and North Carolina) have issued certain necessary permits; the project remains subject to other pending federal and state approvals, which will allow full construction activities to begin. In early 2018, the FERC issued a series of Partial Notices to Proceed, which authorized the project to begin limitedcertain construction-related activities along the pipeline route. The project hasProject cost estimates are a targeted in-service daterange of late 2019. Due to delays in obtaining the required permits to commence construction and the conditions imposed upon the project by the permits, ACP's project manager estimates the project pipeline development costs will range from $6.0$7.0 billion to $6.5$7.8 billion, excluding financing costs. ACP expects to achieve a late 2020 in-service date for key segments of the project, while it expects the remainder to extend into 2021. Project construction activities, schedule and final costs are still subject to uncertainty due to potential additional permittingabnormal weather, work delays construction productivity(including delays due to judicial or regulatory action) and other conditions and risks that could result in potential higher project costs, a potential delay in the targeted in-service datedates, permanent or temporary suspension of AFUDC and potential impairment charges. ACP and Duke Energy will continue to consider their options with respect to the foregoing in light of their existing contractual and legal obligations. See Notes 3 and 13 to the Condensed Consolidated Financial Statements, "Regulatory Matters" and "Variable Interest Entities," respectively, for additional information.
On November 13, 2013, the PUCO issued an order authorizing recovery of MGP costs at certain sites in Ohio with a deadline to complete the MGP environmental investigation and remediation work prior to December 31, 2016. This deadline was subsequently extended to December 31, 2019. Disallowance of costs incurred, failure to complete the work by the deadline or failure to obtain an extension from the PUCO could result in an adverse impact on Gas Utilities and Infrastructure’s results of operations, financial position and cash flows. See Note 3 to the Condensed Consolidated Financial Statements, “Regulatory Matters,” for additional information.
Piedmont filed a general rate case with the NCUC on April 1, 2019, its first general rate case in North Carolina in six years. The outcome of this rate case could materially impact Gas Utilities and Infrastructure's results of operations, financial position and cash flows. See Note 3 to the Condensed Consolidated Financial Statements, "Regulatory Matters," for additional information.
Rapidly rising interest rates without timely or adequate updates to the regulated allowed return on equity or failure to achieve the anticipated benefits of the Piedmont merger, including cost savings and growth targets, could significantly impact the estimated fair value of reporting units in Gas Utilities and Infrastructure. In the event of a significant decline in the estimated fair value of the reporting units, goodwill impairment charges could be recorded. The carrying value of goodwill within Gas Utilities and Infrastructure was approximately $1,924 million at June 30, 2018.
See "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations," in the Duke Energy Registrants' Annual Reports on Form 10-K/A10-K for the year ended December 31, 2017,2018, for discussion of risks associated with the Tax Act.

106



PART I

Commercial Renewables
 Three Months Ended June 30, Six Months Ended June 30,
(in millions)2018
 2017
 Variance
 2018
 2017
 Variance
Operating Revenues$119
 $110
 $9
 $220
 $238
 $(18)
Operating Expenses           
Operation, maintenance and other69
 58
 11
 124
 136
 (12)
Depreciation and amortization38
 38
 
 76
 77
 (1)
Property and other taxes6
 8
 (2) 13
 17
 (4)
Total operating expenses113
 104
 9
 213
 230
 (17)
Gains on Sales of Other Assets and Other, net
 2
 (2) 
 4
 (4)
Operating Income6
 8
 (2) 7
 12
 (5)
Other Income and Expenses18
 (1) 19
 20
 (1) 21
Interest Expense23
 23
 
 45
 42
 3
Income (Loss) Before Income Taxes1
 (16) 17
 (18) (31) 13
Income Tax Benefit(36) (42) 6
 (75) (81) 6
Less: Loss Attributable to Noncontrolling Interests(1) 
 (1) (1) (1) 
Segment Income$38

$26
 $12
 $58
 $51
 $7
            
Renewable plant production, GWh2,471
 2,231
 240
 4,651
 4,516
 135
Net proportional MW capacity in operation    

 2,951
 2,908
 43
MD&ASEGMENT RESULTS - COMMERCIAL RENEWABLES


Commercial Renewables
 Three Months Ended June 30, Six Months Ended June 30,
(in millions)2019
 2018
 Variance
 2019
 2018
 Variance
Operating Revenues$118
 $119
 $(1) $224
 $220
 $4
Operating Expenses           
Operation, maintenance and other64
 69
 (5) 130
 124
 6
Depreciation and amortization40
 38
 2
 80
 76
 4
Property and other taxes6
 6
 
 12
 13
 (1)
Total operating expenses110
 113
 (3) 222
 213
 9
Operating Income8
 6
 2
 2
 7
 (5)
Other Income and Expenses, net(8) 18
 (26) (10) 20
 (30)
Interest Expense22
 23
 (1) 43
 45
 (2)
(Loss) Income Before Income Taxes(22) 1
 (23) (51) (18) (33)
Income Tax Benefit(24) (36) 12
 (59) (75) 16
Less: Loss Attributable to Noncontrolling Interests(84) (1) (83) (91) (1) (90)
Segment Income$86

$38
 $48
 $99
 $58
 $41
            
Renewable plant production, GWh2,314
 2,471
 (157) 4,382
 4,651
 (269)
Net proportional MW capacity in operation(a)
    

 3,157
 2,951
 206
(a)Certain projects are included in tax equity structures where investors have differing interests in the project's economic attributes. One hundred percent of the tax equity project's capacity is included in the table above.
Three Months Ended June 30, 2018,2019, as Comparedcompared to June 30, 20172018
Commercial Renewables' results were favorably impacted by the bankruptcy court approval of the North Allegheny Windfarm (NAW) and FirstEnergy Solutions (FES) settlement agreement.results from tax equity solar projects, partially offset by mark-to-market losses. The following is a detailed discussion of the variance drivers by line item.
Operating Revenues.Other Income and Expenses, net. The increase in revenuesdecrease was primarily due to an increasemark-to-market losses in the number of engineering, procurement and construction (EPC) agreements at REC Solar, a California-based provider of solar installations owned by Duke Energy.
Operating Expenses. The increase in operation, maintenance and other was primarily due to an increase in the number of EPC agreements at REC Solar and higher solar development spendingportfolio in the current year compared to mark-to-market gains and income from the North Allegheny Wind, LLC and FES settlement agreement in the prior year.
Other Income Tax Benefit. The decrease in the tax benefit was primarily driven by taxes associated with Duke Energy's interest in a tax equity solar project recorded in the second quarter of 2019 and Expenses.a reduction in production tax credits generated.
Loss Attributable to Noncontrolling Interests. The increase in other income and expenses was primarily due to the bankruptcy court approved NAW and FES settlement agreement, which allowed retention of previously collected cash collateral under the purchase power agreements (PPAs) and mark-to-market gains on interest rate swaps.
Income Tax Benefit. The variance was primarily due to a decrease in pretax losses.new tax equity solar projects entered into during 2019.
Six Months Ended June 30, 2018,2019, as Comparedcompared to June 30, 20172018
Commercial Renewables' results were favorably impacted by results from tax equity solar projects, partially offset by mark-to-market losses in the bankruptcy court approval of the NAW and FES settlement agreement.solar portfolio. The following is a detailed discussion of the variance drivers by line item.
Operating Revenues.Other Income and Expenses, net. The decrease was primarily due to mark-to-market losses in the solar portfolio in the current year compared to mark-to-market gains and income from the North Allegheny Wind, LLC and FES settlement agreement in the prior year.
Income Tax Benefit. The decrease in the tax benefit was primarily driven by taxes associated with Duke Energy's interest in a tax equity solar project recorded in the second quarter of 2019 and a reduction in the number of EPC agreements from REC Solar.production tax credits generated.
Operating Expenses. The decrease was primarily dueLoss Attributable to lower operations and maintenance expense from a reduction in the number of EPC agreements at REC Solar and lower property taxes due to non-recurring property tax payments made in the prior year, partially offset by higher solar development spending in the current year.
Other Income and Expenses.Noncontrolling Interests. The increase in other income was primarily due to the bankruptcy court approved NAW and FES settlement agreement, which allowed retention of previously collected cash collateral under the PPAs and mark-to-market gains on interest rate swaps.
Interest Expense. The variance was primarily due to higher debt outstanding as a result of new project financings.
Income Tax Benefit.The variance was primarily due to a decrease in pretax losses.tax equity solar projects entered into during 2019.
Matters Impacting Future Commercial Renewables ResultsResults
Changes or variability in assumptions used in calculatingDuring the fair value of the Commercial Renewables reporting units for goodwill testing purposes, including but not limited to legislative actions related to tax credit extensions, long-term growth rates and discount rates could significantly impact the estimated fair value of the Commercial Renewables reporting units. In the event of a significant decline in the estimated fair value of the Commercial Renewables reporting units, goodwill or other asset impairment charges could be recorded. The carrying value of goodwill within Commercial Renewables was approximately $93 million atthree months ended June 30, 2018.
Persistently low market pricing for wind resources, primarily2019, Duke Energy evaluated recoverability of its renewable merchant plants principally in the Electric Reliability Council of Texas West market, due to declining market pricing and PJM Interconnection, LLC (PJM) westdeclining long-term forecasted energy and capacity prices, primarily driven by lower forecasted natural gas prices. These assets were not impaired; however, a continued decline in pricing would likely result in a future impairment. The carrying value of $160 million for one large wind project in West Texas approximates the aggregate estimated future expirationcash flows from the asset. Impairment of tax incentives including investment tax credits and production tax creditsthese assets could result in adverse impacts to the future results of operations, financial position and cash flows of Commercial Renewables.

PART I

DeteriorationOn April 24, 2019, Duke Energy executed an agreement to sell a minority interest in credit quality resulting in bankruptcya portion of an offtakercertain renewable assets. The portion of power from contractedDuke Energy’s commercial renewables energy portfolio to be sold includes 49 percent of 37 operating wind, orsolar and battery storage assets and 33 percent of 11 operating solar assets couldacross the U.S. Duke Energy Renewable Services, an operations and maintenance business for third-party customers, and REC Solar are not included in the potential transaction. The sale will result in adverse impactspretax proceeds to Duke Energy of $415 million. Duke Energy will retain control of these assets, and, therefore, no gain or loss is expected to be recognized in the future resultsCondensed Consolidated Statements of operations, financial position and cash flows of Commercial Renewables. On March 31, 2018, FES, a subsidiary of FirstEnergy and counterparty to two PPAs with NAW, filed for Chapter 11 bankruptcy. On June 18, 2018, The United States Bankruptcy Court’s Northern District of Ohio Eastern Division approved the Stipulation between FES and NAW. The Stipulation resulted in, among other items, the terminationOperations upon closing of the two PPAs between FEStransaction. Duke Energy will also retain the majority of the remaining tax benefits from the projects. Duke Energy will continue to develop projects, grow its portfolio and NAW, as a result, NAWmanage its renewables assets. The sale is subject to market pricingcustomary closing conditions, including approvals from the FERC, the Public Utility Commission of Texas and the Committee on Foreign Investment in the PJM west market.U.S. The transaction is expected to close in the second half of 2019.

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MD&ASEGMENT RESULTS - COMMERCIAL RENEWABLES


See "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations," in the Duke Energy Registrants' Annual Reports on Form 10-K/A10-K for the year ended December 31, 2017,2018, for discussion of risks associated with the Tax Act.
Other
 Three Months Ended June 30, Six Months Ended June 30,
(in millions)2018
 2017
 Variance
 2018
 2017
 Variance
Operating Revenues$32
 $35
 $(3) $67
 $68
 $(1)
Operating Expenses           
Fuel used in electric generation and purchased power15
 14
 1
 29
 29
 
Operation, maintenance and other3
 19
 (16) 6
 27
 (21)
Depreciation and amortization37
 26
 11
 70
 52
 18
Property and other taxes4
 4
 
 8
 7
 1
Impairment charges
 7
 (7) 
 7
 (7)
Total operating expenses59
 70
 (11) 113
 122
 (9)
Gains (Loss) on Sales of Other Assets and Other, net2
 6
 (4) (99) 11
 (110)
Operating Loss(25) (29) 4
 (145) (43) (102)
Other Income and Expenses, net27
 29
 (2) 41
 50
 (9)
Interest Expense164
 139
 25
 321
 273
 48
Loss Before Income Taxes(162) (139) (23) (425) (266) (159)
Income Tax Benefit(28) (48) 20
 (27) (100) 73
Less: Income Attributable to Noncontrolling Interests2
 3
 (1) 4
 5
 (1)
Net Loss$(136) $(94) $(42) $(402) $(171) $(231)
 Three Months Ended June 30, Six Months Ended June 30,
(in millions)2019
 2018
 Variance
 2019
 2018
 Variance
Operating Revenues$25
 $32
 $(7) $46
 $67
 $(21)
Operating Expenses11
 59
 (48) 39
 113
 (74)
Gains (Losses) on Sales of Other Assets and Other, net
 2
 (2) 
 (99) 99
Operating Income (Loss)14
 (25) 39
 7
 (145) 152
Other Income and Expenses, net30
 27
 3
 74
 41
 33
Interest Expense180
 164
 16
 351
 321
 30
Loss Before Income Taxes(136) (162) 26
 (270) (425) 155
Income Tax Benefit(33) (28) (5) (78) (27) (51)
Less: Net Income Attributable to Noncontrolling Interests
 2
 (2) 
 4
 (4)
Less: Preferred Dividends12
 
