UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended ~~March 31,~~June 30, 2022

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Name of Registrant, State of Incorporation, Address of Principal Executive Offices, Telephone Number, Commission File Number, IRS Employer Identification Number

ALLIANT ENERGY CORPORATION

(a Wisconsin Corporation)

4902 N. Biltmore Lane

Madison, Wisconsin 53718

Telephone (608) 458-3311

Commission File Number - 1-9894

IRS Employer Identification Number - 39-1380265

INTERSTATE POWER & LIGHT COMPANY

(an Iowa corporation)

Alliant Energy Tower

Cedar Rapids, Iowa 52401

Telephone (319) 786-4411

Commission File Number - 1-4117

IRS Employer Identification Number - 42-0331370

WISCONSIN POWER & LIGHT COMPANY

(a Wisconsin corporation)

4902 N. Biltmore Lane

Madison, Wisconsin 53718

Telephone (608) 458-3311

Commission File Number - 0-337

IRS Employer Identification Number - 39-0714890

This combined Form 10-Q is separately filed by Alliant Energy Corporation, Interstate Power and Light Company and Wisconsin Power and Light Company. Information contained in the Form 10-Q relating to Interstate Power and Light Company and Wisconsin Power and Light Company is filed by each such registrant on its own behalf. Each of Interstate Power and Light Company and Wisconsin Power and Light Company makes no representation as to information relating to registrants other than itself.

Securities registered pursuant to Section 12(b) of the Act:

Alliant Energy Corporation, Common Stock, $0.01 Par Value, Trading Symbol LNT, Nasdaq Global Select Market

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.

Alliant Energy Corporation - Yes ☒ No ☐

Interstate Power and Light Company - Yes ☒ No ☐

Wisconsin Power and Light Company - Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted 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 such files).

Alliant Energy Corporation - Yes ☒ No ☐

Interstate Power and Light Company - Yes ☒ No ☐

Wisconsin Power and Light Company - Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Alliant Energy Corporation - Large Accelerated Filer ☒ Accelerated Filer ☐ Non-accelerated Filer ☐ Smaller Reporting Company ☐ Emerging Growth Company ☐

Interstate Power and Light Company - Large Accelerated Filer ☐ Accelerated Filer ☐ Non-accelerated Filer ☒ Smaller Reporting Company ☐ Emerging Growth Company ☐

Wisconsin Power and Light Company - Large Accelerated Filer ☐ Accelerated Filer ☐ Non-accelerated Filer ☒ Smaller Reporting Company ☐ Emerging Growth Company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

Alliant Energy Corporation ☐

Interstate Power and Light Company ☐

Wisconsin Power and Light Company ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Alliant Energy Corporation - Yes ☐ No ☒

Interstate Power and Light Company - Yes ☐ No ☒

Wisconsin Power and Light Company - Yes ☐ No ☒

Number of shares outstanding of each class of common stock as of ~~March 31,~~June 30, 2022:

Alliant Energy Corporation, Common Stock, $0.01 par value, ~~250,813,728~~250,926,232 shares outstanding

Interstate Power and Light Company, Common Stock, $2.50 par value, 13,370,788 shares outstanding (all outstanding shares are owned beneficially and of record by Alliant Energy Corporation)

Wisconsin Power and Light Company, Common Stock, $5 par value, 13,236,601 shares outstanding (all outstanding shares are owned beneficially and of record by Alliant Energy Corporation)

Table of Contents

TABLE OF CONTENTS


			Page
Definitions			1
Forward-looking Statements			1
Part I. Financial Information			3
Item 1. Condensed Consolidated Financial Statements (Unaudited)			3
Alliant Energy Corporation			3
Interstate Power and Light Company			6
Wisconsin Power and Light Company			9
Combined Notes to Condensed Consolidated Financial Statements			12
1. Summary of Significant Accounting Policies			12
2. Regulatory Matters			1213

3. ~~Receivables~~Property, Plant and Equipment			13
4.4 . Receivables			14
5 . Investments			13
~~5. Common Equity~~			1314
6 . Common Equity			14
7 . Debt			1517

78 . Revenues			1518
89 . Income Taxes			1518
910 . Benefit Plans			1619

1 01 . Derivative Instruments			17
1 1 ~~. Fair Value Measurements~~			1820
1 2 . ~~Commitments and Contingencies~~			19
1 3 ~~. Segments of Business~~Fair Value Measurements			21
1 3 . Commitments and Contingencies			23
1 4 . Segments of Business			24
1 5 . Related Parties			2126

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations			2226
Item 3. Quantitative and Qualitative Disclosures About Market Risk			2733
Item 4. Controls and Procedures			2733
Part II. Other Information			2733
Item 1. Legal Proceedings			2733
Item 1A. Risk Factors			2733
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds			2733
Item 6. Exhibits			2834
Signatures			2834

Table of Contents

DEFINITIONS

The following abbreviations or acronyms used in this report are defined below:


Abbreviation or Acronym	Definition	Abbreviation or Acronym	Definition
2021 Form 10-K	Combined Annual Report on Form 10-K filed by Alliant Energy, IPL and WPL for the year ended Dec. 31, 2021	IPL	Interstate Power and Light Company
AEF	Alliant Energy Finance, LLC	IUB	Iowa Utilities Board
AFUDC	Allowance for funds used during construction	MDA	Management’s Discussion and Analysis of Financial Condition and Results of Operations
Alliant Energy	Alliant Energy Corporation	MISO	Midcontinent Independent System Operator, Inc.
ATC	American Transmission Company LLC	MW	Megawatt
ATC Holdings	Interest in American Transmission Company LLC and ATC Holdco LLC	MWh	Megawatt-hour
Corporate Services	Alliant Energy Corporate Services, Inc.	N/A	Not applicable
DAEC	Duane Arnold Energy Center	Note(s)	Combined Notes to Condensed Consolidated Financial Statements
Dth	Dekatherm	OPEB	Other postretirement benefits
EGU	Electric generating unit	PPA	Purchased power agreement
EPA	U.S. Environmental Protection Agency	PSCW	Public Service Commission of Wisconsin
EPS	Earnings per weighted average common share	SEC	Securities and Exchange Commission
FERC	Federal Energy Regulatory Commission	U.S.	United States of America
Financial Statements	Condensed Consolidated Financial Statements	West Riverside	West Riverside Energy Center
FTR	Financial transmission right	Whiting Petroleum	Whiting Petroleum Corporation
GAAP	U.S. generally accepted accounting principles	WPL	Wisconsin Power and Light Company

FORWARD-LOOKING STATEMENTS

Statements contained in this report that are not of historical fact are forward-looking statements intended to qualify for the safe harbors from liability established by the Private Securities Litigation Reform Act of 1995. These forward-looking statements can be identified as such because the statements include words such as “may,” “believe,” “expect,” “anticipate,” “plan,” “project,” “will,” “projections,” “estimate,” or other words of similar import. Similarly, statements that describe future financial performance or plans or strategies are forward-looking statements. Such forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from those expressed in, or implied by, such statements. Some, but not all, of the risks and uncertainties of Alliant Energy, IPL and WPL that could materially affect actual results include:

•the impact of penalties or third-party claims related to, or in connection with, a failure to maintain the security of personally identifiable information, including associated costs to notify affected persons and to mitigate their information security concerns;

•the direct or indirect effects resulting from terrorist incidents, including physical attacks and cyber attacks, or responses to such incidents;

•the impact of customer- and third party-owned generation, including alternative electric suppliers, in IPL’s and WPL’s service territories on system reliability, operating expenses and customers’ demand for electricity;

•the impact of energy efficiency, franchise retention and customer disconnects on sales volumes and margins;

•the impact that price changes may have on IPL’s and WPL’s customers’ demand for electric, gas and steam services and their ability to pay their bills;

•IPL’s and WPL’s ability to obtain adequate and timely rate relief to allow for, among other things, the recovery of and/or the return on costs, including fuel costs, operating costs, transmission costs, deferred expenditures, deferred tax assets, tax expense, capital expenditures, and remaining costs related to EGUs that may be permanently closed and certain other retired assets, decreases in sales volumes, earning their authorized rates of return, and the payments to their parent of expected levels of dividends;

•federal and state regulatory or governmental actions, including the impact of legislation, and regulatory agency orders;

•the ability to utilize tax credits and net operating losses generated to date, and those that may be generated in the future, before they expire;

•the impacts of changes in the tax code, including tax rates, minimum tax rates, and adjustments made to deferred tax assets and liabilities;

•the ability to complete construction of renewable generation and storage projects by planned in-service dates and within the cost targets set by regulators due to cost increases of and access to materials, equipment and commodities including due to tariffs, duties or other assessments, such as any additional tariffs resulting from U.S. Department of Commerce investigations into the sourcing of solar project materials and equipment from certain countries, labor issues or supply shortages, the ability to successfully resolve warranty issues or contract disputes, the ability to achieve the expected level of tax benefits based on tax guidelines and project costs, and the ability to efficiently utilize the renewable generation and storage project tax benefits for the benefit of customers;

•employee workforce factors, including changes in key executives, ability to hire and retain employees with specialized skills, ability to create desired corporate culture, collective bargaining agreements and negotiations, work stoppages or restructurings;

•inflation and higher interest rates;


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•changes in the price of delivered natural gas, transmission, purchased electricity and coal, particularly during elevated market prices, and any resulting changes to counterparty credit risk, due to shifts in supply and demand caused by market conditions, regulations and MISO’s annual resource adequacy process;

•changes to the creditworthiness of, or performance of obligations by, counterparties with which Alliant Energy, IPL and WPL have contractual arrangements, including participants in the energy markets and fuel suppliers and transporters;

•any material post-closing ~~payments~~payments related to any past asset divestitures, including the sale of Whiting Petroleum, which could result from, among other things, indemnification agreements, warranties, guarantees or litigation;


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~~Table of Contents~~

•weather effects on results of utility operations;

•the direct or indirect effects resulting from the ongoing novel coronavirus (COVID-19) pandemic and the spread of variant strains, including any vaccine mandates and testing requirements, on sales volumes, margins, operations, employees, labor markets, contractors, vendors, the ability to complete construction projects, supply chains, customers’ inability to pay bills, suspension of disconnects, the market value of the assets that fund pension plans and the potential for additional funding requirements, the ability of counterparties to meet their obligations, compliance with regulatory requirements, the ability to implement regulatory plans, economic conditions and access to capital markets;

•issues associated with environmental remediation and environmental compliance, including compliance with all environmental and emissions permits, the Coal Combustion Residuals Rule, future changes in environmental laws and regulations, including federal, state or local regulations for carbon dioxide emissions reductions from new and existing fossil-fueled EGUs, and litigation associated with environmental requirements;

•increased pressure from customers, investors and other stakeholders to more rapidly reduce carbon dioxide emissions;

•the ability to defend against environmental claims brought by state and federal agencies, such as the EPA, state natural resources agencies or third parties, such as the Sierra Club, and the impact on operating expenses of defending and resolving such claims;

•continued access to the capital markets on competitive terms and rates, and the actions of credit rating agencies;

•~~inflation and interest rates;~~

•disruptions to ongoing operations and the supply of materials, services, equipment and commodities needed to construct solar generation, battery storage and ~~storage~~electric and gas distribution projects, ~~and maintain ongoing operations, including due to~~which may result from geopolitical issues, ~~shortages,~~supplier manufacturing constraints, labor issues or transportation issues, ~~which may, among other potential impacts,~~as well as affect the ability to meet capacity requirements and result in increased capacity expense;

•possible changes to MISO’s methodology establishing capacity planning reserve margin and capacity accreditation requirements that may impact how and when new generating facilities such as IPL’s and WPL’s additional solar generation may be accredited with energy capacity and may require IPL and WPL to adjust their current resource plans, the need to add resources to comply with MISO’s proposal, or procure capacity in the market whereby such costs might not be recovered in rates;

•changes in the price of delivered natural gas, transmission, purchased electricity and coal, and any resulting changes to counterparty credit risk, due to shifts in supply and demand caused by market conditions, regulations and MISO’s annual resource adequacy process;

•disruptions in the supply and delivery of natural gas, purchased electricity and coal;

•the direct or indirect effects resulting from breakdown or failure of equipment in the operation of electric and gas distribution systems, such as mechanical problems and explosions or fires, and compliance with electric and gas transmission and distribution safety regulations, including regulations promulgated by the Pipeline and Hazardous Materials Safety Administration;

•issues related to the availability and operations of EGUs, including start-up risks, breakdown or failure of equipment, availability of warranty coverage for equipment breakdowns or failures, performance below expected or contracted levels of output or efficiency, operator error, employee safety, transmission constraints, compliance with mandatory reliability standards and risks related to recovery of resulting incremental operating, fuel-related and capital costs through rates;

•impacts that excessive heat, excessive cold, storms or natural disasters may have on Alliant Energy’s, IPL’s and WPL’s operations and recovery of costs associated with restoration activities or on the operations of Alliant Energy’s investments;

•Alliant Energy’s ability to sustain its dividend payout ratio goal;

•changes to costs of providing benefits and related funding requirements of pension and OPEB plans due to the market value of the assets that fund the plans, economic conditions, financial market performance, interest rates, timing and form of benefits payments, life expectancies and demographics;

•material changes in employee-related benefit and compensation ~~costs;~~costs, including settlement losses related to pension plans;

•risks associated with operation and ownership of non-utility holdings;

•changes in technology that alter the channels through which customers buy or utilize Alliant Energy’s, IPL’s or WPL’s products and services;

•impacts on equity income from unconsolidated investments from valuations and potential changes to ATC’s authorized return on equity;

•impacts of IPL’s future tax benefits from Iowa rate-making practices, including deductions for repairs expenditures, allocation of mixed service costs and state depreciation, and recoverability of the associated regulatory assets from customers, when the differences reverse in future periods;

•changes to the creditworthiness of counterparties with which Alliant Energy, IPL and WPL have contractual arrangements, including participants in the energy markets and fuel suppliers and transporters;

•current or future litigation, regulatory investigations, proceedings or inquiries;

•reputational damage from negative publicity, protests, fines, penalties and other negative consequences resulting in regulatory and/or legal actions;

•the effect of accounting standards issued periodically by standard-setting bodies;

•the ability to successfully complete tax audits and changes in tax accounting methods with no material impact on earnings and cash flows; and

•other factors listed in MDA and Risk Factors in Item 1A in the 2021 Form 10-K.

