UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549
Form 10-K
xANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 20112013
¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
  
 For the transition period from ___________________ to __________________
  
 Commission File Number 1-07978

BLACK HILLS POWER, INC.
Incorporated in South Dakota IRS Identification Number 46-0111677
625 Ninth Street, Rapid City, South Dakota 57701
   
Registrant'sRegistrant’s telephone number, including area code: (605) 721-1700
   
Securities registered pursuant to Section 12(b) of the Act: None
   
Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.
Yes    x    No    ¨

Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.
Yes    x    No    ¨

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.
Yes    x    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).
Yes    x    No    ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of Registrant'sRegistrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.
This paragraph is not applicable to the Registrant.        x

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company (as defined in Rule 12b-2 of the Exchange Act).
Large accelerated filer    ¨    Accelerated filer    ¨    Non-accelerated filer    x     Smaller reporting company    ¨

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
Yes    ¨    No    x

State the aggregate market value of the voting stock held by non-affiliates of the Registrant.

All outstanding shares are held by the Registrant'sRegistrant’s parent company, Black Hills Corporation. Accordingly, the aggregate market value of the voting common stock of the Registrant held by non-affiliates is $0.

Indicate the number of shares outstanding of each of the Registrant'sRegistrant’s classes of common stock, as of the latest practicable date.
ClassOutstanding at February 29, 2012January 31, 2014
Common stock, $1.00 par value23,416,396 shares

Reduced Disclosure
The Registrant meets the conditions set forth in General Instruction I (1) (a) and (b) of Form 10-K and is therefore filing this Form 10-K with the reduced disclosure format.


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TABLE OF CONTENTS
   
  Page
   
 GLOSSARY OF TERMS AND ABBREVIATIONS
   
ITEMS 1. and 2.BUSINESS AND PROPERTIES
 Safe Harbor for Forward Looking Information
General and Regulations
  
ITEM 1A.RISK FACTORS
   
ITEM 1B.UNRESOLVED STAFF COMMENTS
   
ITEM 3.LEGAL PROCEEDINGS
   
ITEM 5.MARKET FOR REGISTRANT'SREGISTRANT’S COMMON EQUITY RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES
   
ITEM 7.MANAGEMENT'SMANAGEMENT’S DISCUSSION AND ANALYSIS OF RESULTS OF OPERATIONS
   
ITEM 8.FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
   
ITEM 9.CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE
   
ITEM 9A.CONTROLS AND PROCEDURES
   
ITEM 9B.OTHER INFORMATION
   
ITEM 14.PRINCIPAL ACCOUNTING FEES AND SERVICES
   
ITEM 15.EXHIBITS, FINANCIAL STATEMENT SCHEDULES
   
 SIGNATURES
   
 INDEX TO EXHIBITS


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GLOSSARY OF TERMS AND ABBREVIATIONS

The following terms and abbreviations appear in the text of this report and have the definitions described below:
AFUDCAllowance for Funds Used During Construction
AOCIAccumulated Other Comprehensive Income
ASCAccounting Standards Codification
ASC 220ASUASC 220, "Comprehensive Income"
ASC 310-10-50ASC 310-10-50, "Disclosure About the Credit Quality of Financing Receivables and the Allowance for Credit Losses"
ASC 820ASC 820 "Fair Value Measurements and Disclosures"
ASU 2011- 04ASU 2011-04 "Fair Value Measurements"
ASU 2011- 05ASU 2011-05 "Other Comprehensive Income"
ASU 2011- 12ASU 2011-12 "Other Comprehensive Income"Accounting Standards Update as issued by FASB
Basin ElectricBasin Electric Power Cooperative
BHCBlack Hills Corporation, the Parent of Black Hills Power, Inc.
Black Hills Non-regulated HoldingsBlack Hills Non-regulated Holdings, LLC, a direct, wholly-owned subsidiary of BHC
Black Hills Service CompanyBlack Hills Service Company LLC, a direct, wholly-owned subsidiary of Black Hills Corporation
Black Hills Utility HoldingsBlack Hills Utility Holdings, Inc. a direct, wholly-owned subsidiary of BHC
Black Hills WyomingBlack Hills Wyoming, LLC, an indirect, wholly-owned subsidiary of Black Hills Electric Generation, Inc., a subsidiary of Black Hills Non-regulated Holdings
Cheyenne LightCheyenne Light, Fuel and Power Company, a direct, wholly-owned subsidiary of BHC
Cheyenne PrairieCheyenne Prairie Generating Station currently being constructed in Cheyenne, Wyo. by Cheyenne Light and Black Hills Power. Construction is expected to be completed for this 132 MW facility in 2014.
City of GilletteThe City of Gillette, Wyoming, affiliate of the JPB.
Cooling degree dayA cooling degree day is equivalent to each degree that the average of the high and low temperature for a day is above 65 degrees. The warmer the climate, the greater the number of cooling degree days. Cooling degree days are used in the utility industry to measure the relative warmth of weather and to compare relative temperatures between one geographic area and another. Normal degree days are based on the National Weather Service data for selected locations over a 30 year average.
EnsercoCTEnserco Combustion turbine
CPCNCertificate of Public Convenience and Necessity
DSMDemand Side Management
ECAEnergy Inc., a wholly-owned subsidiaryCost Adjustment -- adjustments that allow us to pass the prudently-incurred cost of Black Hills Non-Regulated Holdings, LLC. Black Hills Non-regulated Holdings divested of Enserco Energy Inc. on February 29, 2012fuel and was presented in discontinued operations throughout the Parent Annual Report filed on Form 10-K.purchased power through to customers.
EPAUnited States Environmental Protection Agency
FASBFinancial Accounting Standards Board
FDICFederal Depository Insurance Corporation
FERCFederal Energy Regulatory Commission
FitchFitch Ratings
GAAPAccounting principles generally accepted in the United States of America
GHGGreenhouse gas
Happy JackHappy Jack Wind Farms, LLC, a subsidiary of Duke Energy Generation Services
Heating degree dayA heating degree day is equivalent to each degree that the average of the high and the low temperatures for a day is below 65 degrees. The colder the climate, the greater the number of heating degree days. Heating degree days are used in the utility industry to measure the relative coldness of weather and to compare relative temperatures between one geographic area and another. Normal degree days are based on the National Weather Service data for selected locations over a 30 year average.
IFRSInternational Financial Reporting Standards
IRSInternal Revenue Service
JPBConsolidated Wyoming Municipalities Electric Power System Joint Powers Board. The JPB exists for the purpose of, among other things, financing the electrical system of the City of Gillette. The JPB financed the purchase of 23% of the Wygen III power plant for the City of Gillette.
kVKilovolt
LIBORLondon Interbank Offered Rate

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MAPPMid-Continent Area Power Pool
MATSUtility Mercury and Air Toxics Rules under the United States EPA National Emissions Standards for Hazardous Air Pollutants from Coal and Oil Fired Electric Utility Steam Generating Units
MDUMontana Dakota Utilities Company
MEANMunicipal Energy Agency of Nebraska
Moody'sMoody’sMoody'sMoody’s Investor Services, Inc.
MTPSCMontana Public Service Commission
MWMegawatts
MWhMegawatt-hours
N/ANot Applicable
NOLNet operating loss
NQDC
NOx
Non-Qualified Deferred Compensation PlanNitrogen oxide
PacifiCorpPacifiCorp, a wholly owned subsidiary of MidAmerican Energy Holdings Company, itself an affiliate of Berkshire Hathaway
Peak System LoadPeak system load represents the highest point of customer usage for a single hour for the system in total. Our system peaks include demand loads for 100% of plants regardless of joint ownership.
PPAPower Purchase Agreement
RMSARetireeRetirement Medical Savings Account
SDPUCSouth Dakota Public Utilities Commission
SECUnited States Securities and Exchange Commission
Silver SageSilver Sage Windpower, LLC, a subsidiary of Duke Energy Generation Services
SO2
Sulfur dioxide
S&PStandard & Poor'sPoor’s Rating Services
TCATransmission Cost Adjustment - adjustments passed through to the customer based on transmission costs that are higher or lower than the costs approved in the rate case.
Thunder CreekThunder Creek Gas Services, LLC
WECCWestern Electricity Coordinating Council
WPSCWyoming Public Service Commission
WRDCWyodak Resources Development Corporation, a direct, wholly-owned subsidiary of Black Hills Non-regulated Holdings, LLC


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PART I


Forward-Looking Information

This Form 10-K contains forward-looking statements as defined by the SEC. Forward-looking statements are all statements other than statements of historical fact, including without limitation those statements that are identified by the words “anticipates,” “estimates,” “expects,” “intends,” “plans,” “predicts” and similar expressions, and include statements concerning plans, objectives, goals, strategies, future events or performance, and underlying assumptions and other statements that are other than statements of historical facts. From time to time, the Company may publish or otherwise make available forward-looking statements of this nature, including statements contained within Item 7 - Management’s Discussion & Analysis.

Forward-looking statements involve risks and uncertainties, which could cause actual results or outcomes to differ materially from those expressed. The Company’s expectations, beliefs and projections are expressed in good faith and are believed by the Company to have a reasonable basis, including without limitation, management’s examination of historical operating trends, data contained in the Company’s records and other data available from third parties. Nonetheless, the Company’s expectations, beliefs or projections may not be achieved or accomplished.

Any forward-looking statement contained in this document speaks only as of the date on which the statement is made, and the Company undertakes no obligation to update any forward-looking statement or statements to reflect events or circumstances that occur after the date on which the statement is made or to reflect the occurrence of unanticipated events. New factors emerge from time to time, and it is not possible for management to predict all of the factors, nor can it assess the effect of each factor on the Company’s business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statement. All forward-looking statements, whether written or oral and whether made by or on behalf of the Company, are expressly qualified by the risk factors and cautionary statements in this Form 10-K, including statements contained within Item 1A - Risk Factors.


ITEMS 1 and 2.    BUSINESS AND PROPERTIES

Safe Harbor for Forward Looking Information

This Annual Report on Form 10-K includes "forward-looking statements" as defined by the SEC. We make these forward-looking statements in reliance on the safe harbor protections provided under the Private Securities Litigation Reform Act of 1995. All statements, other than statements of historical facts, included in this Form 10-K that address activities, events or developments that we expect, believe or anticipate will or may occur in the future are forward-looking statements. In some cases, forward-looking statements can be identified by terminology such as "may," "will," "could," "should," "expects," "plans," "anticipates," "believes," "estimates," "projects," "predicts," "potential," or "continue" or the negative of these terms or other similar terminology. These forward-looking statements are based on assumptions that we believe are reasonable based on current expectations and projections about future events and industry conditions and trends affecting our business. Whether actual results and developments will conform to our expectations and predictions is subject to a number of risks and uncertainties that, among other things, could cause actual results to differ materially from those contained in the forward-looking statements, including without limitation, the Risk Factors set forth in Item 1A of this Form 10-K and the other reports we file with the SEC from time to time, and the following:

Our ability to obtain adequate cost recovery for our electric utility operations through regulatory proceedings and receive favorable rulings in periodic applications to recover costs for fuel and purchased power and our ability to add power generation assets into regulatory rate base;

Our ability to successfully maintain or improve our corporate credit rating;

Our ability to obtain from utility commissions any requisite determination of prudency to support resource planning and development programs we propose to implement;

The timing and extent of scheduled and unscheduled outages;

The possibility that we may be required to take impairment charges to reduce the carrying value of some of our long-lived assets when indicators of impairment emerge;

Changes in business and financial reporting practices arising from the enactment of the Energy Policy Act of 2005 and subsequent rules and regulations promulgated thereunder;

Our ability to complete the permitting, construction, start-up and operation of power generating facilities in a cost-effective and timely manner;

Our ability to remedy any deficiencies that may be identified in the review of our internal controls;

Our ability to successfully complete labor negotiations with our union;

The timing, volatility and extent of changes in energy-related and commodity prices, interest rates, energy and commodity supply or volume, the cost and availability of transportation of commodities, and demand for our services, all of which can affect our earnings, liquidity position and the underlying value of our assets;

Our ability to effectively use derivative financial instruments to hedge commodity risks;

Our ability to minimize defaults on amounts due from customers and counterparty transactions;

Our ability to comply, or to make expenditures required to comply with changes in laws and regulations, particularly those relating to taxation, safety and protection of the environment and to recover those expenditures in customer rates, where applicable;

Liabilities related to environmental conditions, including remediation and reclamation obligations under environmental laws;

Federal and state laws concerning climate changes and air emissions, including emission reduction mandates and

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renewable energy portfolio standards, which may materially increase our generation and production costs and could render some of our generating units uneconomical to operate and maintain;

Our ability to recover our borrowing costs, including debt service costs, in our customer rates;

Weather and other natural phenomena;

Macro- and micro-economic changes in the economy and energy industry, including the impact of (i) consolidations and changes in competition, (ii) changing conditions in the credit markets, and (iii) general economic and political conditions, including tax rates or policies and inflation rates;

Catastrophic events that could result from terrorism, cyber-attacks, or attempts to disrupt our business, or the business of third parties, that may impact operations in unpredictable ways and adversely affect financial results and liquidity;

The effect of accounting policies issued periodically by accounting standard-setting bodies;

The cost and effects on our business, including insurance, resulting from terrorist actions or responses to such actions or events;

The outcome of any ongoing or future litigation or similar disputes and the impact of any such outcome or related settlements on our financial condition or results of operations;

Capital market conditions, which may affect our ability to raise capital on favorable terms;

Price risk due to marketable securities held as investments in benefit plans; and

Other factors discussed from time to time in our other filings with the SEC.

New factors that could cause actual results to differ materially from those described in forward-looking statements emerge from time to time, and it is not possible for us to predict all such factors, or the extent to which any such factor or combination of factors may cause actual results to differ from those contained in any forward-looking statement. We assume no obligation to update publicly any such forward-looking statements, whether as a result of new information, future events, or otherwise.


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General

We areBlack Hills Power (“the Company,” “we,” “us” and “our”) is a regulated electric utility incorporated in South Dakota and serving customers in South Dakota, Wyoming and Montana. We are incorporated in South Dakota and began providing electric utility service in 1941. We are a wholly-owned subsidiary of the publicly traded Black Hills Corporation.

Unless the context otherwise requires, references in this Form 10-K to "the Company," "we," "us" and "our" refer to Black Hills Power, Inc.

We engage Engaging in the generation, transmission and distribution of electricity. We haveelectricity provides a solid foundation of revenues, earnings and cash flow that support our capital expenditures, dividends to our Parent, and our overall performance and growth.


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As of December 31, 20112013, our ownership interests in electric generation plants were as follows:

Unit(1)
Fuel
Type
Location
Ownership
Interest %
Owned Capacity (MW)
Year
Installed
Fuel
Type
Location
Ownership
Interest %
Owned Capacity (MW)
Year
Installed
Wygen III (1)(2)
CoalGillette, WY52%57.2
2010CoalGillette, WY52%57.22010
Neil Simpson IICoalGillette, WY100%90.0
1995CoalGillette, WY100%90.01995
Wyodak (2)(3)
CoalGillette, WY20%72.4
1978CoalGillette, WY20%72.41978
Osage (3)(4)
CoalOsage, WY100%34.5
1948-1952CoalOsage, WY100%34.51948-1952
Ben French(4)CoalRapid City, SD100%25.0
1960CoalRapid City, SD100%25.01960
Neil Simpson I(4)CoalGillette, WY100%21.8
1969CoalGillette, WY100%21.81969
Neil Simpson CTGasGillette, WY100%40.0
2000GasGillette, WY100%40.02000
Lange CTGasRapid City, SD100%40.0
2002GasRapid City, SD100%40.02002
Ben French Diesel #1-5OilRapid City, SD100%10.0
1965OilRapid City, SD100%10.01965
Ben French CTs #1-4 (4)
Gas/OilRapid City, SD100%100.0
1977-1979Gas/OilRapid City, SD100%80.01977-1979
  490.9
  470.9 
_______________________
(1) We operate Wygen III, a 110 MW mine-mouth coal-fired power plant and own a 52% interest in the facility. MDU owns a 25% interest and the City of Gillette owns the remaining 23% interest. The WRDC coal mine furnishes all of the coal fuel supply for the plant.
(2) Wyodak is a 362 MW mine-mouth coal-fired power plant owned 80% by PacifiCorp and 20% by us. This baseload plant is operated by PacifiCorp and the WRDC coal mine furnishes all of the coal fuel supply for the plant.
(3) Operations at the Osage plant were suspended October 1, 2010 due to the availability of more economical generation alternatives. The Osage plant will remain in our generation portfolio with all operating permits so it can resume full operations if needed.
(4) Upon expiration of the contract with PacifiCorp in June 2012, the capacity available under these units will be decreased to 80 MW.
(1)Construction of a gas-fired power generation facility is underway to support the customers of Black Hills Power. The facility will include one combined-cycle, 95 megawatt unit that will be jointly owned by Cheyenne Light (40 MW) and Black Hills Power (55 MW). This facility is expected to be completed in the fourth quarter of 2014.
(2)We operate Wygen III, a 110 MW mine-mouth coal-fired power plant and own a 52% interest in the facility. MDU owns a 25% interest and the City of Gillette owns the remaining 23% interest. WRDC furnishes all of the coal fuel supply for the plant.
(3)Wyodak is a 362 MW mine-mouth coal-fired power plant owned 80% by PacifiCorp and 20% by us. This baseload plant is operated by PacifiCorp and WRDC furnishes all of the coal fuel supply for 100% of the plant.
(4)Operations at Osage were suspended October 1, 2010 and Ben French were suspended on August 31, 2012 due to the availability of more economical generation alternatives when evaluating costs to retrofit these plants to comply with environmental standards, including EPA regulations. Osage, Ben French and Neil Simpson I will be retired on or before March 21, 2014, the effective compliance date of the EPA Industrial and Commercial Boiler Regulations for Area Sources of Hazardous Air Pollutants regulations. While the net book value of these plants is estimated to be insignificant at the time of retirement, we would reasonably expect any remaining value to be recovered through future rates and costs will be deferred as Regulatory assets on the accompanying Balance Sheets.

Distribution and Transmission. Our distribution and transmission system serves approximately 68,20069,000 electric customers, with an electric transmission system of 6181,179 miles of high voltage lines (greater than 69 KV)kV) and 2,9992,462 miles of lower voltage lines. In addition, we jointly own 4744 miles of high voltage lines with Basin Electric. Our service territory covers areas with a strong and stable economic base including western South Dakota, northeastern Wyoming and southeastern Montana. Approximately 90% of our retail electric revenues in 20112013 were generated in South Dakota. We are subject to state regulation by the SDPUC, the WPSC and the MTPSC.

The following are characteristics of our distribution and transmission businesses:business:

We have a diverse customer and revenue base. Our revenue mix for the year ended December 31, 20112013 was comprised of 30%32% commercial, 24%25% residential, 7%9% contract wholesale, 14%12% wholesale off-system, 11% industrial and 14%12% municipal sales and other revenue.

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We own 35% and Basin Electric owns 65% of a DC transmission tie that interconnects the Western and Eastern transmission grids, which are independently-operated transmission grids serving the westernWestern United States and the Eastern United States, respectively. This transmission tie provides transmission access to both the WECC region in the West and the MAPP region in the East. Our system is located in the WECC region. The total transfer capacity of the tie is 200 MW from West to East and 200 MW from East to West. This transmission tie allows us to buy and sell energy in the Eastern interconnection without having to isolate and physically reconnect load or generation between the two electrical transmission grids. The transmission tie accommodates scheduling transactions in both directions simultaneously. This transfer capability provides additional opportunity to sell our excess generation or to make economic purchases to serve our native load and our contract obligations, and to take advantage of the power price differentials between the two electric grids. Additionally, our system is capable of directly interconnecting up to 80 MW of generation or load to the Eastern transmission grid. Transmission constraints within the MAPP transmission system may limit the amount of capacity that may be directly interconnected to the Eastern system at any given time.


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We have firm point-to-point transmission access to deliver up to 50 MW of power on PacifiCorp'sPacifiCorp’s transmission system to wholesale customers in the Western region through 2023.

We have firm network transmission access to deliver power on PacifiCorp'sPacifiCorp’s system to Sheridan, Wyoming to serve our power sales contract with MDU through 2017, with the right to renew pursuant to the terms of PacifiCorp'sPacifiCorp’s transmission tariff.

Power Sales Agreements. We sell a portion of our current load under long-term contracts. Our key contracts include:

MDU owns a 25% ownership interest in Wygen III'sIII’s net generating capacity for the life of the plant. During periods of reduced production at Wygen III, or during periods when Wygen III is off-line, we will provide MDU with 25 MW from our other generation facilities or from system purchases with reimbursement of costs by MDU.

The City of Gillette owns a 23% ownership interest in Wygen III'sIII’s net generating capacity for the life of the plant. During periods of reduced production at Wygen III, or during periods when Wygen III is off-line, we will provide the City of Gillette with its first 23 MW from our other generation facilities or from system purchases with reimbursement of costs by the City of Gillette. Under this agreement we will also provide the City of Gillette their operating component of spinning reserves.

An agreement under which we supply 20 MW of energy and capacity to MEAN under a contract that expires in 2023. This contract is unit-contingent based on the availability of our Neil Simpson II and Wygen III plants. The unit-contingent capacity amounts from Wygen III and Neil Simpson II are as follows:

2010-20172014-201720 MW - 10 MW contingent on Wygen III and 10 MW contingent on Neil Simpson II
2018-201915 MW - 10 MW contingent on Wygen III and 5 MW contingent on Neil Simpson II
2020-202112 MW - 6 MW contingent on Wygen III and 6 MW contingent on Neil Simpson II
2022-202310 MW - 5 MW contingent on Wygen III and 5 MW contingent on Neil Simpson II; andII.

A five-year PPA with MEAN which commenced in May 2010 whereby MEAN will purchase 5 MW of unit-contingent capacity from Neil Simpson II and 5 MW of unit-contingent capacity from Wygen III.III through May 2015.

Regulated Power Plants and Purchased Power. Our electric load is primarily served by our generating facilities in South Dakota and Wyoming, which provide 491approximately 471 MW of generating capacity, with the balance supplied under purchased power and capacity contracts. We generated approximately 50%56% of our energy requirements in 20112013 and purchased approximately 50%44% which was supplied under the following purchased power contracts:

A PPA with PacifiCorp expiring in 2023, involving thewhereby we purchase by us of 50 MW of coal-fired baseload power;power.

A reserve capacity integration agreement with PacifiCorp expiring in June 2012, which makes available to us 100 MW of reserve capacity in connection with the utilization of the Ben French Combustion Turbine units;

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A 20-year PPA with Cheyenne Light expiring in 2028, under which we will purchase up to 14.7 MW of wind energy through Cheyenne Light'sLight’s agreement with Happy Jack;Jack.

A 20-year PPA with Cheyenne Light expiring in 2029, under which we will purchase up to 20 MW of wind energy through Cheyenne Light'sLight’s agreement with Silver Sage; andSage.

A Generation Dispatch Agreement with Cheyenne Light that requires us to purchase all of Cheyenne Light'sLight’s excess energy.

Since 1995, we have been a net producer of energy. Our 20112013 winter peak system load was 408403 MW and our 20112013 summer peak system load was 452422 MW. None of our generation is restricted by hours of operation, thereby providing us the ability to generate power to meet demand whenever necessary and economically feasible. We have historically optimized the utilization of our power supply resources by selling wholesale power to other utilities and to power marketers in the spot market, and through short-term sales contracts primarily in the WECC and MAPP regions. Our 301 MW of low-cost, coal-fired resources supports most of our native load requirements and positions us for wholesale off-system sales.


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Operating Agreements

Shared Services Agreement.Agreement- During 2010, we entered intoWe have a shared services agreement with Cheyenne Light and Black Hills Wyoming whereby each entity charges for the use of assets and the performance of services being used by, or performed for, an affiliate entity. The revenues and expenses associated with these assets are included in rate base.

Jointly Owned Facilities - Black Hills Power, the City of Gillette and MDU are parties to a joint ownership agreement, whereby Black Hills Power charges the City of Gillette and MDU for administrative services, plant operations and maintenance for their share of the Wygen III generating facility for the life of the plant.