 12
 12
 
 12
Net Loss$(115)
$(136) $21
 $(204) $(402) $198
Three Months Ended June 30, 2018,2019, as Comparedcompared to June 30, 20172018
Other's higher net lossThe variance was driven by increasedthe absence in the current year of costs related to the Piedmont acquisition and OVEC fuel expense, offset by higher interest expense. The following is a detailed discussion of the variance drivers by line item.
Operating Expenses. The decrease was primarily due to costs related to the Piedmont acquisition and OVEC fuel expense in the prior year.
Interest Expense. The variance was primarily due to higher short-term interest rates and higher outstanding debt in the current year.
Income Tax Benefit. The increase in the tax benefit was primarily driven by a prior year state rate change and tax levelization, partially offset by a decrease in pretax losses.
Preferred Dividends. The variance was driven by the declaration of the preferred stock dividend on preferred stock issued in 2019.
Six Months Ended June 30, 2019, as compared to June 30, 2018
The variance was driven by the prior year loss on sale of the retired Beckjord station and lower income tax benefit.taxes due to a 2018 adjustment to record a valuation allowance. The following is a detailed discussion of the variance drivers by line item.
Interest Expense. Operating Revenues. Lower operating revenues were due to amounts in the prior year related to Duke Energy Ohio’s entitlement of capacity and energy from OVEC’s power plants. In the current year, the revenues and expenses for OVEC are reflected in the Electric Utilities and Infrastructure segment due to the 2018 PUCO Order that approved Duke Energy to recover or credit amounts through Rider PSR. These amounts are deemed immaterial. Therefore, the prior period amounts were not restated.
Operating Expenses. The variancedecrease was primarily due to an increasecosts associated with the Piedmont acquisition and OVEC fuel expense in long-term debt as well as higher short-term interest rates.the prior year.
Income Tax Benefit.Gains (Losses) on Sales of Other Assets and Other, net. The variance was primarily due to the lower statutory corporate federal income tax rate under the Tax Act, partially offset by an increase in pretax losses. For additional information, see Note 17 to the Condensed Consolidated Financial Statements, "Income Taxes."
Six Months Ended June 30, 2018, as Compared to June 30, 2017
Other's higher net loss was driven by the prior year loss on sale of the retired Beckjord station, higher interest expense and lower income tax benefit. The following is a detailed discussion of the variance drivers by line item.
Gains (Loss) on Sales of Other Assets and Other, net. The variance was driven by the loss on sale of the retired Beckjord station, a nonregulated facility retired during 2014, including the transfer of coal ash basins and other real property and indemnification from any and all potential future claims related to the property, whether arising under environmental laws or otherwise.
Interest Expense. Other Income and Expenses, net. The variance was primarily due to an increase in long-term debt, as well as higher short-term interest rates.returns on investments that fund certain employee benefit obligations.
Income Tax Benefit.Interest Expense. The variance was primarily due to higher short-term interest rates and higher outstanding debt in the current year.
Income Tax Benefit. The increase in the tax benefit was primarily driven by a prior year valuation allowance against AMT credits and the lower statutory corporate federal income tax rate under the Tax Act, partially offset by an increasea decrease in pretax losses. For additional information, see Note 17 to
Preferred Dividends. The variance was driven by the Condensed Consolidated Financial Statements, "Income Taxes."declaration of the preferred stock dividend on preferred stock issued in 2019.

108

Matters Impacting Future Other Results
Included in Other is Duke Energy Ohio's 9 percent ownership interest in the Ohio Valley Electric Corporation (OVEC), which owns 2,256 MW of coal-fired generation capacity. As a counterparty to an inter-company power agreement (ICPA), Duke Energy Ohio has a contractual arrangement to receive entitlements to capacity and energy from OVEC’s power plants through June 2040 commensurate with its power participation ratio, which is equivalent to Duke Energy Ohio's ownership interest. Costs, including fuel, operating expenses, fixed costs, debt amortization and interest expense, are allocated to counterparties to the ICPA, including Duke Energy Ohio, based on their power participation ratio. The value of the ICPA is subject to variability due to fluctuations in power prices and changes in OVEC’s costs of business. On March 31, 2018, FES, a subsidiary of FirstEnergy and an ICPA counterparty with a power participation ratio of 4.85 percent, filed for Chapter 11 bankruptcy,

PART I

MD&ADUKE ENERGY CAROLINAS
which could increase costs allocated to the counterparties. Duke Energy cannot predict the impact of the bankruptcy filing on its OVEC interests. In addition, certain proposed environmental rulemaking costs could result in future increased OVEC cost allocations.
On March 2, 2017, Duke Energy Ohio filed an electric distribution base rate application with the PUCO to address recovery of electric distribution system capital investments and any increase in expenditures subsequent to previous rate cases. On April 13, 2018, Duke Energy Ohio filed a Stipulation with the PUCO to resolve issues in the electric distribution base rate case and other regulatory matters. If approved by PUCO, the Stipulation would allow for Duke Energy Ohio to recover gains and losses incurred on and after January 1, 2018, related to OVEC, through the Price Stabilization Rider and, as a result, Duke Energy Ohio may move its ownership interest to the Electric Utilities and Infrastructure segment. Hearings will conclude on August 6, 2018. See Note 3 to the Condensed Consolidated Financial Statements, “Regulatory Matters” for additional information.
See "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations," in the Duke Energy Registrants' Annual Reports on Form 10-K/A for the year ended December 31, 2017, for discussion of risks associated with the Tax Act.

DUKE ENERGY CAROLINAS
Management’s Discussion and Analysis should be read in conjunction with the accompanying Condensed Consolidated Financial Statements and Notes for the six months ended June 30, 2018,2019, and 20172018, and the Annual Report on Form 10-K/A10-K for the year ended December 31, 2017.2018.
Results of Operations
Six Months Ended June 30,Six Months Ended June 30,
(in millions)2018
 2017
 Variance
2019
 2018
 Variance
Operating Revenues$3,435
 $3,445
 $(10)$3,457
 $3,435
 $22
Operating Expenses          
Fuel used in electric generation and purchased power880
 863
 17
867
 880
 (13)
Operation, maintenance and other950
 978
 (28)881
 950
 (69)
Depreciation and amortization561
 523
 38
663
 561
 102
Property and other taxes147
 139
 8
155
 147
 8
Impairment charges190
 
 190
5
 190
 (185)
Total operating expenses2,728
 2,503
 225
2,571
 2,728
 (157)
Losses on Sales of Other Assets and Other, net(1) 
 (1)
 (1) 1
Operating Income706
 942
 (236)886
 706
 180
Other Income and Expenses, net74
 100
 (26)72
 74
 (2)
Interest Expense217
 206
 11
227
 217
 10
Income Before Income Taxes563
 836
 (273)731
 563
 168
Income Tax Expense123
 293
 (170)137
 123
 14
Net Income$440
 $543
 $(103)$594
 $440
 $154
The following table shows the percent changes in GWh sales and average number of customers. The percentages for retail customer classes represent billed sales only. Total sales includes billed and unbilled retail sales and wholesale sales to incorporated municipalities, public and private utilities and power marketers. Amounts are not weather-normalized.
Increase (Decrease) over prior year20182019

Residential sales14.9(4.7)%
General service sales4.5(1.0)%
Industrial sales(1.21.6)%
Wholesale power sales14.7(15.7)%
Joint dispatch sales3.913.0 %
Total sales6.8(3.3)%
Average number of customers1.52.1 %
Six Months Ended June 30, 2018,2019, as Comparedcompared to June 30, 20172018
Operating Revenues.The variance was driven primarily by:
a $122$106 million decreaseincrease in retail salespricing due to revenues subject to refund to customers associated with the lower statutory federal corporate taximpacts of the prior year North Carolina rate under the Tax Act;
a $47 million decrease in rider revenues primarily related to energy efficiency programs;case and
an $11 million decrease in wholesale power revenues, net of sharing and fuel, primarily due to wholesale customer refunds in the current year related to a FERC order on a complaint filed by the PMPA, partially offset by higher revenues related to recovery of coal ash costs.

PART I

South Carolina rate case.
Partially offset by:
a $126$44 million increasedecrease in retail sales, net of fuel revenues, due to favorableunfavorable weather in the current year; and
a $29$35 million increasedecrease in fuel relatedrider revenues primarily due to higher sales;excess deferred taxes and energy efficiency programs, partially offset by a decrement rider relating to nuclear decommissioning that ended in the prior year.
a $23 million increase in weather-normal retail sales volumes.
Operating Expenses. The variance was driven primarily by:
a $190$185 million increasedecrease in impairment charges primarily due to the impacts of the prior year North Carolina rate order and charges related to coal ash costs in South Carolina;
a $38 million increase in depreciation and amortization primarily due to additional plant in service and higher amortization of deferred coal ash costs, partially offset by lower amortization of certain regulatory assets; and
a $17 million increase in fuel used in electric generation and purchased power primarily due to higher sales.
Partially offset by:
a $28$69 million decrease in operation, maintenance and other expense primarily due to lower energy efficiency programdecreased labor costs, partially offset by higher distribution maintenance costs and higher storm restoration costs.
Other IncomePartially offset by:
a $102 million increase in depreciation and Expenses. The variance wasamortization expense primarily due to lower AFUDC equityadditional plant in service, new depreciation rates associated with the prior year North Carolina rate case and a decrease in recognitionhigher amortization of post in-service equity returns for projects that were completeddeferred coal ash costs associated with the prior to being reflected in customer rates.year North Carolina rate case.
Interest Expense.Expense. The variance was primarily due to higher debt outstanding.outstanding in the current year.

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MD&ADUKE ENERGY CAROLINAS


Income Tax Expense. The varianceincrease in tax expense was primarily due to an increase in pretax income partially offset by an increase in the lower statutory federal corporate tax rate under the Tax Act.amortization of excess deferred taxes. The ETRs for the six months ended June 30, 2019, and 2018, and 2017 were 21.818.7 percent and 35.021.8 percent, respectively. The decrease in the ETR was primarily due to an increase in the lower statutory federal corporate tax rate under the Tax Act and levelization for annual amortization of state excess deferred taxes. For additional information, see
Matters Impacting Future Results
On May 21, 2019, the PSCSC issued an order granting Duke Energy Carolinas request for a retail rate increase but denying recovery of certain coal ash costs. On May 31, 2019, Duke Energy Carolinas filed a Petition for Rehearing or Reconsideration and awaits the order on reconsideration detailing the commission's decision. Once the order is received, Duke Energy Carolinas has 30 days to file a notice of appeal with the South Carolina Supreme Court. Duke Energy Carolinas' results of operations, financial position and cash flows could be adversely impacted if coal ash costs are not ultimately approved for recovery. See Note 173 to the Condensed Consolidated Financial Statements, "Income Taxes."Regulatory Matters,"
Matters Impacting Future Results for additional information.
On May 18, 2016, the NCDEQ issued proposed risk classifications for all coal ash surface impoundments in North Carolina. All ash impoundments not previously designated as high priority by the Coal Ash Act were designated as intermediate risk. Certain impoundments classified as intermediate risk, however, may be reassessed in the futurewere eligible for reassessment as low risk pursuant to legislation enacted on July 14, 2016. On November 14, 2018, NCDEQ issued final low-risk classifications for these impoundments, indicating that Duke Energy Carolinas' estimated AROs relatedCarolinas had satisfied the permanent replacement water supply and certain dam improvement requirements set out in the Coal Ash Management Act. On April 1, 2019, NCDEQ issued a closure determination requiring Duke Energy Carolinas to the closure of North Carolinaexcavate all remaining coal ash impoundments are based upon the mandated closure method or a probability weighting of potential closure methods for the impoundments that may be reassessed to low risk. As the final risk ranking classifications in North Carolina are delineated,Carolina. On April 26, 2019, Duke Energy Carolinas filed a Petition for Contested Case Hearings in the Office of Administrative Hearings to challenge NCDEQ's April 1 Order. Duke Energy Carolinas intends to seek recovery of all costs through the ratemaking process consistent with previous proceedings. As the final closure plans and corrective action measures are developed and approved for each site, the closure work progresses, and the closure method scope and remedial action methods are determined, the complexity of work and the amount of coal combustion material could be different than originally estimated and, therefore, could materially impact Duke Energy Carolinas' results of operations, financial position and cash flows. See Note 4 to the Condensed Consolidated Financial Statements, "Commitments and Contingencies," for additional information.
Duke Energy Carolinas is a party to multiple lawsuits and subject to fines and other penalties related to operations at certain North Carolina facilities with ash basins. In addition, the order issued in the Duke Energy Carolinas North Carolina rate case supporting recovery of past coal ash remediation costs has been appealed by various parties. The outcome of these appeals, lawsuits, fines and penalties could have an adverse impact on Duke Energy Carolinas’ results of operations, financial position and cash flows. See Notes 3 and 4 to the Condensed Consolidated Financial Statements, "Regulatory Matters" and “Commitments and Contingencies,” respectively, for additional information.
On June 22, 2018, Duke Energy Carolinas received an order from the NCUC, which denied the Grid Rider Stipulation and deferral treatment of Power/Forwardgrid improvement costs. Duke Energy Carolinas may petition for deferral of grid modernization costs outside of a general rate case proceeding if it can show financial hardship or a stipulation that includes greater consensus among intervening parties on costs being classified as grid modernization. Duke Energy Carolinas' results of operations, financial position and cash flows could be adversely impacted if grid modernization costs are not ultimately approved for recovery and/or deferral treatment.
During the last half of 2018, Duke Energy Carolinas’ service territory was impacted by several named storms. Hurricane Florence, Hurricane Michael and Winter Storm Diego caused flooding, extensive damage and widespread power outages in the service territory. A significant portion of the incremental operation and maintenance expenses related to these storms have been deferred. On December 21, 2018, Duke Energy Carolinas filed with the NCUC a petition for approval to defer the incremental storm costs incurred to a regulatory asset for recovery in the next base rate case. An order from regulatory authorities disallowing the deferral and future recovery of storm restoration costs could have an adverse impact on Duke Energy Carolinas' results of operations, financial position and cash flows. See Note 3 to the Condensed Consolidated Financial Statements, “Regulatory"Regulatory Matters,” for additional information.
Duke Energy Carolinas is a party to multiple lawsuits and subject to fines and other penalties related to operations at certain North Carolina facilities with ash basins. In addition, the order issued in the Duke Energy Carolinas North Carolinas rate cases supporting recovery of past coal ash remediation costs have been appealed by various parties. The outcome of these appeals, lawsuits, fines and penalties could have an adverse impact on Duke Energy Carolinas’ results of operations, financial position and cash flows. See Notes 3 and 4 to the Condensed Consolidated Financial Statements, "Regulatory Matters" and “Commitments and Contingencies,” respectively," for additional information.
See "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations," in the Duke Energy Registrants' Annual Reports on Form 10-K/A10-K for the year ended December 31, 2017,2018, for discussion of risks associated with the Tax Act.