Alliant Energy, IPL and WPL each assume no obligation, and disclaim any duty, to update the forward-looking statements in this report, except as required by law.


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Table of Contents

PART I. FINANCIAL INFORMATION

ITEM 1. CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

ALLIANT ENERGY CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)


		For the Three Months			For the Three Months			For the Six Months
		Ended March 31,			Ended June 30,			Ended June 30,
		2022	2021				2022	2021	2022	2021
		(in millions, except per share amounts)		(in millions, except per share amounts)
Revenues:	Revenues:					Revenues:
Electric utility	Electric utility	$773	$701			Electric utility	$812	$717	$1,586	$1,418
Gas utility	Gas utility	262	170			Gas utility	94	69	356	239
Other utility	Other utility	11	13			Other utility	13	10	23	23
Non-utility	Non-utility	22	17			Non-utility	24	21	47	38
Total revenues	Total revenues	1,068	901			Total revenues	943	817	2,012	1,718
Operating expenses:	Operating expenses:					Operating expenses:
Electric production fuel and purchased power	Electric production fuel and purchased power	168	133			Electric production fuel and purchased power	191	138	359	271
Electric transmission service	Electric transmission service	138	134			Electric transmission service	133	121	271	255
Cost of gas sold	Cost of gas sold	168	100			Cost of gas sold	48	31	216	131
Other operation and maintenance	Other operation and maintenance	153	146			Other operation and maintenance	166	160	320	306
Depreciation and amortization	Depreciation and amortization	166	164			Depreciation and amortization	166	165	332	329
Taxes other than income taxes	Taxes other than income taxes	27	26			Taxes other than income taxes	27	26	54	52
Total operating expenses	Total operating expenses	820	703			Total operating expenses	731	641	1,552	1,344
Operating income	Operating income	248	198			Operating income	212	176	460	374
Other (income) and deductions:	Other (income) and deductions:					Other (income) and deductions:
Interest expense	Interest expense	74	69			Interest expense	78	69	152	138
Equity income from unconsolidated investments, net	Equity income from unconsolidated investments, net	(15)	(15)			Equity income from unconsolidated investments, net	(16)	(19)	(32)	(34)
Allowance for funds used during construction	Allowance for funds used during construction	(11)	(4)			Allowance for funds used during construction	(13)	(5)	(24)	(9)
Other	Other	—	2			Other	—	2	1	4
Total other (income) and deductions	Total other (income) and deductions	48	52			Total other (income) and deductions	49	47	97	99
Income before income taxes	Income before income taxes	200	146			Income before income taxes	163	129	363	275
Income tax expense (benefit)	Income tax expense (benefit)	8	(28)			Income tax expense (benefit)	4	(17)	12	(45)

Net income	Net income	192	174			Net income	159	146	351	320
Preferred dividend requirements of Interstate Power and Light Company	Preferred dividend requirements of Interstate Power and Light Company	—	3			Preferred dividend requirements of Interstate Power and Light Company	—	2	—	5
Net income attributable to Alliant Energy common shareowners	Net income attributable to Alliant Energy common shareowners	$192	$171			Net income attributable to Alliant Energy common shareowners	$159	$144	$351	$315
Weighted average number of common shares outstanding:	Weighted average number of common shares outstanding:					Weighted average number of common shares outstanding:
Basic	Basic	250.6	250.0			Basic	250.9	250.2	250.7	250.1
Diluted	Diluted	250.9	250.4			Diluted	251.1	250.6	251.0	250.5

Earnings per weighted average common share attributable to Alliant Energy common shareowners (basic and diluted)		$0.77	$0.68
Earnings per weighted average common share attributable to Alliant Energy common shareowners:						Earnings per weighted average common share attributable to Alliant Energy common shareowners:
Basic						Basic	$0.63	$0.58	$1.40	$1.26
Diluted						Diluted	$0.63	$0.57	$1.40	$1.26

Refer to accompanying Combined Notes to Condensed Consolidated Financial Statements.


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ALLIANT ENERGY CORPORATION

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)


		March 31, 2022	December 31, 2021		June 30, 2022	December 31, 2021
		(in millions, except per share and share amounts)			(in millions, except per share and share amounts)
ASSETS	ASSETS			ASSETS
Current assets:	Current assets:			Current assets:
Cash and cash equivalents	Cash and cash equivalents	$67	$39	Cash and cash equivalents	$19	$39
Accounts receivable, less allowance for expected credit losses	Accounts receivable, less allowance for expected credit losses	481	440	Accounts receivable, less allowance for expected credit losses	490	440

Production fuel, at weighted average cost	Production fuel, at weighted average cost	39	51	Production fuel, at weighted average cost	55	51
Gas stored underground, at weighted average cost	Gas stored underground, at weighted average cost	27	82	Gas stored underground, at weighted average cost	64	82
Materials and supplies, at weighted average cost	Materials and supplies, at weighted average cost	119	113	Materials and supplies, at weighted average cost	121	113
Regulatory assets	Regulatory assets	88	104	Regulatory assets	188	104

Other	Other	271	240	Other	371	240
Total current assets(a)	Total current assets(a)	1,092	1,069	Total current assets(a)	1,308	1,069
Property, plant and equipment, net(a)	Property, plant and equipment, net(a)	15,192	14,987	Property, plant and equipment, net(a)	15,453	14,987
Investments:	Investments:			Investments:
ATC Holdings	ATC Holdings	346	338	ATC Holdings	351	338
Other	Other	187	179	Other	195	179
Total investments	Total investments	533	517	Total investments	546	517
Other assets:	Other assets:			Other assets:
Regulatory assets	Regulatory assets	1,831	1,836	Regulatory assets	1,863	1,836
Deferred charges and other	Deferred charges and other	191	144	Deferred charges and other	221	144
Total other assets	Total other assets	2,022	1,980	Total other assets	2,084	1,980
Total assets	Total assets	$18,839	$18,553	Total assets	$19,391	$18,553


LIABILITIES AND EQUITY	LIABILITIES AND EQUITY			LIABILITIES AND EQUITY
Current liabilities:	Current liabilities:			Current liabilities:
Current maturities of long-term debt	Current maturities of long-term debt	$333	$633	Current maturities of long-term debt	$733	$633
Commercial paper	Commercial paper	276	515	Commercial paper	399	515

Accounts payable	Accounts payable	383	436	Accounts payable	584	436
Accrued taxes	Accrued taxes	66	58	Accrued taxes	58	58
Regulatory liabilities	Regulatory liabilities	251	186	Regulatory liabilities	218	186
Other	Other	212	226	Other	284	226
Total current liabilities	Total current liabilities	1,521	2,054	Total current liabilities	2,276	2,054
Long-term debt, net (excluding current portion)	Long-term debt, net (excluding current portion)	7,383	6,735	Long-term debt, net (excluding current portion)	6,981	6,735
Other liabilities:	Other liabilities:			Other liabilities:
Deferred tax liabilities	Deferred tax liabilities	1,958	1,927	Deferred tax liabilities	1,971	1,927
Regulatory liabilities	Regulatory liabilities	1,121	1,085	Regulatory liabilities	1,145	1,085
Pension and other benefit obligations	Pension and other benefit obligations	363	374	Pension and other benefit obligations	356	374
Other	Other	416	388	Other	496	388
Total other liabilities(a)	Total other liabilities(a)	3,858	3,774	Total other liabilities(a)	3,968	3,774
Commitments and contingencies (Note 12)		0	0
Commitments and contingencies (Note 1 3)				Commitments and contingencies (Note 1 3)	0	0
Equity:	Equity:			Equity:
Alliant Energy Corporation common equity:	Alliant Energy Corporation common equity:			Alliant Energy Corporation common equity:
Common stock - $0.01 par value - 480,000,000 shares authorized; 250,813,728 and 250,474,529 shares outstanding		3	3
Common stock - $0.01 par value - 480,000,000 shares authorized; 250,926,232 and 250,474,529 shares outstanding				Common stock - $0.01 par value - 480,000,000 shares authorized; 250,926,232 and 250,474,529 shares outstanding	3	3
Additional paid-in capital	Additional paid-in capital	2,750	2,749	Additional paid-in capital	2,759	2,749
Retained earnings	Retained earnings	3,336	3,250	Retained earnings	3,387	3,250

Shares in deferred compensation trust - 381,397 and 383,532 shares at a weighted average cost of $31.17 and $30.59 per share		(12)	(12)
Shares in deferred compensation trust - 388,363 and 383,532 shares at a weighted average cost of $31.72 and $30.59 per share				Shares in deferred compensation trust - 388,363 and 383,532 shares at a weighted average cost of $31.72 and $30.59 per share	(12)	(12)
Total Alliant Energy Corporation common equity	Total Alliant Energy Corporation common equity	6,077	5,990	Total Alliant Energy Corporation common equity	6,137	5,990

Noncontrolling interest				Noncontrolling interest	29	—
Total equity				Total equity	6,166	5,990
Total liabilities and equity	Total liabilities and equity	$18,839	$18,553	Total liabilities and equity	$19,391	$18,553

(a)As of June 30, 2022, Alliant Energy’s assets of a consolidated VIE that may be used only to settle obligations of that VIE include $1 million of current assets and $428 million of property, plant and equipment, net, and Alliant Energy’s liabilities of that VIE that creditors do not have recourse to include $8 million of other liabilities. Refer to Note 1(b) for additional information.

Refer to accompanying Combined Notes to Condensed Consolidated Financial Statements.


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ALLIANT ENERGY CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)


		For the Three Months			For the Six Months
		Ended March 31,			Ended June 30,
		2022	2021		2022	2021
		(in millions)			(in millions)
Cash flows from operating activities:	Cash flows from operating activities:			Cash flows from operating activities:
Net income	Net income	$192	$174	Net income	$351	$320
Adjustments to reconcile net income to net cash flows from operating activities:	Adjustments to reconcile net income to net cash flows from operating activities:			Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	Depreciation and amortization	166	164	Depreciation and amortization	332	329
Deferred tax expense (benefit) and tax credits	Deferred tax expense (benefit) and tax credits	18	(29)	Deferred tax expense (benefit) and tax credits	12	(42)

Other	Other	(6)	4	Other	(16)	2
Other changes in assets and liabilities:	Other changes in assets and liabilities:			Other changes in assets and liabilities:
Accounts receivable	Accounts receivable	(161)	(126)	Accounts receivable	(283)	(265)
Gas stored underground		55	20

Derivative assets	Derivative assets	(85)	6	Derivative assets	(183)	(68)
Regulatory assets	Regulatory assets	19	(4)	Regulatory assets	(116)	4
Accounts payable	Accounts payable	(37)	(6)	Accounts payable	95	11
Regulatory liabilities	Regulatory liabilities	92	(60)	Regulatory liabilities	74	(69)
Derivative liabilities				Derivative liabilities	86	(22)
Deferred income taxes	Deferred income taxes	15	58	Deferred income taxes	34	93

Pension and other benefit obligations				Pension and other benefit obligations	(18)	(34)
Other	Other	(17)	(56)	Other	(68)	(52)
Net cash flows from operating activities	Net cash flows from operating activities	251	145	Net cash flows from operating activities	300	207
Cash flows used for investing activities:	Cash flows used for investing activities:			Cash flows used for investing activities:
Construction and acquisition expenditures:	Construction and acquisition expenditures:			Construction and acquisition expenditures:
Utility business	Utility business	(307)	(214)	Utility business	(550)	(426)
Other	Other	(23)	(17)	Other	(43)	(32)
Cash receipts on sold receivables	Cash receipts on sold receivables	115	209	Cash receipts on sold receivables	233	295
Other	Other	(8)	(16)	Other	(10)	(27)
Net cash flows used for investing activities	Net cash flows used for investing activities	(223)	(38)	Net cash flows used for investing activities	(370)	(190)
Cash flows from (used for) financing activities:	Cash flows from (used for) financing activities:			Cash flows from (used for) financing activities:
Common stock dividends	Common stock dividends	(107)	(102)	Common stock dividends	(215)	(203)

Proceeds from issuance of long-term debt	Proceeds from issuance of long-term debt	650	—	Proceeds from issuance of long-term debt	650	—
Payments to retire long-term debt	Payments to retire long-term debt	(300)	—	Payments to retire long-term debt	(304)	(4)
Net change in commercial paper	Net change in commercial paper	(239)	(53)	Net change in commercial paper	(116)	146
Contributions from noncontrolling interest				Contributions from noncontrolling interest	29	—

Other	Other	(1)	10	Other	6	4
Net cash flows from (used for) financing activities	Net cash flows from (used for) financing activities	3	(145)	Net cash flows from (used for) financing activities	50	(57)
Net increase (decrease) in cash, cash equivalents and restricted cash		31	(38)
Net decrease in cash, cash equivalents and restricted cash				Net decrease in cash, cash equivalents and restricted cash	(20)	(40)
Cash, cash equivalents and restricted cash at beginning of period	Cash, cash equivalents and restricted cash at beginning of period	40	56	Cash, cash equivalents and restricted cash at beginning of period	40	56
Cash, cash equivalents and restricted cash at end of period	Cash, cash equivalents and restricted cash at end of period	$71	$18	Cash, cash equivalents and restricted cash at end of period	$20	$16
Supplemental cash flows information:	Supplemental cash flows information:			Supplemental cash flows information:
Cash paid during the period for:	Cash paid during the period for:			Cash paid during the period for:
Interest	Interest	($62)	($59)	Interest	($146)	($137)

Income taxes, net				Income taxes, net	($4)	($1)
Significant non-cash investing and financing activities:	Significant non-cash investing and financing activities:			Significant non-cash investing and financing activities:
Accrued capital expenditures	Accrued capital expenditures	$134	$64	Accrued capital expenditures	$200	$139
Beneficial interest obtained in exchange for securitized accounts receivable	Beneficial interest obtained in exchange for securitized accounts receivable	$227	$107	Beneficial interest obtained in exchange for securitized accounts receivable	$244	$154

Refer to accompanying Combined Notes to Condensed Consolidated Financial Statements.