Regulations

Rate Regulation

The following table illustrates certain enacted regulatory information with respect to the states in which we operate:

StateAuthorized Rate of Return on EquityAuthorized Return on Rate BaseCapital Structure Debt/EquityEffective DateOther Tariffs, Riders and Rate MattersPercentage of Off-System Sale Profits Shared with Customers
SDGlobal Settlement7.93%Global Settlement6/2013ECA,TCA, Energy Efficiency Cost Recovery/ DSM65%
SD 8.16% 6/2011Environmental Improvement Cost Recovery Adjustment TariffNA
WY10.5%8.60%48%/52%6/2010TCA, ECA50% subject to symmetrical deadband
MT15.0%11.73%47%/53%1983ECANA
FERC10.8%­9.12%43%/57%2/2009FERC Transmission TariffNA

Rates for our retail electric service are subject to regulation by the SDPUC for customers in South Dakota, the WPSC for customers in Wyoming and the MTPSC for customers in Montana. Any changes in retail rates are subject to approval by the respective regulatory body. We have rate adjustment mechanisms in Montana and South Dakota which provide for pass-through of certain costs related to the purchase, production and/or transmission of electricity. We are also subject to the jurisdiction of FERC with respect to accounting practices and wholesale electricity sales. We have been granted market-based rate authority by FERC and are not required to file cost-based tariffs for wholesale electric rates. Rates charged by us for use of our transmission system are subject to regulation by FERC.

In September 2013, the SDPUC approved Cheyenne Prairie’s construction financing rider effective April 1, 2013 which allows for recovery of construction financing costs from customers during the construction period in lieu of traditional AFUDC. The rider allows Black Hills Power to earn and collect a rate of return during the construction period on the total project cost that relates to South Dakota customers. This rider is similar to the rider approved by WPSC effective November 1, 2012 which allows Black Hills Power to earn and collect a rate of return during the construction period on approximately 60 percent of the total project cost that relates to Wyoming customers. These riders increased gross margin by approximately $2.7 million in 2013.

In South Dakota, Wyoming and Montana, we have cost adjustment mechanisms that allow us to pass to our customers the prudently-incurred cost of fuel and purchased power.

Until April 1, 2010In South Dakota had three adjustment mechanisms: transmission, steam plant fuel (coal) and conditional energy cost adjustment. The transmission and steam plant fuel adjustment clauses requiredwe have an annual adjustment to rates for actual costs, therefore any savings or increased costs were passed on to the South Dakota customers. The conditional energy cost adjustment related to purchased power and natural gas used to generate electricity. These costs were subject to calendar year $2.0 million and $1.0 million thresholds where Black Hills Power absorbed the first $2.0 million of increased costs or retained the first $1.0 million in savings. Beyond these thresholds, costs or savings were passed on to South Dakota customers through annual calendar-year filings.

In South Dakota beginning April 1, 2010, the steam plant fuel and conditional energy cost adjustments were combined into a single cost adjustment called the Fuel and Purchased Power Adjustment clause. The Fuel and Purchased Power Adjustment Clauseclause which provides for the direct recovery of increased fuel and purchased power costs incurred to serve South Dakota customers. As of April 1, 2010,Additionally, the Fuel and Purchased Power Adjustment clause was modified in the rate case settlement to contain a power marketing operating incomeECA contains an off-system sales sharing mechanism in which South Dakota customers will receive a credit equal to 65%65 percent of off-system power marketing operating income. The modification also adjusts the methodology to directly assign renewable resources and firm purchases to the customer load. In Wyoming beginning June 1, 2010,has a similar Fuel and PurchasePurchased Power Cost Adjustment was instituted.Adjustment.

Additionally, in May 2011, the SDPUCIn South Dakota we have an approved anannual Environmental Improvement Cost Recovery Adjustment tariff. This tariff which was implemented to recover Black Hills Power's investment of $25 million for pollution control equipment at the PacifiCorp operated Wyodak plant,that went into effect June 1, 2011 and allows for recovery of all therecovers costs associated with generation plant additions.environmental improvements.


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We have an approved FERC Transmission Tariff based on a formulaic approach that determines the revenue component of Black Hills Power’s open access transmission tariff. The revenue requirement is based on an equity return of 10.8%, a capital structure of 57% equity and 43% debt and a return on rate base which is adjusted annually.

Rate Increase SettlementMatters

South Dakota

On September 30, 2009,In January 2014, Black Hills Power filed a rate case with the WPSC requesting an electric revenue increase of $2.8 million to recover investment in Cheyenne Prairie, existing infrastructure and increasing operating costs. The filing seeks a return on equity of 10.25% and a capital structure of 53% equity and 47% debt.

In December 2012, we filed a rate case with the SDPUC requesting an electric revenue increase of $13.7 million, or 9.94%, to recover costs associated with Wygen IIIinvestment in distribution and othertransmission lines, generation transmission and distribution assetsplant upgrades, environmental compliance and increased operating expenses incurred during the past four years. In March 2010,costs. On September 17, 2013, the SDPUC approved a 20%rate increase of $8.8 million, or 6.4%, effective June 16, 2013.

Power Plant Suspension/Retirements

In order to comply with environmental regulations, including the new EPA Industrial and Commercial Boiler Regulations for Area Sources of Hazardous Air Pollutants regulations, operations at our 25 MW coal-fired Ben French power plant were suspended as of August 31, 2012. Operations at our 35 MW coal-fired Osage power plant were suspended as of October 1, 2010. These plants as well as our 22 MW coal-fired plant Neil Simpson I will be retired on or before March 21, 2014. We intend to operate Neil Simpson I until the planned retirement date.

Cheyenne Prairie

As a result of the planned plant retirements for some of our older coal-fired power plants discussed above, Cheyenne Light and Black Hills Power filed a joint CPCN to construct a new $222 million, 132 MW natural gas-fired electric generation facility in interim revenues, subjectCheyenne, Wyoming. The facility will include construction of one simple-cycle, 37 MW combustion turbine that will be wholly owned by Cheyenne Light and one combined cycle 95 MW unit that will be jointly owned by Cheyenne Light (40 MW) and Black Hills Power (55 MW). The project is expected to refund, effective April 1, 2010be placed into service in the fourth quarter of 2014.

In December 2012, we filed a request with the SDPUC to use a construction financing rider during the construction of Cheyenne Prairie in lieu of traditional AFUDC. This rider is similar to the one approved by the WPSC for South Dakota customers.Cheyenne Light and Black Hills Power for Wyoming customers in 2012. On July 7, 2010,January 17, 2013, the SDPUC approved a final revenue increase of $15.2 million, or 12.7%, and a base rate increase of $22 million, or 19.4%stipulation with aninterim rates effective date of April 1, 2010. The approved capital structure2013 and return on equity are confidential. A refund was provided to customers in the third quarter of 2010.

As part of the settlement stipulation, we agreed (1) to credit customers 65% of power marketing operating income with a minimum of $2.0 million per year; (2) that rates will include a South Dakota Surplus Energy Credit of $2.5 million in year one (fiscal year ending March 2011), $2.25 million in year two, $2.0 million in year three and zero thereafter; and (3) a moratorium until AprilSept. 17, 2013, for any base rate increases excluding any extraordinary events as defined in the stipulation agreement; while (4) the SDPUC agreed to adjust the power marketing sales portion of the Fuel and Purchased Power Adjustment clause to directly assign renewable resources and firm purchases to the customer load.

In May 2011, the SDPUC approved an Environmental Improvement Cost Recovery Adjustment tariff forthe construction financing rider. The rider allows Black Hills Power. This tariff, which was implementedPower to recover Black Hills Power's investment of $25 million for pollution control equipment at the PacifiCorp operated Wyodak plant, went into effect June 1, 2011 with an annual revenue increase of $3.1 million.

Wyoming

On October 19, 2009, we filedearn and collect a rate case withof return during the WPSC requesting an electric revenue increaseconstruction period on its approximately 40% share of the total project cost that relates to recover costs associated with Wygen III and other generation, transmission and distribution assets and increased operating expenses incurred since 1995. On May 4, 2010, we filed a settlement stipulation agreement with the WPSC for a $3.1 million increase in annual revenues. On May 13, 2010, WPSC approved these new rates based on a return on equity of 10.5% with a capital structure of 52% equity and 48% debt. Rates went into effect on June 1, 2010.South Dakota customers.

State Regulation

Certain states where we conduct electric utility operations have adopted renewable energy portfolio standards that require or encourage us to source, by a certain future date, a minimum percentage of the electricity delivered to customers from renewable energy generation facilities. At December 31, 20112013, we were subject to the following renewable energy portfolio standards or objectives:

South Dakota. South Dakota has adopted a renewable portfolio objective that encourages, but does not mandate utilities to generate, or cause to be generated, at least 10% of their retail electricity supply from renewable energy sources by 2015.

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Montana. In 2005 Montana established a renewable portfolio standard that requires public utilities to obtain a percentage of their retail electricity sales from eligible renewable resources. In March 2013, we filed a petition with the MPSC requesting a waiver of the renewable portfolio standards primarily due to exceeding the applicable “cost cap” included in the standards. However, in March 2013, the Montana Legislature adopted legislation that excluded Black Hills Power from all renewable portfolio standard requirements under Senate Bill 164, primarily due to the very low number of customers we have in Montana and the relatively high cost of meeting the renewable requirements.

Wyoming. Wyoming currently has no renewable energy portfolio standard.

Absent a specific renewable energy mandate in South Dakota, our current strategy is to prudently incorporate renewable energy into our resource supply, seeking to minimize associated rate increases for our utility customers.

Montana. Montana established a renewable portfolio standard that requires us to obtain a percentage of our retail electric sales in Montana from eligible renewable resources according to the following schedule: (i) 10% for compliance years 2010-2014 and (ii) 15% for compliance year 2015 and thereafter. Utilities can meet this standard by entering into long-term purchase contracts for electricity bundled with renewable-energy credits, by purchasing the renewable-energy credits separately, or by a combination of both. The law includes cost caps that limit the additional cost utilities must pay for renewable energy and allows cost recovery from ratepayers for contracts pre-approved by the MTPSC. We are currently in compliance with applicable standards.

Wyoming. Wyoming is also exploring the implementation of renewable energy portfolio standards but has not currently adopted standards.

Mandatory portfolio standards have increased, and may continue to increase the power supply costs of our electric utility operations. Although we will seek to recover these higher costs in rates, we can provide no assurance that we will be able to secure full recovery of the costs we pay to be in compliance with standards or objectives. We cannot at this time reasonably forecast the potential costs associated with any new renewable energy standards that have been or may be proposed at the federal or state level.


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Environmental Regulations

We are subject to numerous federal, state and local laws and regulations relating to the protection of the environment and the safety and health of personnel and the public. These laws and regulations affect a broad range of our utility activities, and generally regulate: (i) the protection of air and water quality; (ii) the identification, generation, storage, handling, transportation, disposal, record-keeping, labeling, reporting of, and emergency response in connection with hazardous and toxic materials and wastes, including asbestos; and (iii) the protection of plant and animal species and minimization of noise emissions. We have incurred, and expect to incur, capital, operating and maintenance costs for the operations of our plants to comply with these laws and regulations. While the requirements are evolving, it is virtually certain that environmental requirements placed on the operations will continue to be more restrictive.

In 2011, the EPA issued the Industrial and Commercial Boiler Regulations for Area Sources of Hazardous Air Pollutants, with updates on December 21, 2012, which impose emission limits, fuel requirements and monitoring requirements. The rule has an effective date of May 20, 2011 and a compliance deadline of March 21, 2014. ThisIn anticipation of this rule hasand our evaluation of costs to retrofit these plants, we suspended operations at the Osage plant on October 1, 2010 and as a significant impactresult of this rule, we suspended operations at the Ben French facility on ourAugust 31, 2012 with plans to retire Ben French, Osage and Neil Simpson I Osage and Ben French facilities. Engineering evaluations have been completed as to the economic viability of continued operations of these units. It is our expectation that the Neil Simpson I, Osage and Ben French units will be closed prior to theon or before March 21, 2014 compliance deadline.2014.

On DecemberFebruary 16, 2011,2012, the EPA signed the National Emission Standards for Hazardous Air Pollutants from Coal and Oil Fired Electric Utility Steam Generating Units (Utility Maximum Achievable Control Technology Rule)(MATS), which became effective on FebruaryApril 16, 2012. This rule imposes requirements for mercury, acid gases, metals and other pollutants. Affected units will have three years from the rule effective date to be ina compliance deadline of April 16, 2015, with a pathway defined to apply for a one year extension due to certain very limited circumstances. CertainThe current state air permit for Wygen III provides mercury emission limits and monitoring requirements of that regulation could have significant impacts on thewith which we are in compliance. Neil Simpson II and Wygen III have been utilized for internal study and Wyodak plants.review of mercury emission control technology and have mercury monitors in place. Neil Simpson II, Wygen III and the Wyodak plant are expected to be in compliance withinby the compliance time frame. Significant modifications may be required to ensure compliance at Neil Simpson II and we are working toward that goal. Preliminary estimates of capital requirements to comply with this rule are $30 million to $50 million.deadline, without incurring significant costs.

InOn June 2011,3, 2010, the EPA was scheduledpromulgated the GHG Tailoring Rule, implementing regulations of GHG for permitting purposes. This rule will impact us in the event of a major modification at an existing facility or in the event we establish a new major source of GHG emissions, as defined by EPA regulations. Upon renewal of operating permits for existing permitted facilities monitoring and reporting requirements will be implemented. New projects or major modifications to issueexisting projects will result in a Best Available Control Technology review that could result in more stringent emission control practices and technologies. Wyoming passed GHG legislation in 2012 and 2013, enabling the state to implement EPA’s GHG program. Rules were adopted and submitted to EPA, with approval granted in the November 22, 2013 Federal Register. As of December 23, 2013, Wyoming has full jurisdiction over the GHG permitting program which includes the transfer of the Cheyenne Prairie EPA GHG air permit, to the state of Wyoming. This eliminates the increased time, expense and considerable risk of obtaining a permit from EPA.

On January 8, 2014, the EPA re-proposed Standards of Performance for Greenhouse Gas Emissions from New Stationary Sources: Electric Utility Generating Units. We expect multiple revisions and legal actions before the final rule is issued, so we cannot be certain of impacts from this rule.


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In August 2012, the EPA proposed revisions to the Electric Utility New Source Performance Standards for GHG. That publication date has been extendedstationary combustion turbines. This rule is expected to mid-2012. As the regulations are not yetbe finalized in 2014 and, as proposed, we cannot ascertain their impacts but we anticipate they maywill be applicable to Wygen III. In 2011, it was anticipatedCheyenne Prairie and eventually all the EPA would expeditecombustion turbines in our fleet. Among other things, the issuancerule seeks to eliminate startup exemptions and clearly define overhauls for impact on the EPA’s New Source Review regulations, with the intention of a more stringent ozone ambient air standard. However,eventually bringing all units under the Presidentapplicability of the United States postponed this revision and placed it backrule. The primary impact is expected to be on its normal review cycle,our older existing units, which is scheduledwill eventually be required to occur in 2013. If the lower range of the proposed standard is selected, it is anticipated that Campbell County, Wyoming would be a non-attainment area. Under those conditions, the State of Wyoming may evaluate Neil Simpson II and Wygen III for further reductions inmeet tighter NOx emissions.emission limitations.

By May 3, 2013, all of our diesel generator engines were required to comply with EPA’s Stationary Reciprocating Internal Combustion Engine Hazardous Air Pollutant regulations. Evaluations were completed, emission control equipment was installed and emission testing confirmed compliance with those requirements.

In 2011, the State of Wyoming issued a letter addressingrequiring Neil Simpson II to include startup and shutdown SO2 and NOxemissions at Neil Simpson II, requiring the facility to include those emissions in consideration ofwhen evaluating compliance with the permitted emission limits. This representsrepresented a significant change infrom requirements fromin the original 1993 air permit issuedpermit. Minor engineered design changes were made to improve scrubber performance during startup. Those changes enabled the unit to meet the new requirements. The unit was previously fitted with state of the art low NOx burners that support compliance with this new requirement. Also in 1993. As this facility was not designed and built according2014, Neil Simpson II will be converting startup fuel from diesel to those requirements, we are currently undergoing engineering evaluations to determine methods and costs of compliance.natural gas.

Regulatory Accounting

We follow accounting for regulated utility operations and our financial statements reflect the effects of the different rate making principles followed by the various jurisdictions in which we operate. If rate recovery becomes unlikely or uncertain, due to competition or regulatory action, these accounting standards may no longer apply to our regulated operations. In the event we determine that we no longer meet the accounting criteria for regulated operations, the accounting impact to us could be an extraordinary non-cash charge to operations of an amount that could be material.

New Accounting Pronouncements

See Note 21 of our Notes to Financial Statements in this Annual Report on Form 10-K for information on new accounting standards adopted in 20112013 or pending adoption.


ITEM 1A.    RISK FACTORS

The nature of our business subjects us to a number of uncertainties and risks. The following risk factors and other risk factors that we discuss in our periodic reports filed with the SEC should be considered for a better understanding of our Company. These important factors and other matters discussed herein could cause our actual results or outcomes to differ materially from

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those discussed in our forward-looking statements, or otherwise.

We may not raise our retail rates without prior approval of the SDPUC, WPSC or the MTPSC. If we seek rate relief, we could experience delays, reduced or partial rate recovery, or disallowances in rate proceedings. Regulatory commissions may refuse to approve some or all of the utility rate increases we have requested or may request in the future, or may determine that amounts passed through to customers were not prudently incurred and therefore, are therefore, not recoverable which could adversely affect our results of operations, financial position or liquidity.

Our electricity operations are subject to cost-of-service regulation and earnings oversight. This regulatory treatment does not provide any assurance as to achievement of desired earnings levels. Our rates are regulated on a state-by-state basis by the relevant state regulatory authorities based on an analysis of our costs, as reviewed and approved in a regulatory proceeding. The rates that we are allowed to charge may or may not match our related costs and allowed return on invested capital at any given time. Our returns could be threatened by plant outages, machinery failures, increased purchased power costs, acts of nature, acts of terrorism or other unexpected events over which we have no control that could cause our costs to increase and operating margins to decline. While rate regulation is premised on the full recovery of prudently incurred costs and a reasonable rate of return on invested capital, there can be no assurance that the state public utility commissions will judge all of our costs, including our borrowing and debt service costs, to have been prudently incurred or that the regulatory process in which rates are determined will always result in rates that will produce a full recovery of our costs and the return on invested capital allowed by the applicable state public utility commission.


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To some degree, we are permitted to recover certain costs (such as increased fuel, purchased power costs and transmission costs, as applicable) without having to file a rate case. To the extent we pass through such costs to customers and a state public utility commission subsequently determines that such costs should not have been paid by customers, we may be required to refund such costs to customers. Any such costs not recovered through rates, or any such refund, could negatively affect our results of operations, financial position or liquidity.cash flows.

Our financial performance depends on the successful operations of our facilities. If the risks involved in our operations are not appropriately managed or mitigated, our operations may not be successful and this could adversely affect our results of operations.

Operating electric generating facilities involves risks, including:

Operational limitations imposed by environmental and other regulatory requirements.requirements;

Interruptions to supply of fuel and other commodities used in generation.generation and distribution. We purchase fuel from a number of suppliers. Our results of operations could be negatively impacted by disruptions in the delivery of fuel due to various factors, including but not limited to, transportation delays, labor relations, weather, and environmental regulations, which could limit the ability to operate our facilities;

Breakdown or failure of equipment or processes, including those operated by PacifiCorp at the Wyodak plant.plant;

Inability to recruit and retain skilled technical labor.

Labor relations.labor;

Disrupted transmission and distribution. We depend on transmission and distribution facilities, including those operated by unaffiliated parties, to deliver the electricity that we sell to our retail and wholesale customers. If transmission is interrupted, our ability to sell or deliver product and satisfy our contractual obligations may be hindered.hindered;

The global financial situation has affected our counterparty credit risk which couldElectricity is dangerous for employees and the general public should they come in contact with power lines or electrical equipment. Natural conditions and other disasters such as wind, lightning and winter storms can cause wildfires, pole failures and associated property damage and outages. For example, as described in more detail under “Legal Proceedings,” a fire investigator concluded that a forest and grassland fire in the western Black Hills of Wyoming and South Dakota in 2012 was caused by the failure of a transmission structure owned, operated and maintained by us, and claims have an adverse effect on our results of operations, financial position or liquidity.been made against us related to the fire;

As a consequence ofDisruption in the global financial crisis in recent years, the creditworthiness of manyfunctioning of our contractual counterparties (particularly financial institutions) has deteriorated. Althoughinformation technology and network infrastructure which are vulnerable to disability, failures and unauthorized access. If our information technology systems were to fail and we aggressively monitorwere unable to recover in a timely manner, we would be unable to fulfill critical business functions; and evaluate changes in our counterparties' credit quality and adjust the credit limits based upon such changes, our credit guidelines, controls and limits may not protect us from increasing counterparty credit risk. To the extent the financial crisis causes our credit exposure to contractual counterparties to increase materially, such increased exposure could have an adverse effect on our results of operations, financial position or liquidity.

Labor relations.

National and regional economic conditions may cause increased late payments and uncollectible accounts, which could adversely affect our results of operations, financial position or liquidity.

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The continued recessionary environment and anyA future recession may lead to an increase in late payments from retail, commercial and industrial utility customers, as well as from our non-utilitynon-regulated customers. If late payments and uncollectible accounts increase, our results of operations, financial position and liquidity could be adversely impacted.

Our credit ratings could be lowered below investment grade in the future. If this were to occur, it could impact our access to capital, our cost of capital and our other operating costs.

Our credit rating on our First Mortgage Bonds is "A3"A1 by Moody's, "BBB+"Moody’s, A- by S&P and A- by Fitch. Any reduction in our ratings by the rating agencies could adversely affect our ability to refinance or repay our existing debt and to complete new financings. In addition, a downgrade in our credit rating would increase our costs of borrowing under some of our existing debt obligations. A downgrade could also result in our business counterparties requiring us to provide additional amounts of collateral under new transactions.


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Construction, expansion, refurbishment and operation of power generating and transmission facilities involve significant risks which could lead to lost revenues or increased expenses.reduce profitability.

The construction, expansion, refurbishment and operation of power generating and transmission facilities involve many risks, including:

The inability to obtain required governmental permits and approvals along with the cost of complying with or satisfying conditions imposed upon such approvals;

Contract restrictions upon the timing of scheduled outages;

Cost of supplying or securing replacement power during scheduled and unscheduled outages;

The unavailability or increased cost of equipment;

The cost of recruiting and retaining or the unavailability of skilled labor;

Supply interruptions, work stoppages and labor disputes;

CapitalIncreased capital and operating costs to comply with increasingly stringent environmental laws and regulations;

Opposition by members of the public or special-interest groups;

Weather interferences;

Unexpected engineering, environmental or geological problems; and

Unanticipated cost overruns.

The ongoing operation of our facilities involves allmany of the risks described above, in addition to risks relating to the breakdown or failure of equipment or processes and performance below expected levels of output or efficiency. New plants may employ recently developed and technologically complex equipment, especially in the case of newer environmental emission control technology. Any of these risks could cause us to operate below expected capacity levels, which in turn could reduce revenues, increase expenses, or cause us to incur higher maintenance costs and penalties. While we maintain insurance, obtain warranties from vendors and obligate contractors to meet certain performance levels, the proceeds of such insurance and our rights under warranties or performance guarantees may not be timely or adequate to cover lost revenues, increased expenses or liquidated damage payments.


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Prices for some of our products and services as well as a portion of our operating costs are volatile and may cause our revenues and expenses to fluctuate significantly.

A portion of the variability of our net income in recent years has been attributable to off-system wholesale electricity sales. The related power prices are influenced by many factors outside our control, including among other things, fuel prices, transmission constraints, supply and demand, weather, general economic conditions and the rules, regulations and actions of the system operators in those markets. Moreover, unlike most other commodities, electricity cannot be stored and therefore must be produced concurrently with its use. As a result, wholesale power markets are subject to significant, unpredictable price fluctuations over relatively short periods of time.


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Our energy production, transmission and distribution activities involve numerous risks that may result in accidents and other catastrophic events. These events could disrupt or impair our operations, create additional costs and cause substantial loss to us.

Inherent in our electricity distribution activities are a variety of hazards and operating risks, such as fires, releases of hazardous materials, explosions and mechanical problems that could cause substantial adverse financial impacts. These events could result in injury or loss of human life, significant damage to property or natural resources (including public parks), environmental pollution, impairment of our operations, and substantial losses to us. In accordance with customary industry practice, we maintain insurance against some, but not all, of these risks and losses. The occurrence of any of these events not fully covered by insurance could have a material adverse effect on our financial position and results of operations. Particularly for our distribution lines located near populated areas, including residential areas, commercial business centers, industrial sites and other public gathering areas, the damages resulting from any such events could be significant.

Our operating results can be adversely affected by milder weather.variations from normal weather patterns.