110



PART I

MD&APROGRESS ENERGY


PROGRESS ENERGY
Management’s Discussion and Analysis should be read in conjunction with the accompanying Condensed Consolidated Financial Statements and Notes for the six months ended June 30, 2018,2019, and 20172018, and the Annual Report on Form 10-K/A10-K for the year ended December 31, 2017.2018.
Results of Operations
Six Months Ended June 30,Six Months Ended June 30,
(in millions)2018
 2017
 Variance
2019
 2018
 Variance
Operating Revenues$5,074
 $4,571
 $503
$5,316
 $5,074
 $242
Operating Expenses          
Fuel used in electric generation and purchased power1,871
 1,557
 314
1,913
 1,871
 42
Operation, maintenance and other1,233
 1,109
 124
1,173
 1,233
 (60)
Depreciation and amortization764
 624
 140
881
 764
 117
Property and other taxes254
 246
 8
280
 254
 26
Impairment charges33
 2
 31

 33
 (33)
Total operating expenses4,155
 3,538
 617
4,247
 4,155
 92
Gains on Sales of Other Assets and Other, net12
 14
 (2)
(Losses) Gains on Sales of Other Assets and Other, net(1) 12
 (13)
Operating Income931
 1,047
 (116)1,068
 931
 137
Other Income and Expenses, net77
 76
 1
65
 77
 (12)
Interest Expense412
 402
 10
438
 412
 26
Income Before Income Taxes596
 721
 (125)695
 596
 99
Income Tax Expense92
 243
 (151)118
 92
 26
Net Income504
 478
 26
577
 504
 73
Less: Net Income Attributable to Noncontrolling Interests4
 5
 (1)
 4
 (4)
Net Income Attributable to Parent$500
 $473
 $27
$577
 $500
 $77
Six Months Ended June 30, 2018,2019, as Comparedcompared to June 30, 20172018
Operating Revenues. The variance was driven primarily by:
a $335$193 million increase in retail pricing primarily due to the impacts of the prior year Duke Energy Progress North Carolina rate case, Duke Energy Florida's base rate adjustments related to Citrus County CC being placed in service and annual increases from the 2017 Settlement Agreement;
a $54 million increase in fuel revenues primarily related revenuesto increased fuel cost recovery due to higherextreme weather in the prior year at Duke Energy Progress;
a $17 million increase in weather-normal retail sales increasesvolumes at Duke Energy Florida;
a $12 million increase in transmission revenues related to the Fixed Bill program at Duke Energy Florida; and
an $11 million increase in rider revenues primarily related to energy efficiency programs at Duke Energy Progress.
Partially offset by:
a $22 million decrease in fuel and capacity revenues primarily due to a decrease in fuel and capacity rates billed to retail customers and increased demand at Duke Energy Florida;
an $86a $14 million increasedecrease in retail rider revenues at Duke Energy Progress primarily related to decreased revenue requirements in the current year; and
a $13 million decrease in retail sales, net of fuel revenues, due to favorableunfavorable weather in the current year;
a $54 million increase in retail pricing due to the impacts of the Duke Energy Progress North Carolina and South Carolina rate cases;
a $50 million increase in wholesale power revenues, net of fuel, primarily due to coal ash recovery in the current year at Duke Energy Progress; and
a $29 million increase in Joint Asset Agency Rider revenues primarily due to the implementation of new base rates.
Partially offset by:
a $65 million decrease in retail sales due to revenues subject to refund to customers associated with the lower statutory federal corporate tax rate under the Tax Act at Duke Energy Progress.
Operating Expenses. The variance was driven primarily by:
a $314$117 million increase in depreciation and amortization expense primarily due to higher amortization of deferred coal ash costs, new depreciation rates associated with the prior year Duke Energy Progress North Carolina rate case and Duke Energy Florida's base rate adjustments related to Citrus County CC being placed in service;
a $42 million increase in fuel used in electric generation and purchased power primarily due to higher sales, higher deferred fuelan increase in the North Carolina Renewable Energy and capacity expenses, and increased purchased power,Energy Efficiency Portfolio Standard requirement from prior year at Duke Energy Progress, partially offset by lower generation costspurchased power at Duke Energy Florida; and
a $140$26 million increase in depreciationproperty and amortizationother taxes primarily due to higher amortization of deferred coal ash costs and new depreciation rates per the North Carolina rate case at Duke Energy Progress, and accelerated depreciation of Crystal River Units 4 and 5 andproperty taxes for additional plant in service at Duke Energy Florida;Florida and a favorable sales and use tax credit in the prior year at Duke Energy Progress.

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MD&APROGRESS ENERGY


Partially offset by:
a $124$60 million increasedecrease in operation, maintenance and other expense primarily due to storm cost amortization at Duke Energy Florida andprior year impacts associated with the Duke Energy Progress North Carolina rate case and lower employee benefit expenses at Duke Energy Progress; and
a $31$33 million increasedecrease in impairment charges primarily due to theprior year impacts associated with the Duke Energy Progress North Carolina rate casecase.
Other Income and Expenses, net. The variance was driven primarily by AFUDC equity return ending on the Citrus County CC in the fourth quarter of 2018 at Duke Energy Florida, partially offset by life insurance proceeds at Duke Energy Progress.
Interest Expense. The variance was driven primarily by AFUDC debt return ending in the fourth quarter of 2018 on the Citrus County CC at Duke Energy Florida.
Income Tax Expense. The varianceincrease in tax expense was primarily due to an increase in pretax income and a decrease in AFUDC equity in the lower statutory federal corporate tax rate under the Tax Act.current year. The ETRs for the six months ended June 30, 2019, and 2018, and 2017 were 15.417.0 percent and 33.715.4 percent, respectively. The decreaseincrease in the ETR was primarily due to a decrease in AFUDC equity in the lower statutory federal corporate taxcurrent year.
Matters Impacting Future Results
On May 21, 2019, the PSCSC issued an order granting Duke Energy Progress' request for a retail rate underincrease but denying recovery of certain coal ash costs. On May 31, 2019, Duke Energy Progress filed a Petition for Rehearing or Reconsideration and awaits the Tax Actorder on reconsideration detailing the commission's decision. Once the order is received, Duke Energy Progress has 30 days to file a notice of appeal with the South Carolina Supreme Court. Progress Energy's results of operations, financial position and levelizationcash flows could be adversely impacted if coal ash costs are not ultimately approved for annual amortization of federal and state excess deferred taxes. For additional information, seerecovery. See Note 173 to the Condensed Consolidated Financial Statements, "Income Taxes."Regulatory Matters,"

PART I

Matters Impacting Future Results for additional information.
On May 18, 2016, the NCDEQ issued proposed risk classifications for all coal ash surface impoundments in North Carolina. All ash impoundments not previously designated as high priority by the Coal Ash Act were designated as intermediate risk. Certain impoundments classified as intermediate risk, however, may be reassessed in the futurewere eligible for reassessment as low risk pursuant to legislation enacted on July 14, 2016. On November 14, 2018, NCDEQ issued final low-risk classifications for these impoundments, indicating that Duke Energy Progress Energy's estimated AROs relatedhad satisfied the permanent replacement water supply and certain dam improvement requirements set out in the Coal Ash Management Act. On April 1, 2019, NCDEQ issued a closure determination requiring Duke Energy Progress to the closure of North Carolinaexcavate all remaining coal ash impoundments are based upon the mandated closure method or a probability weighting of potential closure methods for the impoundments that may be reassessed to low risk. As the final risk ranking classifications in North Carolina are delineated,Carolina. On April 26, 2019, Duke Energy Progress filed a Petition for Contested Case Hearings in the Office of Administrative Hearings to challenge NCDEQ's April 1 Order. Duke Energy Progress intends to seek recovery of all costs through the ratemaking process consistent with previous proceedings. As the final closure plans and corrective action measures are developed and approved for each site, the closure work progresses, and the closure method scope and remedial action methods are determined, the complexity of work and the amount of coal combustion material could be different than originally estimated and, therefore, could materially impact Progress Energy's results of operations, financial position and cash flows. See Note 4 to the Condensed Consolidated Financial Statements, "Commitments and Contingencies," for additional information.
Duke Energy Progress is a party to multiple lawsuits and subject to fines and other penalties related to operations at certain North Carolina facilities with ash basins. As noted above, the order issued in the Duke Energy Progress North CarolinasCarolina rate casescase supporting recovery of past coal ash remediation costs havehas been appealed by various parties. The outcome of these appeals, lawsuits, fines and penalties could have an adverse impact on Progress Energy’s results of operations, financial position and cash flows. See Notes 3 and 4 to the Condensed Consolidated Financial Statements, "Regulatory Matters" and “Commitments and Contingencies,” respectively, for additional information.
Duke Energy Carolinas received an order from the NCUC, which denied the Grid Rider Stipulation and deferral treatment of Power/Forwardgrid improvement costs. The NCUC did allow Duke Energy Carolinas to petition for deferral of grid modernization costs outside of a general rate case proceeding if it can show financial hardship or a stipulation that includes greater consensus among intervening parties on costs being classified as grid modernization. While Duke Energy Progress did not request recovery of these costs in its most recent case with the NCUC, Duke Energy Progress may request recovery of certain grid modernization costs in future regulatory proceedings. If the NCUC were to rule similarly, Progress Energy's results of operations, financial position and cash flows could be adversely impacted if grid modernization costs are not ultimately approved for recovery and/or deferral treatment. See Note 3 to
During the Condensed Consolidated Financial Statements, “Regulatory Matters,” for additional information.
On June 30, 2017, CertainTeed filed a declaratory judgment action againstlast half of 2018, Duke Energy Progress and Duke Energy Florida’s service territories were impacted by several named storms. Hurricane Florence, Hurricane Michael and Winter Storm Diego caused flooding, extensive damage and widespread power outages to the service territory of Duke Energy Progress. Duke Energy Florida’s service territory was also impacted by Hurricane Michael, a Category 5 hurricane and the most powerful storm to hit the Florida Panhandle in recorded history. A significant portion of the North Carolina Business Court relatingincremental operation and maintenance expenses related to a gypsum supply agreement. In its complaint, CertainTeed sought an order from the court declaring that the minimum amount of gypsumthese storms have been deferred. On December 21, 2018, Duke Energy Progress must providefiled with the NCUC a petition for approval to CertainTeed underdefer the supply agreement is 50,000 tons per month through 2029. The trialincremental storm costs incurred to a regulatory asset for this matter concluded on July 16, 2018. If Duke Energy Progress does not prevail, it will have to either purchase additional gypsum onrecovery in the open market to fulfill its contractual obligation through 2029 or pay some amount of liquidated damages that could have an adverse impact on Progress Energy's results of operations, financial position and cash flows. See Note 4 to the Condensed Consolidated Financial Statements, “Commitments and Contingencies,” for additional information.

Duke Energy Florida is constructing the 1,640-MW combined-cycle natural gas plant in Citrus County, Florida, and expects it to be commercially available in 2018. Failure to complete the construction and achieve commercial operations by the end of 2018 or actual costs in excess of the estimated amount not collected from customers could materially impact Progress Energy's results of operations, financial position and cash flows. See Note 3 to the Condensed Consolidated Financial Statements, “Regulatory Matters,” for additional information.
next base rate case. On February 6, 2018,June 11, 2019, the FPSC approved a stipulation that would apply tax savings resulting from the Tax Act toward storm costs effective January 2018 in lieu of implementing a storm surcharge. On May 31, 2018, Duke Energy Florida filedFlorida's petition for recovery of theincremental storm costs. Stormrestoration costs are currently expectedrelated to be fully recovered by approximately mid-2021. The evidentiary hearing in this storm cost matter is scheduled for the week of October 15, 2018.Hurricane Michael. An order from regulatory authorities disallowing the deferral and future recovery of thesestorm restoration costs could have an adverse impact on Progress Energy's results of operations, financial position and cash flows. See Note 3 to the Condensed Consolidated Financial Statements, “Regulatory"Regulatory Matters," for additional information.
See "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations," in the Duke Energy Registrants' Annual Reports on Form 10-K/A10-K for the year ended December 31, 2017,2018, for discussion of risks associated with the Tax Act.

112



PART I

MD&ADUKE ENERGY PROGRESS


DUKE ENERGY PROGRESS
Management’s Discussion and Analysis should be read in conjunction with the accompanying Condensed Consolidated Financial Statements and Notes for the six months ended June 30, 2018,2019, and 20172018, and the Annual Report on Form 10-K/A10-K for the year ended December 31, 2017.2018.
Results of Operations
Six Months Ended June 30,Six Months Ended June 30,
(in millions)2018
 2017
 Variance
2019
 2018
 Variance
Operating Revenues$2,751
 $2,418
 $333
$2,871
 $2,751
 $120
Operating Expenses          
Fuel used in electric generation and purchased power917
 739
 178
994
 917
 77
Operation, maintenance and other756
 704
 52
692
 756
 (64)
Depreciation and amortization470
 354
 116
541
 470
 71
Property and other taxes75
 80
 (5)85
 75
 10
Impairment charges33
 
 33

 33
 (33)
Total operating expenses2,251
 1,877
 374
2,312
 2,251
 61
Gains on Sales of Other Assets and Other, net2
 3
 (1)
 2
 (2)
Operating Income502
 544
 (42)559
 502
 57
Other Income and Expenses, net37
 57
 (20)48
 37
 11
Interest Expense159
 152
 7
158
 159
 (1)
Income Before Income Taxes380
 449
 (69)449
 380
 69
Income Tax Expense64
 148
 (84)77
 64
 13
Net Income$316
 $301
 $15
$372
 $316
 $56
The following table shows the percent changes in GWh sales and average number of customers. The percentages for retail customer classes represent billed sales only. Total sales includes billed and unbilled retail sales and wholesale sales to incorporated municipalities, public and private utilities and power marketers. Amounts are not weather-normalized.
Increase (Decrease) over prior period20182019