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Table of Contents

INTERSTATE POWER AND LIGHT COMPANY

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)


		For the Three Months			For the Three Months			For the Six Months
		Ended March 31,			Ended June 30,			Ended June 30,
		2022	2021				2022	2021	2022	2021
		(in millions)		(in millions)
Revenues:	Revenues:					Revenues:
Electric utility	Electric utility	$400	$386			Electric utility	$442	$402	$843	$788
Gas utility	Gas utility	139	91			Gas utility	52	43	191	134
Steam and other	Steam and other	11	12			Steam and other	12	10	22	22
Total revenues	Total revenues	550	489			Total revenues	506	455	1,056	944
Operating expenses:	Operating expenses:					Operating expenses:
Electric production fuel and purchased power	Electric production fuel and purchased power	67	59			Electric production fuel and purchased power	83	55	150	114
Electric transmission service	Electric transmission service	97	92			Electric transmission service	91	79	188	171
Cost of gas sold	Cost of gas sold	85	50			Cost of gas sold	27	22	112	72
Other operation and maintenance	Other operation and maintenance	83	77			Other operation and maintenance	87	81	171	158
Depreciation and amortization	Depreciation and amortization	94	94			Depreciation and amortization	95	93	189	187
Taxes other than income taxes	Taxes other than income taxes	14	14			Taxes other than income taxes	14	14	28	28
Total operating expenses	Total operating expenses	440	386			Total operating expenses	397	344	838	730
Operating income	Operating income	110	103			Operating income	109	111	218	214
Other (income) and deductions:	Other (income) and deductions:					Other (income) and deductions:
Interest expense	Interest expense	37	35			Interest expense	37	34	74	69
Allowance for funds used during construction	Allowance for funds used during construction	(3)	(2)			Allowance for funds used during construction	(3)	(3)	(5)	(5)

Other						Other	—	2	(1)	2
Total other (income) and deductions	Total other (income) and deductions	34	33			Total other (income) and deductions	34	33	68	66
Income before income taxes	Income before income taxes	76	70			Income before income taxes	75	78	150	148
Income tax benefit	Income tax benefit	(11)	(12)			Income tax benefit	(12)	(10)	(23)	(22)
Net income	Net income	87	82			Net income	87	88	173	170
Preferred dividend requirements	Preferred dividend requirements	—	3			Preferred dividend requirements	—	2	—	5
Net income available for common stock	Net income available for common stock	$87	$79			Net income available for common stock	$87	$86	$173	$165

Earnings per share data is not disclosed given Alliant Energy Corporation is the sole shareowner of all shares of IPL’s common stock outstanding during the periods presented.

Refer to accompanying Combined Notes to Condensed Consolidated Financial Statements.


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Table of Contents

INTERSTATE POWER AND LIGHT COMPANY

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)


		March 31, 2022	December 31, 2021		June 30, 2022	December 31, 2021
		(in millions, except per share and share amounts)			(in millions, except per share and share amounts)
ASSETS	ASSETS			ASSETS
Current assets:	Current assets:			Current assets:
Cash and cash equivalents	Cash and cash equivalents	$62	$34	Cash and cash equivalents	$13	$34
Accounts receivable, less allowance for expected credit losses	Accounts receivable, less allowance for expected credit losses	257	241	Accounts receivable, less allowance for expected credit losses	269	241
Income tax refunds receivable	Income tax refunds receivable	25	8	Income tax refunds receivable	8	8
Production fuel, at weighted average cost	Production fuel, at weighted average cost	28	29	Production fuel, at weighted average cost	37	29
Gas stored underground, at weighted average cost	Gas stored underground, at weighted average cost	11	40	Gas stored underground, at weighted average cost	27	40
Materials and supplies, at weighted average cost	Materials and supplies, at weighted average cost	71	70	Materials and supplies, at weighted average cost	73	70
Regulatory assets	Regulatory assets	60	73	Regulatory assets	111	73
Other	Other	85	69	Other	149	69
Total current assets	Total current assets	599	564	Total current assets	687	564
Property, plant and equipment, net	Property, plant and equipment, net	7,976	7,983	Property, plant and equipment, net	7,997	7,983
Other assets:	Other assets:			Other assets:
Regulatory assets	Regulatory assets	1,372	1,370	Regulatory assets	1,379	1,370
Deferred charges and other	Deferred charges and other	103	79	Deferred charges and other	121	79
Total other assets	Total other assets	1,475	1,449	Total other assets	1,500	1,449
Total assets	Total assets	$10,050	$9,996	Total assets	$10,184	$9,996


LIABILITIES AND EQUITY	LIABILITIES AND EQUITY			LIABILITIES AND EQUITY
Current liabilities:	Current liabilities:			Current liabilities:

Accounts payable	Accounts payable	$135	$173	Accounts payable	$225	$173
Accounts payable to associated companies	Accounts payable to associated companies	46	39	Accounts payable to associated companies	37	39
Regulatory liabilities	Regulatory liabilities	122	84	Regulatory liabilities	100	84
Accrued taxes	Accrued taxes	57	56	Accrued taxes	51	56
Accrued interest	Accrued interest	35	36	Accrued interest	35	36
Other	Other	62	67	Other	115	67
Total current liabilities	Total current liabilities	457	455	Total current liabilities	563	455
Long-term debt, net	Long-term debt, net	3,644	3,643	Long-term debt, net	3,645	3,643
Other liabilities:	Other liabilities:			Other liabilities:
Deferred tax liabilities	Deferred tax liabilities	1,107	1,083	Deferred tax liabilities	1,106	1,083
Regulatory liabilities	Regulatory liabilities	632	607	Regulatory liabilities	651	607
Pension and other benefit obligations	Pension and other benefit obligations	124	127	Pension and other benefit obligations	121	127
Other	Other	311	312	Other	316	312
Total other liabilities	Total other liabilities	2,174	2,129	Total other liabilities	2,194	2,129
Commitments and contingencies (Note 12)		0	0
Commitments and contingencies (Note 1 3)				Commitments and contingencies (Note 1 3)	0	0
Equity:	Equity:			Equity:
Interstate Power and Light Company common equity:	Interstate Power and Light Company common equity:			Interstate Power and Light Company common equity:
Common stock - $2.50 par value - 24,000,000 shares authorized; 13,370,788 shares outstanding	Common stock - $2.50 par value - 24,000,000 shares authorized; 13,370,788 shares outstanding	33	33	Common stock - $2.50 par value - 24,000,000 shares authorized; 13,370,788 shares outstanding	33	33
Additional paid-in capital	Additional paid-in capital	2,807	2,807	Additional paid-in capital	2,807	2,807
Retained earnings	Retained earnings	935	929	Retained earnings	942	929
Total Interstate Power and Light Company common equity	Total Interstate Power and Light Company common equity	3,775	3,769	Total Interstate Power and Light Company common equity	3,782	3,769

Total liabilities and equity	Total liabilities and equity	$10,050	$9,996	Total liabilities and equity	$10,184	$9,996

Refer to accompanying Combined Notes to Condensed Consolidated Financial Statements.


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Table of Contents

INTERSTATE POWER AND LIGHT COMPANY

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)


		For the Three Months			For the Six Months
		Ended March 31,			Ended June 30,
		2022	2021		2022	2021
		(in millions)			(in millions)
Cash flows from (used for) operating activities:
Cash flows from operating activities:				Cash flows from operating activities:
Net income	Net income	$87	$82	Net income	$173	$170
Adjustments to reconcile net income to net cash flows from (used for) operating activities:
Adjustments to reconcile net income to net cash flows from operating activities:				Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	Depreciation and amortization	94	94	Depreciation and amortization	189	187

Deferred tax expense (benefit) and tax credits		15	(2)

Other	Other	(2)	(1)	Other	(9)	(13)
Other changes in assets and liabilities:	Other changes in assets and liabilities:			Other changes in assets and liabilities:
Accounts receivable	Accounts receivable	(128)	(133)	Accounts receivable	(256)	(270)
Income tax refunds receivable		(17)	(3)
Gas stored underground		29	12

Derivative assets	Derivative assets	(43)	10	Derivative assets	(123)	(27)
Regulatory assets	Regulatory assets	9	(16)	Regulatory assets	(52)	(14)

Accounts payable				Accounts payable	67	1
Regulatory liabilities	Regulatory liabilities	59	(19)	Regulatory liabilities	53	(36)

Derivative liabilities				Derivative liabilities	63	(11)
Deferred income taxes				Deferred income taxes	24	30

Other	Other	(14)	(69)	Other	(46)	1
Net cash flows from (used for) operating activities		89	(45)
Net cash flows from operating activities				Net cash flows from operating activities	83	18
Cash flows from investing activities:	Cash flows from investing activities:			Cash flows from investing activities:
Construction and acquisition expenditures	Construction and acquisition expenditures	(96)	(106)	Construction and acquisition expenditures	(172)	(191)
Cash receipts on sold receivables	Cash receipts on sold receivables	115	209	Cash receipts on sold receivables	233	295
Other	Other	(1)	(5)	Other	(1)	(6)
Net cash flows from investing activities	Net cash flows from investing activities	18	98	Net cash flows from investing activities	60	98
Cash flows used for financing activities:	Cash flows used for financing activities:			Cash flows used for financing activities:
Common stock dividends	Common stock dividends	(81)	(101)	Common stock dividends	(160)	(200)

Capital contributions from parent				Capital contributions from parent	—	50

Other	Other	2	9	Other	(4)	(5)
Net cash flows used for financing activities	Net cash flows used for financing activities	(79)	(92)	Net cash flows used for financing activities	(164)	(155)
Net increase (decrease) in cash, cash equivalents and restricted cash		28	(39)
Net decrease in cash, cash equivalents and restricted cash				Net decrease in cash, cash equivalents and restricted cash	(21)	(39)
Cash, cash equivalents and restricted cash at beginning of period	Cash, cash equivalents and restricted cash at beginning of period	34	50	Cash, cash equivalents and restricted cash at beginning of period	34	50
Cash, cash equivalents and restricted cash at end of period	Cash, cash equivalents and restricted cash at end of period	$62	$11	Cash, cash equivalents and restricted cash at end of period	$13	$11
Supplemental cash flows information:	Supplemental cash flows information:			Supplemental cash flows information:
Cash (paid) refunded during the period for:	Cash (paid) refunded during the period for:			Cash (paid) refunded during the period for:
Interest	Interest	($37)	($37)	Interest	($74)	($69)
Income taxes, net	Income taxes, net	$—	$7	Income taxes, net	$19	$27
Significant non-cash investing and financing activities:	Significant non-cash investing and financing activities:			Significant non-cash investing and financing activities:
Accrued capital expenditures	Accrued capital expenditures	$27	$31	Accrued capital expenditures	$45	$32
Beneficial interest obtained in exchange for securitized accounts receivable	Beneficial interest obtained in exchange for securitized accounts receivable	$227	$107	Beneficial interest obtained in exchange for securitized accounts receivable	$244	$154

Refer to accompanying Combined Notes to Condensed Consolidated Financial Statements.


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Table of Contents

WISCONSIN POWER AND LIGHT COMPANY

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)


		For the Three Months			For the Three Months			For the Six Months
		Ended March 31,			Ended June 30,			Ended June 30,
		2022	2021				2022	2021	2022	2021
		(in millions)		(in millions)
Revenues:	Revenues:					Revenues:
Electric utility	Electric utility	$373	$315			Electric utility	$370	$315	$743	$630
Gas utility	Gas utility	123	79			Gas utility	42	26	165	105
Other	Other	—	1			Other	1	—	1	1
Total revenues	Total revenues	496	395			Total revenues	413	341	909	736
Operating expenses:	Operating expenses:					Operating expenses:
Electric production fuel and purchased power	Electric production fuel and purchased power	101	74			Electric production fuel and purchased power	108	84	209	158
Electric transmission service	Electric transmission service	41	42			Electric transmission service	41	42	83	84
Cost of gas sold	Cost of gas sold	83	50			Cost of gas sold	21	9	104	59
Other operation and maintenance	Other operation and maintenance	58	59			Other operation and maintenance	67	69	123	128
Depreciation and amortization	Depreciation and amortization	70	69			Depreciation and amortization	69	70	139	139
Taxes other than income taxes	Taxes other than income taxes	12	11			Taxes other than income taxes	12	12	24	23
Total operating expenses	Total operating expenses	365	305			Total operating expenses	318	286	682	591
Operating income	Operating income	131	90			Operating income	95	55	227	145
Other (income) and deductions:	Other (income) and deductions:					Other (income) and deductions:
Interest expense	Interest expense	27	26			Interest expense	28	26	55	52

Allowance for funds used during construction	Allowance for funds used during construction	(9)	(2)			Allowance for funds used during construction	(10)	(2)	(18)	(4)
Other	Other	—	1			Other	—	—	—	1
Total other (income) and deductions	Total other (income) and deductions	18	25			Total other (income) and deductions	18	24	37	49
Income before income taxes	Income before income taxes	113	65			Income before income taxes	77	31	190	96
Income tax expense (benefit)	Income tax expense (benefit)	21	(19)			Income tax expense (benefit)	14	(7)	34	(26)
Net income	Net income	$92	$84			Net income	$63	$38	$156	$122

Earnings per share data is not disclosed given Alliant Energy Corporation is the sole shareowner of all shares of WPL’s common stock outstanding during the periods presented.

Refer to accompanying Combined Notes to Condensed Consolidated Financial Statements.