Our utility business is a seasonal business and weather patterns can have a material impact on our operating performance. Demand for electricity is typically greater in the summer and winter months associated with cooling and heating. Accordingly, our utility operations have historically generated less revenues and income when weather conditions are cooler in the summer and warmer in the winter. Unusually mild summers and winters therefore could have an adverse effect on our results of operations, financial position and liquidity.

Our businesses are located in areas that could be subject to seasonal natural disasters such as severe snow and ice storms, flooding and wildfires. These factors could result in interruption of our business, damage to our property such as power lines and substations, and repair and clean-up costs associated with these storms. We may not be able to recover the costs incurred in restoring transmission and distribution property following these natural disasters through a change in our regulated rates thereby resulting in a negative impact on our results of operations, financial condition and cash flows.

The failure to achieve or maintain compliance with existing or future governmental regulations or requirements could adversely affect our results of operations, financial position or liquidity. Additionally, the potentially high cost of complying with such requirements or addressing environmental liabilities could also adversely affect our results of operations, financial position or liquidity.

Our business is subject to extensive energy, environmental and other laws and regulations of federal, state and local authorities. We generally must obtain and comply with a variety of regulations, licenses, permits and other approvals in order to operate, which could require significant capital expenditures and operating costs. If we fail to comply with these requirements, we could be subject to civil or criminal liability and the imposition of liens or fines; claims for property damage or personal injury; and/ or environmental clean-up costs. In addition, existing regulations may be revised or reinterpreted, new laws and regulations may be adopted or become applicable to us or our facilities, which could require additional unexpected expenditures and have a detrimental effect on our business.

We strive to comply with all applicable environmental laws and regulations. Future steps to bring our facilities into compliance, if necessary, could be expensive, and could adversely affect our results of operation and financial condition. We expect our environmental compliance expenditures to be substantial in the future due to the continuing trends toward stricter standards, greater regulation, more extensive permitting requirements and an increase in the number of assets we operate.

Our ability to obtain insurance and the terms of any available insurance coverage could be adversely affected by international, national, state or local events and company-specific events, as well as the financial condition of insurers. Our insurance coverage may not provide protection against all significant losses.

Our ability to obtain insurance, as well as the cost of coverage of such insurance, could be affected by developments affecting company-specific events, international, national, state or local events, as well as the financial condition of insurers. Insurance coverage may not continue to be available at all, or at rates or on terms similar to those presently available to us. A loss for which we are not fully insured could materially and adversely affect our financial results. Our insurance may not be sufficient or effective under all circumstances and against all hazards or liabilities to which the company may be subject, including but not limited to environmental hazards, wildfire-related liability, distribution property losses and cyber risks.


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Municipal governments may seek to limit or deny franchise privileges which could inhibit our ability to secure adequate recovery of our investment in assets subject to condemnation.

Municipal governments within our utility service territories possess the power of condemnation, and could seek a municipal utility within a portion of our current service territories by limiting or denying franchise privileges for our operations, and exercising powers of condemnation over all or part of our utility assets within municipal boundaries. Although condemnation is a process that is subject to constitutional protections requiring just compensation, as with any judicial procedure, the outcome is uncertain. If a municipality sought to pursue this course of action, we cannot assure that we would secure adequate recovery of our investment in assets subject to condemnation.

Federal and state laws concerning climate changegreenhouse gas regulations and air emissions may materially increase our generation and production costs and could render some of our generating units uneconomical to operate and maintain.

maintain
.
We own and operate regulated fossil-fuel generating plants in South Dakota and Wyoming. Recent developments under federal and state laws and regulations governing air emissions from fossil-fuel generating plants will likely result in more stringent emission limitations, which could have a material impact on our costs of operations. Various pending or operations.

final state and EPA regulations that will impact our facilities are also discussed in Item 1 of this Annual Report on Form 10-K under the caption “Environmental Regulations.”
On May 20, 2011, with amendments on December 21, 2012, the EPA'sEPA’s Industrial and Commercial Boiler regulations became effective, which provide for hazardous air pollutant-related emission limits and monitoring requirements. The compliance deadline for this rule is March 21, 2014. Engineering evaluations have been completed and confirm the significant impact on our Neil Simpson I, Osage and Ben French facilities. We anticipate theseThese units will be closed prior toretired on or before the March 21, 2014 compliance deadline. Although we will seek recovery for the remaining net book values of these plants and prudent decommissioning costs of these units, we cannot be assured of this recovery.

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On DecemberFebruary 16, 20112012, the EPA signedpublished in the Federal Register the National Emission Standards for Hazardous Air Pollutants from Coal and Oil Fired Electric Utility Steam Generating Units which became(MATS), with an effective on Februarydate of April 16, 2012. Affected units will have three years from the rule effective date to be ina compliance deadline of April 16, 2015, with a pathway defined to apply for a one year extension due to certain circumstances. Certain requirementsIt is expected that all of that regulation could have significantour plants will be in compliance by the initial 2015 deadline, with the primary impacts on theto Neil Simpson II, Wygen III and the Wyodak plants.Plant including installation of mercury sorbent injection systems, along with additional monitoring and testing requirements.
The GHG Tailoring Rule, implementing regulations of GHG for permitting purposes, became effective in June 2010. This rule will impact us in the event of a major modification at an existing facility or in the event of a new major source. Existing permittedsource as defined by EPA regulations. Upon renewal of operating permits for existing facilities will see monitoring and reporting requirements incorporated into their operating permits upon renewal.will be implemented. New projects or major modifications to existing projects will result in a Best Available Control Technology review that could result inimpose more stringent emissions control practices and technologies. The EPA’s GHG New Source Performance Standard for new steam electric generating units was re-proposed in September 2013 and is expected to be final in the spring of 2014. As proposed, it effectively prohibits new coal fired units until carbon capture and sequestration becomes technically and economically feasible. It also effectively prohibits simple cycle natural gas combustion turbines from generating more than one-third of their capacity, averaged over a three year period. In 2014, we expect the EPA, to propose regulations for GHG emissions from existing steam electric generating units. This rule could have a significant impact on our coal and natural gas generating fleet.
Due to uncertainty as to the final outcome of federal climate change legislation, or regulatory changes under the Clean Air Act, we cannot definitively estimate the effect of GHG legislation or regulation on our results of operations, cash flows or financial position. The impact of GHG legislation or regulation on our company will depend upon many factors, including but not limited to the timing of implementation, the GHG sources that are regulated, the overall GHG emissions cap level, and the availability of technologies to control or reduce GHG emissions. If a "cap“cap and trade"trade” structure is implemented, the impact will depend on the degree to which offsets are allowed, the allocation of emission allowances to specific sources, and the effect of carbon regulation on natural gas and coal prices.

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New or more stringent regulations or other energy efficiency requirements could require us to incur significant additional costs relating to, among other things, the installation of additional emission control equipment, the acceleration of capital expenditures, the purchase of additional emissions allowances or offsets, the acquisition or development of additional energy supply from renewable resources, and the closure of certain generating facilities. To the extent our regulated fossil-fuel generating plants are included in rate base;base we will attempt to recover costs associated with complying with emission standards or other requirements. We will also attempt to recover the emission compliance costs of our non-regulated fossil-fuel generating plants from utility and other purchasers of the power generated by those non-regulated power plants. Any unrecovered costs could have a material impact on our results of operations and financial condition. In addition, future changes in environmental regulations governing air emissions could render some of our power generating units more expensive or uneconomical to operate and maintain.
Increased risks of regulatory penalties could negatively impact our business.results of operations, financial position or liquidity.

The Energy Policy ActBusiness activities in the energy sector are heavily regulated, primarily by agencies of 2005 increased the FERCfederal government. Agencies that historically sought voluntary compliance, or issued non-monetary sanctions, now employ mandatory civil penalty authoritystructures for violation ofregulatory violations. The FERC, statutes, rulesEPA, OSHA and orders.  FERCSEC can nowincreasingly impose significant civil penalties of $1.0 million per violation, per day, and other regulatory agencies that imposeto enforce compliance requirements relative to our business also have civil penalty authority.business. In addition, FERC has delegated certain aspects of authority for enforcement of electric system reliability standards to the North American ElectricEnergy Reliability Corporation, with similar penalty authority for violations. Many rules that were historically subject to voluntary compliance are now mandatory and subject to potential civil penalties for violations.  If a serious regulatory violation did occur, and penalties were imposed by FERC or another federal agency, this action could have a material adverse effect on our operations and/or our financial results.

Certain Federal laws, including the Migratory Bird Act and the Endangered Species Act, provide special protection to certain designated species. These laws and any state equivalents provide for significant civil and criminal penalties for non-permitted activities that result in harm to or harassment of certain protected animals, including damage to their habitats. If such species are located in an area in which we conduct operations, or if additional species in those areas become subject to protection, our operations and development projects, particularly transmission, generation and wind, could be restricted or delayed, or we could be required to implement expensive mitigation measures.

An effective system of internal control may not be maintained, leading to material weaknesses in internal control over financial reporting.

Section 404 of the Sarbanes-Oxley Act of 2002 requires management to make an assessment of the design and effectiveness of internal controls. During their assessment of these controls, management or our independent registered public accounting firm may identify areas of weakness in control design or effectiveness, which may lead to the conclusion that a material weakness in internal control exists. Any control deficiencies we identify in the future could adversely affect our ability to report our financial results on a timely and accurate basis, which could result in a loss of investor confidence in our financial reports or have a material adverse effect on our ability to operate our business or access sources of liquidity.

Threats of terrorism and catastrophic events that could result from terrorism, cyber-attacks, or individuals and/or groups attempting to disrupt our businesses,business, or the businesses of third parties, may impact our operations in unpredictable ways and could adversely affect our results of operations, financial resultsposition or liquidity.

We are subject to the potentially adverse operating and financial effects of terrorist acts and threats, as well as cyber-attacks and other disruptive activities of individuals or groups. Our generation, transmission and distribution facilities, fuel storage facilities, information technology systems and other infrastructure facilities and systems and physical assets, could be direct targets of, or indirectly affected by, such activities. Terrorist acts or other similar events could harm our businessesbusiness by limiting theirour ability to generate, purchase or transmit power and by delaying theirour development and construction of new generating facilities and capital improvements to existing facilities. These events, and governmental actions in response, could result in a material decrease in revenues and significant additional costs to repair and insure our assets, and could adversely affect our operations by contributing to disruption of supplies and markets for natural gas, oil and other fuels. They could also impair our ability to raise capital by contributing to financial instability and lower economic activity.

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We operate in a highly regulated industry that requires the continued operation of sophisticated information technology systems and network infrastructure. Despite our implementation of security measures, all of our technology systems are vulnerable to disability, failures or unauthorized access, including due to cyber-attacks. If our technology systems were to fail or be breached and be unable to recover in a timely way, we would be unable to fulfill critical business functions, and sensitive confidential and other data could be compromised, which could have material adverse effect not only on our financial results. results but on our public reputation as well.


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The implementation of security guidelines and measures and maintenance of insurance, to the extent available, addressing such activities could increase costs. These types of events could materially adversely affect our financial results. In addition, these types of events could require significant management attention and resources, and could adversely affect our reputation among customers and the public.

A disruption of the regional electric transmission grid, natural gas pipeline infrastructure or other fuel sources, could negatively impact our business. Because generation, transmission systems and natural gas pipelines are part of an interconnected system, we face the risk of possible loss of business due to a disruption caused by the impact of an event on the interconnected system (such as severe weather or a generator or transmission facility outage, pipeline rupture, or a sudden significant increase or decrease in wind generation), within our system or within a neighboring system. Any such disruption could have a material impact on our financial results.

Ongoing changes in the United States electric utility industry, including state and federal regulatory changes, a potential increase in the number or geographic scale of our competitors or the imposition of price limitations to address market volatility, could adversely affect our results of operations, financial position or liquidity.

The United States electric utility industry is currently experiencing increasing competitive pressures as a result of:

The Energy Policy Act of 2005 and the repeal of the Public Utility Holding Company Act of 1935;

Industry consolidation;

Consumer demands;

Transmission constraints;

Renewable resource supply requirements;

Resistance to the siting of utility infrastructure or to the granting of right-of-ways;

Technological advances; and

Greater availability of natural gas-fired power generation, and other factors.

FERC has implemented and continues to propose regulatory changes to increase access to the nationwide transmission grid by utility and non-utility purchasers and sellers of electricity. In addition, a number of states have implemented or are considering or currently implementing methods to introduce and promote retail competition. Industry deregulation in some states has led to the disaggregation of some vertically integrated utilities into separate generation, transmission and distribution businesses. Deregulation initiatives in a number of states may encourage further disaggregation. As a result, significant additional competitors could become active in the generation, transmission and distribution segments of our industry, which could adversely affect our results of operations, financial position or liquidity.

In addition, the independent system operators who oversee many of the wholesale power markets have in the past imposed, and may in the future continue to impose price limitations and other mechanisms to address some of the volatility in these markets. These types of price limitations and other mechanisms may adversely affect the profitability of generating facilities that sell energy into the wholesale power markets. Given the extreme volatility and lack of meaningful long-term price history in some of these markets and the imposition of price limitations by independent system operators, we may not be able to operate profitably in all wholesale power markets.


16



Governmental authorities may assess penalties on us if it is determined that we have not complied with environmental laws and regulations which could affect our results of operations, financial position or liquidity.

If we fail to comply with environmental laws and regulations, even if caused by factors beyond our control, that failure may result in the assessment of civil or criminal penalties and fines against us. Recent lawsuits by the EPA and various states filed against others within industries in which we operate highlight the environmental risks faced by generating facilities, in general, and coal-fired generating facilities in particular.

Market performance or changes in other assumptions could require us to make significant unplanned contributions to our pension plans and other postretirement benefit plans. Increasing costs associated with our defined benefit retirement plans may adversely affect our results of operations, financial position or liquidity.

We have a defined benefit pension plan that covers a substantial portion of our employees. Assumptions related to future costs, return on investments, interest rates and other actuarial assumptions have a significant impact on our funding requirements related to these plans. These estimates and assumptions may change based on actual return on plan assets, changes in interest rates and changes in governmental regulations.

Increasing costs associated with our health care plans and other benefits may adversely affect our results of operations, financial position or liquidity.

The costs of providing health care benefits to our employees and retirees have increased substantially in recent years. We believe that our employee benefit costs, including costs related to health care plans for our employees and former employees, will continue to rise. The increasing costs and funding requirements associated with our health care plans may adversely affect our results of operations, financial position or liquidity.

In March 2010, the President of the United States signed the Patient Protection and Affordable Care Act of 2010 as amended by the Health Care and Education Reconciliation Act of 2010 (collectively the “2010 Acts”). The 2010 Acts will have a substantial impact on health care providers, insurers, employers and individuals. The 2010 Acts will impact employers and businesses differently depending on the size of the organization and the specific impacts on a company’s employees. Certain provisions of the 2010 Acts becameare effective during our 2010 open enrollment period (November 1, 2010) while other provisions of the 2010 Acts will be effective in future years. Although the constitutional validity of the 2010 Acts is the subject of numerous lawsuits now pending in the federal courts, the outcome of which is uncertain, theThe 2010 Acts could require, among other things, changes to our current employee benefit plans and in our administrative and accounting processes.processes as well as changes to the costs of our plans. The ultimate extent and cost of these changes cannot be determined at this time and are being evaluated and updated as related regulations and interpretations of the 2010 Acts become available, and as the results of pending litigation become final.

We have disclosed a material weakness in our internal control over financial reporting, and if we do not adequately remediate this weakness or if we have other material weaknesses or significant deficiencies in our internal control over financial reporting our business and financial condition may be adversely affected.available.

Our management is responsible for establishingelectric utility rates are regulated on a state-by-state basis by the relevant state regulatory authorities based on an analysis of our costs, as reviewed and maintaining adequate internal control over financial reporting as defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934, as amended. As disclosed in Item 9A, management identified a material weakness in our internal control over financial reporting relating to accounting for income taxes. A material weakness is a deficiency, or combination of deficiencies, that resultapproved in a reasonable possibilityregulatory proceeding. Within our utility rates we have generally recovered the cost of providing employee benefits. As benefit costs continue to rise, there can be no assurance that a material misstatement of a company's annual or interim financial statementsthe state public utility commissions will not be prevented or detected on a timely basis. As a result of this material weakness, our management concluded that our internal control over financial reporting and our disclosure controls and procedures were not effective as of December 31, 2011. Management is taking measures to remediate the material weakness and to enhance our internal controls over financial reporting. If our remedial measures are insufficient to address the material weakness, or if additional material weaknesses or significant deficiencies in our internal control occur in the future, our financial statements may contain material misstatements or other errors and we could be required to restate our financial results. If we cannot produce reliable financial reports, we may be unable to obtain additional financing, and our business and financial condition could be harmed.

allow recovery.


ITEM 1B.    UNRESOLVED STAFF COMMENTS

None.



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ITEM 3.LEGAL PROCEEDINGS

Information regarding our legal proceedings is incorporated herein by reference to the "Legal Proceedings"“Legal Proceedings” sub caption within Item 8, Note 1211, "Commitments“Commitments and Contingencies," of our Notes to Financial Statements in this Annual Report on Form 10-K.


17



PART II

ITEM 5.MARKET FOR REGISTRANT'SREGISTRANT’S COMMON EQUITY AND RELATED STOCKHOLDER
MATTERS

All of our common stock is held by our parent company, Black Hills Corporation. Accordingly, there is no established trading market for our common stock.


ITEM 7.MANAGEMENT'SMANAGEMENT’S DISCUSSION AND ANALYSIS OF RESULTS OF OPERATIONS

Non-GAAP Financial Measure

The following discussion includes financial information prepared in accordance with GAAP, as well as another financial measure, gross margin, that is considered a “non-GAAP financial measure.” Generally, a non-GAAP financial measure is a numerical measure of a company’s 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. Gross margin (revenue less cost of sales) is a non-GAAP financial measure due to the exclusion of depreciation from the measure. The presentation of gross margin is intended to supplement investors’ understanding of our operating performance.

In our Management’s Discussion and Analysis of Results of Operations, Gross margin is calculated as operating revenue less cost of fuel and purchased power. Our gross margin is impacted by the fluctuations in power purchases and natural gas and other fuel supply costs. However, while these fluctuating costs impact gross margin as a percentage of revenue, they only impact total gross margin if the costs cannot be passed through to our customers.

Our gross margin measure may not be comparable to other companies’ gross margin measure. Furthermore, this measure is not intended to replace operating income as determined in accordance with GAAP as an indicator of operating performance.

For the years ended December 31,2011201020092013Variance2012Variance2011
(in thousands)
 (in thousands)
Revenue$245,631
$229,763
$207,079
$254,027
$10,718
$243,309
$(2,322)$245,631
Fuel and purchased power93,222
87,757
91,349
89,437
1,918
87,519
(5,703)93,222
Gross margin152,409
142,006
115,730
164,590
8,800
155,790
3,381
152,409
  
Operating expenses98,457
92,976
80,925
102,246
4,037
98,209
(248)98,457
Gain on sale of operating assets(768)(6,238)



768
(768)
Operating income54,720
55,268
34,805
62,344
4,763
57,581
2,861
54,720
  
Interest expense, net(16,139)(16,513)(11,164)(19,291)(2,226)(17,065)(926)(16,139)
Other income506
3,254
7,802
539
(340)879
373
506
Income tax expense(11,990)(10,741)(8,304)(13,419)890
(14,309)(2,319)(11,990)
Net income$27,097
$31,268
$23,139
$30,173
$3,087
$27,086
$(11)$27,097


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The following tables provide certain electric utility operating statistics for the years ended December 31 (dollars in thousands):
Revenue
Customer Base2013Percentage Change2012Percentage Change2011
Residential$64,566
10 %$58,523
(2)%$59,826
Commercial80,289
9 %73,858
1 %72,889
Industrial27,705
8 %25,656
 %25,723
Municipal3,421
5 %3,268
3 %3,172
Total retail sales175,981
9 %161,305
 %161,610
Contract wholesale21,956
8 %20,290
12 %18,105
Wholesale off-system29,580
(7)%31,905
(9)%34,889
Total electric sales227,517
7 %213,500
(1)%214,604
Other revenue26,510
(11)%29,809
(4)%31,027
Total revenue$254,027
4 %$243,309
(1)%$245,631

Electric Revenue
Customer Base2011Percentage Change2010Percentage Change2009
Residential$59,826
12 %$53,549
10 %$48,586
Commercial72,889
10 %65,997
10 %59,897
Industrial25,723
14 %22,621
13 %20,014
Municipal3,172
5 %3,029
11 %2,735
Total retail sales161,610
11 %145,196
11 %131,232
Contract wholesale18,105
(21)%22,996
(9)%25,358
Wholesale off-system34,889
(4)%36,354
13 %32,212
Total electric sales214,604
5 %204,546
8 %188,802
Other revenue31,027
23 %25,217
38 %18,277
Total revenue$245,631
7 %$229,763
11 %$207,079


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Megawatt-Hours Sold
Customer Base2011Percentage Change2010Percentage Change20092013Percentage Change2012Percentage Change2011
Residential550,935
1 %547,193
3 %529,825
555,204
4 %532,342
(3)%550,935
Commercial720,978
 %720,119
0 %723,360
730,701
 %731,785
1 %720,978
Industrial408,337
7 %382,562
8 %353,041
404,009
(1)%407,301
 %408,337
Municipal34,235
1 %33,908
0 %33,948
34,344
(4)%35,933
5 %34,235
Total retail sales1,714,485
2 %1,683,782
3 %1,640,174
1,724,258
1 %1,707,361
 %1,714,485
Contract wholesale349,520
(25)%468,782
(27)%645,297
357,193
5 %340,036
(3)%349,520
Wholesale off-system1,226,548
5 %1,163,058
15 %1,009,574
1,002,847
(21)%1,263,457
3 %1,226,548
Total electric sales3,290,553
(1)%3,315,622
1 %3,295,045
3,084,298
(7)%3,310,854
1 %3,290,553
Losses and company use162,316
24 %131,263
(18)%159,207
158,845
(20)%197,355
22 %162,316
Total energy3,452,869
 %3,446,885
0 %3,454,252
3,243,143
(8)%3,508,209
2 %3,452,869

We own approximately 491471 MW of electric utility generating capacity and purchase an additional 50 MW under a long-term agreement expiring in 2023.

Regulated Power Plant Fleet Availability2011 20102009201320122011
Coal-fired plants(a)88.8%
(a) 
93.5%90.3%96.3%91.9%88.8%
Other plants95.8% 95.7%97.7%96.8%98.5%95.8%
Total availability91.5% 94.4%93.5%96.5%94.5%91.5%
_____________________________
(a)2011 reflects a planned major outage at the PacifiCorp-operated Wyodak plant.

Resources2011Percentage Change2010Percentage Change20092013Percentage Change2012Percentage Change2011
MWh generated:  
Coal1,717,008
(14)%1,987,037
15 %1,721,074
1,768,483
(2)%1,796,936
5 %1,717,008
Gas15,221
(21)%19,269
(59)%46,723
33,374
1 %33,183
118 %15,221
1,732,229
(14)%2,006,306
13 %1,767,797
1,801,857
(2)%1,830,119
6 %1,732,229
  
MWh purchased1,720,640
19 %1,440,579
(15)%1,686,455
1,441,286
(14)%1,678,090
(2)%1,720,640
Total resources3,452,869
 %3,446,885
0 %3,454,252
3,243,143
(8)%3,508,209
2 %3,452,869

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Heating and Cooling Degree Days201120102009201320122011
 
Actual  
Heating degree days7,579
7,272
7,753
7,582
6,206
7,579
Cooling degree days700
532
354
724
937
700
  
Variance from 30-year average  
Heating degree days5%1 %8 %9%(13)%5%
Cooling degree days17%(11)%(41)%8%47 %17%

20112013 Compared to 20102012

Gross margin increased primarily due to a return on additional investments which increased base electric margins by $5.5 million and $2.7 million from the Cheyenne Prairie construction financing rider.

$10.4 millionOperations and maintenanceincreased primarily due to an increase in vegetation management, plant overhaul and maintenance costs, and employee compensation and benefit costs.

Interest expense, net increased primarily due to lower interest income received on affiliate borrowings and increased allocations of corporate debt costs.

Other income, net was comparable to the prior year.

Income tax expense: The effective tax rate decreased in 2013 primarily due to the result of the retroactive reinstatement of research and development credits.

2012 Compared to 2011

Gross margin increased primarily due to an increase of $1.6 million from the Environmental Improvement Cost Recovery Adjustment rider, a $16.6$4.5 million increase related to the impactin wholesale and transmission margins as a result of the outcome of our rate cases and increased transmission marginsprices partially offset by lower margins due to$2.5 million from the termination2012 expiration of power sales contracts upon a customer's purchase of an ownership interest in the Wygen III generating facility.reserve capacity agreement with PacifiCorp.