Residential sales14.3(7.6)%
General service sales3.2(3.3)%
Industrial sales(0.30.7)%
Wholesale power sales10.9(5.0)%
Joint dispatch sales(9.120.8)%
Total sales6.2(1.7)%
Average number of customers1.51.3 %
Six Months Ended June 30, 2018,2019, as Comparedcompared to June 30, 20172018
Operating Revenues. The variance was driven primarily by:
a $199 million increase in fuel related revenues due to higher retail sales and increases in fuel rates billed to customers;
a $62 million increase in retail sales, net of fuel revenues, due to favorable weather in the current year;
a $54$68 million increase in retail pricing due to the impacts of the prior year North Carolina rate case and the current year South Carolina rate cases;case;
a $50$54 million increase in wholesale powerfuel revenues net ofprimarily related to increased fuel primarilycost recovery due to recovery of coal ash costs;extreme weather in the prior year; and
a $29an $11 million increase in Joint Asset Agency Riderrider revenues primarily duerelated to the implementation of new base rates.energy efficiency programs.
Partially offset by:
a $65$13 million decrease in retail sales, net of fuel revenues, due to revenues subject to refund to customers associated withunfavorable weather in the lower statutory federal corporate tax rate under the Tax Act.current year.
Operating Expenses. The variance was driven primarily by:
a $178$77 million increase in fuel used in electric generation and purchased power primarily due to higher sales anda higher deferred fuel expenses;balance and an increase in the North Carolina Renewable Energy and Energy Efficiency Portfolio Standard requirement from prior year, partially offset by lower demand and changes in generation mix;
a $116$71 million increase in depreciation and amortization expense primarily due to higher amortization of deferred coal ash costs and new depreciation rates perassociated with the prior year North Carolina rate case, partially offset by the amortization credit for the North Carolina rate case;Renewable Energy and Energy Efficiency Portfolio Standard requirement increase from prior year; and
a $52$10 million increase in property and other taxes primarily due to a favorable sales and use tax credit in the prior year.
Partially offset by:
a $64 million decrease in operation, maintenance and other expense primarily due to higher operational costs that are recoverable in rates andprior year impacts associated with the North Carolina rate case;case and lower employee benefit and outage costs; and


PART I
113



MD&ADUKE ENERGY PROGRESS


a $33 million increasedecrease in impairment charges due to theprior year impacts associated with the North Carolina rate case.
Other Income and Expenses. Expenses, net. The variance was driven primarily driven by lower income from non-service components of employment benefit costs. For additional information on employee benefit costs, see Note 16 to the Condensed Consolidated Financial Statements, "Employee Benefit Plans."life insurance proceeds.
Income Tax Expense. The varianceincrease in tax expense was primarily due to the lower statutory federal corporate tax rate under the Tax Act.an increase in pretax income. The ETRs for the six months ended June 30, 2019, and 2018, were 17.1 percent and 2017 were 16.8 percent, respectively.
Matters Impacting Future Results
On May 21, 2019, the PSCSC issued an order granting Duke Energy Progress' request for a retail rate increase but denying recovery of certain coal ash costs. On May 31, 2019, Duke Energy Progress filed a Petition for Rehearing or Reconsideration and 33.0 percent, respectively. The decrease inawaits the ETR was primarily dueorder on reconsideration detailing the commission's decision. Once the order is received, Duke Energy Progress has 30 days to file a notice of appeal with the lower statutory federal corporate tax rate under the Tax ActSouth Carolina Supreme Court. Duke Energy Progress' results of operations, financial position and levelizationcash flows could be adversely impacted if coal ash costs are not ultimately approved for annual amortization of state excess deferred taxes. For additional information, seerecovery. See Note 173 to the Condensed Consolidated Financial Statements, "Income Taxes."Regulatory Matters,"
Matters Impacting Future Results for additional information.
On May 18, 2016, the NCDEQ issued proposed risk classifications for all coal ash surface impoundments in North Carolina. All ash impoundments not previously designated as high priority by the Coal Ash Act were designated as intermediate risk. Certain impoundments classified as intermediate risk, however, may be reassessed in the futurewere eligible for reassessment as low risk pursuant to legislation enacted on July 14, 2016. On November 14, 2018, NCDEQ issued final low-risk classifications for these impoundments, indicating that Duke Energy Progress' estimated AROs relatedProgress had satisfied the permanent replacement water supply and certain dam improvement requirements set out in the Coal Ash Management Act. On April 1, 2019, NCDEQ issued a closure determination requiring Duke Energy Progress to the closure of North Carolinaexcavate all remaining coal ash impoundments are based upon the mandated closure method or a probability weighting of potential closure methods for the impoundments that may be reassessed to low risk. As the final risk ranking classifications in North Carolina are delineated,Carolina. On April 26, 2019, Duke Energy Progress filed a Petition for Contested Case Hearings in the Office of Administrative Hearings to challenge NCDEQ's April 1 Order. Duke Energy Progress intends to seek recovery of all costs through the ratemaking process consistent with previous proceedings. As the final closure plans and corrective action measures are developed and approved for each site, the closure work progresses, and the closure method scope and remedial action methods are determined, the complexity of work and the amount of coal combustion material could be different than originally estimated and, therefore, could materially impact Duke Energy Progress' results of operations, financial position and cash flows. See Note 4 to the Condensed Consolidated Financial Statements, "Commitments and Contingencies," for additional information.
Duke Energy Progress is a party to multiple lawsuits and subject to fines and other penalties related to operations at certain North Carolina facilities with ash basins. As noted above, the order issued in the Duke Energy Progress North CarolinasCarolina rate casescase supporting recovery of past coal ash remediation costs havehas been appealed by various parties. The outcome of these appeals, lawsuits, fines and penalties could have an adverse impact on Duke Energy Progress’ results of operations, financial position and cash flows. See Notes 3 and 4 to the Condensed Consolidated Financial Statements, "Regulatory Matters" and “Commitments and Contingencies,” respectively, for additional information.
Duke Energy Carolinas received an order from the NCUC, which denied the Grid Rider Stipulation and deferral treatment of Power/Forwardgrid improvement costs. The NCUC did allow Duke Energy Carolinas to petition for deferral of grid modernization costs outside of a general rate case proceeding if it can show financial hardship or a stipulation that includes greater consensus among intervening parties on costs being classified as grid modernization. While Duke Energy Progress did not request recovery of these costs in its most recent case with the NCUC, Duke Energy Progress may request recovery of certain grid modernization costs in future regulatory proceedings. If the NCUC were to rule similarly, Duke Energy Progress' results of operations, financial position and cash flows could be adversely impacted if grid modernization costs are not ultimately approved for recovery and/or deferral treatment. See Note 3
During the last half of 2018, Duke Energy Progress' service territory was impacted by several named storms. Hurricane Florence, Hurricane Michael and Winter Storm Diego caused flooding, extensive damage and widespread power outages in the service territory. A significant portion of the incremental operation and maintenance expenses related to the Condensed Consolidated Financial Statements, “Regulatory Matters,” for additional information.
these storms have been deferred. On June 30, 2017, CertainTeed filed a declaratory judgment action againstDecember 21, 2018, Duke Energy Progress filed with the NCUC a petition for approval to defer the incremental storm costs incurred to a regulatory asset for recovery in the North Carolina Business Court relating to a gypsum supply agreement. In its complaint, CertainTeed sought annext base rate case. An order from regulatory authorities disallowing the court declaring that the minimum amountdeferral and future recovery of gypsum Duke Energy Progress must provide to CertainTeed under the supply agreement is 50,000 tons per month through 2029. The trial for this matter concluded on July 16, 2018. If Duke Energy Progress does not prevail, it will have to either purchase additional gypsum on the open market to fulfill its contractual obligation through 2029 or pay some amount of liquidated damages thatstorm restoration costs could have an adverse impact on itsDuke Energy Progress' results of operations, financial position and cash flows. See Note 43 to the Condensed Consolidated Financial Statements, “Commitments and Contingencies,”"Regulatory Matters," for additional information.

See "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations," in the Duke Energy Registrants' Annual Reports on Form 10-K/A10-K for the year ended December 31, 2017,2018, for discussion of risks associated with the Tax Act.

114



PART I

MD&ADUKE ENERGY FLORIDA


DUKE ENERGY FLORIDA
Management’s Discussion and Analysis should be read in conjunction with the accompanying Condensed Consolidated Financial Statements and Notes for the six months ended June 30, 2018,2019, and 20172018, and the Annual Report on Form 10-K/A10-K for the year ended December 31, 2017.2018.
Results of Operations
Six Months Ended June 30,Six Months Ended June 30,
(in millions)2018
 2017
 Variance
2019
 2018
 Variance
Operating Revenues$2,318
 $2,150
 $168
$2,439
 $2,318
 $121
Operating Expenses          
Fuel used in electric generation and purchased power953
 817
 136
919
 953
 (34)
Operation, maintenance and other474
 403
 71
474
 474
 
Depreciation and amortization294
 269
 25
340
 294
 46
Property and other taxes179
 166
 13
196
 179
 17
Impairment charges
 2
 (2)
Total operating expenses1,900
 1,657
 243
1,929
 1,900
 29
Losses on Sales of Other Assets and Other, net(1) 
 (1)
Operating Income418
 493
 (75)509
 418
 91
Other Income and Expenses, net47
 39
 8
25
 47
 (22)
Interest Expense137
 140
 (3)165
 137
 28
Income Before Income Taxes328
 392
 (64)369
 328
 41
Income Tax Expense57
 144
 (87)72
 57
 15
Net Income$271
 $248
 $23
$297
 $271
 $26
The following table shows the percent changes in GWh sales and average number of customers. The percentages for retail customer classes represent billed sales only. Wholesale power sales include both billed and unbilled sales. Total sales includes billed and unbilled retail sales and wholesale sales to incorporated municipalities, public and private utilities and power marketers. Amounts are not weather-normalized.
Increase (Decrease) over prior period20182019

Residential sales4.82.1 %
General service sales1.2 %
Industrial sales(0.26.0)%
Wholesale and other13.95.9 %
Total sales2.00.3 %
Average number of customers1.5 %
Six Months Ended June 30, 2018,2019, as Comparedcompared to June 30, 20172018
Operating Revenues. The variance was driven primarily by:
a $136$125 million increase in retail pricing due to base rate adjustments related to Citrus County CC being placed in service and annual increases from the 2017 Settlement Agreement;
a $17 million increase in weather-normal retail sales volumes driven by residential growth; and
a $12 million increase in other revenues primarily due to increased transmission revenues related to the Fixed Bill program which began later in 2018 and non-regulated products and services revenues.
Partially offset by:
a $22 million decrease in fuel and capacity revenues primarily due to an increasea decrease in fuel and capacity rates billed to retail customers, as well as increased demand;customers; and
a $24$14 million increasedecrease in retail sales, net of fuelrider revenues dueprimarily related to favorable weatherdecreased revenue requirements in the current year.
Operating Expenses. The variance was driven primarily by:
a $136$46 million increase in depreciation and amortization expense primarily due to base rate adjustments related to Citrus County CC being placed in service, other additional plant in service and increases resulting from the 2018 Crystal River Unit 3 nuclear decommissioning cost study; and
a $17 million increase in property and other taxes primarily due to higher property taxes from additional plant in service.
Partially offset by:
a $34 million decrease in fuel used in electric generation and purchased power primarily due to lower purchased power, partially offset by higher deferred fuel and capacity expenses, increased purchased powerexpenses.

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MD&ADUKE ENERGY FLORIDA


Other Income and increased demand, partially offsetExpenses, net. The variance was driven primarily by lower generation costs;AFUDC equity return ending on the Citrus County CC in the fourth quarter of 2018.
a $71 million increaseInterest Expense. The variance was driven primarily by AFUDC debt return ending on the Citrus County CC in operation, maintenancethe fourth quarter of 2018 and other expense primarily due to storm cost amortization;higher debt outstanding in the current year.
a $25 million increase in depreciation and amortization primarily due to accelerated depreciation of Crystal River Units 4 and 5 and additional plant in service, partially offset by decreased ARO depreciation due to the updated Crystal River Unit 3 nuclear decommissioning cost study; and
a $13 million increase in property and other taxes primarily due to higher revenue related taxes.
Income Tax Expense. The varianceincrease in tax expense was primarily due to an increase in pretax income and a decrease in AFUDC equity in the lower statutory federal corporate tax rate under the Tax Act.current year. The ETRs for the six months ended June 30, 2019, and 2018, and 2017 were 17.419.5 percent and 36.717.4 percent, respectively. The decreaseincrease in the ETR was primarily due to a decrease in AFUDC equity in the lower statutory federal corporate tax rate under the Tax Act and levelization for annual amortization of federal excess deferred taxes. For additional information, see Note 17 to the Condensed Consolidated Financial Statements, "Income Taxes."current year.
Matters Impacting Future Results
On October 10, 2018, Hurricane Michael made landfall on Florida's Panhandle as a Category 5 hurricane, the most powerful storm to hit the Florida Panhandle in recorded history. The storm caused significant damage within the service territory of Duke Energy Florida, is constructing the 1,640-MW combined-cycle natural gas plant in Citrus County, Florida, and expects itparticularly from Panama City Beach to be commercially available in 2018. Failure to complete the construction and achieve commercial operations by the end of 2018 or actual costs in excess of the estimated amount not collected from customers could materially impactMexico Beach. Duke Energy Florida’sFlorida has not completed the final accumulation of total estimated storm restoration costs incurred. On June 11, 2019, the FPSC approved Duke Energy Florida's petition for recovery of incremental storm restoration costs related to Hurricane Michael. An order from regulatory authorities disallowing the future recovery of storm restoration costs could have an adverse impact on Duke Energy Florida's financial position, results of operations financial position and cash flows. See Note 3 to the Condensed Consolidated Financial Statements, “Regulatory Matters,” for additional information.