			9

Table of Contents

WISCONSIN POWER AND LIGHT COMPANY

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)

March 31,
2022 December 31,
2021
(in millions, except per
share and share amounts)
ASSETS
Current assets:
Cash and cash equivalents $4 $2
Accounts receivable, less allowance for expected credit losses 211 188
Production fuel, at weighted average cost 11 23
Gas stored underground, at weighted average cost 16 42
Materials and supplies, at weighted average cost 45 41
Regulatory assets 28 31
Prepaid gross receipts tax 30 40
Other 102 86
Total current assets 447 453
Property, plant and equipment, net 6,747 6,538
Other assets:
Regulatory assets 459 466
Deferred charges and other 90 61
Total other assets 549 527
Total assets $7,743 $7,518
LIABILITIES AND EQUITY
Current liabilities:
Current maturities of long-term debt $250 $250
Commercial paper 157 236
Accounts payable 185 190
Accounts payable to associated companies 34 39
Regulatory liabilities 129 102
Other 102 73
Total current liabilities 857 890
Long-term debt, net (excluding current portion) 2,180 2,179
Other liabilities:
Deferred tax liabilities 759 753
Regulatory liabilities 489 478
Pension and other benefit obligations 154 159
Other 253 236
Total other liabilities 1,655 1,626
Commitments and contingencies (Note 12)
0 0
Equity:
Wisconsin Power and Light Company common equity:
Common stock - $5 par value - 18,000,000 shares authorized; 13,236,601 shares outstanding 66 66
Additional paid-in capital 1,884 1,704
Retained earnings 1,101 1,053
Total Wisconsin Power and Light Company common equity 3,051 2,823
Total liabilities and equity $7,743 $7,518


	June 30, 2022	December 31, 2021
	(in millions, except per share and share amounts)
ASSETS
Current assets:
Cash and cash equivalents	$4	$2
Accounts receivable, less allowance for expected credit losses	208	188
Production fuel, at weighted average cost	18	23
Gas stored underground, at weighted average cost	37	42
Materials and supplies, at weighted average cost	46	41
Regulatory assets	77	31
Prepaid gross receipts tax	40	40
Other	113	86
Total current assets (a)	543	453
Property, plant and equipment, net (a)	6,985	6,538
Other assets:
Regulatory assets	484	466
Deferred charges and other	106	61
Total other assets	590	527
Total assets	$8,118	$7,518


LIABILITIES AND EQUITY
Current liabilities:
Current maturities of long-term debt	$250	$250
Commercial paper	222	236

Accounts payable	300	190
Accounts payable to associated companies	20	39
Regulatory liabilities	118	102
Other	99	73
Total current liabilities	1,009	890
Long-term debt, net (excluding current portion)	2,180	2,179
Other liabilities:
Deferred tax liabilities	774	753
Regulatory liabilities	494	478

Pension and other benefit obligations	151	159
Other	327	236
Total other liabilities (a)	1,746	1,626
Commitments and contingencies (Note 1 3)	0	0
Equity:
Wisconsin Power and Light Company common equity:
Common stock - $5 par value - 18,000,000 shares authorized; 13,236,601 shares outstanding	66	66
Additional paid-in capital	1,968	1,704
Retained earnings	1,120	1,053
Total Wisconsin Power and Light Company common equity	3,154	2,823
Noncontrolling interest	29	—
Total equity	3,183	2,823
Total liabilities and equity	$8,118	$7,518

(a)As of June 30, 2022, WPL’s assets of a consolidated VIE that may be used only to settle obligations of that VIE include $1 million of current assets and $428 million of property, plant and equipment, net, and WPL’s liabilities of that VIE that creditors do not have recourse to include $8 million of other liabilities. Refer to Note 1(b) for additional information.

Refer to accompanying Combined Notes to Condensed Consolidated Financial Statements.


			10

Table of Contents

WISCONSIN POWER AND LIGHT COMPANY

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)


		For the Three Months			For the Six Months
		Ended March 31,			Ended June 30,
		2022	2021		2022	2021
		(in millions)			(in millions)
Cash flows from operating activities:	Cash flows from operating activities:			Cash flows from operating activities:
Net income	Net income	$92	$84	Net income	$156	$122
Adjustments to reconcile net income to net cash flows from operating activities:	Adjustments to reconcile net income to net cash flows from operating activities:			Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	Depreciation and amortization	70	69	Depreciation and amortization	139	139
Deferred tax benefit and tax credits		(2)	(28)
Deferred tax expense (benefit) and tax credits				Deferred tax expense (benefit) and tax credits	10	(35)
Other	Other	(3)	4	Other	(6)	10
Other changes in assets and liabilities:	Other changes in assets and liabilities:			Other changes in assets and liabilities:
Accounts receivable	Accounts receivable	(23)	9	Accounts receivable	(17)	9
Gas stored underground		26	9

Derivative assets	Derivative assets	(42)	(4)	Derivative assets	(60)	(41)

Regulatory assets				Regulatory assets	(65)	17
Accounts payable	Accounts payable	(24)	(24)	Accounts payable	38	1
Regulatory liabilities	Regulatory liabilities	32	(41)	Regulatory liabilities	20	(33)
Accrued taxes		21	8

Derivative liabilities				Derivative liabilities	23	(12)
Deferred income taxes	Deferred income taxes	8	44	Deferred income taxes	11	63
Other	Other	12	18	Other	(51)	(40)
Net cash flows from operating activities	Net cash flows from operating activities	167	148	Net cash flows from operating activities	198	200
Cash flows used for investing activities:	Cash flows used for investing activities:			Cash flows used for investing activities:
Construction and acquisition expenditures	Construction and acquisition expenditures	(212)	(108)	Construction and acquisition expenditures	(378)	(235)
Other	Other	(5)	(11)	Other	(6)	(18)
Net cash flows used for investing activities	Net cash flows used for investing activities	(217)	(119)	Net cash flows used for investing activities	(384)	(253)
Cash flows from (used for) financing activities:
Cash flows from financing activities:				Cash flows from financing activities:
Common stock dividends	Common stock dividends	(44)	(42)	Common stock dividends	(89)	(85)
Capital contributions from parent	Capital contributions from parent	180	125	Capital contributions from parent	265	210

Net change in commercial paper	Net change in commercial paper	(79)	(109)	Net change in commercial paper	(14)	(65)
Contributions from noncontrolling interest				Contributions from noncontrolling interest	29	—

Other	Other	(5)	(4)	Other	(3)	(7)
Net cash flows from (used for) financing activities		52	(30)
Net increase (decrease) in cash, cash equivalents and restricted cash		2	(1)
Net cash flows from financing activities				Net cash flows from financing activities	188	53
Net increase in cash, cash equivalents and restricted cash				Net increase in cash, cash equivalents and restricted cash	2	—
Cash, cash equivalents and restricted cash at beginning of period	Cash, cash equivalents and restricted cash at beginning of period	2	3	Cash, cash equivalents and restricted cash at beginning of period	2	3
Cash, cash equivalents and restricted cash at end of period	Cash, cash equivalents and restricted cash at end of period	$4	$2	Cash, cash equivalents and restricted cash at end of period	$4	$3
Supplemental cash flows information:	Supplemental cash flows information:			Supplemental cash flows information:
Cash paid during the period for:	Cash paid during the period for:			Cash paid during the period for:
Interest	Interest	($23)	($21)	Interest	($54)	($52)

Income taxes, net				Income taxes, net	($31)	($27)
Significant non-cash investing and financing activities:	Significant non-cash investing and financing activities:			Significant non-cash investing and financing activities:
Accrued capital expenditures	Accrued capital expenditures	$104	$32	Accrued capital expenditures	$150	$104

Refer to accompanying Combined Notes to Condensed Consolidated Financial Statements.


			11

Table of Contents

ALLIANT ENERGY CORPORATION

INTERSTATE POWER AND LIGHT COMPANY

WISCONSIN POWER AND LIGHT COMPANY

COMBINED NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

NOTE 1(a) General - The interim unaudited Financial Statements included herein have been prepared pursuant to the rules and regulations of the SEC. Accordingly, certain information and note disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted, although management believes that the disclosures are adequate to make the information presented not misleading. These Financial Statements should be read in conjunction with the financial statements and the notes thereto included in the 2021 Form 10-K.

In the opinion of management, all adjustments, which unless otherwise noted are normal and recurring in nature, necessary for a fair presentation of the results of operations, financial position and cash flows have been made. Results for the ~~three~~six months ended ~~March 31,~~June 30, 2022 are not necessarily indicative of results that may be expected for the year ending December 31, 2022.

A change in management’s estimates or assumptions could have a material impact on financial condition and results of operations during the period in which such change occurred. Certain prior period amounts in the Financial Statements and Notes have been reclassified to conform to the current period presentation for comparative purposes.

~~NOTE~~Note 1(b) ~~Cash, Cash Equivalents~~Variable Interest Entities (VIEs) - A portion of WPL’s solar generation projects is financed, and ~~Restricted Cash -~~ ~~At March 31, 2022, Alliant Energy’s and IPL’s cash and cash equivalents included $59 million of money market fund investments,~~is expected to be financed, with ~~an interest rate of 0.3%.~~capital from tax equity partners through joint ventures.

In 2022, WPL 2022 Solar Holdco, LLC was formed as a joint venture to own and operate project companies responsible for the construction, ownership and operation of various solar generation assets. Members of the joint venture are a WPL subsidiary (the managing member) and a tax equity partner. In June 2022, the WPL subsidiary and the tax equity partner contributed $62 million and $29 million, respectively, to WPL 2022 Solar Holdco, LLC in exchange for membership interests. In June 2022, $88 million of the contributed funds were paid to WPL in exchange for equity interests in the project companies. Once asset construction is complete, the WPL subsidiary and the tax equity partner will make additional cash contributions based on the fair value of the solar generation assets. Earnings, tax attributes, and cash flows from the joint venture will be allocated to both the WPL subsidiary and the tax equity partner in varying percentages over the life of the partnership. Once the tax equity partner has earned its negotiated rate of return and the agreed upon contractual date has been reached, WPL has the option to purchase the remaining interest in the joint venture from the tax equity partner at fair value.

Alliant Energy and WPL consolidate this joint venture as it is a VIE in which WPL holds a variable interest, and WPL controls decisions that are significant to the joint venture’s ongoing operations and economic results (i.e., WPL is the primary beneficiary).

The joint venture is subject to profit sharing arrangements in which the allocation of the joint venture’s cash distributions and tax benefits to members is based on factors other than members' relative ownership percentages. As a result, WPL utilizes the Hypothetical Liquidation at Book Value (HLBV) method to allocate proceeds to each partner at the balance sheet date based on the liquidation provisions of the related joint venture's operating agreement and to adjust the amount of the VIE's net income attributable to Alliant Energy and WPL, as well as the noncontrolling interest during the period.

In each reporting period, the application of HLBV to WPL’s consolidated VIE results in a difference between the amount of profit from the consolidated joint venture and the amount included in WPL’s regulated rates. WPL is subject to GAAP provisions for regulated operations and recognizes a regulatory liability or regulatory asset for amounts representing the timing difference between WPL’s profit earned from the joint venture and the amount included in regulated rates for recovery of its solar generation projects. The amounts recorded in income will ultimately reflect the amount allowed in regulated rates to recover WPL’s investments over the useful life of the solar projects.

Refer to Note 6 for discussion of a noncontrolling interest associated with the joint venture.


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NOTE 2. REGULATORY MATTERS

Regulatory Assets and Regulatory Liabilities -

Regulatory assets were comprised of the following items (in millions):


		Alliant Energy		IPL		WPL			Alliant Energy		IPL		WPL
		March 31, 2022	December 31, 2021	March 31, 2022	December 31, 2021	March 31, 2022	December 31, 2021		June 30, 2022	December 31, 2021	June 30, 2022	December 31, 2021	June 30, 2022	December 31, 2021
Tax-related	Tax-related	$949	$934	$896	$884	$53	$50	Tax-related	$954	$934	$903	$884	$51	$50
Pension and OPEB costs	Pension and OPEB costs	453	462	224	228	229	234	Pension and OPEB costs	445	462	220	228	225	234
Asset retirement obligations	Asset retirement obligations	134	128	94	89	40	39	Asset retirement obligations	140	128	99	89	41	39
Derivatives								Derivatives	101	8	69	4	32	4
Commodity cost recovery								Commodity cost recovery	88	42	2	2	86	40
Assets retired early	Assets retired early	88	92	64	66	24	26	Assets retired early	82	92	61	66	21	26
IPL’s DAEC PPA amendment	IPL’s DAEC PPA amendment	84	90	84	90	—	—	IPL’s DAEC PPA amendment	78	90	78	90	—	—
WPL’s Western Wisconsin gas distribution expansion investments	WPL’s Western Wisconsin gas distribution expansion investments	50	52	—	—	50	52	WPL’s Western Wisconsin gas distribution expansion investments	50	52	—	—	50	52
Commodity cost recovery		42	42	2	2	40	40

Other	Other	119	140	68	84	51	56	Other	113	132	58	80	55	52
		$1,919	$1,940	$1,432	$1,443	$487	$497		$2,051	$1,940	$1,490	$1,443	$561	$497

Derivatives - Refer to Note 1 1 for discussion of changes in Alliant Energy’s, IPL’s and WPL’s derivative liabilities/assets during the three and six months ended June 30, 2022, which result in comparable changes to regulatory assets/liabilities on the balance sheets.

Commodity cost recovery - The cost recovery mechanism for WPL’s retail electric customers is based on forecasts of certain fuel-related costs expected to be incurred during forward-looking test periods and fuel monitoring ranges determined by the PSCW during each retail electric rate proceeding or in a separate fuel cost plan approval proceeding. During the six months ended June 30, 2022, WPL’s actual fuel-related costs fell outside these fuel monitoring ranges, resulting in a $40 million deferral of higher than expected fuel-related costs as of June 30, 2022.

Regulatory liabilities were comprised of the following items (in millions):


		Alliant Energy		IPL		WPL			Alliant Energy		IPL		WPL
		March 31, 2022	December 31, 2021	March 31, 2022	December 31, 2021	March 31, 2022	December 31, 2021		June 30, 2022	December 31, 2021	June 30, 2022	December 31, 2021	June 30, 2022	December 31, 2021
Tax-related	Tax-related	$578	$585	$310	$312	$268	$273	Tax-related	$573	$585	$308	$312	$265	$273
Cost of removal obligations	Cost of removal obligations	391	384	256	252	135	132	Cost of removal obligations	396	384	258	252	138	132
Derivatives	Derivatives	258	166	125	77	133	89	Derivatives	288	166	153	77	135	89
WPL’s West Riverside liquidated damages								WPL’s West Riverside liquidated damages	34	36	—	—	34	36
Electric transmission cost recovery	Electric transmission cost recovery	50	51	29	27	21	24	Electric transmission cost recovery	31	51	11	27	20	24
WPL’s West Riverside liquidated damages		35	36	—	—	35	36

Other	Other	60	49	34	23	26	26	Other	41	49	21	23	20	26
		$1,372	$1,271	$754	$691	$618	$580		$1,363	$1,271	$751	$691	$612	$580

NOTE 3. PROPERTY, PLANT AND EQUIPMENT

In June 2022, WPL announced revised expected timing for the retirements of its remaining coal-fired EGUs in order to help manage regional capacity and changing generation requirements across the MISO region. WPL currently expects to retire the Edgewater Generating Station (414 MW) by June 1, 2025, and Columbia Units 1 and 2 by June 1, 2026 (595 MW in aggregate). In addition, IPL currently expects to retire the coal-fired Lansing Generating Station (275 MW) in the first half of 2023. Alliant Energy, IPL and WPL are working with MISO, state regulatory commissions and other regulatory agencies, as required, to determine the timing of these actions, which are subject to change depending on operational, regulatory, market and other factors.