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Operations and maintenanceincreased $5.5 million primarily duewere comparable to additional costs of $1.6 million associated with Wygen III which commenced commercial operation on April 1, 2010, and increased allocation ofthe prior year. Increased corporate costs partiallyallocations were offset by lower costs related to the suspension of operations at the OsageBen French plant.

Gain on sale of operating assets in 2011 relatesrelated to the sale of assets to a related party. The gain on sale of operating assets in 2010 represents the sale of a 23% ownership interest in the Wygen III generating facility to the City of Gillette, WY.

Interest expense, net decreased $0.4 millionincreased primarily due to lower interest expense primarily related to the repayment of higher rate debt during 2010, partially offset by a decrease in AFUDC associated with borrowed funds due to completed construction of Wygen III.interest income from lower utility money pool borrowings.

Other income, net decreased $2.7 million primarily due to a decrease of $2.0 million in AFUDC-equity duewas comparable to the placement of Wygen III into commercial operation.prior year.

Income tax expense: The effective tax rate increased from the same period in the prior yearprimarily due to a prior yearunfavorable true-up adjustments and lower flow through of the tax benefit for a repairs deduction takenattributable to repair and maintenance costs deducted for tax purposes and the flow-through treatment of such tax benefit resulting from a rate case settlement in 2010.purposes.

2010 Compared to 2009

Gross margin increased $26.3 million primarily due to an $18.5 million increase related to the impact of the outcome of our rate cases, an increase of $3.0 million in off-system sales margin resulting from a change in methodology used to allocate the lowest cost resource, and increased intercompany revenues of $2.4 million due to a new shared services agreement related to resources utilized by affiliated entities.

Operations and maintenance increased $12.1 million primarily due to additional costs of $6.8 million associated with Wygen III which commenced commercial operation on April 1, 2010, and costs of $2.0 million associated with a major overhaul at the Ben French plant.

Gain on sale of operating assets: A $6.2 million gain on sale was recognized on the sale of a 23% ownership interest in the Wygen III generating facility to the City of Gillette, WY.

Interest expense, net increased $5.3 million primarily due to higher net interest expense of $2.9 million compared to the same period in the prior year resulting from higher rates on long-term debt compared to rates on short-term debt and a decrease of $2.1 million in AFUDC-borrowed.

Other income decreased $4.5 million primarily due to a decrease of $3.1 million in AFUDC-equity associated with the construction of our Wygen III facility. Additionally, 2009 included a gain of $1.1 million from the sale of SO2 emission credits and a gain of $0.5 million on the sale of a 25% ownership interest in the Wygen III facility.

Income tax expense: The effective tax rate for 2010 was comparable to the same period in the prior year.

Rate Increase SettlementSignificant Events

South Dakota

On September 30, 2009,In December 2012, we filed a rate case with the SDPUC requesting an electric revenue increase of $13.7 million, or 9.94%, to recover costs associated with Wygen IIIinvestment in distribution and othertransmission lines, generation transmission and distribution assetsplant upgrades, environmental compliance and increased operating expenses incurred during the past four years. In March 2010,costs. On September 17, 2013, the SDPUC approved a $24.1 million increase in interim rates, subject to refund, effective April 1, 2010 for South Dakota customers. On July 7, 2010, the SDPUC approved a final revenue increase of $15.2 million and a base rate increase of $22.0$8.8 million, with anor 6.4%, effective date of April 1, 2010. The approved capital structure and return on equity are confidential. A refund of $2.6 million was provided to customers in the third quarter of 2010.June 16, 2013.


20



As part of the settlement stipulation, we agreed (1) to credit customers 65% of power marketing operating income with a minimum of $2.0 million per year; (2) that rates will include a South Dakota Surplus Energy Credit of $2.5 million in year one (fiscal year ending March 2011), $2.25 million in fiscal year two, $2.0 million in fiscal year three and zero thereafter; and (3) a moratorium until April 2013 for any base rate increase excluding any extraordinary events as defined in the stipulation agreement; while (4) the SDPUC agreed to adjust the power marketing sales portion of the Fuel and Purchased Power Adjustment clause to directly assign renewable resources and firm purchases to the customer load.Winter Storm

In May 2011,October 2013, the City of Rapid City, SD, experienced the second most severe blizzard in history which left most of our customers experiencing power outages. Repairing the substantial and widespread damage far exceeded average annual storm-related costs and in December 2013, we submitted an application to the SDPUC for approval to defer the incremental costs of approximately $2.5 million, including labor, materials and supplies, equipment and outside contractors that were incurred in the efforts to restore power to our customers. In January 2014, approval was received and these costs are included in Regulatory assets until the next rate case filing.

Power Plant Suspension/Retirements

In order to comply with environmental regulations, including the new EPA Industrial and Commercial Boiler Regulations for Area Sources of Hazardous Air Pollutants regulations, operations at our 25 MW coal-fired Ben French power plant were suspended as of August 31, 2012. Operations at our 35 MW coal-fired Osage power plant were suspended as of October 1, 2010. These plants as well as our 22 MW coal-fired plant Neil Simpson I will be retired on or before March 21, 2014. We intend to operate Neil Simpson I until the planned retirement date.

Cheyenne Prairie

As a result of the planned plant retirements for some of our older coal-fired power plants discussed above, Cheyenne Light and Black Hills Power filed a joint CPCN to construct a new $222 million, 132 MW natural gas-fired electric generation facility in Cheyenne, Wyoming. The facility will include construction of one simple-cycle, 37 MW combustion turbine that will be wholly owned by Cheyenne Light and one combined cycle 95 MW unit that will be jointly owned by Cheyenne Light (40 MW) and Black Hills Power (55 MW). The project is expected to be placed into service in the fourth quarter of 2014.

In December 2012, we filed a request with the SDPUC to use a construction financing rider during the construction of Cheyenne Prairie in lieu of traditional AFUDC. This rider is similar to the one approved by the WPSC for Cheyenne Light and Black Hills Power for Wyoming customers in 2012. On January 17, 2013, the SDPUC approved an Environmental Improvement Cost Recovery Adjustment tariff fora stipulation with interim rates effective April 1, 2013 and on Sept. 17, 2013, the SDPUC approved the construction financing rider. The rider allows Black Hills Power. This tariff, which was implementedPower to recover Black Hills Power's investment of $25 million for pollution control equipment at the PacifiCorp operated Wyodak plant, went into effect June 1, 2011 with an annual revenue increase of $3.1 million.

Wyoming

On October 19, 2009, we filedearn and collect a rate case withof return during the WPSC requesting an electric revenue increase to recover costs associated with Wygen III and other generation, transmission and distribution assets and increased operating expenses incurred since 1995. On May 4, 2010, we filed a settlement stipulation agreement with the WPSC for a $3.1 million increase in annual revenues. On May 13, 2010, WPSC approved these new rates basedconstruction period on a return on equity of 10.5% with a capital structure of 52% equity and 48% debt. Rates went into effect on June 1, 2010.

Wygen III Power Plant Project

The 110 MW coal-fired electric generation facility was completed and commenced commercial operations on April 1, 2010. Total cost of construction wasits approximately $232.3 million, which includes AFUDC. In April 2009, we sold a 25% ownership interest to MDU. At closing, MDU made a payment to us for its 25% share of the costs to date for the on-going construction of the facility. MDU reimbursed us monthly for its 25%40% share of the total costs paidproject cost that relates to complete the project. In July 2010, we sold an additional 23% ownership interest in Wygen III to the City of Gillette for $62.0 million. Under both agreements, we retain responsibility for operation of the facility with a life-of-plant site lease. MDU and the City of Gillette will pay us for administrative services and share in the costs of operating the plant for the life of the facility. We have a coal supply agreement in place with WRDC and WRDC has coal supply agreements with MDU and the City of Gillette for their share of the plant.South Dakota customers.

Critical Accounting Estimates

We prepare our financial statements in conformity with GAAP. In many cases, the accounting treatment of a particular transaction is specifically dictated by GAAP and does not require management'smanagement’s judgment in application. There are also areas which require management'smanagement’s judgment in selecting among available GAAP alternatives. We are required to make certain estimates, judgments and assumptions that we believe are reasonable based upon the information available. These estimates and assumptions affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the periods presented. Actual results may differ from our estimates and to the extent there are material differences between these estimates, judgments or assumptions and actual results, our financial statements will be affected. We believe the following accounting estimates are the most critical in understanding and evaluating our reported financial results.

The following discussion of our critical accounting estimates should be read in conjunction with Note 1, "Business“Business Description and Summary of Significant Accounting Policies"Policies ” of our Notes to Financial Statements in this Annual Report on Form 10-K.

Impairment of Long-lived Assets

We evaluate for impairment, the carrying values of our long-lived assets whenever indicators of impairment exist.

For long-lived assets with finite lives, this evaluation is based upon our projections of anticipated future cash flows (undiscounted and without interest charges) from the assets being evaluated. If the sum of the anticipated future cash flows over the expected useful life of the assets is less than the assets' carrying value, then a permanent non-cash write-down equal to the difference between the assets' carrying value and the assets' fair value is required to be charged to earnings. In estimating future cash flows, we generally use a probability weighted average expected cash flow method with assumptions based on those used for internal budgets. The determination of future cash flows, and, if required, fair value of a long-lived asset is by its nature a highly subjective judgment. Significant assumptions are required in the forecast of future operating results used in the preparation of the long-term estimated cash flows. Changes in these estimates could have a material effect on the evaluation of our long-lived assets. There have been no impairments taken in 2011, 2010 or 2009.


21



Pension and Other Postretirement Benefits

The Company, as described in Note 98 to the Financial Statements in this Annual Report on Form 10-K, has a defined benefit pension plan and post-retirement healthcare plan. As of December 31, 2012, a Master Trust was established for the investment of assets of the Plan and other Employer-sponsored retirement plans. Each participating retirement plan has an undivided interest in the Master Trust.


21



Accounting for pension and other postretirement benefit obligations involves numerous assumptions, the most significant of which relate to the discount rate for measuring the present value of future plan obligations; expected long-term rates of return on plan assets; rate of future increases in compensation levels; and healthcare cost projections. The determination of our obligation and expenses for pension and other postretirement benefits is dependent on the assumptions determined by management and used by actuaries in calculating the amounts. Although we believe our assumptions are appropriate, significant differences in our actual experience or significant changes in our assumptions may materially affect our pension and other postretirement obligations and our future expense.

The discount rate used to determine annual defined benefit pension costs accruals will be 5.1% in 2014 and the discount rate used in 2013 was 4.3%. In July 2009,selecting the Board of Directors frozediscount rate, we consider cash flow durations for each plan’s liabilities on high credit fixed income yield curves for comparable durations. We do not pre-fund our Defined Benefit Pension Plan to certain new participants and transferred certain existing participants to an age and service based defined contribution plan, effective January 1, 2010. Plan assets and obligations for the Black Hills Corporation Plan which covers eligible employees of Black Hills Power were revalued as of July 31, 2009 in conjunctionnon-qualified plans or postretirement healthcare plans.

Income Taxes

We file a federal income tax return with the curtailmentother members of the plan. As a result, we recognized a pre-tax curtailment expense of approximately $0.2 million in the third quarter of 2009. In July 2009, the Board of Directors of Black Hills Corporation also approved amendmentsParent consolidated group. For financial statement purposes, federal income taxes are allocated to the BHC Retiree Healthcare Plan. This plan covers eligible employees of Black Hills Power. Effective January 1, 2010, the amendment changed the plan from a cost sharing plan to an RMSA for non-union employees.

In September 2010, the bargaining unit participants in the Defined Benefit Pension Plan voted to freeze all new bargaining unit employees from participation in the Plan and to freeze the benefits of current bargaining unit participants except for the following group: those bargaining unit participants who are both 1) age 45 or older as of December 31, 2010 and have 10 years or more of credited service as of January 1, 2011; and 2) elect to continue to accrue additional benefits under the pension plan and consequently fore-go the additional age and points based employer contribution under the Company's 401(k) retirement savings plan. As a result of this freeze, we recognized a pre-tax curtailment expense of less than $0.1 million in the fourth quarter of 2010. Pension Plan benefits areindividual companies based on years of service and compensation levels during the highest five consecutive years of the last ten years of service. These changes were effective January 1, 2011.

Valuation of Deferred Tax Assetsamounts calculated on a separate return basis.

We use the liability method of accounting for income taxes. Under this method, deferred income taxes are recognized, at currently enacted income tax rates, to reflect the tax effect of temporary differences between the financial and tax basis of assets and liabilities, as well as operating loss and tax credit carryforwards. The amountSuch temporary differences are the result of provisions in the income tax law that either require or permit certain items to be reported on the income tax return in a different period than they are reported in the financial statements. We classify deferred tax assets recognized is limited toand liabilities into current and non-current amounts based on the amountnature of the benefit that is more likely than not to be realized.related assets and liabilities.

In assessing the realization of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized and provides any necessary valuation allowances as required. If we determine that we will be unable to realize all or part of our deferred tax assets in the future, an adjustment to the deferred tax asset would be charged to income in the period such determination was made. Although we believe our assumptions, judgments and estimates are reasonable, changes in tax laws or our interpretations of tax laws and the resolution of current and any future tax audits could significantly impact the amounts provided for income taxes in our financial statements. With respect to changes in tax law, the American Taxpayer Relief Act of 2012, which was enacted January 2, 2013, did not have a material impact on the amounts provided for income taxes including our ability to realize deferred tax assets. As expected, certain provisions of the ATRA involving primarily the extension of 50% bonus depreciation resulted in minimal utilization of Federal net operating loss carryforwards. In fact, the 50% bonus depreciation was a contributing factor to the generation of a net operating loss for Federal income tax purposes in 2013.

In addition, on September 13, 2013, the U.S. Treasury issued final regulations addressing the tax consequences associated with amounts paid to acquire, produce, or improve tangible property. The regulations have the effect of a change in law and as a result the impact should be taken into account in the period of adoption. In general, such regulations apply to tax years beginning on or after January 1, 2014, with early adoption permitted. We expect to implement most, if not all, of the provisions of the final regulations in 2014. Procedural guidance is expected from IRS in early 2014 to facilitate implementation. Analysis performed to date indicates no material impact to our financial statements. See Note 6 in our Notes to Financial Statements in this Annual Report on Form 10-K for additional information.

Contingencies

When it is probable that an environmental or other legal liability has been incurred, a loss is recognized when the amount of the loss can be reasonably estimated. Estimates of the probability and the amount of loss are made based on currently available facts. Accounting for contingencies requires significant judgment regarding the estimated probabilities and ranges of exposure to potential liability. Our assessment of our exposure to contingencies could change to the extent there are additional future developments, or as more information becomes available. If actual obligations incurred are different from our estimates, the recognition of the actual amounts could have a material impact on our financial position, and results of operations.operations and cash flows. We describe any contingencies in Note 11 of the Financial Statements in this Annual Report on Form 10-K.


22



ITEM 8.FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

INDEX TO FINANCIAL STATEMENTS



 Page
  
Management’s Report on Internal Controls Over Financial Reporting
Report of Independent Registered Public Accounting Firm
  
Statements of Income for the three years ended December 31, 20112013
  
Statements of Comprehensive Income (Loss) for the three years ended December 31, 20112013
  
Balance Sheets as of December 31, 20112013 and 20102012
  
Statements of Cash Flows for the three years ended December 31, 20112013
  
Statements of Common Stockholder'sStockholder’s Equity for the three years ended December 31, 20112013
  
Notes to Financial Statements


23



Management’s Report on Internal Control over Financial Reporting

Management of Black Hills Power is responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934, as amended. Our internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.

All internal control systems, no matter how well designed, have inherent limitations. Therefore, even those systems determined to be effective can provide only reasonable assurance with respect to financial statement preparation and presentation. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
Under the supervision and with the participation of management, including our Chief Executive Officer and Chief Financial Officer, we conducted an evaluation of the effectiveness of our internal control over financial reporting as of December 31, 2013, based on the criteria set forth in Internal Control - Integrated Framework (1992)issued by the Committee of Sponsoring Organizations of the Treadway Commission. This evaluation included review of the documentation of controls, evaluation of the design effectiveness of controls, testing of the operating effectiveness of controls and a conclusion on this evaluation. Based on our evaluation, we have concluded that our internal control over financial reporting was effective as of December 31, 2013.

This annual report does not include an attestation report of our registered public accounting firm regarding internal control over financial reporting because this requirement is inapplicable to companies such as ours which are known as non-accelerated filers.

Black Hills Power


24



REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholder of
Black Hills Power, Inc.
Rapid City, South Dakota

We have audited the accompanying balance sheets of Black Hills Power, Inc. (the "Company"“Company”) as of December 31, 20112013 and 20102012, and the related statements of income, statements of comprehensive income (loss), common stockholder'sstockholder’s equity and cash flows for each of the three years in the period ended December 31, 20112013. Our audits also included the financial statement schedule listed in the Index at Item 15. These financial statements and financial statement schedule are the responsibility of the Company'sCompany’s management. Our responsibility is to express an opinion on the financial statements and financial statement schedule based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Company'sCompany’s internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, such financial statements present fairly, in all material respects, the financial position of Black Hills Power, Inc. as of December 31, 20112013 and 20102012, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 20112013, in conformity with accounting principles generally accepted in the United States of America. Also, in our opinion, such financial statement schedule, when considered in relation to the basic financial statements taken as a whole, present fairly in all material respects the information set forth therein.

/s/ DELOITTE & TOUCHE LLP

Minneapolis, Minnesota
March __, 2012February 27, 2014


2425



BLACK HILLS POWER, INC.
STATEMENTS OF INCOME

Years ended December 31,201120102009201320122011
(in thousands)(in thousands)
  
Revenue$245,631
$229,763
$207,079
$254,027
$243,309
$245,631
  
Operating expenses:  
Fuel and purchased power93,222
87,757
91,349
89,437
87,519
93,222
Operations and maintenance66,683
68,884
57,116
68,857
65,835
66,683
Gain on sale of operating assets(768)(6,238)


(768)
Depreciation and amortization27,217
22,030
19,465
28,125
27,621
27,217
Taxes - property4,557
2,062
4,344
5,264
4,753
4,557
Total operating expenses190,911
174,495
172,274
191,683
185,728
190,911
  
Operating income54,720
55,268
34,805
62,344
57,581
54,720
  
Other income (expense):  
Interest expense(16,712)(18,737)(15,779)(19,725)(17,602)(16,712)
AFUDC - borrowed419
2,224
4,357
186
161
419
Interest income154
318
258
248
376
154
AFUDC - equity705
2,748
5,831
368
325
705
Other expense(344)(35)
(196)
(344)
Other income145
223
1,971
367
554
145
Total other income (expense)(15,633)(13,259)(3,362)(18,752)(16,186)(15,633)
  
Income from continuing operations before income taxes39,087
42,009
31,443
43,592
41,395
39,087
Income tax expense(11,990)(10,741)(8,304)(13,419)(14,309)(11,990)
  
Net income$27,097
$31,268
$23,139
$30,173
$27,086
$27,097


The accompanying notes to financial statements are an integral part of these financial statements.


2526




BLACK HILLS POWER, INC.
STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

Years ended December 31,201120102009
 (in thousands)
    
Net income available for common stock$27,097
$31,268
$23,139
    
Other comprehensive income (loss), net of tax:   
Benefit plan liability adjustments(70)(94)98
Fair value adjustment on derivatives designated as cash flow hedges
4
(2)
Reclassification adjustment of cash flow hedges settled and included in net income (loss)42
41
40
Reclassification adjustment of cash flow hedges settled and included in regulatory assets or liabilities


Other comprehensive income (loss), net of tax(28)(49)136
    
Comprehensive income (loss), net of tax$27,069
$31,219
$23,275
Years ended December 31,201320122011
 (in thousands)
    
Net income$30,173
$27,086
$27,097
    
Other comprehensive income (loss), net of tax:   
Benefit plan liability adjustments - net gain (loss) (net of tax of ($73), $93 and $38, respectively)139
(171)(70)
Reclassification adjustment of benefit plan liability - net gain (loss) (net of tax of $(23), $0 and $0)43


    
Reclassification adjustment of cash flow hedges settled and included in net income (loss) (net of tax of $(23), $(23) and $(23), respectively)41
41
42
    
Other comprehensive income (loss), net of tax223
(130)(28)
    
Comprehensive income (loss), net of tax$30,396
$26,956
$27,069

See Note 87 for additional disclosure related to comprehensive income.

The accompanying notes to financial statements are an integral part of these financial statements.

2627




BLACK HILLS POWER, INC.
BALANCE SHEETS
As of December 31,20132012
 (in thousands, except share amounts)
ASSETS  
Current assets:  
Cash and cash equivalents$2,259
$3,805
Receivables - customers, net25,799
23,867
Receivables - affiliates4,934
5,027
Other receivables, net579
673
Money pool notes receivable17,292
31,645
Materials, supplies and fuel23,278
20,633
Deferred income tax assets, net, current2,170
16,631
Regulatory assets, current4,891
4,998
Other current assets4,933
5,781
Total current assets86,135
113,060
   
Investments4,431
4,359
   
Property, plant and equipment1,095,884
1,024,768
Less accumulated depreciation and amortization(334,174)(322,830)
Total property, plant and equipment, net761,710
701,938
   
Other assets:  
Regulatory assets, non-current40,373
48,244
Other, non-current assets8,524
5,322
Total other assets48,897
53,566
TOTAL ASSETS$901,173
$872,923
   
   
The accompanying notes to financial statements are an integral part of these financial statements.
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   

28



At December 31,20112010
 (in thousands, except share amounts)
ASSETS  
Current assets:  
Cash and cash equivalents$2,812
$2,045
Receivables - customers, net24,668
28,716
Receivables - affiliates6,998
6,891
Other receivables, net786
2,077
Money pool notes receivable50,477
39,862
Materials, supplies and fuel22,074
21,259
Regulatory assets, current6,605
3,584
Other current assets4,255
3,712
Total current assets118,675
108,146
   
Investments4,592
4,396
   
Property, plant and equipment995,772
962,640
Less accumulated depreciation and amortization(313,581)(304,800)
Total property, plant and equipment, net682,191
657,840
   
Other assets:  
Regulatory assets, non-current45,160
37,740
Other, non-current assets3,812
3,610
Total other assets48,972
41,350
TOTAL ASSETS$854,430
$811,732
   
LIABILITIES AND STOCKHOLDER'S EQUITY  
Current liabilities:  
Current maturities of long-term debt$37
$81
Accounts payable12,560
14,828
Accounts payable - affiliates18,598
12,562
Accrued liabilities16,448
15,541
Regulatory liabilities, current853
1,932
Deferred income tax liabilities, net, current848
859
Total current liabilities49,344
45,803
   
Long-term debt, net of current maturities276,390
276,422
   
Deferred credits and other liabilities:  
Deferred income tax liabilities, net, non-current113,320
122,319
Regulatory liabilities, non-current39,621
28,276
Benefit plan liabilities31,097
19,581
Other, non-current liabilities8,172
9,914
Total deferred credits and other liabilities192,210
180,090
   
Commitments and contingencies (Notes 5, 9, 10 and 12)  
   
Stockholder's equity:  
Common stock $1 par value; 50,000,000 shares authorized; 23,416,396 shares issued23,416
23,416
Additional paid-in capital39,575
39,575
Retained earnings274,785
247,688
Accumulated other comprehensive loss(1,290)(1,262)
Total stockholder's equity336,486
309,417
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY$854,430
$811,732
BLACK HILLS POWER, INC.
BALANCE SHEETS
(Continued)
   
As of December 31,20132012
 (in thousands, except share amounts)
LIABILITIES AND STOCKHOLDER’S EQUITY  
Current liabilities:  
Accounts payable$26,144
$14,318
Accounts payable - affiliates21,082
21,896
Accrued liabilities14,966
15,477
Regulatory liabilities, current161
37
Total current liabilities62,353
51,728
   
Long-term debt269,948
269,944
   
Deferred credits and other liabilities:  
Deferred income tax liabilities, net, non-current167,309
158,918
Regulatory liabilities, non-current43,357
43,849
Benefit plan liabilities12,105
25,888
Other, non-current liabilities4,247
3,138
Total deferred credits and other liabilities227,018
231,793
   
Commitments and contingencies (Notes 4, 8, 9 and 11)  
   
Stockholder’s equity:  
Common stock $1 par value; 50,000,000 shares authorized; 23,416,396 shares issued23,416
23,416
Additional paid-in capital39,575
39,575
Retained earnings280,060
257,887
Accumulated other comprehensive loss(1,197)(1,420)
Total stockholder’s equity341,854
319,458
TOTAL LIABILITIES AND STOCKHOLDER’S EQUITY$901,173
$872,923

The accompanying notes to financial statements are an integral part of these financial statements.