See "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations," in the Duke Energy Registrants' Annual Reports on Form 10-K for the year ended December 31, 2018, for discussion of risks associated with the Tax Act.
PART I
DUKE ENERGY OHIO
Management’s Discussion and Analysis should be read in conjunction with the accompanying Condensed Consolidated Financial Statements and Notes for the six months ended June 30, 2019, and 2018, and the Annual Report on Form 10-K for the year ended December 31, 2018.
Results of Operations

 Six Months Ended June 30,
(in millions)2019
 2018
 Variance
Operating Revenues     
Regulated electric$691
 $682
 $9
Regulated natural gas273
 277
 (4)
Nonregulated electric and other
 24
 (24)
Total operating revenues964
 983
 (19)
Operating Expenses     
Fuel used in electric generation and purchased power – regulated179
 185
 (6)
Fuel used in electric generation and purchased power – nonregulated
 29
 (29)
Cost of natural gas64
 69
 (5)
Operation, maintenance and other255
 261
 (6)
Depreciation and amortization130
 132
 (2)
Property and other taxes158
 145
 13
Total operating expenses786
 821
 (35)
Losses on Sales of Other Assets and Other, net
 (106) 106
Operating Income178
 56
 122
Other Income and Expenses, net15
 14
 1
Interest Expense54
 45
 9
Income Before Income Taxes139
 25
 114
Income Tax Expense23
 4
 19
Net Income$116
 $21
 $95
The following table shows the percent changes in GWh sales of electricity, dekatherms of natural gas delivered and average number of electric and natural gas customers. The percentages for retail customer classes represent billed sales only. Total sales includes billed and unbilled retail sales and wholesale sales to incorporated municipalities, public and private utilities and power marketers. Amounts are not weather-normalized.
 ElectricNatural Gas
Increase (Decrease) over prior year2019
2019
Residential sales(7.2)%(1.4)%
General service sales(3.5)%0.1 %
Industrial sales(2.1)%(1.0)%
Wholesale electric power sales65.3 %n/a
Other natural gas salesn/a
(1.1)%
Total sales(3.2)%(0.9)%
Average number of customers0.6 %0.8 %

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MD&ADUKE ENERGY OHIO


Six Months Ended June 30, 2019, as compared to June 30, 2018
Operating Revenues. The variance was driven primarily by:
a $25 million decrease in fuel related revenues primarily due to a decrease in sales volumes;
a $16 million decrease in rider revenues primarily related to the implementation of new base rates;
a $14 million decrease in retail sales, net of fuel revenues, due to unfavorable weather in the current year;
a $12 million decrease in FTR rider revenues; and
a $6 million decrease in OVEC revenues.
Partially offset by:
a $38 million increase in retail pricing primarily due to rate case impacts; and
a $12 million increase in point-to-point transmission revenues.
Operating Expenses. The variance was driven primarily by:
a $35 million decrease in fuel used in electric generation and purchased power expense due to the prior year outage at East Bend Station and the deferral of OVEC related purchased power costs.
Partially offset by:
a $13 million increase in property and other taxes primarily due to a higher tax base.
Other Income and Expenses, net. The variance was driven primarily by an increase in intercompany money pool interest income.
Losses on Sales of Other Assets and Other, net. The increase was driven by the loss on the prior year sale of Beckjord.
Interest Expense. The variance was driven primarily by higher debt outstanding in the current year.
Income Tax Expense. The increase in tax expense was primarily due to an increase in pretax income. The ETRs for the six months ended June 30, 2019, and 2018, were 16.5 percent and 16.0 percent, respectively.
Matters Impacting Future Results
On February 6, 2018,November 13, 2013, the FPSC approvedPUCO issued an order authorizing recovery of MGP costs at certain sites in Ohio with a stipulation that would apply tax savings resultingdeadline to complete the MGP environmental investigation and remediation work prior to December 31, 2016. This deadline was subsequently extended to December 31, 2019. Disallowance of costs incurred, failure to complete the work by the deadline or failure to obtain an extension from the Tax Act toward storm costs effective January 2018PUCO could result in lieu of implementing a storm surcharge. On May 31, 2018, Duke Energy Florida filed for recovery of the storm costs. Storm costs are currently expected to be fully recovered by approximately mid-2021. The evidentiary hearing in this storm cost matter is scheduled for the week of October 15, 2018. An order disallowing recovery of these costs could have an adverse impact on Duke Energy Florida'sOhio’s results of operations, financial position and cash flows. See Note 3 to the Condensed Consolidated Financial Statements, “Regulatory Matters,” for additional information.
See "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations," in the Duke Energy Registrants' Annual Reports on Form 10-K/A10-K for the year ended December 31, 2017,2018, for discussion of risks associated with the Tax Act.
DUKE ENERGY OHIOINDIANA
Management’s Discussion and Analysis should be read in conjunction with the accompanying Condensed Consolidated Financial Statements and Notes for the six months ended June 30, 2018,2019, and 20172018, and the Annual Report on Form 10-K/A10-K for the year ended December 31, 2017.2018.
Results of Operations
Six Months Ended June 30,Six Months Ended June 30,
(in millions)2018
 2017
 Variance
2019
 2018
 Variance
Operating Revenues     $1,482
 $1,469
 $13
Regulated electric$682
 $665
 $17
Regulated natural gas277
 270
 7
Nonregulated electric and other24
 20
 4
Total operating revenues983
 955
 28
Operating Expenses          
Fuel used in electric generation and purchased power – regulated185
 183
 2
Fuel used in electric generation and purchased power – nonregulated29
 29
 
Cost of natural gas69
 64
 5
Fuel used in electric generation and purchased power486
 458
 28
Operation, maintenance and other261
 263
 (2)377
 378
 (1)
Depreciation and amortization132
 130
 2
263
 256
 7
Property and other taxes145
 139
 6
39
 40
 (1)
Impairment charges
 1
 (1)
Total operating expenses821
 809
 12
1,165
 1,132
 33
Loss on Sales of Other Assets and Other, net(106) 
 (106)
Operating Income56
 146
 (90)317
 337
 (20)
Other Income and Expenses, net14
 10
 4
27
 13
 14
Interest Expense45
 45
 
71
 83
 (12)
Income Before Income Taxes25
 111
 (86)273
 267
 6
Income Tax Expense4
 39
 (35)66
 69
 (3)
Net Income$21
 $72
 $(51)$207
 $198
 $9

117


MD&ADUKE ENERGY INDIANA


The following table shows the percent changes in GWh sales and average number of customers. The percentages for retail customer classes represent billed sales only. Total sales includes billed and unbilled retail sales and wholesale sales to incorporated municipalities, public and private utilities and power marketers. Amounts are not weather-normalized.
 ElectricNatural Gas
Increase (Decrease) over prior year2018
2018
Residential sales14.5 %32.0%
General service sales3.0 %29.2%
Industrial sales(1.6)%15.3%
Wholesale electric power sales(70.9)%n/a
Other natural gas salesn/a
2.7%
Total sales2.2 %22.6%
Average number of customers0.9 %0.9%
Six Months Ended June 30, 2018, as Compared to June 30, 2017
Operating Revenues. The variance was driven primarily by:
a $28 million increase in electric and natural gas retail sales, net of fuel revenues, due to favorable weather in the current year; and
a $13 million increase in financial transmission rights revenues.

PART I

Partially offset by:
a $19 million decrease in regulated revenues due to revenues subject to refund to customers associated with the lower statutory federal corporate tax rate under the Tax Act; and
a $5 million decrease in bulk power marketing sales.
Operating Expenses. The variance was driven primarily by:
a $7 million increase in fuel costs due to higher electric fuel prices and natural gas sales volumes; and
a $6 million increase in property and other taxes primarily due to higher property taxes due to higher plant balances.
Other Income and Expenses. The variance was driven primarily by an increase in AFUDC equity due to higher base spending for transmission and fossil plants and an increase due to the impairment of meters in 2017.
Loss on Sales of Other Assets and Other, net. The decrease was driven by the loss on the sale of Beckjord, a nonregulated facility retired during 2014, including the transfer of coal ash basins and other real property and indemnification from any and all potential future claims related to the property, whether arising under environmental laws or otherwise.
Income Tax Expense. The variance was primarily due to a decrease in pretax income and the lower statutory federal corporate tax rate under the Tax Act. The ETRs for the six months ended June 30, 2018, and 2017 were 16.0 percent and 35.1 percent, respectively. The decrease in the ETR was primarily due to the lower statutory federal corporate tax rate under the Tax Act and an increase in AFUDC equity. For additional information, see Note 17 to the Condensed Consolidated Financial Statements, "Income Taxes."
Matters Impacting Future Results
Duke Energy Ohio has a 9 percent ownership interest in OVEC, which owns 2,256 MW of coal-fired generation capacity. As a counterparty to an ICPA, Duke Energy Ohio has a contractual arrangement to receive entitlements to capacity and energy from OVEC’s power plants through June 2040 commensurate with its power participation ratio, which is equivalent to Duke Energy Ohio’s ownership interest. Costs, including fuel, operating expenses, fixed costs, debt amortization and interest expense, are allocated to counterparties to the ICPA, including Duke Energy Ohio, based on their power participation ratio. The value of the ICPA is subject to variability due to fluctuations in power prices and changes in OVEC’s costs of business. On March 31, 2018, FES, a subsidiary of FirstEnergy and an ICPA counterparty with a power participation ratio of 4.85 percent, filed for Chapter 11 bankruptcy, which could increase costs allocated to the counterparties. Duke Energy Ohio cannot predict the impact of the bankruptcy filing on its OVEC interests. In addition, certain proposed environmental rulemaking costs could result in future increased OVEC cost allocations.
On March 2, 2017, Duke Energy Ohio filed an electric distribution base rate application with the PUCO to address recovery of electric distribution system capital investments and any increase in expenditures subsequent to previous rate cases. On April 13, 2018, Duke Energy Ohio filed a Stipulation with the PUCO to resolve issues in the electric distribution base rate case and other regulatory matters. If approved by PUCO, the Stipulation would allow for Duke Energy Ohio to recover gains and losses incurred on and after January 1, 2018, related to OVEC, through the Price Stabilization Rider. Hearings will conclude on August 6, 2018. Duke Energy Ohio's results of operations, financial position and cash flows could be adversely impacted if the Stipulation is denied by the PUCO. See Note 3 to the Condensed Consolidated Financial Statements, “Regulatory Matters,” for additional information.
See "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations," in the Duke Energy Registrants' Annual Reports on Form 10-K/A for the year ended December 31, 2017, for discussion of risks associated with the Tax Act.
DUKE ENERGY INDIANA
Management’s Discussion and Analysis should be read in conjunction with the accompanying Condensed Consolidated Financial Statements and Notes for the six months ended June 30, 2018, and 2017 and the Annual Report on Form 10-K/A for the year ended December 31, 2017.
Results of Operations
 Six Months Ended June 30,
(in millions)2018
 2017
 Variance
Operating Revenues$1,469
 $1,500
 $(31)
Operating Expenses     
Fuel used in electric generation and purchased power458
 485
 (27)
Operation, maintenance and other378
 369
 9
Depreciation and amortization256
 216
 40
Property and other taxes40
 37
 3
Total operating expenses1,132
 1,107
 25
Operating Income337
 393
 (56)
Other Income and Expenses, net13
 20
 (7)
Interest Expense83
 88
 (5)
Income Before Income Taxes267
 325
 (58)
Income Tax Expense69
 128
 (59)
Net Income$198
 $197
 $1

PART I

The following table shows the percent changes in GWh sales and average number of customers. The percentages for retail customer classes represent billed sales only. Total sales includes billed and unbilled retail sales and wholesale sales to incorporated municipalities, public and private utilities and power marketers. Amounts are not weather-normalized.
Increase (Decrease) over prior year20182019

Residential sales15.8(6.3)%
General service sales2.2(1.7)%
Industrial sales(0.61.6)%
Wholesale power sales(1.033.1)%
Total sales3.7(7.8)%
Average number of customers1.11.3 %
Six Months Ended June 30, 2018,2019, as Comparedcompared to June 30, 20172018
Operating Revenues.The variance was driven primarily by:
a $56$25 million decrease due to revenues subject to refund to customers associated with the lower statutory federal corporate tax rate under the Tax Act;
a $15 million decrease in wholesale power revenues, net of fuel, primarily due to contracts that expired in the prior year; and
a $12 million decreaseincrease in fuel revenues primarily due to lower purchased power costs passed throughhigher fuel rates billed to customers, andpartially offset by lower financial transmission rights revenues.wholesale fuel revenues due to the expiration of a contract with a wholesale customer.
Partially offset by:
a $32$10 million increasedecrease in rate riderretail sales, net of fuel revenues, primarily related to the Edwardsport Integrated Gasification Combined Cycle (IGCC) plant and the Transmission, Distribution and Storage System Improvement Charge rider; and
a $22 million increase in electric sales to retail customers due to favorableunfavorable weather in the current year.year; and
a $1 million decrease in weather-normal retail sales volumes.
Operating Expenses.The variance was driven primarily by:
a $40$28 million increase in depreciation and amortization primarily due to additional plant in service and the deferral of certain asset retirement obligations in the prior year; and
a $9 million increase in operation, maintenance and other expense primarily due to higher transmission costs, grid improvement and customer related costs.
Partially offset by:
a $27 million decrease in fuel used in electric generation and purchased power expense primarily due to lowerhigher amortization of deferred fuel costs and higher purchased power, partially offset by lower natural gas and fuel prices,coal costs; and
a $7 million increase in depreciation and amortization expense primarily due to the regulatory liability related to Edwardsport IGCC plant being fully amortized in the prior year.
Other Income and Expenses, net. The increase was primarily due to life insurance proceeds, a prior year deduction for customer refunds, legal fees and contributions related to the IGCC tax settlement and a prior year true up of executive deferred compensation.
Interest Expense. The variance was primarily due to recording a debt return on the cumulative balance of deferred coal ash spend based on probability of recovery. This adjustment was immaterial and primarily relates to prior years.
Income Tax Expense. The decrease in tax expense was primarily due to an increase in the amortization of excess deferred taxes, partially offset by an increase in internal generation.
Other Income and Expenses. The variance was driven primarily by lower AFUDC equity in the current year.
Income Tax Expense. The variance was primarily due to the lower statutory federal corporate tax rate under the Tax Act.pretax income. The ETRs for the six months ended June 30, 2019, and 2018, and 2017 were 25.824.2 percent and 39.425.8 percent, respectively. The decrease in the ETR was primarily due to an increase in the lower statutory federal corporate tax rate under the Tax Act. For additional information, see Note 17 to the Condensed Consolidated Financial Statements, "Income Taxes."amortization of excess deferred taxes.
Matters Impacting Future Results
On April 17, 2015, the EPA published in the Federal Register a rule to regulate the disposal of CCR from electric utilities as solid waste. Duke Energy Indiana has interpreted the rule to identify the coal ash basin sites impacted and has assessed the amounts of coal ash subject to the rule and a method of compliance. Duke Energy Indiana's interpretation of the requirements of the CCR rule is subject to potential legal challenges and further regulatory approvals, which could result in additional ash basin closure requirements, higher costs of compliance and greater AROs. Additionally, Duke Energy Indiana has retired facilities that are not subject to the CCR rule. Duke Energy Indiana may incur costs at these facilities to comply with environmental regulations or to mitigate risks associated with on-site storage of coal ash. An order from regulatory authorities disallowing recovery of costs related to closure of ash basins could have an adverse impact on Duke Energy Indiana's results of operations, financial position and cash flows. See Note 3 to the Condensed Consolidated Financial Statements, “Regulatory Matters,” for additional information.
Duke Energy Indiana’s costs forIndiana filed a general rate case with the Edwardsport IGCC plant are recovered from retail electric customers via a rider. Duke EnergyIURC on July 2, 2019, its first general rate case in Indiana files cost updates periodically with IURC.in 16 years. The outcome of this rate case could materially impact Duke Energy Indiana's results of operations, financial position and cash flows could be adversely impacted by actions offlows. See Note 3 to the IURC related to IGCC costs.Condensed Consolidated Financial Statements, "Regulatory Matters," for additional information.
See "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations," in the Duke Energy Registrants' Annual Reports on Form 10-K/A10-K for the year ended December 31, 2017,2018, for discussion of risks associated with the Tax Act.