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NOTE 3.4. RECEIVABLES

Sales of Accounts Receivable - IPL maintains a Receivables Purchase and Sale Agreement (Receivables Agreement) whereby it may sell its customer accounts receivables, unbilled revenues and certain other accounts receivables to a third party through wholly-owned and consolidated special purpose entities. The transfers of receivables meet the criteria for sale accounting established by the transfer of financial assets accounting rules. As of ~~March 31,~~June 30, 2022, IPL had ~~$109~~$95 million of available capacity under its sales of accounts receivable program. IPL’s maximum and average outstanding cash proceeds (based on daily outstanding balances) related to the sales of accounts receivable program for the three and six months ended ~~March 31~~June 30 were as follows (in millions):


				Three Months		Six Months
		2022	2021			2022	2021	2022	2021
Maximum outstanding aggregate cash proceeds	Maximum outstanding aggregate cash proceeds	$36	$100		Maximum outstanding aggregate cash proceeds	$66	$110	$66	$110
Average outstanding aggregate cash proceeds	Average outstanding aggregate cash proceeds	4	30		Average outstanding aggregate cash proceeds	18	61	11	46

The attributes of IPL’s receivables sold under the Receivables Agreement were as follows (in millions):


		March 31, 2022	December 31, 2021		June 30, 2022	December 31, 2021
Customer accounts receivable	Customer accounts receivable	$142	$125	Customer accounts receivable	$150	$125
Unbilled utility revenues	Unbilled utility revenues	96	104	Unbilled utility revenues	119	104

Receivables sold to third party	Receivables sold to third party	238	229	Receivables sold to third party	269	229
Less: cash proceeds	Less: cash proceeds	1	1	Less: cash proceeds	15	1
Deferred proceeds	Deferred proceeds	237	228	Deferred proceeds	254	228
Less: allowance for expected credit losses	Less: allowance for expected credit losses	10	14	Less: allowance for expected credit losses	10	14
Fair value of deferred proceeds	Fair value of deferred proceeds	$227	$214	Fair value of deferred proceeds	$244	$214

As of ~~March 31,~~June 30, 2022, outstanding receivables past due under the Receivables Agreement were ~~$24~~$20 million. Additional attributes of IPL’s receivables sold under the Receivables Agreement for the three and six months ended ~~March 31~~June 30 were as follows (in millions):


				Three Months		Six Months
		2022	2021			2022	2021	2022	2021
Collections	Collections	$561	$529		Collections	$500	$453	$1,061	$982
Write-offs, net of recoveries	Write-offs, net of recoveries	2	2		Write-offs, net of recoveries	1	1	3	3

NOTE 4.5. INVESTMENTS

Unconsolidated Equity Investments - Alliant Energy’s equity (income) loss from unconsolidated investments accounted for under the equity method of accounting for the three and six months ended ~~March 31~~June 30 was as follows (in millions):


				Three Months		Six Months
		2022	2021			2022	2021	2022	2021
ATC Holdings	ATC Holdings	($11)	($11)		ATC Holdings	($11)	($11)	($23)	($22)

Other	Other	(4)	(4)		Other	(5)	(8)	(9)	(12)
		($15)	($15)			($16)	($19)	($32)	($34)

NOTE 5.6. COMMON EQUITY

Common Share Activity - A summary of Alliant Energy’s common stock activity was as follows:


Shares outstanding, January 1, 2022			250,474,529


Shareowner Direct Plan			~~116,431~~228,935
Equity-based compensation plans			222,768

Shares outstanding, ~~March 31,~~June 30, 2022			~~250,813,728~~250,926,232

Noncontrolling Interest - In the second quarter of 2022, WPL and the tax equity partner contributed to the joint venture associated with certain WPL solar generation projects. Earnings, tax attributes and cash flows from the joint venture will be allocated to both the WPL subsidiary and the tax equity partner in varying percentages by category and over the life of the partnership. The tax equity partner's contributions, net of these allocations, is represented as a noncontrolling interest within total equity on Alliant Energy’s and WPL’s balance sheets. Refer to Note 1(b) for additional information.


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Changes in Shareowners’ Equity - A summary of changes in shareowners’ equity was as follows (in millions):


Alliant Energy	Alliant Energy	Total Alliant Energy Common Equity							Alliant Energy	Total Alliant Energy Common Equity
					Accumulated	Shares in	Cumulative						Accumulated	Shares in
			Additional		Other	Deferred	Preferred				Additional		Other	Deferred
		Common	Paid-In	Retained	Comprehensive	Compensation	Stock	Total		Common	Paid-In	Retained	Comprehensive	Compensation	Noncontrolling	Total
		Stock	Capital	Earnings	Loss	Trust	of IPL	Equity		Stock	Capital	Earnings	Loss	Trust	Interest	Equity
Three Months Ended March 31, 2022
Beginning balance, December 31, 2021		$3	$2,749	$3,250	$—	($12)	$—	$5,990
Three Months Ended June 30, 2022									Three Months Ended June 30, 2022
Beginning balance, March 31, 2022									Beginning balance, March 31, 2022	$3	$2,750	$3,336	$—	($12)	$—	$6,077
Net income attributable to Alliant Energy common shareowners	Net income attributable to Alliant Energy common shareowners			192				192	Net income attributable to Alliant Energy common shareowners			159				159
Common stock dividends ($0.4275 per share)	Common stock dividends ($0.4275 per share)			(107)				(107)	Common stock dividends ($0.4275 per share)			(108)				(108)
Shareowner Direct Plan issuances	Shareowner Direct Plan issuances		7					7	Shareowner Direct Plan issuances		6					6
Equity-based compensation plans and other	Equity-based compensation plans and other		(6)	1				(5)	Equity-based compensation plans and other		3					3
Contributions from noncontrolling interest									Contributions from noncontrolling interest						29	29

Ending balance, March 31, 2022		$3	$2,750	$3,336	$—	($12)	$—	$6,077
Three Months Ended March 31, 2021
Beginning balance, December 31, 2020		$2	$2,704	$2,994	($1)	($11)	$200	$5,888
Net income attributable to Alliant Energy common shareowners				171				171
Common stock dividends ($0.4025 per share)				(102)				(102)
Shareowner Direct Plan issuances		1	7					8
Equity-based compensation plans and other			1					1

Ending balance, June 30, 2022									Ending balance, June 30, 2022	$3	$2,759	$3,387	$—	($12)	$29	$6,166

Ending balance, March 31, 2021		$3	$2,712	$3,063	($1)	($11)	$200	$5,966


Alliant Energy	Total Alliant Energy Common Equity
				Accumulated	Shares in	Cumulative
		Additional		Other	Deferred	Preferred
	Common	Paid-In	Retained	Comprehensive	Compensation	Stock	Total
	Stock	Capital	Earnings	Loss	Trust	of IPL	Equity
Three Months Ended June 30, 2021
Beginning balance, March 31, 2021	$3	$2,712	$3,063	($1)	($11)	$200	$5,966
Net income attributable to Alliant Energy common shareowners			144				144
Common stock dividends ($0.4025 per share)			(101)				(101)
Shareowner Direct Plan issuances		7					7
Equity-based compensation plans and other		3					3




Ending balance, June 30, 2021	$3	$2,722	$3,106	($1)	($11)	$200	$6,019

IPL Total IPL Common Equity
Additional Cumulative
Common Paid-In Retained Preferred Total
Stock Capital Earnings Stock Equity
Three Months Ended March 31, 2022
Beginning balance, December 31, 2021 $33 $2,807 $929 $— $3,769
Net income available for common stock 87 87
Common stock dividends (81) (81)
Ending balance, March 31, 2022 $33 $2,807 $935 $— $3,775
Three Months Ended March 31, 2021
Beginning balance, December 31, 2020 $33 $2,752 $979 $200 $3,964
Net income available for common stock 79 79
Common stock dividends (101) (101)
Ending balance, March 31, 2021 $33 $2,752 $957 $200 $3,942



Alliant Energy	Total Alliant Energy Common Equity
				Accumulated	Shares in
		Additional		Other	Deferred
	Common	Paid-In	Retained	Comprehensive	Compensation	Noncontrolling	Total
	Stock	Capital	Earnings	Loss	Trust	Interest	Equity
Six Months Ended June 30, 2022
Beginning balance, December 31, 2021	$3	$2,749	$3,250	$—	($12)	$—	$5,990
Net income attributable to Alliant Energy common shareowners			351				351
Common stock dividends ($0.855 per share)			(215)				(215)
Shareowner Direct Plan issuances		13					13
Equity-based compensation plans and other		(3)	1				(2)
Contributions from noncontrolling interest						29	29



Ending balance, June 30, 2022	$3	$2,759	$3,387	$—	($12)	$29	$6,166

WPL Additional Total
Common Paid-In Retained Common
Stock Capital Earnings Equity
Three Months Ended March 31, 2022
Beginning balance, December 31, 2021 $66 $1,704 $1,053 $2,823
Net income 92 92
Common stock dividends (44) (44)
Capital contributions from parent 180 180
Ending balance, March 31, 2022 $66 $1,884 $1,101 $3,051
Three Months Ended March 31, 2021
Beginning balance, December 31, 2020 $66 $1,459 $953 $2,478
Net income 84 84
Common stock dividends (42) (42)
Capital contributions from parent 125 125
Ending balance, March 31, 2021 $66 $1,584 $995 $2,645



Alliant Energy	Total Alliant Energy Common Equity
				Accumulated	Shares in	Cumulative
		Additional		Other	Deferred	Preferred
	Common	Paid-In	Retained	Comprehensive	Compensation	Stock	Total
	Stock	Capital	Earnings	Loss	Trust	of IPL	Equity
Six Months Ended June 30, 2021
Beginning balance, December 31, 2020	$2	$2,704	$2,994	($1)	($11)	$200	$5,888
Net income attributable to Alliant Energy common shareowners			315				315
Common stock dividends ($0.805 per share)			(203)				(203)
Shareowner Direct Plan issuances	1	14					15
Equity-based compensation plans and other		4					4




Ending balance, June 30, 2021	$3	$2,722	$3,106	($1)	($11)	$200	$6,019


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IPL	Total IPL Common Equity
		Additional		Cumulative
	Common	Paid-In	Retained	Preferred	Total
	Stock	Capital	Earnings	Stock	Equity
Three Months Ended June 30, 2022
Beginning balance, March 31, 2022	$33	$2,807	$935	$—	$3,775
Net income available for common stock			87		87
Common stock dividends			(80)		(80)

Ending balance, June 30, 2022	$33	$2,807	$942	$—	$3,782
Three Months Ended June 30, 2021
Beginning balance, March 31, 2021	$33	$2,752	$957	$200	$3,942
Net income available for common stock			86		86
Common stock dividends			(99)		(99)
Capital contributions from parent		50			50
Ending balance, June 30, 2021	$33	$2,802	$944	$200	$3,979



IPL	Total IPL Common Equity
		Additional		Cumulative
	Common	Paid-In	Retained	Preferred	Total
	Stock	Capital	Earnings	Stock	Equity
Six Months Ended June 30, 2022
Beginning balance, December 31, 2021	$33	$2,807	$929	$—	$3,769
Net income available for common stock			173		173
Common stock dividends			(160)		(160)

Ending balance, June 30, 2022	$33	$2,807	$942	$—	$3,782
Six Months Ended June 30, 2021
Beginning balance, December 31, 2020	$33	$2,752	$979	$200	$3,964
Net income available for common stock			165		165
Common stock dividends			(200)		(200)
Capital contributions from parent		50			50
Ending balance, June 30, 2021	$33	$2,802	$944	$200	$3,979


WPL	Total WPL Common Equity
		Additional
	Common	Paid-In	Retained	Noncontrolling	Total
	Stock	Capital	Earnings	Interest	Equity
Three Months Ended June 30, 2022
Beginning balance, March 31, 2022	$66	$1,884	$1,101	$—	$3,051
Net income			63		63
Common stock dividends			(44)		(44)
Capital contributions from parent		85			85
Contributions from noncontrolling interest				29	29

Other		(1)			(1)
Ending balance, June 30, 2022	$66	$1,968	$1,120	$29	$3,183
Three Months Ended June 30, 2021
Beginning balance, March 31, 2021	$66	$1,584	$995	$—	$2,645
Net income			38		38
Common stock dividends			(43)		(43)
Capital contributions from parent		85			85


Ending balance, June 30, 2021	$66	$1,669	$990	$—	$2,725


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WPL	Total WPL Common Equity
		Additional
	Common	Paid-In	Retained	Noncontrolling	Total
	Stock	Capital	Earnings	Interest	Equity
Six Months Ended June 30, 2022
Beginning balance, December 31, 2021	$66	$1,704	$1,053	$—	$2,823
Net income			156		156
Common stock dividends			(89)		(89)
Capital contributions from parent		265			265
Contributions from noncontrolling interest				29	29

Other		(1)			(1)
Ending balance, June 30, 2022	$66	$1,968	$1,120	$29	$3,183
Six Months Ended June 30, 2021
Beginning balance, December 31, 2020	$66	$1,459	$953	$—	$2,478
Net income			122		122
Common stock dividends			(85)		(85)
Capital contributions from parent		210			210


Ending balance, June 30, 2021	$66	$1,669	$990	$—	$2,725

NOTE 6.7. DEBT

NOTE ~~6(a)~~7(a) Short-term Debt - Information regarding Alliant Energy’s, IPL’s and WPL’s commercial paper classified as short-term debt was as follows (dollars in millions):


March 31, 2022		Alliant Energy	IPL	WPL
June 30, 2022					June 30, 2022	Alliant Energy	IPL	WPL
Amount outstanding	Amount outstanding	$276	$—	$157	Amount outstanding	$399	$—	$222
Weighted average interest rates	Weighted average interest rates	0.6%	N/A	0.5%	Weighted average interest rates	1.8%	N/A	1.7%
Available credit facility capacity	Available credit facility capacity	$724	$250	$143	Available credit facility capacity	$601	$250	$78


		Alliant Energy		IPL		WPL			Alliant Energy		IPL		WPL
Three Months Ended March 31		2022	2021	2022	2021	2022	2021
Three Months Ended June 30								Three Months Ended June 30	2022	2021	2022	2021	2022	2021
Maximum amount outstanding (based on daily outstanding balances)	Maximum amount outstanding (based on daily outstanding balances)	$577	$578	$—	$—	$252	$275	Maximum amount outstanding (based on daily outstanding balances)	$441	$571	$—	$19	$222	$232
Average amount outstanding (based on daily outstanding balances)	Average amount outstanding (based on daily outstanding balances)	$443	$424	$—	$—	$205	$189	Average amount outstanding (based on daily outstanding balances)	$337	$452	$—	$1	$166	$177
Weighted average interest rates	Weighted average interest rates	0.3%	0.2%	—%	—%	0.3%	0.2%	Weighted average interest rates	1.0%	0.2%	—%	0.2%	0.9%	0.1%

Six Months Ended June 30								Six Months Ended June 30
Maximum amount outstanding (based on daily outstanding balances)								Maximum amount outstanding (based on daily outstanding balances)	$577	$578	$—	$19	$252	$275
Average amount outstanding (based on daily outstanding balances)								Average amount outstanding (based on daily outstanding balances)	$390	$438	$—	$—	$185	$183
Weighted average interest rates								Weighted average interest rates	0.6%	0.2%	—%	0.2%	0.5%	0.1%

NOTE ~~6(b)~~7(b) Long-term Debt - In February 2022, AEF issued $350 million of 3.6% senior notes due 2032. The net proceeds from the issuance were used to reduce Alliant Energy’s outstanding commercial paper and for general corporate purposes. In March 2022, AEF entered into a $300 million variable rate ~~(1%~~(2% as of ~~March 31,~~June 30, 2022) term loan credit agreement (with Alliant Energy as guarantor), which expires in March 2024, and used the borrowings under this agreement to retire its $300 million variable rate term loan credit agreement that expired in March 2022.