2729



BLACK HILLS POWER, INC.
STATEMENTS OF CASH FLOWS

Years ended December 31,201120102009201320122011
(in thousands)(in thousands)
Operating activities:  
Net income$27,097
$31,268
$23,139
$30,173
$27,086
$27,097
Adjustments to reconcile net income to net cash provided by operating activities -  
Depreciation and amortization27,217
22,030
19,465
28,125
27,621
27,217
Deferred income taxes(2,931)25,626
11,600
13,582
24,628
(2,931)
AFUDC - equity(705)(2,748)(5,831)(368)(325)(705)
Gain on sale of operating assets(768)(6,238)


(768)
Employee benefits2,406
4,030
4,234
3,094
3,828
2,406
Other adjustments617
(4,335)240
1,400
1,187
617
Change in operating assets and liabilities -  
Accounts receivable and other current assets3,378
(14,541)13,233
(5,175)2,916
(973)
Accounts payable and other current liabilities989
(5,525)2,556
1,180
(903)989
Regulatory assets(1,211)3,883
(2,205)
Regulatory liabilities(1,964)3,562
586
Contributions to defined benefit pension plan
(8,798)
(2,299)(6,835)
Other operating activities(2,691)2,389
(859)(3,149)(6,625)(1,515)
Net cash provided by operating activities51,434
50,603
66,158
Net cash provided by (used in) operating activities66,563
72,578
51,434
  
Investing activities:  
Property, plant and equipment additions(40,910)(78,602)(146,148)(74,390)(40,415)(40,910)
Proceeds from sale of operating assets1,135
62,000
32,783


1,135
Notes receivable from affiliate companies, net(10,615)17,875
(82,737)6,353
(25,152)(10,615)
Other investing activities(197)2,202
1,067
(72)469
(197)
Net cash provided by (used in) investing activities(50,587)3,475
(195,035)(68,109)(65,098)(50,587)
  
Financing activities:  
Notes payable to affiliate companies, net

(45,184)
Long-term debt - issuance

180,000
Long-term debt - repayments(80)(52,566)(2,140)
(6,487)(80)
Other financing activities
(1,176)(2,094)
Net cash provided by (used in) financing activities(80)(53,742)130,582

(6,487)(80)
  
Net change in cash and cash equivalents767
336
1,705
(1,546)993
767
  
Cash and cash equivalents:  
Beginning of year2,045
1,709
4
3,805
2,812
2,045
End of year$2,812
$2,045
$1,709
$2,259
$3,805
$2,812

See Note 1110 for Supplemental Cash Flows information.
The accompanying notes to financial statements are an integral part of these financial statements.



28



BLACK HILLS POWER, INC.
STATEMENTS OF COMMON STOCKHOLDER'S EQUITY

 201120102009
 (in thousands)
Common stock shares:   
Balance beginning of year23,416
23,416
23,416
Issuance of common stock


Balance end of year23,416
23,416
23,416
    
Common stock amounts:   
Balance beginning of year$23,416
$23,416
$23,416
Issuance of common stock


Balance end of year$23,416
$23,416
$23,416
    
Additional paid-in capital:   
Balance beginning of year$39,575
$39,575
$39,575
Issuance of common stock


Balance end of year$39,575
$39,575
$39,575
    
Retained earnings:   
Balance beginning of year$247,688
$216,420
$193,281
Net income available for common stock27,097
31,268
23,139
Balance end of year$274,785
$247,688
$216,420
    
Accumulated other comprehensive loss:   
Balance beginning of year$(1,262)$(1,213)$(1,349)
Other comprehensive (loss) income, net of tax(28)(49)136
Balance end of year$(1,290)$(1,262)$(1,213)
    
Total stockholder's equity$336,486
$309,417
$278,198
    

The accompanying notes to financial statements are an integral part of these financial statements.

30



BLACK HILLS POWER, INC.
STATEMENTS OF COMMON STOCKHOLDER’S EQUITY

 201320122011
 (in thousands)
Common stock shares:   
Balance beginning of year23,416
23,416
23,416
Issuance of common stock


Balance end of year23,416
23,416
23,416
    
Common stock amounts:   
Balance beginning of year$23,416
$23,416
$23,416
Issuance of common stock


Balance end of year$23,416
$23,416
$23,416
    
Additional paid-in capital:   
Balance beginning of year$39,575
$39,575
$39,575
Issuance of common stock


Balance end of year$39,575
$39,575
$39,575
    
Retained earnings:   
Balance beginning of year$257,887
$274,785
$247,688
Net income30,173
27,086
27,097
Non-cash dividend to Parent company(8,000)(43,984)
Balance end of year$280,060
$257,887
$274,785
    
Accumulated other comprehensive loss:   
Balance beginning of year$(1,420)$(1,290)$(1,262)
Other comprehensive (loss) income, net of tax223
(130)(28)
Balance end of year$(1,197)$(1,420)$(1,290)
    
Total stockholder’s equity$341,854
$319,458
$336,486

The accompanying notes to financial statements are an integral part of these financial statements.

2931



NOTES TO FINANCIAL STATEMENTS
December 31, 20112013, 20102012 and 20092011




(1)    BUSINESS DESCRIPTION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Business Description

Black Hills Power, Inc. (the Company, "we," "us"“we,” “us” or "our"“our”) is an electric utility serving customers in South Dakota, Wyoming and Montana. We are a wholly-owned subsidiary of BHC or the Parent, a public registrant listed on the New York Stock Exchange.

Basis of Presentation

The financial statements include the accounts of Black Hills Power, Inc. and also our ownership interests in the assets, liabilities and expenses of our jointly owned facilities (Note 4).3) and are prepared in accordance with GAAP.

Use of Estimates and Basis of Presentation

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Cash Equivalents

We consider all highly liquid investments with an original maturity of three months or less to be cash equivalents.

Regulatory Accounting

Our regulated electric operations are subject to regulation by various state and federal agencies. The accounting policies followed are generally subject to the Uniform System of Accounts of FERC.

Our regulated utility operations follow accounting standards for regulated operations and our financial statements reflect the effects of the different rate making principles followed by the various jurisdictions regulating our electric operations. If rate recovery becomes unlikely or uncertain due to competition or regulatory action, these accounting standards may no longer apply to our regulated operations. In the event we determine that we no longer meet the criteria for following accounting standards for regulated operations, the accounting impact to us could be an extraordinary non-cash charge to operations in an amount that could be material.

Regulatory assets are included in Regulatory assets, current and Regulatory assets, non-current on the accompanying Balance Sheets. Regulatory liabilities are included in Regulatory liabilities, current and Regulatory liabilities, non-current on the accompanying Balance Sheets.

3032



OurWe had the following regulatory assets and liabilities for which we recover the costs, but we do not earn a return were as follows as of December 31 (in thousands):
Maximum Recovery Period20112010Maximum Recovery Period (in years)20132012
Regulatory assets:    
Unamortized loss on reacquired debt(a)14 years$2,765
$3,016
14$2,257
$2,501
AFUDC(b)45 years8,552
9,489
458,327
8,460
Employee benefit plans13 years27,602
18,049
Employee benefit plans(c)
1315,233
27,001
Deferred energy costs(a)1 year6,605
3,584
17,711
6,892
Flow through accounting(a)35 years5,789
4,772
359,723
8,019
Other 452
2,414
Other regulatory assets(a)
22,013
369
Total regulatory assets $51,765
$41,324
 $45,264
$53,242
    
Regulatory liabilities:    
Cost of removal for utility plant(a)53 years$23,347
$15,429
53$30,467
$26,630
Employee benefit plans13 years15,282
10,204
Other 1,845
4,575
Employee benefit plans(d)
1310,177
15,689
Other regulatory liabilities(e)
132,874
1,567
Total regulatory liabilities $40,474
$30,208
 $43,518
$43,886
____________________
(a)Recovery of costs but not allowed a rate of return.
(b)In addition to recovery of costs, we are allowed a rate of return.
(c)
In addition to recovery of costs, we are allowed a return on approximately $24 million according to the approved rate case.
(d)
Approximately $13 million is included in our rate base calculation as a reduction to rate base.
(e)
Approximately $0.8 million is included in our rate base calculation as a reduction to rate base.

Regulatory assets represent items we expect to recover from customers through probable future rates.

Unamortized Loss on Reacquired Debt- The early redemption premium on reacquired bonds is being amortized over the remaining term of the original bonds.

AFUDC - The equity component of AFUDC is considered a permanent difference for tax purposes with the tax benefit being flowed through to customers as prescribed or allowed by regulators. If, based on a regulator'sregulator’s action, it is probable the utility will recover the future increase in taxes payable represented by this flow-through treatment through a rate revenue increase, a regulatory asset is recognized. This regulatory asset itself is a temporary difference for which a deferred tax liability must be recognized. Accounting standards for income taxes specifically address AFUDC-equity, and require a gross-up of such amounts to reflect the revenue requirement associated with a rate-regulated environment.

Employee Benefit Plans - Employee benefit plans include the unrecognized prior service costs and net actuarial loss associated with our defined benefit pension plans and post-retirement benefit plans in regulatory assets rather than in accumulated other comprehensive income.

Deferred Energy Costs - Deferred energy and fuel cost adjustments represent the cost of electricity delivered to our electric utility customers in excess ofthat are either higher or lower than the current rates and which will be recovered or refunded in future rates. Deferred energy and fuel cost adjustments are recorded and recovered or amortized as approved by the appropriate state commission.

Flow-Through Accounting - Under flow-through accounting, the income tax effects of certain tax items are reflected in our cost of service for the customer in the year in which the tax benefits are realized and result in lower utility rates. This regulatory treatment was applied to the tax benefit generated by repair costs that were previously capitalized for tax purposes in a rate case settlement that was reached with respect to Black Hills Power in 2010. In this instance, the agreed upon rate increase was less than it would have been absent the flow-through treatment. A regulatory asset established to reflect the future increases in income taxes payable will be recovered from customers as the temporary differences reverse.


33



Regulatory liabilities represent items we expect to refund to customers through probable future decreases in rates.

Cost of Removal for Utility Plant - Cost of removal for utility plant represents the estimated cumulative net provisions for future removal costs included in depreciation expense for which there is no legal obligation for removal. Liabilities will be settled and trued up following completion of the related activities.


31



Employee Benefit Plans - Employee benefit plans represent the cumulative excess of pension and retiree healthcare costs recovered in rates over pension expense recorded in accordance with accounting standards for compensation - retirements.retirement benefits. In addition, this regulatory liability includes the income tax effect of the adjustment required under accounting for compensation - defined benefit plans, to record the full pension and post-retirement benefit obligations. Such income tax effect has been grossed-up to account for the revenue requirement aspect of a rate regulated environment.

Allowance for Funds Used During Construction

AFUDC represents the approximate composite cost of borrowed funds and a return on capital used to finance a project.

Accounts Receivable and Allowance for Doubtful Accounts

Accounts receivable consist of sales to residential, commercial, industrial, municipal and other customers all of which do not bear interest. These accounts receivablesreceivable are stated at billed and unbilled amounts net of write-offs or payment received.

We maintain an allowance for doubtful accounts which reflects our best estimate of potentially uncollectible trade receivables. We regularly review our trade receivable allowances by considering such factors as historical experience, credit worthiness, the age of the receivable balances and current economic conditions that may affect the ability to pay.
The allowance for doubtful accounts represents our best estimate of existing accounts receivable that will ultimately be uncollected.collectibility. The allowance is calculated by applying estimated write-off factors to various classes of outstanding receivables, including unbilled revenue. The write-off factors used to estimate uncollectible accounts are based upon consideration of both historical collections experience and management'smanagement’s best estimate of future collection success given the existing collections environment.

Following is a summary of accounts receivable at December 31 (in thousands):
2011201020132012
Accounts receivable trade$16,447
$21,365
$16,300
$14,965
Unbilled revenues8,364
7,581
9,719
9,004
Total accounts receivable - customers24,811
28,946
Allowance for doubtful accounts(143)(230)(220)(102)
Net accounts receivable$24,668
$28,716
$25,799
$23,867

Revenue Recognition

Revenue is recognized when there is persuasive evidence of an arrangement with a fixed or determinable price, delivery has occurred or services have been rendered, and collectibility is reasonably assured. Taxes collected from our customers are recorded on a net basis (excluded from Revenue).

Utility revenues are based on authorized rates approved by the state regulatory agencies and the FERC. Revenues related to the sale, transmission and distribution of energy, and delivery of service are generally recorded when service is rendered or energy is delivered to customers. To the extent that deliveries have occurred but a bill has not been issued, we accrue an estimate of the revenue since the latest billing. This estimate is calculated based upon several factors including billings through the last billing cycle in a month, and prices in effect in our jurisdictions. Each month the estimated unbilled revenue amounts are trued-up and recorded in Receivables- customers, net on the accompanying Balance Sheets.

Materials, Supplies and Fuel

Materials, supplies and fuel used for construction, operation and maintenance purposes are generally stated on a weighted-average cost basis.

Deferred Financing Costs

Deferred financing costs are amortized using the effective interest method over the term of the related debt.


34



Property, Plant and Equipment

Additions to property, plant and equipment are recorded at cost when placed in service. Included in the cost of regulated construction projects is AFUDC, which represents the approximate composite cost of borrowed funds and a return on equity used to finance a regulated utility project. The cost of regulated electric property, plant and equipment retired, or otherwise disposed of in the ordinary course of business, less salvage, is charged to accumulated depreciation. Removal costs associated with non-legal obligations are reclassified from accumulated depreciation and reflected as regulatory liabilities. Ordinary repairs and maintenance of property, except as allowed under rate regulations, are charged to operations as incurred.


32



Depreciation provisions for regulated electric property, plant and equipment are computed on a straight-line basis using an annual composite rate of 2.2%2.1% in 20112013, 2.2% in 20102012 and 2.8%2.2% in 20092011.

Derivatives and Hedging Activities

From time to time we utilize risk management contracts including forward purchases and sales to hedge the price of fuel for our combustion turbines and fixed-for-float swaps to fix the interest on any variable rate debt. Contracts that qualify as derivatives under accounting standards for derivatives, and that are not exempted such as normal purchase/normal sale, are required to be recorded in the balance sheet as either an asset or liability, measured at its fair value. Accounting standards for derivatives require that changes in the derivative instrument'sinstrument’s fair value be recognized currently in earnings unless specific hedge accounting criteria are met.

Accounting standards for derivatives allow hedge accounting for qualifying fair value and cash flow hedges. Gain or loss on a derivative instrument designated and qualifying as a fair value hedging instrument as well as the offsetting loss or gain on the hedged item attributable to the hedged risk should be recognized currently in earnings in the same accounting period. Conversely, the effective portion of the gain or loss on a derivative instrument designated and qualifying as a cash flow hedging instrument should be reported as a component of other comprehensive income and be reclassified into earnings or as a regulatory asset or regulatory liability, net of tax, in the same period or periods during which the hedged forecasted transaction affects earnings. The remaining gain or loss on the derivative instrument, if any, is recognized currently in earnings.

Fair Value Measurements

Accounting standards for fair value measurements provide a single definition of fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date and also requires disclosures and establishes a fair value hierarchy that prioritizes the inputs used to measure fair value. The fair value hierarchy ranks the quality and reliability of the information used to determine fair values giving the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements).

Financial assets and liabilities carried at fair value are classified and disclosed in one of the following three categories:

Level 1 - Unadjusted quoted prices available in active markets that are accessible at the measurement date for identical unrestricted assets or liabilities.

Level 2 - Pricing inputs include quoted prices for identical or similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and inputs that are derived principally from or corroborated by observable market data by correlation or other means.

Level 3 - Pricing inputs include significant inputs that are generally less observable from objective sources.


35



Impairment of Long-Lived Assets

We periodically evaluate whether events and circumstances have occurred which may affect the estimated useful life or the recoverability of the remaining balance of our long-lived assets. If such events or circumstances were to indicate that the carrying amount of these assets was not recoverable, we would estimate the future cash flows expected to result from the use of the assets and their eventual disposition. If the sum of the expected future cash flows (undiscounted and without interest charges) was less than the carrying amount of the long-lived assets, we would recognize an impairment loss.


33



Income Taxes

We file a federal income tax return with other members of the Parent’s consolidated group. For financial statement purposes, federal income taxes are allocated to the individual companies based on amounts calculated on a separate return basis.

We use the liability method in accounting for income taxes. Under the liability method, deferred income taxes are recognized at currently enacted income tax rates, to reflect the tax effect of temporary differences between the financial and tax basis of assets and liabilities, as well as operating loss and tax credit carryforwards. Such temporary differences are the result of provisions in the income tax law that either require or permit certain items to be reported on the income tax return in a different period than they are reported in the financial statements. We classify deferred tax assets and liabilities into current and non-current amounts based on the classification of the related assets and liabilities.

We file a federal income tax return with other affiliates. For financial statement purposes, federal income taxes are allocated to the individual companies based on amounts calculated on a separate return basis.

It is ourthe Parent’s policy to apply the flow-through method of accounting for investment tax credits. Under the flow-through method, investment tax credits are reflected in net income as a reduction to income tax expense in the year they qualify. Another acceptable accounting method and an exception to this general policy currently in our regulated businesses is to apply the deferral method whereby the credit is amortized as a reduction of income tax expense over the useful lives of the related property which gave rise to the credits.


(We recognize interest income or interest expense and penalties related to income tax matters in Income tax (expense) benefit on the Statements of Income. We account for uncertainty in income taxes recognized in the financial statements in accordance with accounting standards for income taxes. The unrecognized tax benefit is classified in Other - non-current liabilities on the accompanying Balance Sheets. See Note 26)     RECENTLY ADOPTED AND RECENTLY ISSUED ACCOUNTING STANDARDS for additional information.

Recently Adopted Accounting Standards

Other Comprehensive Income: Presentation of Comprehensive Income, ASU 2011-05 and Deferral of the Effective Date for Amendments to the Presentation of Reclassification of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update 2011-05 and ASU 2011-12

FASB issued an accounting standards update amending ASC 220 to improve the comparability, consistency and transparency of reporting of comprehensive income. It amends existing guidance by allowing only two options for presenting the components of net income and other comprehensive income: (1) in a single continuous financial statement, statement of comprehensive income or (2) in two separate but consecutive financial statements, consisting of an income statement followed by a separate statement of other comprehensive income. Also, items that are reclassified from other comprehensive income to net income must be presented on the face of the financial statements. ASU No. 2011-05 requires retrospective application, and it is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011, with early adoption permitted. In December 2011, FASB issued ASU 2011-12. ASU 2011-12 indefinitely deferred the provisions of ASU 2011-05 requiring the presentation of reclassification adjustments for items reclassified from other comprehensive income to net income be presented on the face of the financial statements.

We have elected Ultimately FASB chose not to early adoptreinstate the provisions ofreclassification adjustment requirements in ASU 2011-05 as amended bybut instead issued ASU 2011-12.2013-02 in February 2013. The adoption changed the presentation of certain financial statements and provided additional details in notes to the financial statements, butthis standard did not have any otheran impact on our financial statements. See the accompanying Comprehensive Income Statement and additional disclosures in Note 8.

Fair Value Measurements and Disclosures, ASC 820

The ASC for Fair Value Measurements and Disclosures defines fair value, establishes a framework for measuring fair value in GAAP and expands disclosure requirements related to fair value measurements. This does not expand the application of fair value accounting to any new circumstances, but applies the framework to other applicable GAAP that requires or permits fair value measurement. We apply fair value measurements to certain assets and liabilities, primarily employee benefit plan assets and other miscellaneous financial instruments.

In January 2010, the FASB issued guidance related to improving disclosures about fair value measurements. The guidance requires separate disclosures of the amounts of transfers in and out of Level 1 and Level 2 fair value measurements, disclosure of inputs and techniques used in valuation and a description of the reason for such transfers. In the reconciliation for Level 3 fair value measurements using significant unobservable inputs, information about purchases, sales, issuances and settlements are required to be presented separately. These disclosures are required for interim and annual reporting periods and were effective for us January 1, 2010, except the disclosures related to purchases, sales, issuances and settlements in the roll forward activity of Level 3 fair value measurements, which were effective January 1, 2011. The guidance requires additional disclosures, but did not impact our financial position, results of operations or cash flows. The additional disclosures are included in Note 9.

3436




Recently Issued Accounting Standards and LegislationReporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income, ASU 2013-02

Fair Value Measurement, ASU 2011-04

In February 2013, the FASB issued an accounting standards update amending ASC 820 to achieve common fair value measurement andnew disclosure requirements between GAAPfor items reclassified out of AOCI to expand the disclosure requirements in ASC 220, Comprehensive Income, for presentation of changes in AOCI. ASU 2013-02 requires disclosure of (1) changes in components of other comprehensive income, (2) for items reclassified out of AOCI and IFRS. This amendment changesinto net income in their entirety, the wording usedeffect of the reclassification on each affected net income line item and (3) cross references to describe fair value and requiresother disclosures that provide additional disclosures. We dodetail for components of other comprehensive income that are not expect this amendment, which isreclassified in their entirety to net income. Disclosures are required either on the face of the statements of income or as a separate disclosure in the notes to the financial statements. The new disclosure requirements are effective for interim and annual periods beginning after December 31, 2011,15, 2012. The adoption of this standard did not have an impact on our financial position, results of operations or cash flows.

Recently Issued Accounting Pronouncements and Legislation

Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists

In July 2013, the FASB issued an amendment to accounting for income taxes which provides guidance on financial statement presentation of an unrecognized tax benefit when an NOL carryforward, a similar tax loss, or a tax credit carryforward exists. The objective in issuing this amendment is to eliminate diversity in practice resulting from a lack of guidance on this topic in current GAAP. Under the amendment, an entity must present an unrecognized tax benefit, or a portion of an unrecognized tax benefit, in the financial statements as a reduction to a deferred tax asset for an NOL carryforward, a similar tax loss, or a tax credit carryforward except under certain conditions. The amendment is effective for fiscal years beginning after December 15, 2013, and interim periods within those years and should be applied to all unrecognized tax benefits that exist as of the effective date. The adoption of this standard is not expected to have an impact on our financial position, results of operations or cash flows.

Final Tangible Personal Property Regulations, IRS Treasury Decision 9636

In September 2013, the U.S. Treasury issued final regulations addressing the tax consequences associated with amounts paid to acquire, produce, or improve tangible property. The regulations have the effect of a change in law and as a result the impact should be taken into account in the period of adoption. In general, such regulations apply to tax years beginning on or after January 1, 2014, with early adoption permitted. We expect that implementation of most, if not all, of the provisions of the final regulations to occur in 2014. Procedural guidance is expected from IRS in early 2014 to facilitate implementation. Analysis performed to date indicates no material impact to our financial statements.



37



(32)    PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment at December 31 consisted of the following (in(dollars in thousands):

 December 31, 2011 December 31, 2010  2013 2012 
 Weighted Weighted  Weighted Weighted 
 Average AverageLives (in years) Average AverageLives (in years)
December 31, 2011Useful Life (in years)December 31, 2010Useful Life (in years)MinimumMaximum2013Useful Life (in years)2012Useful Life (in years)MinimumMaximum
Electric plant:         
Production$504,088
51$475,762
5045
65
$512,444
51$510,674
514565
Transmission115,063
47116,056
4340
60
115,149
46115,092
464060
Distribution289,833
39271,470
3716
45
315,971
39304,113
381645
Plant acquisition adjustment(a)4,870
324,870
3232
32
4,870
324,870
32
General72,045
2158,777
228
45
70,228
2271,802
22845
Total plant-in-service1,018,662
 1,006,551
 
Construction work in progress9,873
 35,705
  77,222
 18,217
 
Total electric plant995,772
 962,640
  1,095,884
 1,024,768
 
Less accumulated depreciation and amortization(313,581) (304,800)  (334,174) (322,830) 
Electric plant net of accumulated depreciation and amortization$682,191
 $657,840
  $761,710
 $701,938
 
__________________
(a)The plant acquisition adjustment is included in rate base and is being recovered with 17 years remaining.


(43)    JOINTLY OWNED FACILITIES

We use the proportionate consolidation method to account for our percentage interest in the assets, liabilities and expenses of the following facilities:

We own a 20% interest in the Wyodak Plant (the "Plant"“Plant”), a coal-fired electric generating station located in Campbell County, Wyoming. PacifiCorp owns the remaining ownership percentage and is the operator of the Plant. We receive our proportionate share of the Plant'sPlant’s capacity and are committed to pay our share of its additions, replacements and operating and maintenance expenses.