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PART I

MD&APIEDMONT


PIEDMONT
Management’s Discussion and Analysis should be read in conjunction with the Condensed Consolidated Financial Statements and Notes for the six months ended June 30, 20182019, and 20172018, and the Annual Report on Form 10-K/A10-K for the year ended December 31, 2017.2018.
Results of Operations
Six Months Ended June 30,Six Months Ended June 30,
(in millions)2018
 2017
 Variance
2019
 2018
 Variance
Operating Revenues$768
 $701
 $67
$788
 $768
 $20
Operating Expenses          
Cost of natural gas333
 270
 63
338
 333
 5
Operation, maintenance and other167
 153
 14
163
 167
 (4)
Depreciation and amortization78
 71
 7
84
 78
 6
Property and other taxes24
 25
 (1)25
 24
 1
Impairment charges
 7
 (7)
Total operating expenses602
 526
 76
610
 602
 8
Operating Income166
 175
 (9)178
 166
 12
Other Income and Expenses     
Equity in earnings of unconsolidated affiliates3
 5
 (2)
Other income and expenses, net6
 (1) 7
Total other income and expenses9
 4
 5
Other Income and Expenses, net12
 9
 3
Interest Expense41
 39
 2
43
 41
 2
Income Before Income Taxes134
 140
 (6)147
 134
 13
Income Tax Expense32
 53
 (21)32
 32
 
Net Income$102
 $87
 $15
$115
 $102
 $13
The following table shows the percent changes in dekatherms delivered and average number of customers. The percentages for all throughput deliveries represent billed and unbilled sales. Amounts are not weather-normalized.
Increase (Decrease) over prior year20182019

Residential deliveries40.2(8.3)%
Commercial deliveries31.0(5.1)%
Industrial deliveries4.32.0 %
Power generation deliveries18.8(7.9)%
For resale26.04.9 %
Total throughput deliveries19.6(5.7)%
Secondary market volumes(10.27.1)%
Average number of customers1.81.2 %
Due to the margin decoupling mechanism in North Carolina and weather normalization adjustment (WNA) mechanismsthe WNA in South Carolina and Tennessee, changes in throughput deliveries do not have a material impact on Piedmont's revenues or earnings. The margin decoupling mechanism adjusts for variations in residential and commercial use per customer, including those due to weather and conservation. The WNA mechanisms mostly offsetoffsets the impact of weather on bills rendered, but do not ensure precise recovery of approved margin during periods when winter weather is significantly warmer or colder than normal.
Six Months Ended June 30, 2018,2019, as Comparedcompared to June 30, 20172018
Operating Revenues.The variance was driven primarily by:
an $11 million increase primarily due to North Carolina and Tennessee IMR increases;
a $63$9 million increase primarily due to higher natural gas costs passed through to customers due to higher volumes sold and higher natural gas prices;prices associated with increased off-system sales; and
a $31an $8 million increase primarily due to residential and commercial customer revenue, net of natural gas costs passed throughNCUC approval related to customers, customer growth, IMRtax reform accounting from fixed rate adjustments and new power generation customers.contracts.
Partially offset by:
a $27$6 million decrease primarily due to revenues subject to refund to customers associated with the lower statutory federal corporate tax rate under the Tax Act.a reduction of rates in South Carolina.

PART I

Operating Expenses.The variance was driven primarily by:
a $63$6 million increase in depreciation and amortization expense primarily due to additional plant in service; and
a $5 million increase in cost of natural gas primarily due to higher volumes sold andthe impact of higher natural gas prices;
a $14 million increase in operation, maintenanceprices on off-system sales and other primarily due to increased natural gas operations, shared services, corporate governance and costs to achieve merger expenses; and
a $7 million increase in depreciation and amortization due to additional plant in service.unbilled revenue.
Partially offset by:
a $7$4 million decrease in operations, maintenance and other expense primarily due to an impairmentlower labor costs and a portion of software recordedrent expense being charged to shared services in the priorcurrent year.
Income TaxInterest Expense.The variance was primarilydriven by higher debt outstanding in the current year and higher interest expense due to customers as a result of tax reform deferrals, partially offset by favorable AFUDC debt interest.

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Matters Impacting Future Results
Piedmont filed a general rate case with the lower statutory federal corporate taxNCUC on April 1, 2019, its first general rate under the Tax Act.case in North Carolina in six years. The ETRs for the six months ended June 30, 2018,outcome of this rate case could materially impact Piedmont's results of operations, financial position and 2017 were 23.9 percent and 37.9 percent, respectively. The decrease in the ETR was primarily due to the lower statutory federal corporate tax rate under the Tax Act. For additional information, seecash flows. See Note 173 to the Condensed Consolidated Financial Statements, "Income Taxes."Regulatory Matters,"
Matters Impacting Future Results for additional information.
See "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations," in the Duke Energy Registrants' Annual Reports on Form 10-K/A10-K for the year ended December 31, 2017,2018, for discussion of risks associated with the Tax Act.
LIQUIDITY AND CAPITAL RESOURCES
Sources and Uses of Cash
Duke Energy relies primarily upon cash flows from operations, debt and equity issuances and its existing cash and cash equivalents to fund its liquidity and capital requirements. Duke Energy’s capital requirements arise primarily from capital and investment expenditures, repaying long-term debt and paying dividends to shareholders. See Duke Energy’s Annual Report on Form 10-K/A10-K for the year ended December 31, 2017,2018, for a summary and detailed discussion of projected primary sources and uses of cash for 20182019 to 2020.2021.
The Subsidiary Registrants generally maintain minimal cash balances and use short-term borrowings to meet their working capital needs and other cash requirements. The Subsidiary Registrants, excluding Progress Energy (Parent), support their short-term borrowing needs through participation with Duke Energy and certainissued $3.8 billion of its other subsidiaries in a money pool arrangement. The companies with short-term funds may provide short-term loans to affiliates participatingdebt, drew $650 million under this arrangement.
the Duke Energy Progress Term Loan Facility and paid off in full the Subsidiary Registrants, excluding Progress Energy (Parent), may also use short-term debt, including commercial paper and$350 million Piedmont term loan during the money pool, as a bridge to long-term debt financings. The levels of borrowing may vary significantly over the course of the year due to the timing of long-term debt financings and the impact of fluctuations in cash flows from operations. From time to time, Duke Energy’s current liabilities may exceed current assets resulting from the use of short-term debt as a funding source to meet scheduled maturities of long-term debt, as well as cash needs, which can fluctuate due to the seasonality of its business.
Equity Issuance
six months ended June 30, 2019. Refer to Note 14 to the CondensedConsolidated Financial Statements, "Common Stock," for further information regarding Duke Energy's equity issuance.
CREDIT FACILITIES AND REGISTRATION STATEMENTS
Refer to Note 56 to the Condensed Consolidated Financial Statements, "Debt and Credit Facilities," for further information regarding Duke Energy's debt issuances, debt maturities and available credit facilities including the Master Credit Facility.
Shelf Registration
In September 2016,March 2019, Duke Energy filed a registration statement (Form S-3) withissued preferred stock for net proceeds of $973 million. In addition, for the U.S. Securities and Exchange Commission. Under this Form S-3, which is uncapped, thesix months ended June 30, 2019, Duke Energy Registrants, excluding Progress Energy (Parent), may issue debt and other securities in the future at amounts, prices and with terms to be determined at the time of future offerings. The registration statement also allows for the issuanceraised approximately $80 million of common stock by Duke Energy.
In January 2017, Duke Energy amendedequity through its Form S-3 to add Piedmont as a registrant and included in the amendment a prospectus for Piedmont under which it may issue debt securities in the same manner as other Duke Energy Registrants.
DEBT MATURITIES
DRIP. Refer to Note 515 to the CondensedConsolidated Financial Statements, "Debt and Credit Facilities,"Stockholders' Equity," for further information regarding significant components of Current Maturities of Long-Term Debt on the Condensed Consolidated Balance Sheets.
CASH FLOWS FROM OPERATING ACTIVITIES
Cash flows from operations of Electric Utilities and Infrastructure and Gas Utilities and Infrastructure are primarily driven by sales of electricity and natural gas, respectively, and costs of operations. These cash flows from operations are relatively stable and comprise a substantial portion of Duke Energy’s operating cash flows. Weather conditions, working capital and commodity price fluctuations, and unanticipated expenses including unplanned plant outages, storms, legal costs and related settlements, and regulatory orders can affect the timing and level of cash flows from operations.

PART I

Duke Energy believes it has sufficient liquidity resources through the commercial paper markets, and ultimately the Master Credit and Revolving Facilities, to support these operations. Cash flows from operations are subject to a number of other factors, including but not limited to regulatory constraints, economic trends and market volatility (see “Item 1A. Risk Factors,” in the Duke Energy Registrants’ Annual Reports on Form 10-K/A for the year ended December 31, 2017, for additional information).
Restrictive Debt Covenants
The Duke Energy Registrants’ debt and credit agreements contain various financial and other covenants. The Master Credit Facility contains a covenant requiring the debt-to-total capitalization ratio not to exceed 65 percent for all borrowers except Piedmont, and 70 percent for Piedmont. Failure to meet those covenants beyond applicable grace periods could result in accelerated due dates and/or termination of the agreements or sublimits thereto. As of June 30, 2018, each of the Duke Energy Registrants was in compliance with all covenants related to their debt agreements. In addition, some credit agreements may allow for acceleration of payments or termination of the agreements due to nonpayment or acceleration of other significant indebtedness of the borrower or some of its subsidiaries. None of the debt or credit agreements contain material adverse change clauses.Energy's equity issuances.
Credit Ratings
Credit ratings are intended to provide credit lenders a framework for comparingIn May 2019, S&P revised the credit quality of securities and are not a recommendation to buy, sell or hold. The Duke Energy Registrants’ credit ratings are dependent on the rating agencies’ assessments of their ability to meet their debt principal and interest obligations when they come due. If, as a result of market conditions or other factors, the Duke Energy Registrants are unable to maintain current balance sheet strength or if earnings and cash flow outlook materially deteriorate, credit ratings could be negatively impacted.
Moody’s Investors Service, Inc. (Moody’s), Standard & Poor’s Rating Services and Fitch Ratings, Inc. provide credit ratings for various Duke Energy Registrants.
On August 1, 2018, Moody’s revised its ratings outlook for Duke Energy Corporation and Piedmont from negative to stable and forall other Duke Energy OhioRegistrants from positivestable to stable. Moody’s also revised itsnegative, principally due to concerns of weaker financial measures due to 2018 storms, uncertainty over coal ash remediation costs and recovery in the Carolinas, regulatory lag during a period of robust capital spending and delays related to the ACP pipeline. There have been no changes to the credit ratings as follows: Progressof any of the Duke Energy is upgraded from Baa2Registrants during 2019 by any of the rating agencies. Moody's and Fitch continue to Baa1; Piedmont is downgraded from A2 to A3.maintain a stable outlook on Duke Energy Corporation.
Cash Flow Information
The following table summarizes Duke Energy’s cash flows.
 Six Months Ended Six Months Ended
 June 30, June 30,
(in millions) 2018
 2017
 2019
 2018
Cash flows provided by (used in):        
Operating activities $3,302
 $2,800
 $3,056
 $3,302
Investing activities (4,645) (4,344) (5,788) (4,645)
Financing activities 1,265
 1,474
 2,622
 1,265
Net decrease in cash, cash equivalents and restricted cash (78) (70) (110) (78)
Cash, cash equivalents and restricted cash at beginning of period 505
 541
 591
 505
Cash, cash equivalents and restricted cash at end of period $427
 $471
 $481
 $427
OPERATING CASH FLOWS
The following table summarizes key components of Duke Energy’s operating cash flows.
 Six Months Ended Six Months Ended
 June 30, June 30,
(in millions) 2018
 2017
 2019
 2018
 Variance
Net income $1,124
 $1,406
 $1,641
 $1,124
 $517
Non-cash adjustments to net income 3,082
 2,434
 2,921
 3,082
 (161)
Contributions to qualified pension plans (141) 
 
 (141) 141
Payments for asset retirement obligations (245) (272) (336) (245) (91)
Payment for disposal of other assets (105) 
 
 (105) 105
Working capital (413) (768) (1,170) (413) (757)
Net cash provided by operating activities $3,302
 $2,800
 $3,056
 $3,302
 $(246)

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MD&ALIQUIDITY AND CAPITAL RESOURCES


The variance was primarily due to:
a $366$757 million increase in cash outflows from working capital primarily due to fluctuations in coal stock inventory, fluctuations of payables balances due primarily to storm costs and timing and increases in federal tax receivables, partially offset by fluctuations in accounts receivable balances due to higher receivables at December 31, 2018; and
a $91 million increase in payments for asset retirement obligations.
Partially offset by:
a $356 million increase in net income after adjustment for non-cash items due primarily due to favorable weatherincreases in revenues as a result of rate increases in the current period compared to the prior period and increased pricing; and
a $355 million decreaseyear, partially offset by decreases in cash outflows from working capital due primarily to timing of payment of accruals and tax refunds related to federal net operation loss carrybacks.