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NOTE 7.8. REVENUES

Disaggregation of revenues from contracts with customers, which correlates to revenues for each reportable segment, was as follows (in millions):


		Alliant Energy		IPL		WPL			Alliant Energy		IPL		WPL
Three Months Ended March 31		2022	2021	2022	2021	2022	2021
Three Months Ended June 30								Three Months Ended June 30	2022	2021	2022	2021	2022	2021
Electric Utility:	Electric Utility:							Electric Utility:
Retail - residential	Retail - residential	$293	$262	$150	$139	$143	$123	Retail - residential	$289	$258	$158	$142	$131	$116
Retail - commercial	Retail - commercial	188	172	118	110	70	62	Retail - commercial	196	175	127	115	69	60
Retail - industrial	Retail - industrial	211	202	111	112	100	90	Retail - industrial	244	210	136	116	108	94
Wholesale	Wholesale	47	40	15	11	32	29	Wholesale	54	47	16	15	38	32
Bulk power and other	Bulk power and other	34	25	6	14	28	11	Bulk power and other	29	27	5	14	24	13
Total Electric Utility	Total Electric Utility	773	701	400	386	373	315	Total Electric Utility	812	717	442	402	370	315
Gas Utility:	Gas Utility:							Gas Utility:
Retail - residential	Retail - residential	158	99	85	52	73	47	Retail - residential	51	39	28	24	23	15
Retail - commercial	Retail - commercial	82	53	40	27	42	26	Retail - commercial	27	19	14	12	13	7
Retail - industrial	Retail - industrial	8	5	5	3	3	2	Retail - industrial	3	3	2	2	1	1
Transportation/other	Transportation/other	14	13	9	9	5	4	Transportation/other	13	8	8	5	5	3
Total Gas Utility	Total Gas Utility	262	170	139	91	123	79	Total Gas Utility	94	69	52	43	42	26
Other Utility:	Other Utility:							Other Utility:
Steam	Steam	9	9	9	9	—	—	Steam	11	9	11	9	—	—
Other utility	Other utility	2	4	2	3	—	1	Other utility	2	1	1	1	1	—
Total Other Utility	Total Other Utility	11	13	11	12	—	1	Total Other Utility	13	10	12	10	1	—
Non-Utility and Other:	Non-Utility and Other:							Non-Utility and Other:
Travero and other	Travero and other	22	17	—	—	—	—	Travero and other	24	21	—	—	—	—

Total Non-Utility and Other	Total Non-Utility and Other	22	17	—	—	—	—	Total Non-Utility and Other	24	21	—	—	—	—
Total revenues	Total revenues	$1,068	$901	$550	$489	$496	$395	Total revenues	$943	$817	$506	$455	$413	$341



	Alliant Energy		IPL		WPL
Six Months Ended June 30	2022	2021	2022	2021	2022	2021
Electric Utility:
Retail - residential	$581	$520	$308	$281	$273	$239
Retail - commercial	386	347	246	225	140	122
Retail - industrial	453	412	246	228	207	184
Wholesale	101	87	31	26	70	61
Bulk power and other	65	52	12	28	53	24
Total Electric Utility	1,586	1,418	843	788	743	630
Gas Utility:
Retail - residential	210	138	113	76	97	62
Retail - commercial	109	72	54	39	55	33
Retail - industrial	11	8	7	5	4	3
Transportation/other	26	21	17	14	9	7
Total Gas Utility	356	239	191	134	165	105
Other Utility:
Steam	20	18	20	18	—	—
Other utility	3	5	2	4	1	1
Total Other Utility	23	23	22	22	1	1
Non-Utility and Other:
Travero and other	47	38	—	—	—	—

Total Non-Utility and Other	47	38	—	—	—	—
Total revenues	$2,012	$1,718	$1,056	$944	$909	$736

NOTE 8.9. INCOME TAXES

Income Tax Rates - Overall effective income tax rates, which were computed by dividing income tax expense (benefit) by income before income taxes, were as follows. The effective income tax rates were different than the federal statutory rate primarily due to state income taxes, production tax credits, amortization of excess deferred taxes and the effect of rate-making on property-related differences. The increases in Alliant Energy’s and WPL’s overall effective income tax rates for the three ~~months ended March 31, 2022 compared to the same period in 2021 were primarily due to decreased amortization of excess deferred taxes primarily at WPL.~~

Alliant Energy IPL WPL
2022 2021 2022 2021 2022 2021
Overall income tax rate 4% (19%) (14%) (17%) 19% (29%)


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and six months ended June 30, 2022 compared to the same periods in 2021 were primarily due to decreased amortization of excess deferred taxes primarily at WPL.


	Alliant Energy				IPL				WPL
	Three Months		Six Months		Three Months		Six Months		Three Months		Six Months
	2022	2021	2022	2021	2022	2021	2022	2021	2022	2021	2022	2021
Overall income tax rate	2%	(13%)	3%	(16%)	(16%)	(13%)	(15%)	(15%)	18%	(23%)	18%	(27%)

Deferred Tax Assets and Liabilities -

Carryforwards - At ~~March 31,~~June 30, 2022, carryforwards and expiration dates were estimated as follows (in millions):


		Range of Expiration Dates	Alliant Energy	IPL	WPL		Range of Expiration Dates	Alliant Energy	IPL	WPL
Federal net operating losses	Federal net operating losses	2037	$94	$87	$1	Federal net operating losses	2037	$41	$38	$—
State net operating losses	State net operating losses	2022-2042	578	13	2	State net operating losses	2022-2042	556	10	2
Federal tax credits	Federal tax credits	2022-2042	589	369	197	Federal tax credits	2022-2042	620	396	201

Iowa Tax Reform - In March 2022, Iowa tax reform was enacted, which would reduce the current 9.8% Iowa corporate income tax rate beginning in 2023 if certain state income tax revenue triggers are satisfied. Annually, and by each November 1, the Iowa Department of Revenue will establish corporate income tax rates for the next tax year based on net corporate income tax receipts for the prior tax year. ~~Rate~~These corporate income tax rate reductions are currently expected to occur over a period of several years, with a target corporate income tax rate of 5.5%. Alliant Energy is currently unable to predict with certainty the timing or amount of any rate reductions. The majority of any reduction in income tax expense as a result of the lower Iowa corporate income tax rate is currently expected to reduce rates for IPL’s customers. In addition, after the 2023 corporate income tax rate is known in the fourth quarter of 2022, Alliant Energy currently expects to record a charge related to the remeasurement of accumulated deferred income tax assets at its non-utility businesses.

NOTE 9.10. BENEFIT PLANS

NOTE ~~9(a)~~10(a) Pension and OPEB Plans -

Net Periodic Benefit Costs - The components of net periodic benefit costs for sponsored defined benefit pension and OPEB plans for the three and six months ended ~~March 31~~June 30 are included below (in millions). For IPL and WPL, amounts are for their plan participants covered under plans they sponsor, as well as amounts directly assigned to them related to certain participants in the Alliant Energy and Corporate Services sponsored plans.


		Defined Benefit Pension Plans		OPEB Plans	Defined Benefit Pension Plans					OPEB Plans
					Three Months			Six Months		Three Months		Six Months
Alliant Energy	Alliant Energy	2022	2021			2022	2021		Alliant Energy	2022	2021	2022	2021	2022	2021	2022	2021
Service cost	Service cost	$2	$3			$1	$1		Service cost	$2	$3	$4	$6	$1	$1	$2	$2
Interest cost	Interest cost	9	8			1	1		Interest cost	9	9	18	17	2	1	3	2
Expected return on plan assets	Expected return on plan assets	(17)	(17)			(1)	(1)		Expected return on plan assets	(17)	(17)	(34)	(34)	(2)	(1)	(3)	(2)

Amortization of actuarial loss	Amortization of actuarial loss	8	10			1	1		Amortization of actuarial loss	8	9	16	19	—	1	1	2

		$2	$4			$2	$2			$2	$4	$4	$8	$1	$2	$3	$4


		Defined Benefit Pension Plans		OPEB Plans	Defined Benefit Pension Plans					OPEB Plans
					Three Months			Six Months		Three Months		Six Months
IPL	IPL	2022	2021			2022	2021		IPL	2022	2021	2022	2021	2022	2021	2022	2021
Service cost	Service cost	$2	$2			$—	$—		Service cost	$1	$2	$3	$4	$1	$1	$1	$1
Interest cost	Interest cost	4	4			1	1		Interest cost	4	4	8	8	—	—	1	1
Expected return on plan assets	Expected return on plan assets	(8)	(8)			(1)	(1)		Expected return on plan assets	(8)	(8)	(16)	(16)	(1)	(1)	(2)	(2)

Amortization of actuarial loss	Amortization of actuarial loss	3	4			—	—		Amortization of actuarial loss	4	4	7	8	—	1	—	1
		$1	$2			$—	$—			$1	$2	$2	$4	$—	$1	$—	$1


		Defined Benefit Pension Plans		OPEB Plans	Defined Benefit Pension Plans					OPEB Plans
					Three Months			Six Months		Three Months		Six Months
WPL	WPL	2022	2021			2022	2021		WPL	2022	2021	2022	2021	2022	2021	2022	2021
Service cost	Service cost	$1	$1			$—	$—		Service cost	$1	$1	$2	$2	$—	$—	$—	$—
Interest cost	Interest cost	4	4			1	—		Interest cost	4	4	8	8	—	1	1	1
Expected return on plan assets	Expected return on plan assets	(8)	(8)			—	—		Expected return on plan assets	(8)	(7)	(16)	(15)	—	—	—	—

Amortization of actuarial loss	Amortization of actuarial loss	4	5			—	1		Amortization of actuarial loss	4	4	8	9	1	—	1	1

		$1	$2			$1	$1			$1	$2	$2	$4	$1	$1	$2	$2

NOTE ~~9(b)~~10(b) Equity-based Compensation Plans - A summary of compensation expense, including amounts allocated to IPL and WPL, and the related income tax benefits recognized for share-based compensation awards for the three and six months ended ~~March 31~~June 30 was as follows (in millions):

Alliant Energy IPL WPL
2022 2021 2022 2021 2022 2021
Compensation expense $4 $3 $2 $1 $2 $1
Income tax benefits 1 1 1 — — —


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Table of Contents


	Alliant Energy				IPL				WPL
	Three Months		Six Months		Three Months		Six Months		Three Months		Six Months
	2022	2021	2022	2021	2022	2021	2022	2021	2022	2021	2022	2021
Compensation expense	$3	$2	$7	$5	$1	$2	$4	$3	$1	$1	$3	$2
Income tax benefits	1	1	2	2	—	1	1	1	—	1	1	1

As of ~~March 31,~~June 30, 2022, Alliant Energy’s, IPL’s and WPL’s total unrecognized compensation cost related to share-based compensation awards was ~~$15~~$11 million, $8$6 million and $6$5 million, respectively, which is expected to be recognized over a weighted average period of between 1 year and 2 years.


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~~Table of Contents~~

For the ~~three~~six months ended ~~March 31,~~June 30, 2022, performance shares, performance restricted stock units and restricted stock units were granted to key employees under existing plans as follows. These shares and units will be paid out in shares of common stock, and are therefore accounted for as equity awards.


			Weighted Average			Weighted Average
		Grants	Grant Date Fair Value		Grants	Grant Date Fair Value
Performance shares	Performance shares	70,240	$54.45	Performance shares	73,762	$54.45
Performance restricted stock units	Performance restricted stock units	80,252	56.62	Performance restricted stock units	84,277	56.97
Restricted stock units	Restricted stock units	74,360	56.62	Restricted stock units	76,876	56.86

As of ~~March 31,~~June 30, 2022, ~~322,288~~261,301 shares were included in the calculation of diluted EPS related to the nonvested equity awards.