We own a 35% interest in, and are the operator of, the Converter Station Site and South Rapid City Interconnection (the transmission tie), an AC-DC-AC transmission tie. Basin Electric owns the remaining ownership percentage. The transmission tie provides an interconnection between the Western and Eastern transmission grids, which provides us with access to both the WECC region and the MAPP region. The total transfer capacity of the transmission tie is 400 MW - 200 MW West to East and 200 MW from East to West. We are committed to pay our proportionate share of the additions, replacements and operating and maintenance expenses.

35




We own a 52% interest in the Wygen III power plant. MDU and the City of Gillette each owns an undivided ownership interest in the Wygen III generation facility and are obligated to make payments for costs associated with administrative services and a proportionate share of the costs of operating the plant for the life of the facility. We retain responsibility for plant operations.

The investments in our jointly owned plants and accumulated depreciation are included in the corresponding captions in the accompanying Balance Sheets. Our share of direct expenses of the Plant is included in the corresponding categories of operating expenses in the accompanying Statements of Income. Each of the respective owners is responsible for providing its own financing.


38



As of December 31, 20112013, our interests in jointly-owned generating facilities and transmission systems included on our Balance Sheets were as follows (dollars in(in thousands):
Interest in jointly-owned facilitiesPlant in ServiceConstruction Work in ProgressAccumulated DepreciationPlant in ServiceConstruction Work in ProgressAccumulated Depreciation
Wyodak Plant$109,007
$718
$46,104
$109,800
$192
$50,595
Transmission Tie$19,648
$
$4,061
$19,648
$
$4,741
Wygen III
$129,791
$249
$5,328
$131,468
$713
$10,593


(54)    LONG-TERM DEBT

Long-term debt outstanding at December 31 was as follows (in thousands):
 Maturity DateFixed Interest RateDecember 31, 2011December 31, 2010
First Mortgage Bonds due 2032August 15, 20327.23%75,000
75,000
First Mortgage Bonds due 2039November 1, 20396.125%180,000
180,000
Unamortized discount, First Mortgage Bonds due 2039  (115)(119)
Pollution control revenue bonds due 2014October 1, 20144.80%6,450
6,450
Pollution control revenue bonds due 2024October 1, 20245.35%12,200
12,200
Series 94A DebtJune 1, 20243.00%2,855
2,855
OtherMay 12, 201213.66%37
117
     
Total long-term debt  276,427
276,503
Less current maturities  (37)(81)
Net long-term debt  $276,390
$276,422
 Maturity DateInterest Rate20132012
First Mortgage Bonds due 2032August 15, 20327.23%$75,000
$75,000
First Mortgage Bonds due 2039November 1, 20396.125%180,000
180,000
Unamortized discount, First Mortgage Bonds due 2039  (107)(111)
Pollution control revenue bonds due 2024October 1, 20245.35%12,200
12,200
Series 94A Debt(a) 
June 1, 20240.75%2,855
2,855
Long-term debt  $269,948
$269,944
___________________
(a)
Variable interest rate at December 31, 2013.

Deferred financeNet deferred financing costs of approximately $3.12.8 million and $2.9 million were capitalizedrecorded on the accompanying Balance Sheets in Other, non-current assets at December 31, 2013 and 2012, respectively, and are being amortized over the term of the debt. Amortization of deferred financing costs isof approximately $0.1 million, $0.2 million and $0.5 million for the years ended December 31, 2013, 2012 and 2011, respectively, are included in Interest expense.expense on the accompanying Statements of Income.

Substantially all of our property is subject to the lien of the indenture securing our first mortgage bonds. First mortgage bonds may be issued in amounts limited by property, earnings and other provisions of the mortgage indentures. We were in compliance with our debt covenants at December 31, 20112013.

Series AC Bonds

In February 2010, the Series 8.06% AC bonds matured. These were paid in full for $30.0 million of principal plus accrued interest of $1.2 million.


36



Series Y Bonds

In March 2010, we completed redemption of our Series Y 9.49% bonds in full. The bonds were originally due in 2018. A total of $2.7 million was paid on March 31, 2010, which includes the principal balance of $2.5 million plus accrued interest and an early redemption premium of 2.618%. The early redemption premium was recorded in unamortized loss on reacquired debt which is included in Regulatory assets on the accompanying Balance Sheet and is being amortized over the remaining term of the original bonds.

Series Z Bonds

In June 2010, we completed redemption of our Series Z 9.35% bonds in full. The bonds were originally due in 2021. A total of $21.8 million was paid on June 1, 2010, which included the principal balance of $20.0 million plus accrued interest and an early redemption premium of 4.675%. The early redemption premium was recorded in unamortized loss on reacquired debt which is included in Regulatory assets on the accompanying Balance Sheet and is being amortized over the remaining term of the original bonds.

Long-term Debt Maturities

Scheduled maturities of our outstanding long-term debt (excluding unamortized discounts) are as follows (in thousands):
2012$37
2013$
2014$6,450
$
2015$
$
2016$
$
2017$
2018$
Thereafter$270,055
$270,055


39




(65)    FAIR VALUE OF FINANCIAL INSTRUMENTS

The estimated fair values of our financial instruments at December 31 were as follows (in thousands):

December 31, 2011December 31, 201020132012
Carrying ValueFair ValueCarrying ValueFair ValueCarrying ValueFair ValueCarrying ValueFair Value
Cash and cash equivalents(a)$2,812
$2,812
$2,045
$2,045
$2,259
$2,259
$3,805
$3,805
Long-term debt, including current maturities(b)$276,427
$362,055
$276,503
$301,964
$269,948
$317,531
$269,944
$359,567
_______________
(a)Fair value approximates carrying value due to either short-term length of maturity or variable interest rates that approximate prevailing market rates and therefore is classified in Level 1 in the fair value hierarchy.
(b)Long-term debt is valued using the market approach based on observable inputs of quoted market prices and yields available for debt instruments either directly or indirectly for similar maturities and debt ratings in active markets and therefore is classified in Level 2 in the fair value hierarchy. The carrying amount of our variable rate debt approximates fair value due to the variable interest rates with short reset periods. For additional information on our long-term debt, see Note 4 to the Financial Statements.

The following methods and assumptions were used to estimate the fair value of each class of our financial instruments.

Cash and Cash Equivalents

The carrying amount approximates fair value due to the short maturity of these instruments.

Long-Term Debt

The fair valueIncluded in cash and cash equivalents is cash and overnight repurchase agreement accounts. As part of our long-term debtcash management process, excess operating cash is estimated based on quotedinvested in overnight repurchase agreements with our bank. Repurchase agreements are not deposits and are not insured by the U.S. Government, the FDIC or any other government agency and involve investment risk including possible loss of principal. We believe however, that the market rates for debtrisk arising from holding these financial instruments having similar maturities and similar debt ratings. Our outstanding first mortgage bonds are either currently not callable or are subject to make-whole provisions which would eliminate any economic benefits for us to call and refinance the first mortgage bonds.is minimal.



37



(76)    INCOME TAXES

Income tax expense (benefit) from continuing operations for the years ended wasDecember 31 were as follows (in thousands):

December 31, 2011December 31, 2010December 31, 2009201320122011
Current$14,921
$(14,885)$(3,296)$(163)$(10,319)$14,921
Deferred(2,931)25,626
11,600
13,582
24,628
(2,931)
Total income tax expense$11,990
$10,741
$8,304
$13,419
$14,309
$11,990


40



The temporary differences which gave rise to the net deferred tax liability, for the years ended December 31 were as follows (in thousands):
 December 31, 2011December 31, 2010
Deferred tax assets, current:  
Asset valuation reserve$491
$217
Employee benefits1,086
803
Rate refund360
428
Total deferred tax assets, current1,937
1,448
   
Deferred tax liabilities, current:  
Prepaid expenses(256)(251)
Deferred costs(2,529)(2,056)
Total deferred tax liabilities, current(2,785)(2,307)
   
Net deferred tax assets (liabilities), current$(848)$(859)
   
Deferred tax assets, non-current:  
Plant related differences$
$909
Regulatory liabilities14,644
10,074
Employee benefits3,922
3,547
Net operating loss28,072
9,147
Items of other comprehensive income263
225
Research and development credit780
1,613
Other1,155

Total deferred tax assets, non-current48,836
25,515
   
Deferred tax liabilities, non-current:  
Accelerated depreciation and other plant related differences(148,254)(132,338)
AFUDC(5,559)(6,168)
Regulatory assets(5,019)(5,557)
Employee benefits(2,356)(2,983)
Other(968)(788)
Total deferred tax liabilities, non-current(162,156)(147,834)
   
Net deferred tax assets (liabilities), non-current$(113,320)$(122,319)
   
Net deferred tax assets (liabilities)$(114,168)$(123,178)



38



The following table reconciles the change in the net deferred income tax assets (liabilities) from December 31, 2010 to December 31, 2011 and from December 31, 2009 to December 31, 2010 to deferred income tax expense (benefit) (in thousands):
 20112010
Change in deferred income tax assets (liabilities)$(9,010)$25,118
Deferred taxes related to regulatory assets and liabilities4,968
9,272
Deferred taxes associated with other comprehensive income15
(2,141)
Deferred taxes related to property basis differences156
(4,713)
Deferred taxes related to AFUDC937
(1,910)
Other3

Deferred income tax expense (benefit) for the period$(2,931)$25,626
 20132012
Deferred tax assets:  
Employee benefits$4,567
$5,094
Net operating loss4,197
10,441
Regulatory liabilities6,398
13,433
Other2,193
2,381
Total deferred tax assets17,355
31,349
   
Deferred tax liabilities:  
Accelerated depreciation and other plant related differences(161,990)(154,989)
AFUDC(8,190)(5,499)
Regulatory assets(3,540)(5,767)
Employee benefits(3,467)(3,610)
Deferred costs(4,240)(2,608)
Other(1,067)(1,163)
Total deferred tax liabilities(182,494)(173,636)
   
Net deferred tax assets (liabilities)$(165,139)$(142,287)

The effective tax rate differs from the federal statutory rate for the years ended December 31, as follows:

December 31, 2011December 31, 2010December 31, 2009201320122011
Federal statutory rate35.0 %35.0 %35.0 %35.0 %35.0 %35.0 %
Amortization of excess deferred and investment tax credits(0.4)(0.6)(0.9)(0.3)(0.3)(0.4)
Equity AFUDC(0.6)(2.0)(6.2)
(0.1)(0.6)
Flow through adjustments *(3.4)(7.4)
(2.5)(3.5)(3.4)
Prior year deferred adjustment **

3.6

Tax credits(0.8)

Other0.1
0.6
(1.5)(0.6)(0.1)0.1
30.7 %25.6 %26.4 %30.8 %34.6 %30.7 %
_________________________
*The flow-through adjustments relate primarily to an accounting method change for tax purposes that was filed with the 2008 tax return and for which consent was received from the IRS in September 2009. The effect of the change allows us to take a current tax deduction for repair costs that were previously capitalized for tax purposes. These costs will continue to be capitalized for book purposes. We recorded a deferred income tax liability in recognition of the temporary difference created between book and tax treatment and we flowed the tax benefit through to our customers in the form of lower rates as a result of a rate case settlement that occurred during 2010. A regulatory asset was established to reflect the recovery of future increases in taxes payable from customers as the temporary differences reverse. Due toAs a result of this regulatory treatment, we recorded an incomecontinue to record a tax benefit thatconsistent with the flow through method.
**The adjustment was a non-recurring unfavorable true-up attributable to property related deferred income taxes. The removal of the 2008 through 2010 tax years. For years prior to 2008, we did not recordimpact of such an adjustment is more appropriately reflective of the effective rate on a regulatory asset for the repairs deduction as the tax benefit was not flowed through to customers.recurring basis.
The accounting standards for uncertain tax positions clarifies the accounting for uncertainty in income taxes recognized in an enterprise's financial statements in accordance with accounting standards for income taxes. The accounting standards prescribe a recognition threshold and measurement attributes for the financial statement recognition and measurement of a tax position taken or expected to be taken. The impact of this implementation had no effect on our financial statements.

The following table reconciles the total amounts of unrecognized tax benefits, atwithout interest, included in Other deferred credits and other liabilities on the beginning and end of the periodaccompanying Balance Sheet (in thousands):
2011201020132012
Unrecognized tax benefits at January 1$3,094
$3,877
$2,078
$3,595
Additions for prior year tax positions795
130
Reductions for prior year tax positions(294)(913)(155)(1,586)
 
Additions for current year tax positions520
69
Unrecognized tax benefits at December 31$3,595
$3,094
$2,443
$2,078


41



The reductionreductions for prior year tax positions relate to the reversal through otherwise allowed tax depreciation. The total amount of unrecognized tax benefits that, if recognized, would impact the effective tax rate is approximately $0.40.5 million.

It is our continuing practice to recognize interest and/or penalties related to income tax matters in income tax expense. During the yearyears ended December 31, 20112013 and 2010,2012, the interest expense recognized related to income tax matters was not material to our financial results.


39



The Company filesWe file income tax returns in the United States federal jurisdictionjurisdictions as a member of the BHC consolidated group. The Company doesWe do not anticipate that total unrecognized tax benefits will significantly change due to the settlement of any audits or the expiration of statutes of limitations prior to December 31, 2012.2014.

At December 31, 2011,2013, we have federal NOL carry forward of $80.214 million, of which $54.6 million will expire in 2030 and $25.6 million will expireexpiring in 2031. Ultimate usage of this NOL depends upon our ability to generate future taxable income.income, which is expected to occur within the prescribed carryforward period.


(87)    COMPREHENSIVE INCOME

The following tables display each componentcomponents of the reclassification adjustments for the period, net of tax, included in Other Comprehensive Income (Loss), after-tax, and the related tax effects for the years endedwere as follows (in thousands):
 December 31, 2011
 Pre-tax Amount
Tax (Expense)
Benefit
Net-of-tax Amount
Minimum pension liability adjustment - net gain (loss)$(108)$38
$(70)
Reclassification adjustments of cash flow hedges settled and included in net income65
(23)42
Net change in fair value of derivatives designated as cash flow hedges


Other comprehensive income (loss)$(43)$15
$(28)
 Derivatives Designated as Cash Flow HedgesAmounts Reclassified from AOCI
  20132012
Gains and Losses on cash flow hedges   
Interest rate swapsInterest expense$64
$64
Income taxIncome tax benefit (expense)(23)(23)
Total reclassification adjustments related to cash flow hedges, net of tax $41
$41
    
Amortization of defined benefit plans:   
Actuarial gain (loss)Operations and maintenance$66
$
Income taxIncome tax benefit (expense)(23)
Total reclassification adjustments related to defined benefit plans, net of tax $43
$

 December 31, 2010
 Pre-tax Amount
Tax (Expense)
Benefit
Net-of-tax Amount
Minimum pension liability adjustment - net gain (loss)$(145)$51
$(94)
Reclassification adjustments of cash flow hedges settled and included in net income64
(23)41
Net change in fair value of derivatives designated as cash flow hedges6
(2)4
Other comprehensive income (loss)$(75)$26
$(49)

 December 31, 2009
 Pre-tax Amount
Tax (Expense)
Benefit
Net-of-tax Amount
Minimum pension liability adjustment - net gain (loss)$150
$(52)$98
Reclassification adjustments of cash flow hedges settled and included in net income64
(24)40
Net change in fair value of derivatives designated as cash flow hedges(5)3
(2)
Other comprehensive income (loss)$209
$(73)$136
_____________
During 2002, we entered intoDerivatives designated as cash flow hedges relate to a treasury lock entered into in August 2002 to hedge a portion$50 million of a first mortgage bond.our First Mortgage Bonds due on August 15, 2032. The treasury lock cash settled onAugust 8, 2002, the bond pricing date, and resulted in a $1.8$1.8 million loss. ThisThe treasury lock wasis treated as a cash flow hedge and accordingly the resulting loss is carried in Accumulated other comprehensive loss on the accompanying Balance SheetOther Comprehensive Loss and is being amortized over the life of the related bonds as additional interest expense.bonds.


42



Balances by classification included within Accumulated other comprehensive loss on the accompanying Balance Sheets were as follows (in thousands):
 December 31, 2011December 31, 2010
Derivatives designated as cash flow hedges$(801)$(843)
Employee benefit plans(489)(419)
Total accumulated other comprehensive loss$(1,290)$(1,262)
 Derivatives Designated as Cash Flow Hedges
 Interest Rate SwapsEmployee Benefit PlansTotal
    
As of December 31, 2012$(760)$(660)$(1,420)
Other comprehensive income (loss)41
182
223
As of December 31, 2013$(719)$(478)$(1,197)
    
 Derivatives Designated as Cash Flow Hedges
 Interest Rate SwapsEmployee Benefit PlansTotal
    
As of December 31, 2011$(801)$(489)$(1,290)
Other comprehensive income (loss)41
(171)(130)
As of December 31, 2012$(760)$(660)$(1,420)

40





(98)    EMPLOYEE BENEFIT PLANS

Funded Status of Benefit Plans

The funded status of the postretirement benefit plan is required to be recognized in the statement of financial position. The funded status for the pension plan is measured as the difference between the projected benefit obligation and the fair value of plan assets. The funded status for all other benefit plans is measured as the difference between the accumulated benefit obligation and the fair value of plan assets. A liability is recorded for an amount by which the benefit obligation exceeds the fair value of plan assets or an asset is recorded for any amount by which the fair value of plan assets exceeds the benefit obligation. The measurement date of the plans is December 31, our year-end balance sheet date. As of December 31, 2013, the unfunded status of our Defined Benefit Pension Plan was $3.8 million, the unfunded status of our Supplemental Non-qualified Defined Benefit Plans was $3.1 million and the unfunded status of our Non-pension Defined Benefit Postretirement Healthcare Plans was $5.9 million.

We apply accounting standards for regulated operations, and accordingly, the unrecognized net periodic benefit cost that would have been reclassified to Accumulated other comprehensive income (loss) was alternatively recorded as a regulatory asset or regulatory liability, net of tax.

Defined Benefit Pension Plan

We have a noncontributory defined benefit pension plan ("(“Pension Plan"Plan”) covering employees who meet certain eligibility requirements. The benefits are based on years of service and compensation levels during the highest five consecutive years of the last ten years of service. Our funding policy is in accordance with the federal government'sgovernment’s funding requirements. The Pension Plan'sPlan’s assets are held in trust and consist primarily of equity and fixed income investments. We use a December 31 measurement date for the Pension Plan.

As of January 1, 2012, theThe Pension Plan has been frozen to new employees and certain employees who did not meet age and service based criteria at the time the Plans werePlan was frozen. ThePlan benefits for the plans are based on years of service and calculations of average earnings during a specific time period prior to retirement. In July 2009,

As of December 31, 2012, certain Plan investments were transferred to a Master Trust that was established for the investment of assets of the Plan and other Employer-sponsored retirement plans. Each participating retirement plan has an undivided interest in the Master Trust.


43



On October 29, 2012, the Board of Directors approved a partial freezenew Investment Policy. The objective of the Investment Policy is to manage assets in such a way that will allow the eventual settlement of our obligations to the Plans’ beneficiaries. To meet this objective, our pension plan assets are managed by an outside adviser using a portfolio strategy that will provide liquidity to meet the Plans’ benefit payment obligations and an asset allocation that will comprise a mix of return-seeking and liability-hedging assets. Our Pension Plan for all participantsfunding policy is in accordance with the exception of bargaining unit participants. The freeze eliminated new non-bargaining unit employees from participation in the Pension Plan and froze the benefits of current non-bargaining unit participants except certain eligible employees who met age and service based criteria. In September of 2010, our bargaining unit employees voted to freeze participation in the Pension Plan and to freeze the benefits of current bargaining unit participants except for certain eligible employees who met age and service based criteria. An additional age and points-based employer contribution under the Company's 401(k) retirement savings plan was established.

federal government’s funding requirements. The Pension Plan's expected long-term ratePlan’s assets are held in trust and consist primarily of return on assets assumption is based upon the weighted average expected long-term rate of returns for each individual asset class. The asset class weighting is determined using the target allocation for each asset class in the Pension Plan portfolio.equity, fixed income and hedged investments. The expected long-term rate of return for each asset class is determined primarily from adjusted long-term historical returns for the asset class. It is anticipated that long-term future returns will not achieve historical results. The expected long-term rate of return for equity investments was 8.75%7.25% and 9.25%7.25% for the 20112013 and 20102012 plan years, respectively.

Pension Plan Assets

PercentageThe percentages of total plan asset fair value by investment category of our Pension Plan assets at December 31:31 were as follows:
 20112010
Equity69%68%
Fixed income28%29%
Cash3%3%
Total100%100%

The Investment Policy for the Pension Plans is to seek to achieve the following long-term objectives: 1) a rate of return in excess of the annualized inflation rate based on a five-year moving average; 2) a rate of return that meets or exceeds the assumed actuarial rate of return as stated in the Plan's actuarial report; 3) a rate of return on investments, net of expenses, that is equal to or exceeds various benchmark rates on a moving three-year average, and 4) maintenance of sufficient income and liquidity to pay monthly retirement benefits. The policy strategy seeks to prudently invest in a diversified portfolio of predominately equity and fixed income assets.

41




The policy contains certain prohibitions on transactions in separately managed portfolios in which the Pension Plan may invest, including prohibitions on short sales.
 20132012
Equity securities26%51%
Real estate4%%
Fixed income funds58%48%
Cash and cash equivalents1%1%
Hedge funds11%%
Total100%100%

Supplemental Non-qualified Defined Benefit Retirement Plans

We have various supplemental retirement plans ("(“Supplemental Plans"Plans”) for key executives. The Supplemental Plans are non-qualified defined benefit plans. We use a December 31 measurement date for theThe Supplemental Plans. Effective January 1, 2010, we eliminated a non-qualified pension plan in which some of our officers participated due to the partial freeze of our qualified pension plan. We also amended the NQDC, which was adopted in 1999. The NQDC is a non-qualified deferred compensation plan that provides executives with an opportunity to elect to defer compensation and receive benefits without reference to the limitations on contributions in the Plan or those imposed by the IRS. The amended NQDC provides for non-elective non-qualified restoration benefits to certain officers who are not eligible to continue accruing benefits under the Defined Benefit Pension Plans and associated non-qualified pension restoration plans. All contributions to the non-qualified plans are subject to a gradedvarious vesting schedule of 20% per year over five years with vesting credit beginning with service in the Plan on and after January 1, 2010.schedules.

Supplemental Plan Assets

TheWe do not fund our Supplemental Plans have no assets.Plans. We fund on a cash basis as benefits are paid.

Non-pension Defined Benefit Postretirement Healthcare Plan

Employees who are participants in our Non-Pension Postretirement Healthcare Plan ("(“Healthcare Plan"Plan”) and who retire on or after attaining minimum age 55 after completing at least fiveand years of service requirements are entitled to postretirement healthcare benefits. These benefits are subject to premiums, deductibles, co-payment provisions and other limitations. We may amend or change the Healthcare Plan periodically. We are not pre-funding our retiree medical plan. We use a December 31measurement date for the Healthcare Plan. The Board of Directors approved an amendment to the Healthcare Plan which changed the structure of the Healthcare Plan for non-union employees to a RMSA structure which was effective January 1, 2010. In September 2010, the bargaining unit employees voted to change the structure of their benefits to an RMSA. This change was effective January 1, 2011. It has beenhave determined that the Healthcare Plan'sPlan’s post-65 retiree prescription drug plans are actuarially equivalent and qualify for the Medicare Part D subsidy.

Plan Assets

TheWe do not fund our Healthcare Plan has no assets.Plans. We fund on a cash basis as benefits are paid.