PART I

Partially offset by:current year non-cash adjustments;
a $141 million increasedecrease in contributions to qualified pension plans; and
a $105 million payment for disposal of Beckjord.Beckjord in the prior year.
INVESTING CASH FLOWS
The following table summarizes key components of Duke Energy’s investing cash flows.
 Six Months Ended Six Months Ended
 June 30, June 30,
(in millions) 2018
 2017
 2019
 2018
 Variance
Capital, investment and acquisition expenditures $(4,515) $(4,218) $(5,627) $(4,515) $(1,112)
Other investing items (130) (126) (161) (130) (31)
Net cash used in investing activities $(4,645) $(4,344) $(5,788) $(4,645) $(1,143)
The variance relates primarily to a $297 millionan increase in capital expenditures due to higher overall investments in regulated generation, natural gasthe Electric Utilities and commercial renewables.Infrastructure, Gas Utilities and Infrastructure and Commercial Renewables segments.
FINANCING CASH FLOWS
The following table summarizes key components of Duke Energy’s financing cash flows.
 Six Months Ended Six Months Ended
 June 30, June 30,
(in millions) 2018
 2017
 2019
 2018
 Variance
Issuances of long-term debt, net $537
 $1,725
 $2,467
 $537
 $1,930
Issuances of common stock 820
 
 27
 820
 (793)
Issuances of preferred stock 973
 
 973
Notes payable and commercial paper 1,131
 981
 324
 1,131
 (807)
Dividends paid (1,199) (1,200) (1,312) (1,199) (113)
Other financing items (24) (32) 143
 (24) 167
Net cash provided by financing activities $1,265
 $1,474
 $2,622
 $1,265
 $1,357
The variance was primarily due to:
a $1,188$973 million decreaseincrease in proceeds from the issuance of preferred stock; and
a $1,930 million increase in proceeds from net issuances of long-term debt primarily due to a prior year financing of $577 million in the Commercial Renewables segment and the timing of issuances and redemptions of long-term debt.
Partially offset by:
an $820$807 million increasedecrease in net proceeds from issuances of notes payable and commercial paper primarily due to the use of proceeds from the preferred stock issuance and increased long-term debt issuances to pay down outstanding commercial paper; and
a $793 million decrease in proceeds from the issuance of common stock.
Summary of Significant Debt Issuances
Referstock due primarily to Note 5 to the Condensed Consolidated Financial Statements, "Debt and Credit Facilities," for further information regarding significant debt issuances.prior year issuances under equity forward agreements.
OTHER MATTERS
Environmental Regulations
The Duke Energy Registrants are subject to federal, state and local regulations regarding air and water quality, hazardous and solid waste disposal, coal ash and other environmental matters. These regulations can be changed from time to time and result in new obligations of the Duke Energy Registrants.
The following sections outline various proposed and recently enacted regulations that may impact the Duke Energy Registrants. Refer to Note 3 to the Condensed Consolidated Financial Statements, "Regulatory Matters," for further information regarding potential plant retirements and regulatory filings related to the Duke Energy Registrants.


PART I
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MD&AOTHER MATTERS
Coal Combustion Residuals
In April 2015, the EPA published a rule to regulate the disposal of CCR from electric utilities as solid waste. The federal regulation classifies CCR as nonhazardous waste and allows for beneficial use of CCR with some restrictions. The regulation applies to all new and existing landfills, new and existing surface impoundments receiving CCR and existing surface impoundments that are no longer receiving CCR but contain liquid located at stations currently generating electricity (regardless of fuel source). The rule establishes requirements regarding landfill design, structural integrity design and assessment criteria for surface impoundments, groundwater monitoring, protection and remedial procedures and other operational and reporting procedures to ensure the safe disposal and management of CCR. Various industry and environmental parties have appealed the EPA's CCR rule in the U.S. Court of Appeals for the District of Columbia (D.C. Circuit Court). On April 18, 2016, the EPA filed a motion with the federal court to settle five issues raised in litigation. On June 14, 2016, the court approved the motion with respect to all of those issues. Duke Energy does not expect a material impact from the settlement or that it will result in additional ARO adjustments. On September 13, 2017, EPA responded to a petition by the Utility Solid Waste Activities Group that the agency would reconsider certain provisions of the final rule, and asked the D.C. Circuit Court to suspend the litigation. The D.C. Circuit Court denied EPA’s petition to suspend the litigation and oral argument was held on November 20, 2017. The court has not issued an order in the matter. Duke Energy cannot predict the outcome of the litigation.
On March 15, 2018, EPA published proposed amendments to the federal CCR rule, including revisions that were required as part of a CCR litigation settlement, as well as changes that the agency considers warranted due to the passage of the Water Infrastructure Improvements for the Nation Act, which provides statutory authority for state and federal permit programs. On July 17, 2018, EPA issued a rule finalizing certain, but not all, elements included in the agency's March 15, 2018, proposal. The final rule revises certain closure deadlines and groundwater protection standards in the CCR rule. It does not change the primary requirements for groundwater monitoring, corrective action, inspections and maintenance, and closure, and thus does not materially affect Duke Energy’s coal ash basin closure plans or compliance obligations under the CCR rule.
In addition to the requirements of the federal CCR regulation, CCR landfills and surface impoundments will continue to be independently regulated by most states. Cost recovery for future expenditures will be pursued through the normal ratemaking process with federal and state utility commissions and via wholesale contracts, which permit recovery of necessary and prudently incurred costs associated with Duke Energy’s regulated operations. For more information, see Note 9, “Asset Retirement Obligations,” in Duke Energy’s Annual Report on Form 10-K/A for the year ended December 31, 2017.
Coal Ash Management Act of 2014
Asset retirement obligationsOn March 26, 2019, NCDEQ granted Duke Energy’s application in part, extending by four months until December 1, 2019, the Coal Ash Act’s closure deadline applicable to the Sutton plant impoundments.
On April 1, 2019, NCDEQ issued a closure determination requiring Duke Energy Carolinas and Duke Energy Progress to excavate all remaining coal ash impoundments at the Allen, Belews Creek, Rogers, Marshall, Mayo and Roxboro facilities in North Carolina. With respect to the final six sites, which NCDEQ has ruled as low risk, science and engineering support a variety of closure methods including capping in place and hybrid cap-in-place as appropriate solutions that protect public health and the environment. On April 26, 2019, Duke Energy Carolinas and Duke Energy Progress filed Petitions for Contested Case Hearings in the Office of Administrative Hearings to challenge NCDEQ’s April 1 Order. For more information, see Note 4, "Commitments and Contingencies," to the Condensed Consolidated Financial Statements.
Duke Energy estimates the undiscounted, unadjusted cost to close the remaining impoundments by excavation, as outlined in the NCDEQ closure determination, will be approximately $4 billion to $5 billion more than the prior project cost estimate of $5.6 billion in the aggregate for the closure for all Duke Energy Carolinas and Duke Energy Progress impoundments. Excavation would likely extend beyond the required federal and state deadlines for impoundment closure. Duke Energy intends to seek recovery of all costs through the ratemaking process consistent with previous proceedings. AROs recorded on the Duke Energy Carolinas and Duke Energy Progress Condensed Consolidated Balance Sheets at June 30, 2018,2019, and December 31, 2017,2018, include the legal obligation for closure of coal ash basins and the disposal of related ash as a result of the Coal Ash Act, the EPA CCR rule and other agreements. The Coal Ash Act requires Duke Energy to undertake dam improvement projects and to provide access to a permanent alternative drinking water source to certain residents within a half-mile of coal ash basin compliance boundaries and to certain other potentially impacted residents. The legislation requires excavation of the Sutton, Riverbend and Dan River basins by August 1, 2019, and Asheville basins by August 1, 2022. Excavation at these sites may include a combination of transfer of coal ash to an engineered landfill or conversion for beneficial use. Basins at the H.F. Lee, Cape Fear and Weatherspoon sites are required to be closed through excavation no later than August 1, 2028. Excavation at these sites can include conversion of the basin to a lined industrial landfill, transfer of ash to an engineered landfill or conversion for beneficial use. The remaining basins are required to be closed no later than December 31, 2024, through conversion to a lined industrial landfill, transfer to an engineered landfill or conversion for beneficial use, unless certain dam improvement projects and alternative drinking water source projects are completed by October 15, 2018. Upon satisfactory completion of these projects, the closure deadline would be extended to December 31, 2029, and could include closure through the combination of a cap system and a groundwater monitoring system.
Additionally, the Coal Ash Act requires the installation and operation of three large-scale coal ash beneficiation projects to produce reprocessed ash for use in the concrete industry. Duke Energy selected the Buck, H.F. Lee and Cape Fear plants for these projects. Closure at these sites is required to be completed no later than December 31, 2029.
The Coal Ash Act includes a variance procedure for compliance deadlines and other issues surrounding the management of CCR and CCR surface impoundments and prohibits cost recovery in customer rates for unlawful discharge of ash impoundment waters occurring after January 1, 2014. The Coal Ash Act leaves the decision on cost recovery determinations related to closure of ash impoundments to the normal ratemaking processes before utility regulatory commissions. Consistent with the requirements of the Coal Ash Act, Duke Energy has submitted comprehensive site assessments and groundwater corrective plans to NCDEQ and will submit to NCDEQ site-specific coal ash impoundment closure plans in advance of closure. These plans and all associated permits must be approved by NCDEQ before closure work can begin.
For more information, see Note 9, “Asset7, "Asset Retirement Obligations,” in Duke Energy’s Annual Report on Form 10-K/A for the year ended December 31, 2017.
Clean Water Act 316(b)
The EPA published the final 316(b) cooling water intake structure rule on August 15, 2014, with an effective date of October 14, 2014. The rule applies to 26 of the electric generating facilities the Duke Energy Registrants own and operate. The rule allows for several options to demonstrate compliance and provides flexibility to the state environmental permitting agencies to make determinations on controls, if any, that will be required for cooling water intake structures. Any required intake structure modifications and/or retrofits are expected to be installed in the 2019 to 2023 time frame. Petitions challenging the rule have been filed by several groups. Oral argument was held on September 14, 2017. On July 23, 2018, the U.S. Court of Appeals for the Second Circuit announced their decision to uphold the 316(b) rule. Duke Energy continues to work with the state environmental permitting agency to implement the rule.

PART I

Steam Electric Effluent Limitations Guidelines
On January 4, 2016, the final Steam Electric Effluent Limitations Guidelines (ELG) rule became effective. The rule establishes new requirements for wastewater streams associated with steam electric power generation and includes more stringent controls for any new coal plants that may be built in the future. As originally written, affected facilities were required to comply between 2018 and 2023, depending on the timing of Clean Water Act (CWA) discharge permits. Most of the steam electric generating facilities the Duke Energy Registrants own are affected sources. The Duke Energy Registrants are well-positioned to meet the majority of the requirements of the rule due to current efforts to convert to dry ash handling. Petitions challenging the rule have been filed by several groups. On March 16, 2015, Duke Energy Indiana filed its own legal challenge to the rule with the Seventh Circuit Court of Appeals specific to the ELG rule focused on the limits imposed on IGCC facilities (gasification wastewater). All challenges to the rule were consolidated in the Fifth Circuit Court of Appeals. On August 22, 2017, the Fifth Circuit Court of Appeals granted EPA’s Motion to Govern Further Proceedings, thereby severing and suspending the claims related to flue gas desulfurization wastewater, bottom ash transport water and gasification wastewater. Claims regarding gasification wastewater were stayed, pending the issuance of the variance to Duke Energy Indiana. Duke Energy Indiana’s federal court challenge to EPA’s Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category remains in abeyance. After a long delay, EPA issued a variance for discharges at Edwardsport of wastewater associated with the gasification process. The variance will be incorporated by the state agency into a new wastewater discharge permit. Once the permit has issued and the time limit for a third-party challenge expires, Duke Energy Indiana will voluntarily dismiss the federal court challenge. The litigation will continue as to claims related to other waste streams.
Separate from the litigation, EPA finalized a rule on September 18, 2017, postponing the earliest applicability date for bottom ash transport water and flue gas desulfurization wastewater from 2018 to 2020 and retaining the end applicability date of 2023. Also, as part of the rule, EPA reiterated its intent to conduct a new rulemaking to review the effluent limitation guidelines for bottom ash transport water and flue gas desulfurization wastewater. EPA projects that a new rule on these two issues will be finalized by late 2020.
The Duke Energy Registrants cannot predict the outcome of these matters.
Estimated Cost and Impacts of Rulemakings
Duke Energy will incur capital expenditures to comply with the environmental regulations and rules discussed above. The following table provides five-year estimated costs, excluding AFUDC, of new control equipment that may need to be installed on existing power plants primarily to comply with the Coal Ash Act requirements for conversion to dry disposal of bottom ash and fly ash, CWA 316(b) and ELGs through December 31, 2022. The table excludes ash basin closure costs recorded in Asset retirement obligations on the Condensed Consolidated Balance Sheets. For more information related to AROs, see Note 9, “Asset Retirement Obligations” in Duke Energy’s Annual Report on Form 10‑K/A for the year ended December 31, 2017.
(in millions)Estimated Cost
Duke Energy$910
Duke Energy Carolinas420
Progress Energy360
Duke Energy Progress260
Duke Energy Florida100
Duke Energy Ohio70
Duke Energy Indiana60
The Duke Energy Registrants also expect to incur increased fuel, purchased power, operation and maintenance and other expenses, in addition to costs for replacement generation for potential coal-fired power plant retirements, as a result of these regulations. Actual compliance costs incurred may be materially different from these estimates due to reasons such as the timing and requirements of EPA regulations and the resolution of legal challenges to the rules. The Duke Energy Registrants intend to seek rate recovery of necessary and prudently incurred costs associated with regulated operations to comply with these regulations.
Cross-State Air Pollution Rule
On September 7, 2016, EPA finalized a revision to the Cross-State Air Pollution Rule (CSAPR); the revised rule is known as the CSAPR Update Rule. The CSAPR Update Rule reduces the CSAPR Phase 2 state ozone season NOX emission budgets for 22 eastern states, including Ohio, Kentucky and Indiana. In the final CSAPR Update Rule, the EPA removed Florida, South Carolina and North Carolina from the ozone season NOx program. Beginning in 2017, Duke Energy Registrants in these states will not be subject to any CSAPR ozone season NOx emission limitations. For the states that remain in the program, the reduced state ozone season NOx emission budgets took effect on May 1, 2017. In Kentucky and Indiana, where Duke Energy Registrants own and operate coal-fired electric generating units (EGUs) subject to the final rule requirements, near-term responses include changing unit dispatch to run certain generating units less frequently and/or purchasing NOx allowances from the trading market. Longer term, upgrading the performance of existing NOx controls is an option. The Indiana Utility Group and the Indiana Energy Association jointly filed a petition for reconsideration asking that the EPA correct errors it made in calculating the Indiana budget and increase the budget accordingly. EPA has yet to act on the petition. Numerous parties have filed petitions with the D.C. Circuit Court challenging various aspects of the CSAPR Update Rule. Final briefs in the case were due April 9, 2018. Oral argument is scheduled for October 3, 2018. The Duke Energy Registrants cannot predict the outcome of these matters.