NOTE ~~10.~~11. DERIVATIVE INSTRUMENTS

Commodity Derivatives -

Notional Amounts - As of ~~March 31,~~June 30, 2022, gross notional amounts and settlement/delivery years related to outstanding swap contracts, option contracts, physical forward contracts and FTRs that were accounted for as commodity derivative instruments were as follows (units in thousands):


		FTRs		Natural Gas		Coal		Diesel Fuel		Electricity				FTRs		Natural Gas		Coal		Diesel Fuel
			MWhs	Years	Dths	Years	Tons	Years	Gallons		Years		MWhs	Years	MWhs	Years	Dths	Years	Tons	Years	Gallons	Years
Alliant Energy	Alliant Energy		3,304	2022	175,658	2022-2030	2,653	2022-2023	2,268		2022	Alliant Energy	818	2022,2024	20,382	2022-2023	234,755	2022-2030	2,216	2022-2023	1,512	2022
IPL	IPL		784	2022	94,175	2022-2030	1,053	2022-2023	—		—	IPL	495	2022,2024	8,100	2022-2023	132,019	2022-2030	900	2022-2023	—	—
WPL	WPL		2,520	2022	81,483	2022-2030	1,600	2022-2023	2,268		2022	WPL	323	2022	12,282	2022-2023	102,736	2022-2030	1,316	2022-2023	1,512	2022

Financial Statement Presentation - Derivative instruments are recorded at fair value each reporting date on the balance sheets as assets or liabilities as follows (in millions):


		Alliant Energy		IPL		WPL			Alliant Energy		IPL		WPL
		March 31, 2022	December 31, 2021	March 31, 2022	December 31, 2021	March 31, 2022	December 31, 2021		June 30, 2022	December 31, 2021	June 30, 2022	December 31, 2021	June 30, 2022	December 31, 2021
Current derivative assets	Current derivative assets	$151	$113	$68	$48	$83	$65	Current derivative assets	$217	$113	$131	$48	$86	$65
Non-current derivative assets	Non-current derivative assets	110	63	59	36	51	27	Non-current derivative assets	142	63	76	36	66	27
Current derivative liabilities	Current derivative liabilities	6	8	3	4	3	4	Current derivative liabilities	84	8	58	4	26	4
Non-current derivative liabilities	Non-current derivative liabilities	1	1	1	—	—	1	Non-current derivative liabilities	11	1	9	—	2	1

During the ~~three~~six months ended ~~March 31,~~June 30, 2022, Alliant Energy’s, IPL’s and WPL’s derivative assets increased primarily due to the annual FTR auction operated by MISO and as a result of higher natural gas prices. Alliant Energy’s, IPL’s and WPL’s derivative liabilities increased primarily due to new natural gas contracts entered into in the second quarter of 2022. Based on IPL’s and WPL’s ~~natural gas~~ cost recovery mechanisms, ~~this~~the changes in the fair value of derivative liabilities/assets resulted in ~~corresponding increases in derivative~~comparable changes to regulatory assets/liabilities on the balance sheets.

Credit Risk-related Contingent Features - Various agreements contain credit risk-related contingent features, including requirements to maintain certain credit ratings and/or limitations on liability positions under the agreements based on credit ratings. Certain of these agreements with credit risk-related contingency features are accounted for as derivative instruments. In the event of a material change in creditworthiness or if liability positions exceed certain contractual limits, credit support may need to be provided ~~in the form of letters of credit or cash collateral~~ up to the amount of exposure under the contracts, or the contracts may need to be unwound and underlying liability positions paid. At ~~March 31,~~June 30, 2022 and December 31, 2021, the aggregate fair value of all derivative instruments with credit risk-related contingent features in a net liability position was not materially different than amounts that would be required to be posted as credit support to counterparties by Alliant Energy, IPL or WPL if the most restrictive credit risk-related contingent features for derivative agreements in a net liability position were triggered.

Balance Sheet Offsetting - The fair value amounts of derivative instruments subject to a master netting arrangement are not netted by counterparty on the balance sheets. However, if the fair value amounts of derivative instruments by counterparty were netted, amounts would not be materially different from gross amounts of derivative assets and derivative liabilities at ~~March 31,~~


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June 30, 2022 and December 31, 2021. Fair value amounts recognized for the right to reclaim cash collateral (receivable) or the obligation to return cash collateral (payable) are not offset against fair value amounts recognized for derivative instruments executed with the same counterparty under the same master netting arrangement.


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~~Table of Contents~~

NOTE ~~11.~~12. FAIR VALUE MEASUREMENTS

Fair Value of Financial Instruments - The carrying amounts of current assets and current liabilities approximate fair value because of the short maturity of such financial instruments. Carrying amounts and related estimated fair values of other financial instruments were as follows (in millions):


Alliant Energy	Alliant Energy	March 31, 2022					December 31, 2021					Alliant Energy	June 30, 2022					December 31, 2021
			Fair Value					Fair Value						Fair Value					Fair Value
		Carrying	Level	Level	Level		Carrying	Level	Level	Level			Carrying	Level	Level	Level		Carrying	Level	Level	Level
		Amount	1	2	3	Total	Amount	1	2	3	Total		Amount	1	2	3	Total	Amount	1	2	3	Total
Assets:	Assets:											Assets:
Money market fund investments	Money market fund investments	$59	$59	$—	$—	$59	$32	$32	$—	$—	$32	Money market fund investments	$9	$9	$—	$—	$9	$32	$32	$—	$—	$32
Derivatives	Derivatives	261	—	251	10	261	176	—	146	30	176	Derivatives	359	—	272	87	359	176	—	146	30	176
Deferred proceeds	Deferred proceeds	227	—	—	227	227	214	—	—	214	214	Deferred proceeds	244	—	—	244	244	214	—	—	214	214
Liabilities:	Liabilities:											Liabilities:
Derivatives	Derivatives	7	—	7	—	7	9	—	8	1	9	Derivatives	95	—	80	15	95	9	—	8	1	9
Long-term debt (incl. current maturities)	Long-term debt (incl. current maturities)	7,716	—	7,971	1	7,972	7,368	—	8,329	1	8,330	Long-term debt (incl. current maturities)	7,714	—	7,402	1	7,403	7,368	—	8,329	1	8,330


IPL	IPL	March 31, 2022					December 31, 2021					IPL	June 30, 2022					December 31, 2021
			Fair Value					Fair Value						Fair Value					Fair Value
		Carrying	Level	Level	Level		Carrying	Level	Level	Level			Carrying	Level	Level	Level		Carrying	Level	Level	Level
		Amount	1	2	3	Total	Amount	1	2	3	Total		Amount	1	2	3	Total	Amount	1	2	3	Total
Assets:	Assets:											Assets:
Money market fund investments	Money market fund investments	$59	$59	$—	$—	$59	$32	$32	$—	$—	$32	Money market fund investments	$9	$9	$—	$—	$9	$32	$32	$—	$—	$32
Derivatives	Derivatives	127	—	120	7	127	84	—	65	19	84	Derivatives	207	—	138	69	207	84	—	65	19	84
Deferred proceeds	Deferred proceeds	227	—	—	227	227	214	—	—	214	214	Deferred proceeds	244	—	—	244	244	214	—	—	214	214
Liabilities:	Liabilities:											Liabilities:
Derivatives	Derivatives	4	—	4	—	4	4	—	3	1	4	Derivatives	67	—	56	11	67	4	—	3	1	4
Long-term debt	Long-term debt	3,644	—	3,738	—	3,738	3,643	—	4,124	—	4,124	Long-term debt	3,645	—	3,445	—	3,445	3,643	—	4,124	—	4,124


WPL	WPL	March 31, 2022					December 31, 2021					WPL	June 30, 2022					December 31, 2021
			Fair Value					Fair Value						Fair Value					Fair Value
		Carrying	Level	Level	Level		Carrying	Level	Level	Level			Carrying	Level	Level	Level		Carrying	Level	Level	Level
		Amount	1	2	3	Total	Amount	1	2	3	Total		Amount	1	2	3	Total	Amount	1	2	3	Total
Assets:	Assets:											Assets:

Derivatives	Derivatives	$134	$—	$131	$3	$134	$92	$—	$81	$11	$92	Derivatives	$152	$—	$134	$18	$152	$92	$—	$81	$11	$92
Liabilities:	Liabilities:											Liabilities:
Derivatives	Derivatives	3	—	3	—	3	5	—	5	—	5	Derivatives	28	—	24	4	28	5	—	5	—	5
Long-term debt (incl. current maturities)	Long-term debt (incl. current maturities)	2,430	—	2,592	—	2,592	2,429	—	2,862	—	2,862	Long-term debt (incl. current maturities)	2,430	—	2,370	—	2,370	2,429	—	2,862	—	2,862

Information for fair value measurements using significant unobservable inputs (Level 3 inputs) was as follows (in millions):

Alliant Energy Commodity Contract Derivative
Assets and (Liabilities), net Deferred Proceeds
Three Months Ended March 31 2022 2021 2022 2021
Beginning balance, January 1 $29 $29 $214 $188
Total net losses included in changes in net assets (realized/unrealized) (6) (6) — —
Settlements (a) (13) (7) 13 (81)
Ending balance, March 31 $10 $16 $227 $107
The amount of total net losses for the period included in changes in net liabilities attributable to the change in unrealized losses relating to liabilities held at March 31 ($5) ($6) $— $—


Alliant Energy	Commodity Contract Derivative
	Assets and (Liabilities), net		Deferred Proceeds
Three Months Ended June 30	2022	2021	2022	2021
Beginning balance, April 1	$10	$15	$227	$107
Total net gains (losses) included in changes in net assets (realized/unrealized)	(10)	8	—	—


Purchases	79	21	—	—

Settlements (a)	(7)	(5)	17	47
Ending balance, June 30	$72	$39	$244	$154
The amount of total net gains (losses) for the period included in changes in net assets attributable to the change in unrealized gains (losses) relating to assets and liabilities held at June 30	($10)	$8	$—	$—


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Alliant Energy	Commodity Contract Derivative
	Assets and (Liabilities), net		Deferred Proceeds
Six Months Ended June 30	2022	2021	2022	2021
Beginning balance, January 1	$29	$29	$214	$188
Total net gains (losses) included in changes in net assets (realized/unrealized)	(16)	1	—	—


Purchases	79	21	—	—

Settlements (a)	(20)	(12)	30	(34)
Ending balance, June 30	$72	$39	$244	$154
The amount of total net gains (losses) for the period included in changes in net assets attributable to the change in unrealized gains (losses) relating to assets and liabilities held at June 30	($16)	$1	$—	$—


IPL	Commodity Contract Derivative
	Assets and (Liabilities), net		Deferred Proceeds
Three Months Ended June 30	2022	2021	2022	2021
Beginning balance, April 1	$7	$14	$227	$107
Total net gains (losses) included in changes in net assets (realized/unrealized)	(3)	4	—	—


Purchases	58	16	—	—

Settlements (a)	(4)	(4)	17	47
Ending balance, June 30	$58	$30	$244	$154
The amount of total net gains (losses) for the period included in changes in net assets attributable to the change in unrealized gains (losses) relating to assets and liabilities held at June 30	($3)	$4	$—	$—



IPL	Commodity Contract Derivative
	Assets and (Liabilities), net		Deferred Proceeds
Six Months Ended June 30	2022	2021	2022	2021
Beginning balance, January 1	$18	$26	$214	$188
Total net losses included in changes in net assets (realized/unrealized)	(7)	(2)	—	—


Purchases	58	16	—	—

Settlements (a)	(11)	(10)	30	(34)
Ending balance, June 30	$58	$30	$244	$154
The amount of total net losses for the period included in changes in net assets attributable to the change in unrealized losses relating to assets and liabilities held at June 30	($8)	($2)	$—	$—


WPL	Commodity Contract Derivative
	Assets and (Liabilities), net
Three Months Ended June 30	2022	2021
Beginning balance, April 1	$3	$1
Total net gains (losses) included in changes in net assets (realized/unrealized)	(7)	4


Purchases	21	5

Settlements	(3)	(1)
Ending balance, June 30	$14	$9
The amount of total net gains (losses) for the period included in changes in net assets attributable to the change in unrealized gains (losses) relating to assets and liabilities held at June 30	($7)	$4



WPL	Commodity Contract Derivative
	Assets and (Liabilities), net
Six Months Ended June 30	2022	2021
Beginning balance, January 1	$11	$3
Total net gains (losses) included in changes in net assets (realized/unrealized)	(9)	3


Purchases	21	5

Settlements	(9)	(2)
Ending balance, June 30	$14	$9
The amount of total net gains (losses) for the period included in changes in net assets attributable to the change in unrealized gains (losses) relating to assets and liabilities held at June 30	($8)	$3

IPL Commodity Contract Derivative
Assets and (Liabilities), net Deferred Proceeds
Three Months Ended March 31 2022 2021 2022 2021
Beginning balance, January 1 $18 $26 $214 $188
Total net losses included in changes in net assets (realized/unrealized) (4) (5) — —
Settlements (a) (7) (6) 13 (81)
Ending balance, March 31 $7 $15 $227 $107
The amount of total net losses for the period included in changes in net liabilities attributable to the change in unrealized losses relating to liabilities held at March 31 ($4) ($6) $— $—

WPL Commodity Contract Derivative
Assets and (Liabilities), net
Three Months Ended March 31 2022 2021
Beginning balance, January 1 $11 $3
Total net losses included in changes in net assets (realized/unrealized) (2) (1)
Settlements (6) (1)
Ending balance, March 31 $3 $1
The amount of total net losses for the period included in changes in net liabilities attributable to the change in unrealized losses relating to liabilities held at March 31 ($1) $—

Table of Contents

(a)Settlements related to deferred proceeds are due to the change in the carrying amount of receivables sold less the allowance for expected credit losses associated with the receivables sold and cash amounts received from the receivables sold.

Commodity Contracts - The fair value of FTR and natural gas commodity contracts categorized as Level 3 was recognized as net derivative assets (liabilities) as follows (in millions):


		Alliant Energy		IPL		WPL			Alliant Energy		IPL		WPL
		Excluding FTRs	FTRs	Excluding FTRs	FTRs	Excluding FTRs	FTRs		Excluding FTRs	FTRs	Excluding FTRs	FTRs	Excluding FTRs	FTRs
March 31, 2022		$3	$7	$3	$4	$—	$3
June 30, 2022								June 30, 2022	($11)	$83	($8)	$66	($3)	$17
December 31, 2021	December 31, 2021	9	20	8	10	1	10	December 31, 2021	9	20	8	10	1	10

NOTE ~~12.~~13. COMMITMENTS AND CONTINGENCIES

NOTE ~~12(a)~~13(a) Capital Purchase Commitments - Various contractual obligations contain minimum future commitments related to capital expenditures for certain construction projects, including WPL’s expansion of solar generation. At ~~March 31,~~June 30, 2022, Alliant Energy’s and WPL’s minimum future commitments for these projects were ~~$214~~$332 million and ~~$213~~$330 million, respectively.