44



Plan Contributions and Estimated Cash Flows

Contributions made to the Pension Plans are cash contributions made directly to the Pension Plan Trust accounts. Healthcare and Supplemental Non-qualified Defined Benefit Retirement Plans and the Non-pension Defined Benefit Postretirement Plan contributions are expected to be made in the form of benefit payments. Contributions to each offor the plansyears ended December 31 were as follows (in thousands):
2011201020132012
Defined Benefit Plans  
Defined Benefit Pension Plan$
$8,798
$2,299
$6,835
Non-pension Defined Benefit Postretirement Healthcare Plan$428
$657
$578
$835
Supplemental Non-qualified Defined Benefit Plan$130
$108
$217
$256
  
Defined Contribution Plans  
Company Retirement Contribution$371
$171
$421
$404
Matching Contributions$1,296
$1,029
$1,301
$1,328


42



ContributionsWe do not intend to make a contribution to our employee defined benefit plans to be madepension plan in 20122014 are as follows (in thousands):.
 2012
Defined Benefit Plans 
Defined Benefit Pension Plan$
Non-pension Defined Benefit Postretirement Healthcare Plan$658
Supplemental Non-qualified Defined Benefit Plan$154

Fair Value Measurements

As required by accounting standards for fair value measurements, assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Our assessment of the significance of a particular input to the fair value measurement requires judgment, and may affect their placement within the fair value hierarchy levels. The following tables set forth, by level within the fair value hierarchy, the assets that were accounted for at fair value on a recurring basis as of December 31 (in thousands):
Defined Benefit Pension PlanDecember 31, 2011
 Level 1Level 2Level 3Total Fair Value
Money market fund$40
$
$
$40
Registered investment companies - equity12,743


12,743
Registered investment companies - fixed income12,603


12,603
Common collective trust
16,143

16,143
Insurance contracts
1,288

1,288
Structured products
2,200

2,200
Total investments measured at fair value$25,386
$19,631
$
$45,017
Defined Benefit Pension Plan2013
 Level 1Level 2Level 3Total Fair Value
AXA Equitable General Fixed Income$
$213
$
$213
Common Collective Trust - Cash and Cash Equivalents
252

252
Common collective trust - equity
14,833

14,833
Common collective trust - fixed income
32,742

32,742
Common collective trust - real estate
682
1,718
2,400
Hedge funds

5,965
5,965
Total investments measured at fair value$
$48,722
$7,683
$56,405

Defined Benefit Pension PlanDecember 31, 2010
 Level 1Level 2Level 3Total Fair Value
Registered investment companies - equity$15,090
$
$
$15,090
Registered investment companies - fixed income12,952


12,952
Common collective trust
19,104

19,104
Insurance contracts
1,082

1,082
Total investments measured at fair value$28,042
$20,186
$
$48,228
Defined Benefit Pension Plan2012
 Level 1Level 2Level 3Total Fair Value
Cash and cash equivalents$535
$
$
$535
Common collective trust - equity
27,267

27,267
Common collective trust - fixed income
21,127

21,127
Structured products
4,536

4,536
Total investments measured at fair value$535
$52,930
$
$53,465


45



Registered Investment Companies:Cash and Cash Equivalents: InvestmentsThis category is comprised of theAXA Equitable General Fixed Income Fundwand Common Collective Trusts - cash and cash equivalents. The AXA Equitable General Fixed Income Fund is a fund of diversified portfolios, primarily composed of fixed income instruments. Assets are valued at the closing price reportedinvested in long-term holdings, such as commercial, agricultural and residential mortgages, publicly traded and privately place bonds and real estate as well as short-term bonds. Fair values of mortgage loans are measured by discounting future contractual cash flows to be received on the active market onmortgage loans using interest rates at which loans with similar characteristics. The discount rate is derived from taking the individualappropriate U.S. Treasury rate with a like term. The fair value of public fixed maturity securities are traded.generally based on prices obtained from independent valuation service provides with reasonableness prices compared with directly observable market trades. The fair value of privately placed securities are determined using a discounted cash flow model. These models use observable inputs with a discount rate based upon the average of spread surveys collected from private market intermediaries and industry sector of the issuer.

Common Collective Trust: The Pension Plan owns units of the Common Collective Trust funds that they are utilizing in their portfolio. The value of each unit of any fund as of any valuation date shall be determined by calculating the total value of such fund'sfund’s assets as of the close of business on such valuation date, deducting its total liabilities as of such time and date, and then dividing the so-determined net asset value of such fund by the total number of units of such fund outstanding on the date of valuation.

Insurance Contract: Common Collective Trust-Real Estate FundThese: This fund is valued based on various factors of the underlying real estate properties, including market rent, market rent growth, occupancy levels, etc. As part of the trustee’s valuation process, properties are externally appraised generally on an annual basis. The appraisals are conducted by reputable independent appraisal firms and signed by appraisers that are members of the Appraisal Institute, with professional designation of Member, Appraisal Institute. All external appraisals are performed in accordance with the Uniform Standards of Professional Appraisal Practices. We receive monthly statements from the trustee, along with the annual schedule of investments, and rely on these reports for pricing the units of the fund. Certain of the funds’ assets contain participant withdrawal policy and, therefore, are valuedcategorized as Level 3. The funds without participant withdrawal limitations are categorized as Level 2.

Hedge Funds: Hedge funds represent investments in other investment funds that seek a return utilizing a number of diverse investment strategies. The strategies, when combined aim to reduce volatility and risk while attempting to deliver positive returns under all market conditions. Amounts are reported on a cash basisone-month lag. The fair value of hedge funds is determined using net asset value per share based on any given valuation date.the fair value of the hedge fund’s underlying investments. Generally, shares may be redeemed at the end of each quarter, after a lockup period of one-year, with a 65 day notice and is limited to a percentage of total net asset value of the fund. The net asset values are based on the fair value of each fund’s underlying investments. There are no unfunded commitments related to these hedge funds.
Structured Products: Investments are linkedcreated through the process of financial engineering (that is, by derivatives to observable financial indexescombining underlying securities like equity, bonds, or indices with derivatives). The value of derivative securities, such as options, forwards and valued through presentswaps is determined by (respectively, derives from) the prices of the underlying securities.

The following table sets forth a summary of changes in the fair value models.of the Defined Benefit Pension Plans’ Level 3 assets for the period ended December 31 (in thousands):
 2013
Balance, beginning of period$
Transfers1,550
Purchase5,834
Unrealized gain (loss)317
Realized gain (loss)(3)
Settlements(15)
Balance, end of period$7,683


46



The following table presents the quantitative information about Level 3 fair value measurements (dollars in thousands):
 Fair Value atValuationLevel 3Range (Weighted)
 December 31, 2013TechniqueInputAverage
Assets:    
Common Collective Trust - Real Estate (a)
$1,718
Market ApproachRedemption RestrictionN/A
Hedge Funds (b)
$5,965
Market ApproachRedemption RestrictionN/A
_____________
(a)The underlying net asset value in the Common Collective Trust - Real Estate fund is determined by appraisal of the properties held in the Trust. As part of the Trustee's valuation process, properties are externally appraised generally on an annual basis. The appraisals are conducted by reputable independent appraisal firms and signed by appraisers that are members of the Appraisal Institute, with the professional designation of Member, Appraisal Institute. All external appraisals are performed in accordance with the Uniform Standards of Professional Appraisal Practices. We receive monthly statements from the Trustee along with the annual schedule of investments and rely on these reports for pricing the units of the fund. The fund does contain a participant withdrawal policy.
(b)The fair value of Level 3 is determined based on pricing provided or reviewed by third-party administrator to our investment managers. While the input amounts used by the pricing vendor in determining fair value are not provided, and therefore, unavailable for our review, the asset results are reviewed and monitored to ensure the fair values are reasonable and in line with market experience in similar asset classes. Additionally, the audited financial statements of the funds will be reviewed at the time they are issued.

Plan Reconciliations

The following tables provide a reconciliation of the Employee Benefit Plan'sPlan’s obligations and fair value of assets, components of the net periodic expense and elements of regulatory assets and liabilities and AOCI (in thousands):

Benefit Obligations
 Defined Benefit Pension PlanSupplemental Non-qualified Defined Benefit Retirement PlansNon-pension Defined Benefit Postretirement Healthcare Plan
 201320122013201220132012
Change in benefit obligation:      
Projected benefit obligation at beginning of year$69,820
$65,557
$3,427
$2,292
$6,766
$8,207
Service cost852
765


216
214
Interest cost2,969
2,969
133
104
239
343
Actuarial loss (gain)(7,818)4,510
(212)1,287
(459)(1,748)
Amendments (a)




(342)
Benefits paid(4,850)(2,850)(217)(256)(1,045)(835)
Asset transfer (to) from affiliate(750)(1,131)

(75)26
Plan curtailment reduction





Medicare Part D adjustment



82
71
Plan participants’ contributions



468
488
       
Projected benefit obligation at end of year$60,223
$69,820
$3,131
$3,427
$5,850
$6,766
_______________
(a)Reflects Board of Directors approval of increase to Company’s contribution to RMSA account.


4347



��Defined Benefit Pension PlansSupplemental Non-qualified Defined Benefit Retirement PlansNon-pension Defined Benefit Postretirement Plans
 201120102011201020112010
Change in benefit obligation:      
Projected benefit obligation at beginning of year$57,753
$55,615
$2,152
$1,690
$7,517
$9,432
Service cost798
1,215


210
340
Interest cost3,092
3,280
114
100
365
547
Actuarial loss (gain)852
4,129
(30)54
(308)(88)
Amendments
260



(2,270)
Change in participant assumptions



171

Discount rate change6,668

186

433

Benefits paid(2,899)(2,472)(130)(109)(707)(658)
Asset transfer (to) from affiliate(707)(3,300)
417
(40)(328)
Plan curtailment reduction
(974)



Medicare Part D adjustment



67
88
Plan participants' contributions



499
454
Net increase (decrease)7,804
2,138
140
462
690
(1,915)
Projected benefit obligation at end of year$65,557
$57,753
$2,292
$2,152
$8,207
$7,517

A reconciliation of the fair value of Plan assets (as of the December 31 measurement date) is as follows (in thousands):

Defined Benefit Pension PlansSupplemental Non-qualified Defined Benefit Retirement PlansNon-pension Defined Benefit Postretirement PlansDefined Benefit Pension PlanSupplemental Non-qualified Defined Benefit Retirement PlansNon-pension Defined Benefit Postretirement Healthcare Plan
201120102011201020112010201320122013201220132012
Beginning market value of plan assets$48,228
$39,040
$
$
$
$
$53,465
$45,017
$
$
$
$
Investment income66
5,361




6,070
5,240




Benefits paid(2,899)(2,472)



(4,850)(2,850)



Employer contributions
8,798




2,299
6,835




Asset transfer to affiliate(378)(2,499)



(579)(777)



Ending market value of plan assets$45,017
$48,228
$
$
$
$
$56,405
$53,465
$
$
$
$

Amounts recognized in the Balance Sheets at December 31 consist of (in thousands):
 Defined Benefit Pension PlanSupplemental Non-qualified Defined Benefit Retirement PlansNon-pension Defined Benefit Postretirement Plan
 201320122013201220132012
Regulatory asset (liability)$13,735
$26,683
$
$
$2,781
$(2,174)
Current (liability)$
$
$(216)$(216)$(491)$(438)
Non-current (liability)$(3,818)$(16,356)$(2,915)$(3,211)$(5,372)$(6,321)

Accumulated Benefit Obligation (dollars in thousands)
 Defined Benefit Pension PlansSupplemental Non-qualified Defined Benefit Retirement PlansNon-pension Defined Benefit Postretirement Plans
 201120102011201020112010
Regulatory asset (liability)$27,284
$18,049
$
$
$(590)$(1,050)
Current (liability)$
$
$(154)$(141)$(658)$(428)
Non-current (liability)$(20,540)$(9,525)$(3,060)$(2,011)$(7,497)$(7,096)


44



Accumulated Benefit Obligation
 Defined Benefit Pension PlansSupplemental Non-qualified Defined Benefit Retirement PlansNon-pension Defined Benefit Postretirement Plans
 201120102011201020112010
Accumulated benefit obligation$59,823
$52,250
$2,292
$2,058
$8,207
$7,517
 Defined Benefit Pension PlanSupplemental Non-qualified Defined Benefit Retirement PlansNon-pension Defined Benefit Postretirement Healthcare Plan
 201320122013201220132012
Accumulated benefit obligation$55,283
$63,417
$3,131
$3,427
$5,850
$6,766

Components of Net Periodic Expense (dollars in thousands)
Defined Benefit Pension PlansSupplemental Non-qualified Defined Benefit Retirement PlansNon-pension Defined Benefit Postretirement PlansDefined Benefit Pension PlanSupplemental Non-qualified Defined Benefit Retirement PlansNon-pension Defined Benefit Postretirement Healthcare Plan
201120102009201120102009201120102009201320122011201320122011201320122011
Service cost$798
$1,214
$1,155
$
$
$
$210
$340
$216
$852
$765
$798
$
$
$
$216
$214
$210
Interest cost3,093
3,280
3,143
114
100
100
365
547
444
2,969
2,969
3,092
133
104
114
239
343
365
Expected return on assets(3,619)(3,008)(2,780)





(3,764)(3,139)(3,619)





Amortization of prior service cost62
62
87



(314)(141)
Amortization of prior service cost (credits)43
57
62



(278)(278)(314)
Amortization of transition obligation






171
51
2,609








Amortization of loss (gain)








Recognized net actuarial loss (gain)1,486
1,378
1,586
48
30
43
163



2,599
1,486
66
55
48
9
139
163
Curtailment expense
57
189















Net periodic expense$1,820
$2,983
$3,380
$162
$130
$143
$424
$917
$711
$2,709
$3,251
$1,819
$199
$159
$162
$186
$418
$424


48



Accumulated Other Comprehensive Income (Loss)

Amounts included in AOCI, after-tax, that have not yet been recognized as components of net periodic benefit cost at December 31 were as follows (in thousands):
Defined Benefit Pension PlansSupplemental Non-qualified Defined Benefit Retirement PlansNon-pension Defined Benefit Postretirement PlansDefined Benefit Pension PlanSupplemental Non-qualified Defined Benefit Retirement PlansNon-pension Defined Benefit Postretirement Healthcare Plan
201120102011201020112010201320122013201220132012
Net loss$
$
$(489)$(418)$
$
$
$
$(479)$(660)$
$
Prior service cost











Transition obligation





$
$
$(489)$(418)$
$
 
Total accumulated other comprehensive income (loss)$
$
$(479)$(660)$
$

The amounts in AOCI, regulatory assets or regulatory liabilities, after-tax, expected to be recognized as a component of net periodic benefit cost during calendar year 20122014 were as follows (in thousands):
Defined Benefits Pension PlansSupplemental Non-qualified Defined Benefit Retirement PlansNon-pension Defined Benefit Postretirement PlansDefined Benefits Pension PlanSupplemental Non-qualified Defined Benefit Retirement PlansNon-pension Defined Benefit Postretirement Healthcare Plan
Net loss$1,689
$36
$90
$611
$29
$
Prior service cost37

(181)28

(206)
Transition obligation


Total net periodic benefit cost expected to be recognized during calendar year 2011$1,726
$36
$(90)
Total net periodic benefit cost expected to be recognized during calendar year 2014$639
$29
$(206)


45



Assumptions
Defined Benefit Pension PlansSupplemental Non-qualified Defined Benefit Retirement PlansNon-pension Defined Benefit Postretirement PlansDefined Benefit Pension PlanSupplemental Non-qualified Defined Benefit Retirement PlansNon-pension Defined Benefit Postretirement Healthcare Plan
201120102009201120102009201120102009201320122011201320122011201320122011
Weighted-average assumptions used to determine benefit obligations:  
Discount rate4.65%5.50%6.05%4.70%5.50%6.10%4.35%5.00%5.90%5.10%4.35%4.65%4.68%4.25%4.70%4.45%3.65%4.35%
Rate of increase in compensation levels3.67%3.70%4.25%N/A
5.00%5.00%N/A
N/A
N/A
3.86%3.91%3.67%N/A
N/A
N/A
N/A
N/A
N/A
  
Weighted-average assumptions used to determine net periodic benefit cost for plan year:  
Discount rate5.50%6.05%6.25%5.00%6.10%6.20%5.00%5.90%6.10%4.35%4.65%5.50%3.88%4.70%5.00%3.65%4.35%5.00%
Expected long-term rate of return on assets*7.75%8.00%8.50%N/A
N/A
N/A
N/A
N/A
N/A
7.25%7.25%7.75%N/A
N/A
N/A
N/A
N/A
N/A
Rate of increase in compensation levels3.70%4.25%4.25%N/A
5.00%5.00%N/A
N/A
N/A
3.91%3.67%3.70%N/A
N/A
N/A
N/A
N/A
N/A
_____________________________
*
The expected rate of return on plan assets changed to 7.25%is 6.75% for the calculation of the 20122014 net periodic pension cost.


49



The healthcare benefit obligation was determined at December 31 2011, usingas follows:
 20132012
Healthcare trend rate pre-65  
Trend for next year7.50%7.75%
Ultimate trend rate4.50%4.50%
Year Ultimate Trend Reached2027
2027
   
Healthcare trend rate post-65  
Trend for next year6.25%6.50%
Ultimate trend rate4.50%4.50%
Year Ultimate Trend Reached2026
2026

We do not pre-fund our post-retirement benefit plan. The table below shows the estimated impacts of an initialincrease or decrease to our healthcare trend rate of 9.01% grading down to an ultimate rate of 4.5% in 2028, and at December 31, 2010, using an initial healthcare trend rate of 9.51% trending down to an ultimate rate of 4.5% in 2027.

The healthcare cost trend rate assumption has a significant effect on the amounts reported. A 1% increase or 1% decrease in the healthcare cost trend assumptions would affect the service and interest costs and the accumulated periodic postretirement benefit obligation as followsfor our Retiree Health Care Plan (dollars in thousands):
Change in Assumed Trend RateService and Interest Costs
Accumulated Periodic Postretirement Benefit Obligation
Service and Interest CostsAccumulated Periodic Postretirement Benefit Obligation
1% increase$22
$422
$9
$179
1% decrease$(19)$(372)$(9)$(165)

The following benefit payments, which reflect future service, are expected to be paid (in thousands):
Defined Benefit Pension PlansSupplemental Non-qualified Defined Benefit Retirement PlansNon-pension Defined Benefit Postretirement PlansDefined Benefit Pension PlanSupplemental Non-qualified Defined Benefit Retirement PlansNon-pension Defined Benefit Postretirement Healthcare Plan
2012$3,159
$154
$658
2013$3,223
$113
$702
2014$3,258
$113
$652
$3,177
$217
$491
2015$3,323
$113
$635
$3,227
$214
$432
2016$3,338
$84
$639
$3,270
$184
$410
2017-2021$19,035
$684
$3,886
2017$3,367
$213
$418
2018$3,483
$210
$473
2019-2023$20,002
$1,271
$2,483

Defined Contribution Plan

The Parent sponsors a 401(k) retirement savings plan in which our employees may participate. Participants may elect to invest up to 50% of their eligible compensation on a pre-tax or after-tax basis, up to a maximum amount established by the Internal Revenue Service. The plan provides for company matching contributions and company retirement contributions. Employer contributions vest at 20% per year and are fully vested when the participant has 5 years of service.

46





(109)    RELATED-PARTY TRANSACTIONS

Non-Cash Dividend to Parent

We have recorded a non-cash dividend to our Parent for approximately $8.0 million and $44 million in 2013 and 2012 and decreased the utility money pool note receivable, net for approximately $8.0 million and $44 million, in 2013 and 2012 respectively.

50



Receivables and Payables

We have accounts receivable and accounts payable balances related to transactions with other BHC subsidiaries. These balances as of December 31 were as follows (in thousands):
 20112010
Related party accounts receivable$6,998
$6,891
Related party accounts payable$18,598
$12,562
 20132012
Receivable - affiliates$4,934
$5,027
Accounts payable - affiliates$21,082
$21,896

Money Pool Notes Receivable and Notes Payable

We have a Utility Money Pool Agreement (the Agreement) with the Parent,BHC, Cheyenne Light and Black Hills Utility Holdings.Energy. Under the agreement, we may borrow from BHC however the Parent. The Agreement restricts us from loaning funds to the ParentBHC or to any of the Parent'sBHCs’ non-utility subsidiaries; thesubsidiaries. The Agreement does not restrict us from making dividends to the Parent.BHC. Borrowings under the agreement bear interest at the weighted average daily cost of external fundsour parent company’s credit facility borrowings as defined under the Agreement, or if there are no external funds outstanding on that date, then the rate will be the daily one month LIBOR rate plus 1%1.0%.

AdvancesThe cost of borrowing under this note bear interest atthe Utility Money Pool was 2.75% above the daily LIBOR rate (3.05%1.60% at December 31, 20112013).

We had the following balances with the Utility Money Pool as of andDecember 31 (in thousands):
 20132012
Notes receivable (payable), net$17,292
$31,645

Net interest income (expense) relating to the Utility Money Pool for the years ended December 31, was as follows (in thousands):

 201120102009
Notes receivable (payable) with Utility Money Pool, net$50,477
$39,862
$57,737
    
Net interest income (expense)$1,414
$467
$(1,123)
 201320122011
Net interest income (expense)$505
$617
$1,414

Other Balances and Transactions

We have the following Power Purchase and Transmission Services Agreements with affiliated entities:

Cheyenne Light entered into a PPA with Happy Jack. Under a separate inter-company agreement expiring on September 3, 2028, Cheyenne Light has agreed to sell up to 15 MW of the facility output from Happy Jack to us.

Cheyenne Light entered into a PPA with Silver Sage. Under a separate inter-company agreement expiring on September 30, 2029, Cheyenne Light has agreed to sell 20 MW of energy from Silver Sage to us.

A Generation Dispatch Agreement with Cheyenne Light that requires us to purchase all of Cheyenne Light’s excess energy.


51



We had the following related party transactions for the years ended December 31 2011 and 2010 included in the corresponding captions in the accompanying Statements of Income:

We received revenues from Black Hills Wyoming, Inc. for electricity.

We received revenues from Cheyenne Light for the sale of electricity and dispatch services.

We recorded revenues relating to payments received pursuant to a natural gas swap entered into with Enserco.

We purchase coal from WRDC. These amounts are included in Fuel and purchased power on the accompanying Statements of Income.

We purchase excess power generated by Cheyenne Light.

In order to fuel our combustion turbine, we purchase natural gas from Enserco. These amounts are included in Fuel and purchased power on the accompanying Statements of Income.

In addition, we also pay the Parent and Black Hills Utility Holdings for allocated corporate support service costs incurred on our behalf.

We have two contracts with Cheyenne Light under which Cheyenne Light sells up to 40 MW of wind-generated, renewable energy to us. These amounts are included in Fuel and purchased power on the accompanying Statements of Income.

47



 201120102009
 (in thousands)
Revenues:   
Black Hills Wyoming for electricity$9
$574
$873
Cheyenne Light for electricity and dispatch services$957
$1,200
$1,823
    
Purchases:   
Coal purchases from WRDC$21,319
$13,569
$16,284
Excess power purchased from Cheyenne Light$9,363
$8,664
$8,580
Natural gas from Enserco*$647
$1,652
$2,250
Corporate support services from Parent and Black Hills Utility Holdings$18,567
$17,145
$15,014
Renewable wind energy from Cheyenne Light$5,236
$4,538
$2,791
_________________
*BHC sold Enserco on February 29, 2012.

We have funds on deposit from Black Hills Wyoming for transmission system reserve which are included in Other, non-current liabilities on the accompanying Balance Sheets. We have transmission system reserve balances as follows as of December 31 (in thousands):
 20112010
Transmission Deposit$2,110
$2,044

Interest on the transmission system reserve deposit accrues quarterly at an average prime rate (3.25% at December 31, 2011). We paid interest for the years ended December 31 as follows (in thousands):
 201120102009
Interest expense on transmission deposit$67
$65
$70
 201320122011
 (in thousands)
Revenues:   
Energy sold to Cheyenne Light$1,338
$2,372
$957
Rent from electric properties$3,627
$2,661
$7,523
    
Purchases:   
Purchase of coal from WRDC$18,542
$20,690
$21,319
Purchase of excess energy from Cheyenne Light$3,640
$3,139
$4,127
Purchase of renewable wind energy from Cheyenne Light - Happy Jack$1,886
$1,988
$1,955
Purchase of renewable wind energy from Cheyenne Light - Silver Sage$3,207
$3,269
$3,281
Corporate support services from Parent, Black Hills Service Company and Black Hills Utility Holdings$30,738
$24,163
$18,567


(1110)    SUPPLEMENTAL CASH FLOW INFORMATION

Years ended December 31,201120102009201320122011
(in thousands)(in thousands)
Non-cash investing activities - 
Property, plant and equipment financed with accrued liabilities$1,882
$7,188
$10,191
Money pool activity - net repayment of funds loaned$
$
$25,000
Non-cash financing activities - 
Money pool activity - net repayment of funds borrowed$
$
$(25,000)
Non-cash investing and financing activities - 
Property, plant and equipment acquired with accrued liabilities$13,590
$3,969
$1,882
Non-cash decrease to money pool note receivable, net$(8,000)$(43,984)$
Non-cash dividend to Parent company$8,000
$43,984
$
  
Supplemental disclosure of cash flow information:  
Cash (paid) refunded during the period for -  
Interest (net of amounts capitalized)$(16,294)$(19,554)$(14,252)$(19,174)$(17,099)$(16,294)
Income taxes$(15,347)$15,805
$3,700
$219
$7,176
$(15,347)



48



(1211)    COMMITMENTS AND CONTINGENCIES

Partial Sale of Wygen III

On April 9, 2009, we sold to MDU a 25% ownership interest in our Wygen III generation facility. At closing, MDU made a payment to us for its 25% share of the costs to date on the ongoing construction of the facility. Proceeds of $32.8 million were received of which $30.2 million was used to pay down a portion of Parent debt. MDU continued to reimburse us for its 25% of the total costs paid to complete the project. The Wygen III generation facility began commercial operations on April 1, 2010. In conjunction with the sales transaction, we also modified a 2004 PPA between us and MDU.