PART I

Carbon Pollution Standards for New, Modified and Reconstructed Power Plants
On October 23, 2015, the EPA published a final rule in the Federal Register establishing carbon dioxide (CO2) emissions limits for new, modified and reconstructed power plants. The requirements for new plants apply to plants that commenced construction after January 8, 2014. The EPA set an emissions standard for coal units of 1,400 pounds of CO2 per gross MWh, which would require the application of partial carbon capture and storage (CCS) technology for a coal unit to be able to meet the limit. Utility-scale CCS is not currently a demonstrated and commercially available technology for coal-fired EGUs, and therefore the final standard effectively prevents the development of new coal-fired generation. The EPA set a final standard of 1,000 pounds of CO2 per gross MWh for new natural gas combined-cycle units.
On March 28, 2017, President Trump signed an executive order directing EPA to review the rule and determine whether to suspend, revise or rescind it. On the same day, the Department of Justice (DOJ) filed a motion with the D.C. Circuit Court requesting that the court stay the litigation of the rule while it is reviewed by EPA. Subsequent to the DOJ motion, the D.C. Circuit Court canceled oral argument in the case. On August 10, 2017, the court ordered that the litigation be suspended indefinitely. The rule remains in effect pending the outcome of litigation and EPA’s review. EPA has not announced a schedule for completing its review. On July 24, 2018, EPA reported to the court that it plans to send a proposed revised rule to the Office of Management and Budget (OMB) for review in August. The Duke Energy Registrants cannot predict the outcome of these matters but do not expect the impacts of the current final standards will be material to Duke Energy's financial position, results of operations or cash flows.
Clean Power Plan
On October 23, 2015, the EPA published in the Federal Register the final Clean Power Plan (CPP) rule to regulate CO2 emissions from existing fossil fuel-fired EGUs. The CPP established CO2 emission rates and mass cap goals that apply to existing fossil fuel-fired EGUs. Petitions challenging the rule were filed by numerous groups and on February 9, 2016, the Supreme Court issued a stay of the final CPP rule, halting implementation of the CPP until legal challenges are resolved. States in which the Duke Energy Registrants operate have suspended work on the CPP in response to the stay. Oral arguments before 10 of the 11 judges on the D.C. Circuit Court were heard on September 27, 2016. The court has not issued its opinion in the case.
On March 28, 2017, President Trump signed an executive order directing EPA to review the CPP and determine whether to suspend, revise or rescind the rule. On the same day, the DOJ filed a motion with the D.C. Circuit Court requesting that the court stay the litigation of the rule while it is reviewed by EPA. On April 28, 2017, the court issued an order to suspend the litigation for 60 days. On August 8, 2017, the court, on its own motion, extended the suspension of the litigation for an additional 60 days. On October 16, 2017, EPA issued a Notice of Proposed Rulemaking (NPR) to repeal the CPP based on a change to EPA’s legal interpretation of the section of the Clean Air Act on which the CPP was based. The comment period on EPA's NPR ended April 26, 2018. On December 28, 2017, EPA issued an Advance Notice of Proposed Rulemaking (ANPRM) in which it sought public comment on various aspects of a potential CPP replacement rule. The comment period on the ANPRM ended February 26, 2018. On July 9, 2018, EPA sent a proposed CPP replacement rule to the OMB for review; after that review is completed, EPA will issue its proposal for public comment. Litigation of the CPP remains on hold in the D.C. Circuit Court and the February 2016 U.S. Supreme Court stay of the CPP remains in effect. The Duke Energy Registrants cannot predict the outcome of these matters.
Section 126 Petitions
On November 16, 2016, the state of Maryland filed a petition with EPA under Section 126 of the Clean Air Act alleging that 19 power plants, including two that Duke Energy Registrants own and operate, contribute to violations of EPA’s National Ambient Air Quality Standards (NAAQS) for ozone in the state of Maryland. On March 12, 2018, the state of New York filed a petition with EPA, also under Section 126 of the Clean Air Act alleging that over 60 power plants, including four that Duke Energy Registrants own and operate, contribute to violations of EPA’s ozone NAAQS in the state of New York. Both Maryland and New York seek EPA orders requiring the states in which the named power plants operate impose more stringent nitrogen oxide (NOx) emission limitations on the plants. On June 8, 2018, EPA proposed to deny the Maryland petition. EPA is under court order to take final action on the Maryland petition by September 15, 2018. The impact of these petitions could be more stringent requirements for the operation of NOx emission controls at these plants. The Duke Energy Registrants cannot predict the outcome of these matters.
Global Climate Change
For other information on global climate change and the potential impacts on Duke Energy, see “Other Matters” in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Duke Energy’s Annual Report on Form 10-K/A for the year ended December 31, 2017.
North Carolina Legislation
For other information on North Carolina legislation and the potential impacts on Duke Energy, see “Other Matters” in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Duke Energy’s Annual Report on Form 10-K/A for the year ended December 31, 2017.
Liquefied Natural Gas Facility
Piedmont Natural Gas plans to build a liquefied natural gas facility in Robeson County, North Carolina. The project is expected to be completed in the summer of 2021 at a cost of $250 million. Construction will begin in the summer of 2019.
Nuclear Matters
For other information on nuclear matters and the potential impacts on Duke Energy, see “Other Matters” in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Duke Energy’s Annual Report on Form 10-K/A for the year ended December 31, 2017.

PART I

New Accounting Standards
See Note 1" to the Condensed Consolidated Financial Statements, “OrganizationStatements.
Duke Energy has completed excavation of all coal ash at the Riverbend plant and Basiscoal ash regulated by the Coal Ash Act at the Dan River and Sutton plants.
North Carolina Competitive Procurement
Based on an independent evaluation process, Duke Energy will own or purchase a total of Presentation,”551 MW of renewable energy from projects under the North Carolina’s CPRE program. The process used was approved by the NCUC to select projects that would deliver the lowest cost renewable energy for customers. Five Duke Energy projects, totaling about 190 MW, were selected during the competitive bidding process. Duke Energy has completed the contracting process for the winning projects; there will be a discussionsecond tranche for CPRE that is scheduled to occur in the fourth quarter of the impact of new accounting standards.2019.
Off-Balance Sheet Arrangements
During the three and six months ended June 30, 2018,2019, there were no material changes to Duke Energy’s off-balance sheet arrangements. See Note 1213 to the Condensed Consolidated Financial Statements, "Variable Interest Entities," for a discussion of off-balance sheet arrangements regarding ACP. For additional information on Duke Energy’s off-balance sheet arrangements, see “Off-Balance Sheet Arrangements” in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Duke Energy’s Annual Report on Form 10-K/A10-K for the year ended December 31, 2017.2018.
Contractual Obligations
Duke Energy enters into contracts that require payment of cash at certain specified periods, based on certain specified minimum quantities and prices. During the three and six months ended June 30, 2018,2019, there were no material changes in Duke Energy's contractual obligations. For an in-depth discussion of Duke Energy’s contractual obligations, see “Contractual Obligations” and “Quantitative and Qualitative Disclosures about Market Risk” in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Duke Energy’s Annual Report on Form 10-K/A10-K for the year ended December 31, 2017.
Subsequent Events
See Note 18 to the Condensed Consolidated Financial Statements, “Subsequent Events,” for a discussion of subsequent events.2018.
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
During the three and six months ended June 30, 2018,2019, there were no material changes to the Duke Energy Registrants' disclosures about market risk. For an in-depth discussion of the Duke Energy Registrants' market risks, see “Quantitative and Qualitative Disclosures about Market Risk” in Item 7 of the Annual Report on Form 10-K/A10-K for the Duke Energy Registrants.
ITEM 4. CONTROLS AND PROCEDURES
Disclosure Controls and Procedures
Disclosure controls and procedures are controls and other procedures that are designed to ensure that information required to be disclosed by the Duke Energy Registrants in the reports they file or submit under the Securities Exchange Act of 1934 (Exchange Act) areis recorded, processed, summarized and reported, within the time periods specified by the U.S. Securities and Exchange CommissionSEC rules and forms.
Disclosure controls and procedures include, without limitation, controls and procedures designed to provide reasonable assurance that information required to be disclosed by the Duke Energy Registrants in the reports they file or submit under the Exchange Act areis accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.
Under the supervision and with the participation of management, including the Chief Executive Officer and Chief Financial Officer, the Duke Energy Registrants have evaluated the effectiveness of their disclosure controls and procedures (as such term is defined in Rule 13a-15(e) and 15d-15(e) under the Exchange Act) as of June 30, 2018,2019, and, based upon this evaluation, the Chief Executive Officer and Chief Financial Officer have concluded that these controls and procedures are effective in providing reasonable assurance of compliance.

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MD&AOTHER MATTERS


Changes in Internal Control over Financial Reporting
Under the supervision and with the participation of management, including the Chief Executive Officer and Chief Financial Officer, the Duke Energy Registrants have evaluated changes in internal control over financial reporting (as such term is defined in Rules 13a-15(f)13a-15 and 15d-15(f)15d-15 under the Exchange Act) that occurred during the fiscal quarter ended June 30, 2018,2019, and have concluded no change has materially affected, or is reasonably likely to materially affect, internal control over financial reporting.

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PART II. OTHER INFORMATION

OTHER INFORMATION




ITEM 1. LEGAL PROCEEDINGS
For information regarding material legal proceedings, including regulatory and environmental matters, see Note 3, "Regulatory Matters," and Note 4, "Commitments and Contingencies," to the Condensed Consolidated Financial Statements.
Methyl tertiary butyl ether (MTBE) Litigation
On June 19, 2014, For additional information, see Item 3, "Legal Proceedings," in Duke Energy's Annual Report on Form 10-K for the Commonwealth of Pennsylvania filed suit against, among others, Duke Energy Merchants, alleging contamination of waters of the state by MTBE from leaking gasoline storage tanks. MTBE is a gasoline additive intended to increase the oxygen level in gasoline and make it burn cleaner. The lawsuit was moved to federal court and consolidated into an existing multidistrict litigation docket of pending MTBE cases. This suit was settled for an immaterial amount inyear ended December 2017 and dismissed in January31, 2018.
In December 2017, the state of Maryland filed a lawsuit in Baltimore City Circuit Court against Duke Energy Merchants and other defendants alleging contamination of its water supplies from MTBE. Duke Energy cannot predict the outcome of this matter.
ITEM 1A. RISK FACTORS
In addition to the other information set forth in this report, careful consideration should be given to the factors discussed in Part I, “Item 1A. Risk Factors” in the Duke Energy Registrants' Annual Report on Form 10-K/A,10-K for the year ended December 31, 2018, which could materially affect the Duke Energy Registrants’ financial condition or future results.
ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS
None.

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PART II

EXHIBITS


ITEM 6. EXHIBITS
Exhibits filed herein are designated by an asterisk (*). All exhibits not so designated are incorporated by reference to a prior filing, as indicated. Items constituting management contracts or compensatory plans or arrangements are designated by a double asterisk (**). The Companycompany agrees to furnish upon request to the Commissioncommission a copy of any omitted schedules or exhibits upon request on all items designated by a triple asterisk (***).
     Duke   Duke Duke Duke Duke  
Exhibit Duke Energy Progress Energy Energy Energy Energy  
Number Energy Carolinas Energy Progress Florida Ohio Indiana Piedmont
*4.1X              X
4.2

X
*12X              
*10.1X
10.2X
*10.3X
*31.1.1X              
*31.1.2  X            
*31.1.3    X          
*31.1.4      X        
*31.1.5        X      
*31.1.6          X    
*31.1.7            X  

125


EXHIBITS


*31.1.8              X
*31.2.1X              
*31.2.2  X            
*31.2.3    X          
*31.2.4      X        
*31.2.5        X      
*31.2.6          X    
*31.2.7            X  
*31.2.8              X

PART II

*32.1.1X              
*32.1.2  X            
*32.1.3    X          
*32.1.4      X        
*32.1.5        X      
*32.1.6          X    
*32.1.7            X  
*32.1.8              X
*32.2.1X              
*32.2.2  X            
*32.2.3    X          

126


EXHIBITS


*32.2.4      X        
*32.2.5        X      
*32.2.6          X    
*32.2.7            X  
*32.2.8              X
*101.INSXBRL Instance Document.Document (this does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document).X X X X X X X X
*101.SCHXBRL Taxonomy Extension Schema Document.X X X X X X X X
*101.CALXBRL Taxonomy Calculation Linkbase Document.X X X X X X X X
*101.LABXBRL Taxonomy Label Linkbase Document.X X X X X X X X
*101.PREXBRL Taxonomy Presentation Linkbase Document.X X X X X X X X

PART II

*101.DEFXBRL Taxonomy Definition Linkbase Document.X X X X X X X X
The total amount of securities of the registrant or its subsidiaries authorized under any instrument with respect to long-term debt not filed as an exhibit does not exceed 10 percent of the total assets of the registrant and its subsidiaries on a consolidated basis. The registrant agrees, upon request of the SEC, to furnish copies of any or all of such instruments to it.

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PART II

SIGNATURES


SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrants have duly caused this report to be signed on their behalf by the undersigned thereunto duly authorized.
  


DUKE ENERGY CORPORATION
DUKE ENERGY CAROLINAS, LLC
PROGRESS ENERGY, INC.
DUKE ENERGY PROGRESS, LLC
DUKE ENERGY FLORIDA, LLC
DUKE ENERGY OHIO, INC.
DUKE ENERGY INDIANA, LLC
PIEDMONT NATURAL GAS COMPANY, INC.


   
Date:August 2, 20186, 2019/s/ STEVEN K. YOUNG
  Steven K. Young

Executive Vice President and Chief Financial Officer (Principal Financial Officer)

   
Date:August 2, 20186, 2019/s/ DWIGHT L. JACOBS
  Dwight L. Jacobs

Senior Vice President, Chief Accounting Officer,

Tax
and Controller

(Principal Accounting Officer)


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