On July 14, 2010, we sold a 23% ownership interest in Wygen III to the City of Gillette for $62.0 million. The purchase terminates the current PPA with the City of Gillette, and the Wygen III Participation Agreement has been amended to include the City of Gillette. The Participation Agreement provides that the City of Gillette will pay us for administrative services and share in the costs of operating the plant for the life of the facility. The estimated amount of net fixed assets sold totaled $55.8 million. We recognized a gain on the sale of $6.2 million.

Power Purchase and Transmission Services Agreements

We have the following power purchase and transmission agreements, not including related party agreements, as of December 31, 20112013 (see Note 9 for information on related party agreements):

A PPA with PacifiCorp expiring on December 31, 2023, which provides for the purchase by us of 50 MW of electric capacity and energy. The price paid for the capacity and energy is based on the operating costs of one of PacifiCorp's coal firedPacifiCorp’s coal-fired electric generating plants;

A firm point-to-point transmission access agreement to deliver up to 50 MW of power on PacifiCorp'sPacifiCorp’s transmission system to wholesale customers in the western region through December 31, 2023; and

Cheyenne Light entered into a PPAAn agreement with Happy Jack. Under a separate inter-company agreementThunder Creek for gas transport capacity, expiring onin September 3, 2028October 31, 2019, Cheyenne Light has agreed to sell up to 15 MW of the facility output from Happy Jack to us;.


Cheyenne Light entered into a PPA with Silver Sage. Under a separate inter-company agreement expiring on September 30, 2029, Cheyenne Light has agreed to sell 20 MW of energy from Silver Sage to us; and52


A Generation Dispatch Agreement with Cheyenne Light that requires us to purchase all of Cheyenne Light's excess energy.

Costs incurred under these agreements were as follows for the years ended December 31 (in thousands):

ContractContract Type201120102009Contract Type201320122011
PacifiCorpElectric capacity and energy$12,515
$12,936
$11,862
Electric capacity and energy$13,026
$13,224
$12,515
PacifiCorpTransmission access$1,215
$1,215
$1,215
Transmission access$1,384
$1,215
$1,215
Cheyenne LightHappy Jack Wind Farm$1,955
$2,815
$2,078
Cheyenne LightSilver Sage Wind Farm$3,281
$1,723
$713
Thunder CreekGas transport capacity$633
$633
$633

Future Contractual Obligations

The following is a schedule of future minimum payments required under the power purchase, transmission services, coalfacility and vehicle leases, and gas supply agreements (in thousands):
2012$11,895
2013$11,895
2014$11,895
$12,451
2015$11,895
$12,443
2016$11,895
$12,443
2017$12,443
2018$6,133
Thereafter$49,091
$28,764


49



Long-Term Power Sales Agreements

We have the following power sales agreements as of December 31, 20112013:

During periods of reduced production at Wygen III in which MDU owns a portion of the capacity, or during periods when Wygen III is off-line, MDU will be provided with 25 MW from our other generation facilities or from system purchases with reimbursement of costs by MDU;

During periods of reduced production at Wygen III in which the City of Gillette owns a portion of the capacity, or during periods when Wygen III is off-line, we will provide the City of Gillette with its first 23 MW from our other generating facilities or from system purchases with reimbursement of costs by the City of Gillette. Under this agreement, Black Hills Power will also provide the City of Gillette their operating component of spinning reserves;

An agreement under which we supply energy and capacity to MEAN expiring on May 31, 2023. This contract is unit-contingent based on up to 10 MW from our Neil Simpson II and up to 10 MW from our Wygen III plants. The energy and capacity purchase requirements decrease over the term of the agreement.agreement; and

A PPA with MEAN, expiring on April 1, 2015. Under this contract, MEAN purchases 5 MW of unit-contingent energy and capacity from Neil Simpson II and 5 MW of unit-contingent capacity from Wygen III.

Oil Creek Fire
On June 29, 2012, a forest and grassland fire occurred in the western Black Hills of Wyoming. A fire investigator concluded that the fire was caused by the failure of a transmission structure owned, operated and maintained by us. On April 16, 2013, thirty-five private parties filed suit in the United States District Court for the District of Wyoming, asserting claims for damages against us based upon allegations of negligence, negligence per se, common law nuisance, and trespass. Although not currently included in the lawsuit, we also received written damage claims from an additional landowner and from the State of Wyoming. Altogether the claims seek recovery for fire suppression, reclamation and rehabilitation costs, damage to fencing and other personal property, alleged injury to timber, grass or hay, livestock and related operations, and diminished value of real estate, for a current total amount of $15 million. In addition to claims for these compensatory damages, the lawsuit seeks recovery of punitive damages. Our investigation of the cause and origin of the fire is ongoing. We have denied and will vigorously defend all claims arising out of the fire, pending the completion of our investigation. Given the uncertainty of litigation, however, a loss related to the fire, the litigation and related claims, is reasonably possible. We cannot reasonably estimate the amount of a potential loss because our investigation is ongoing, and because damage claims are currently incomplete or undocumented. Further claims may be presented by these and other parties. We cannot predict the outcome of our investigation, the viability of alleged claims or the outcome of the litigation. Based upon information currently available, however, management does not expect the claims, if determined adversely to us, to have a material adverse effect upon our financial condition, results of operations or cash flows.

53




Legal Proceedings

We are subject to various legal proceedings, claims and litigation which arise in the ordinary course of operations. In the opinion of management, the amount of liability, if any, with respect to these actions would not materially affect our financial position, results of operations or cash flows.

In the normal course of business, we enter into agreements that include indemnification in favor of third parties, such as information technology agreements, purchase and sale agreements and lease contracts. We have also agreed to indemnify our directors, officers and employees in accordance with our articles of incorporation, as amended. Certain agreements do not contain any limits on our liability and therefore, it is not possible to estimate our potential liability under these indemnifications. In certain cases, we have recourse against third parties with respect to these indemnities. Further, we maintain insurance policies that may provide coverage against certain claims under these indemnities.

Environmental Matters

We are subject to costs resulting from a number of federal, state and local laws and regulations which affect future planning and existing operations. They can result in increased capital expenditures, operating and other costs as a result of compliance, remediation and monitoring obligations. Due to the environmental issues discussed below, we may be required to modify, curtail, replace or cease operating certain facilities or operations to comply with statutes, regulations and other requirements of regulatory bodies.

Air

Our generation facilities are subject to federal, state and local laws and regulations relating to the protection of air quality. These laws and regulations cover, among other pollutants, carbon monoxide, SO2, NOx, mercury particulate matter and GHG. Power generating facilities burning fossil fuels emit each of the foregoing pollutants and, therefore, are subject to substantial regulation and enforcement oversight by various governmental agencies.

Title IV of the Clean Air Act applies to several of our generation facilities, including the Neil Simpson II, Neil Simpson CT II, Lange CT, Wygen III and Wyodak plants. Title IV of the Clean Air Act created an SO2 allowance trading program as part of the federal acid rain program. Without purchasing additional allowances, we currently hold sufficient allowances to satisfy Title IV at all such plants through 2042.

The EPA issued the Industrial and Commercial Boiler Regulations for Area Sources of Hazardous Air Pollutants, with updates which impose emission limits, fuel requirements and monitoring requirements. The rule has a compliance deadline of March 21, 2014. In anticipation of this rule, we suspended operations at the Osage plant on October 1, 2010 and as a result of this rule, we suspended operations at the Ben French facility on August 31, 2012 with plans to retire Osage, Ben French and Neil Simpson I on or before March 21, 2014. While the net book value of these plants is estimated to be insignificant at the time of retirement, we would reasonably expect any remaining value to be recovered through future rates.

Solid Waste Disposal

Various materials used at our facilities are subject to disposal regulations. Our Osage plant, at which operations have been suspended, has an on-site ash impoundment that is near capacity. An application to close the impoundment was approved by the State of Wyoming on April 13, 2012. Site closure work was completed in 2013 and post closure monitoring activities will continue for 30 years. In September 2013, Osage also received a permit to close the small industrial rubble landfill. Site work was completed and post closure monitoring will continue for 30 years.



54




(1312)    QUARTERLY HISTORICAL DATA (Unaudited)

We operate on a calendar year basis. The following table sets forth selected unaudited historical operating results data for each quarter (in thousands):
First
Quarter
Second
Quarter
Third
Quarter
Fourth
Quarter
First
Quarter
Second
Quarter
Third
Quarter
Fourth
Quarter
2011 
2013 
Operating revenues$59,194
$56,098
$64,940
$65,399
$59,817
$60,832
$67,268
$66,110
Operating income$11,917
$9,181
$19,175
$14,447
$12,503
$14,293
$18,704
$16,844
Net income$5,881
$3,741
$10,510
$6,965
$5,582
$6,652
$9,298
$8,641
  
2010 
2012 
Operating revenues$54,489
$56,438
$59,051
$59,785
$62,270
$58,372
$61,134
$61,533
Operating income$9,361
$10,510
$21,092
$14,305
$12,742
$13,859
$15,361
$15,619
Net income$5,934
$4,102
$14,078
$7,154
$6,053
$6,727
$8,147
$6,159

ITEM 9.    CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
ITEM 9.CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
FINANCIAL DISCLOSURE

None.



50



ITEM 9A.    CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Our Chief Executive Officer and Chief Financial Officer evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934 (Exchange Act)) as of December 31, 2011 and2013. Based on their evaluation, they have concluded that because of the material weakness in our internal control over financial reporting related to accounting for income taxes discussed below, our disclosure controls and procedures were not effective as of December 31, 2011. Additional review, evaluation and oversight have been undertaken to ensure our financial statements were prepared in accordance with generally accepted accounting principles and as a result, our management, including our Chief Executive Officer and Chief Financial Officer, have concluded that the financial statements in this Form 10-K fairly present in all material respects our financial position, results of operations and cash flows for the periods presented in conformity with accounting principles generally accepted in the United States.


Management's Report on Internal Control over Financial Reporting

We are responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934, as amended.Our internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.effective.

All internal control systems, no matter how well designed, have inherent limitations. Therefore, even those systems determined to be effective can provide only reasonable assurance with respect to financial statement preparation and presentation. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Under the supervision and with the participation of management, including our Chief Executive Officer and Chief Financial Officer, we conducted an evaluation of the effectiveness of our internal control over financial reporting as of December 31, 2011, based on the criteria set forth in Internal Control - Integrated Frameworkissued by the Committee of Sponsoring Organizations of the Treadway Commission. This evaluation included review of the documentation of controls, evaluation of the design effectiveness of controls, testing of the operating effectiveness of controls and a conclusion on this evaluation. Based on our evaluation, including consideration of the internal control deficiencies discussed below, we have concluded that our internal control over financial reporting was not effective as of December 31, 2011. Specifically, we determined that the following internal control deficiencies when considered in the aggregate constitute a material weakness in internal control over financial reporting related to accounting for income taxes.

The assessment of the impact of certain non-routine transactions on the accuracy of our year-end income tax provision was not effective.

Tax resources were not sufficient to effectively prepare and review the analysis of tax accounts.

Communication between the tax department and the Controller organization was not effective to ensure income tax accounting consequences were adequately considered.

A material weakness is a deficiency, or combination of deficiencies, that result in a reasonable possibility that a material misstatement of a company's annual or interim financial statements will not be prevented or detected on a timely basis. While the above noted deficiencies did not result in a material misstatement to our annual financial statements, these deficiencies could if not remediated, result in a material misstatement of future financial statements.

This annual report does not include an attestation report of our registered public accounting firm regarding internal control over financial reporting because this requirement is inapplicable to companies such as ours which are known as "non-accelerated filers."

Black Hills Power


51



Changes in Internal Control over Financial Reporting

Management’s Report on Internal Control over Financial Reporting is presented on Page 24 of this Annual Report on Form 10-K.

During theour fourth fiscal quarter, ended December 31, 2011, there have been no changes in our internal controlcontrols over financial reporting that have materially affected or are reasonably likely to materially affect our internal controlcontrols over financial reporting.

55


While no changes to our internal controls over financial reporting are noted during the quarter ended December 31, 2011, a material weakness was identified as set forth in “Management's Report on Internal Control over Financial Reporting” above. Management believes the measures described below will remediate the identified control deficiencies and enhance our internal controls over financial reporting:

Increase tax department resources to ensure completion and documentation of a more thorough analysis that supports our calculation of the effective tax rate and valuation of deferred tax assets and liabilities.

Implement formal periodic meetings among the Chief Financial Officer, Controller and the tax department to ensure adequate consideration of items that may impact income tax accounting.

ITEM 9B.    OTHER INFORMATION

None.


ITEM 14.    PRINCIPAL ACCOUNTING FEES AND SERVICES

The following table sets forth the aggregate fees for services provided to us for the fiscal years ended December 31 2011 and 2010 by our independent registered public accounting firm, Deloitte & Touche LLP (in thousands):
Deloitte & Touche LLP2011201020132012
Audit Fees$336
$335
$345
$128
Tax Fees22
157
4
94
Audit-related fees
48


Total$358
$540
$349
$222

Audit Fees. Fees for professional services rendered for the audits of our financial statements, review of the interim financial statements included in quarterly reports and services that generally only the independent auditor can reasonably provide, such as comfort letters, statutory audits, consents and assistance with and review of documents filed with the Securities and Exchange Commission.

Tax Fees. Fees for services related to tax compliance, and tax planning and advice including tax assistance with tax audits. These services include assistance regarding federal and state tax compliance and advice, review of tax returns, and federal and state tax planning.

Audit-Related Fees. Fees for assurance and related services that are reasonably related to the performance of the audit or review of our financial statements and are not reported under "Audit“Audit Fees." These services may include internal control reviews; attest services that are not required by statute or regulation; employee benefit plan audits; due diligence, consultations and audits related to mergers and acquisitions; and consultations concerning financial accounting and reporting standards.

The services performed by Deloitte & Touche LLP were pre-approved in accordance with the Black Hills Corporation Audit Committee'sCommittee’s pre-approval policy whereby the Audit Committee pre-approves all audit and permissible non-audit services provided by the independent registered public accountants. The Audit Committee annually reviews the services expected to be provided by the independent auditors and establishestablishes pre-approval fee levels for each category of services to be provided, including audit, audit-related, tax and other services. Any service that is not included in the approved list of services must be separately pre-approved by the Audit Committee.



5256




ITEM 15.EXHIBITS, FINANCIAL STATEMENT SCHEDULES

(a)1.Financial Statements
   
  Financial statements required by Item 15 are listed in the index included in Item 8 of Part II.
   
 2.Schedules

Schedule II - Valuation and Qualifying Accounts for the years ended December 31, 20112013, 20102012 and 20092011

  All other schedules have been omitted because of the absence of the conditions under which they are required or because the required information is included elsewhere in the financial statements incorporated by reference in this Form 10-K.


SCHEDULE II
BLACK HILLS POWER, INC.
VALUATION AND QUALIFYING ACCOUNTS
YEARS ENDED DECEMBER 31, 2011, 2010 AND 2009
BLACK HILLS POWER, INC.
VALUATION AND QUALIFYING ACCOUNTS
YEARS ENDED DECEMBER 31,
BLACK HILLS POWER, INC.
VALUATION AND QUALIFYING ACCOUNTS
YEARS ENDED DECEMBER 31,
DescriptionBalance at beginning of yearAdditions Charged to costs and expensesDeductionsBalance at end of yearBalance at beginning of yearAdditions charged to costs and expensesDeductions charged to costs and expensesBalance at end of year
(in thousands)(in thousands)
Allowance for doubtful accounts:  
2013$102
$754
$(636)$220
2012$143
$503
$(544)$102
2011$230
$551
$(638)$143
$230
$551
$(638)$143
2010$259
$499
$(528)$230
2009$370
$316
$(427)$259


5357



3.    Exhibits
3.Exhibits
Exhibit Number
Description
3.1*Restated Articles of Incorporation of the Registrant (filed as an exhibit to the Registrant'sRegistrant’s Form 8-K dated June 7, 1994 (No. 1-7978)).
  
3.2*Articles of Amendment to the Articles of Incorporation of the Registrant, as filed with the Secretary of State of the State of South Dakota on December 22, 2000 (filed as an exhibit to the Registrant'sRegistrant’s Form 10-K for 2000).
  
3.3*Bylaws of the Registrant (filed as an exhibit to the Registrant'sRegistrant’s Registration Statement on Form S-8 dated July 13, 1999).
  
4.1*Restated and Amended Indenture of Mortgage and Deed of Trust of Black Hills Corporation (now called Black Hills Power, Inc.) dated as of September 1, 1999 (filed as Exhibit 4.19 to the Registrant'sRegistrant’s Post-Effective Amendment No. 1 to the Registrant'sRegistrant’s Registration Statement on Form S-3 (No. 333-150669-01)). First Supplemental Indenture, dated as of August 13, 2002, between Black Hills Power, Inc. and The Bank of New York Mellon (as successor to JPMorganJ.P. Morgan Chase Bank), as Trustee (filed as Exhibit 4.20 to the Registrant'sRegistrant’s Post-Effective Amendment No. 1 to the Registrant'sRegistrant’s Registration Statement on Form S-3 (No. 333-150669-01)). Second Supplemental Indenture, dated as of October 27, 2009, between Black Hills Power, Inc. and The Bank of New York Mellon (filed as Exhibit 4.21 to the Registration Statement on Form S-3 (No. 333-150669-01)).
  
10.1*Restated and Amended Coal Supply Agreement for NS II dated February 12, 1993 (filed as Exhibit 10.1 to the Registrant'sRegistrant’s Post-Effective Amendment No. 1 to the Registrant'sRegistrant’s Registration Statement on Form S-3 (No. 333-150669-01)).
  
10.2*Second Restated and Amended Power Sales Agreement dated September 29, 1997, between PacifiCorp and Black Hills Power, Inc. (filed as Exhibit 10.2 to the Registrant'sRegistrant’s Post-Effective Amendment No. 1 to the Registrant'sRegistrant’s Registration Statement on Form S-3 (No. 333-150669-01)).
10.3*Reserve Capacity Integration Agreement dated May 5, 1987, between Pacific Power & Light Company and Black Hills Power, Inc. (filed as Exhibit 10.3 to the Registrant's Post-Effective Amendment No. 1 to the Registrant's Registration Statement on Form S-3 (No. 333-150669-01)).
23Independent Auditors' Consent
  
31.1Certification of Chief Executive Officer pursuant to Rule13a-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
  
31.2Certification of Chief Financial Officer pursuant to Rule13a-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
  
32.1Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
  
32.2Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
  
101Financials for XBRL Format
_________________________
*Previously filed as part of the filing indicated and incorporated by reference herein.

(a)See (a) 3. Exhibits above.
(b)See (a) 2. Schedules above.

54



SUPPLEMENTAL INFORMATION TO BE FURNISHED WITH REPORTS FILED PURSUANT TO SECTION 15(d) OF THE ACT BY REGISTRANTS WHICH HAVE NOT REGISTERED SECURITIES PURSUANT TO SECTION 12 OF THE ACT.

The Registrant is not required to send an Annual Report or Proxy to its sole security holder and parent company, Black Hills Corporation.


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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
  BLACK HILLS POWER, INC.
   
  By/s/ DAVID R. EMERY
  David R. Emery, Chairman and
  Chief Executive Officer
   
Dated:March 12, 2012February 27, 2014 

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

/s/ DAVID R. EMERYDirector andMarch 12, 2012February 27, 2014
David R. Emery, Chairman andPrincipal Executive Officer 
Chief Executive Officer  
   
/s/ ANTHONY S. CLEBERGPrincipal Financial andMarch 12, 2012February 27, 2014
Anthony S. Cleberg, Executive Vice PresidentAccounting Officer 
and Chief Financial Officer  
   
/s/ DAVID C. EBERTZDirectorMarch 12, 2012
David C. Ebertz
/s/ JACK W. EUGSTERDirectorMarch 12, 2012February 27, 2014
Jack W. Eugster  
   
/s/ JOHN R. HOWARDMICHAEL H. MADISONDirectorMarch 12, 2012February 27, 2014
John R. HowardMichael H. Madison  
   
/s/ STEVEN R. MILLSDirectorMarch 12, 2012February 27, 2014
Stephen R. Mills  
   
/s/ STEPHEN D. NEWLINDirectorMarch 12, 2012February 27, 2014
Stephen D. Newlin  
   
/s/ GARY L. PECHOTADirectorMarch 12, 2012February 27, 2014
Gary L. Pechota  
   
/s/ REBECCA B. ROBERTSDirectorMarch 12, 2012February 27, 2014
Rebecca B. Roberts  
   
/s/ WARREN L. ROBINSONDirectorMarch 12, 2012February 27, 2014
Warren L. Robinson  
   
/s/ JOHN B. VERINGDirectorMarch 12, 2012February 27, 2014
John B. Vering  
   
/s/ THOMAS J. ZELLERDirectorMarch 12, 2012February 27, 2014
Thomas J. Zeller  

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INDEX TO EXHIBITS

Exhibit NumberDescription
  
3.1*Restated Articles of Incorporation of the Registrant (filed as an exhibit to the Registrant'sRegistrant’s Form 8-K dated June 7, 1994 (No. 1-7978)).
  
3.2*Articles of Amendment to the Articles of Incorporation of the Registrant, as filed with the Secretary of State of the State of South Dakota on December 22, 2000 (filed as an exhibit to the Registrant'sRegistrant’s Form 10-K for 2000).
  
3.3*Bylaws of the Registrant (filed as an exhibit to the Registrant'sRegistrant’s Registration Statement on Form S-8 dated July 13, 1999).
  
4.1*Restated and Amended Indenture of Mortgage and Deed of Trust of Black Hills Corporation (now called Black Hills Power, Inc.) dated as of September 1, 1999 (filed as Exhibit 4.19 to the Registrant'sRegistrant’s Post-Effective Amendment No. 1 to the Registrant'sRegistrant’s Registration Statement on Form S-3 (No. 333-150669-01)). First Supplemental Indenture, dated as of August 13, 2002, between Black Hills Power, Inc. and The Bank of New York Mellon (as successor to JPMorganJ.P. Morgan Chase Bank), as Trustee (filed as Exhibit 4.20 to the Registrant'sRegistrant’s Post-Effective Amendment No. 1 to the Registrant'sRegistrant’s Registration Statement on Form S-3 (No. 333-150669-01)). Second Supplemental Indenture, dated as of October 27, 2009, between Black Hills Power, Inc. and The Bank of New York Mellon (filed as Exhibit 4.21 to the Registration Statement on Form S-3 (No. 333-150669-01)).
  
10.1*Restated and Amended Coal Supply Agreement for NS II dated February 12, 1993 (filed as Exhibit 10.1 to the Registrant'sRegistrant’s Post-Effective Amendment No. 1 to the Registrant'sRegistrant’s Registration Statement on Form S-3 (No. 333-150669-01)).
  
10.2*Second Restated and Amended Power Sales Agreement dated September 29, 1997, between PacifiCorp and Black Hills Power, Inc. (filed as Exhibit 10.2 to the Registrant'sRegistrant’s Post-Effective Amendment No. 1 to the Registrant'sRegistrant’s Registration Statement on Form S-3 (No. 333-150669-01)).
10.3*Reserve Capacity Integration Agreement dated May 5, 1987, between Pacific Power & Light Company and Black Hills Power, Inc. (filed as Exhibit 10.3 to the Registrant's Post-Effective Amendment No. 1 to the Registrant's Registration Statement on Form S-3 (No. 333-150669-01)).
23Independent Auditors' Consent
  
31.1Certification of Chief Executive Officer pursuant to Rule13a-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
  
31.2Certification of Chief Financial Officer pursuant to Rule13a-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
  
32.1Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
  
32.2Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
  
101Financial Statements for XBRL Format
_________________________
*Previously filed as part of the filing indicated and incorporated by reference herein.


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