NOTE ~~12(b)~~13(b) Other Purchase Commitments - Various commodity supply, transportation and storage contracts help meet obligations to provide electricity and natural gas to utility customers. In addition, there are various purchase commitments associated with other goods and services. At ~~March 31,~~June 30, 2022, related minimum future commitments were as follows (in millions):


		Alliant Energy	IPL	WPL		Alliant Energy	IPL	WPL

Natural gas	Natural gas	$939	$472	$467	Natural gas	$1,396	$691	$705
Coal	Coal	127	72	55	Coal	148	72	76
Other (a)	Other (a)	135	66	36	Other (a)	114	57	28
		$1,201	$610	$558		$1,658	$820	$809

(a)Includes individual commitments incurred during the normal course of business that exceeded $1 million at ~~March 31,~~June 30, 2022.

NOTE ~~12(c)~~13(c) Guarantees and Indemnifications -

Whiting Petroleum - Whiting Petroleum is an independent oil and gas company. In 2004, Alliant Energy sold its remaining interest in Whiting Petroleum. Alliant Energy Resources, LLC, as the successor to a predecessor entity that owned Whiting Petroleum, and a wholly-owned subsidiary of AEF, continues to guarantee the partnership obligations of an affiliate of Whiting Petroleum under multiple general partnership agreements in the oil and gas industry. The guarantees do not include a maximum limit. Based on information made available to Alliant Energy by Whiting Petroleum, the Whiting Petroleum affiliate holds an approximate 6% share in the partnerships, and currently known obligations include costs associated with the future abandonment of certain facilities owned by the partnerships. The general partnerships were formed under California law, and Alliant Energy Resources, LLC may need to perform under the guarantees if the affiliate of Whiting Petroleum is unable to meet its partnership obligations.


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~~Table of Contents~~

As of ~~March 31,~~June 30, 2022, the currently known partnership obligations for the abandonment obligations are estimated at ~~$60~~$58 million, which represents Alliant Energy’s currently estimated maximum exposure under the guarantees. Alliant Energy estimates its expected loss to be a portion of the ~~$60~~$58 million of known partnership abandonment obligations of the Whiting Petroleum affiliate and the other partners. Alliant Energy is not aware of any material liabilities related to these guarantees that it is probable that it will be obligated to pay; however, as of both ~~March 31,~~June 30, 2022 and December 31, 2021, a liability of $5 million is recorded in “Other liabilities” on Alliant Energy’s balance sheets for expected credit losses related to the contingent obligations that are in the scope of these guarantees.

Whiting Petroleum completed a business combination with Oasis Petroleum Inc. in July 2022. The combined operations are now known as Chord Energy Corporation. The business combination is not expected to affect the scope of the Whiting Petroleum affiliate’s obligations to Alliant Energy or Alliant Energy’s related guarantees.

Non-utility Wind Farm in Oklahoma - In 2017, a wholly-owned subsidiary of AEF acquired a cash equity ownership interest in a non-utility wind farm located in Oklahoma. The wind farm provides electricity to a third party under a long-term PPA. Alliant Energy provided a parent guarantee of its subsidiary’s indemnification obligations under the related operating agreement and PPA. Alliant Energy’s obligations under the operating agreement were $67 million as of ~~March 31,~~June 30, 2022 and will reduce annually until expiring in July 2047. Alliant Energy’s obligations under the PPA are subject to a maximum limit of $17 million and expire in December 2031, subject to potential extension. Alliant Energy is not aware of any material liabilities related to this guarantee that it is probable that it will be obligated to pay and therefore has not recognized any material liabilities related to this guarantee as of ~~March 31,~~June 30, 2022 and December 31, 2021.


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NOTE ~~12(d)~~13(d) Environmental Matters -

Manufactured Gas Plant (MGP) Sites - IPL and WPL have current or previous ownership interests in various sites that are previously associated with the production of gas for which IPL and WPL have, or may have in the future, liability for investigation, remediation and monitoring costs. IPL and WPL are working pursuant to the requirements of various federal and state agencies to investigate, mitigate, prevent and remediate, where necessary, the environmental impacts to property, including natural resources, at and around these former MGP sites in order to protect public health and the environment. At ~~March 31,~~June 30, 2022, estimated future costs expected to be incurred for the investigation, remediation and monitoring of the MGP sites, as well as environmental liabilities recorded on the balance sheets for these sites, which are not discounted, were as follows (in millions). At ~~March 31,~~June 30, 2022, such amounts for WPL were not material.


		Alliant Energy			IPL				Alliant Energy			IPL
Range of estimated future costs	Range of estimated future costs	$10	-	$26	$7	-	$20	Range of estimated future costs	$9	-	$25	$6	-	$19
Current and non-current environmental liabilities	Current and non-current environmental liabilities	$12			$9			Current and non-current environmental liabilities	$12			$8

IPL Consent Decree - In 2015, the U.S. District Court for the Northern District of Iowa approved a Consent Decree that IPL entered into with the EPA, the Sierra Club, the State of Iowa and Linn County in Iowa, thereby resolving potential Clean Air Act issues associated with emissions from IPL’s coal-fired generating facilities in Iowa. IPL has completed various requirements under the Consent Decree. IPL’s remaining requirements include fuel switching or retiring Prairie Creek Units 1 and 3 by December 31, 2025. Alliant Energy and IPL currently expect to recover material costs incurred by IPL related to compliance with the terms of the Consent Decree from IPL’s electric customers.

Other Environmental Contingencies - In addition to the environmental liabilities discussed above, various environmental rules are monitored that may have a significant impact on future operations. Several of these environmental rules are subject to legal challenges, reconsideration and/or other uncertainties. Given uncertainties regarding the outcome, timing and compliance plans for these environmental matters, the complete financial impact of each of these rules is not able to be determined; however, future capital investments and/or modifications to EGUs and electric and gas distribution systems to comply with certain of these rules could be significant. Specific current, proposed or potential environmental matters include, among others: Effluent Limitation Guidelines, Coal Combustion Residuals Rule, and various legislation and EPA regulations to monitor and regulate the emission of greenhouse gases, including the Clean Air Act.

NOTE ~~12(e)~~13(e) Collective Bargaining Agreements - ~~At March 31, 2022, employees covered by collective bargaining agreements represented 55%, 70% and 83% of total employees of Alliant Energy, IPL and WPL, respectively.~~ In May 2022, WPL’s collective bargaining agreement with International Brotherhood of Electrical Workers Local 965 ~~expires, representing 26% and 83% of total employees of Alliant Energy and WPL, respectively. While the process to renew the agreement is underway~~expired and a ~~tentative~~new agreement ~~has been~~was reached, ~~Alliant Energy and WPL are currently unable to predict the outcome.~~which expires May 31, 2026.


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NOTE ~~13.~~14. SEGMENTS OF BUSINESS

Certain financial information relating to Alliant Energy’s, IPL’s and WPL’s business segments is as follows. Intersegment revenues were not material to their respective operations.


Alliant Energy	Alliant Energy					ATC Holdings,	Alliant	Alliant Energy					ATC Holdings,	Alliant
		Utility				Non-Utility,	Energy		Utility				Non-Utility,	Energy
		Electric	Gas	Other	Total	Parent and Other	Consolidated		Electric	Gas	Other	Total	Parent and Other	Consolidated
		(in millions)							(in millions)
Three Months Ended March 31, 2022
Three Months Ended June 30, 2022								Three Months Ended June 30, 2022
Revenues	Revenues	$773	$262	$11	$1,046	$22	$1,068	Revenues	$812	$94	$13	$919	$24	$943
Operating income	Operating income	181	57	3	241	7	248	Operating income	195	8	1	204	8	212
Net income attributable to Alliant Energy common shareowners	Net income attributable to Alliant Energy common shareowners				179	13	192	Net income attributable to Alliant Energy common shareowners				150	9	159
Three Months Ended March 31, 2021
Three Months Ended June 30, 2021								Three Months Ended June 30, 2021
Revenues	Revenues	$701	$170	$13	$884	$17	$901	Revenues	$717	$69	$10	$796	$21	$817
Operating income		147	44	2	193	5	198
Operating income (loss)								Operating income (loss)	164	3	(1)	166	10	176
Net income attributable to Alliant Energy common shareowners	Net income attributable to Alliant Energy common shareowners				163	8	171	Net income attributable to Alliant Energy common shareowners				124	20	144

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Alliant Energy					ATC Holdings,	Alliant
	Utility				Non-Utility,	Energy
	Electric	Gas	Other	Total	Parent and Other	Consolidated
	(in millions)
Six Months Ended June 30, 2022
Revenues	$1,586	$356	$23	$1,965	$47	$2,012
Operating income	376	65	4	445	15	460
Net income attributable to Alliant Energy common shareowners				329	22	351
Six Months Ended June 30, 2021
Revenues	$1,418	$239	$23	$1,680	$38	$1,718
Operating income	311	47	1	359	15	374
Net income attributable to Alliant Energy common shareowners				287	28	315


IPL	Electric	Gas	Other	Total
	(in millions)
Three Months Ended June 30, 2022
Revenues	$442	$52	$12	$506
Operating income	104	4	1	109
Net income available for common stock				87
Three Months Ended June 30, 2021
Revenues	$402	$43	$10	$455
Operating income	107	3	1	111
Net income available for common stock				86
Six Months Ended June 30, 2022
Revenues	$843	$191	$22	$1,056
Operating income	179	36	3	218
Net income available for common stock				173
Six Months Ended June 30, 2021
Revenues	$788	$134	$22	$944
Operating income	179	33	2	214
Net income available for common stock				165


WPL	Electric	Gas	Other	Total
	(in millions)
Three Months Ended June 30, 2022
Revenues	$370	$42	$1	$413
Operating income	91	4	—	95
Net income				63
Three Months Ended June 30, 2021
Revenues	$315	$26	$—	$341
Operating income (loss)	57	—	(2)	55
Net income				38
Six Months Ended June 30, 2022
Revenues	$743	$165	$1	$909
Operating income	197	29	1	227
Net income				156
Six Months Ended June 30, 2021
Revenues	$630	$105	$1	$736
Operating income (loss)	132	14	(1)	145
Net income				122

IPL Electric Gas Other Total
(in millions)
Three Months Ended March 31, 2022
Revenues $400 $139 $11 $550
Operating income 75 32 3 110
Net income available for common stock 87
Three Months Ended March 31, 2021
Revenues $386 $91 $12 $489
Operating income 72 30 1 103
Net income available for common stock 79

WPL Electric Gas Other Total
(in millions)
Three Months Ended March 31, 2022
Revenues $373 $123 $— $496
Operating income 106 25 — 131
Net income 92
Three Months Ended March 31, 2021
Revenues $315 $79 $1 $395
Operating income 75 14 1 90
Net income 84

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NOTE ~~14.~~15. RELATED PARTIES

Service Agreements - Pursuant to service agreements, IPL and WPL receive various administrative and general services from an affiliate, Corporate Services. These services are billed to IPL and WPL at cost based on expenses incurred by Corporate Services for the benefit of IPL and WPL, respectively. These costs consisted primarily of employee compensation and benefits, fees associated with various professional services, depreciation and amortization of property, plant and equipment, and a return on net assets. Corporate Services also acts as agent on behalf of IPL and WPL pursuant to the service agreements. As agent, Corporate Services enters into energy, capacity, ancillary services, and transmission sale and purchase transactions within MISO. Corporate Services assigns such sales and purchases among IPL and WPL based on statements received from MISO. The amounts billed for services provided, sales credited and purchases for the three and six months ended ~~March 31~~June 30 were as follows (in millions):


		IPL		WPL	IPL					WPL
					Three Months			Six Months		Three Months		Six Months
		2022	2021			2022	2021			2022	2021	2022	2021	2022	2021	2022	2021
Corporate Services billings	Corporate Services billings	$40	$40			$36	$35		Corporate Services billings	$51	$48	$91	$88	$42	$41	$78	$76
Sales credited	Sales credited	—	1			18	1		Sales credited	—	4	—	5	13	6	31	7
Purchases billed	Purchases billed	94	143			22	26		Purchases billed	129	99	223	242	39	21	61	47


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Net intercompany payables to Corporate Services were as follows (in millions):

IPL WPL
March 31, 2022 December 31, 2021 March 31, 2022 December 31, 2021
Net payables to Corporate Services $120 $110 $76 $83

IPL

WPL

June 30, 2022

December 31, 2021

June 30, 2022

December 31, 2021

Net payables to Corporate Services

$112

$110

$63

$83

ATC - Pursuant to various agreements, WPL receives a range of transmission services from ATC. WPL provides operation, maintenance, and construction services to ATC. WPL and ATC also bill each other for use of shared facilities owned by each party. The related amounts billed between the parties for the three and six months ended ~~March 31~~June 30 were as follows (in millions):


				Three Months		Six Months
		2022	2021			2022	2021	2022	2021
ATC billings to WPL	ATC billings to WPL	$34	$32		ATC billings to WPL	$35	$30	$69	$62
WPL billings to ATC	WPL billings to ATC	3	3		WPL billings to ATC	5	6	8	9

WPL owed ATC net amounts of $9 million as of ~~March 31,~~June 30, 2022 and $10 million as of December 31, 2021.

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

This MDA includes information relating to Alliant Energy, and IPL and WPL (collectively, the Utilities), as well as ATC Holdings, AEF and Corporate Services. Where appropriate, information relating to a specific entity has been segregated and labeled as such. The following discussion and analysis should be read in conjunction with the Financial Statements and the Notes included in this report, as well as the financial statements, notes and MDA included in the 2021 Form 10-K. Unless otherwise noted, all “per share” references in MDA refer to earnings per diluted share.

2022 HIGHLIGHTS

Key highlights since the filing of the 2021 Form 10-K include the following:

Customer Investments:

•In response to a petition from a U.S.-based solar panel assembler, in March 2022, the U.S. Department of Commerce initiated an investigation into whether the sourcing of solar project materials and equipment from certain Southeast Asian countries circumvent tariffs and duties imposed on such materials and equipment imported from China. In June 2022, a presidential executive order postponed through 2024 any additional tariffs on solar project materials and equipment while the U.S. Department of Commerce completes its investigation. Alliant Energy, IPL and WPL are currently unable to predict with certainty the future outcome or impact of these ~~matters;~~matters, including from any related legal challenges; however, this could result in delays and/or higher costs for IPL’s and WPL’s planned development and acquisition of additional renewable energy, and impact Alliant Energy’s, IPL’s and WPL’s anticipated future construction and acquisition expenditures.

•In ~~April~~June 2022, the ~~IUB~~PSCW issued an order approving IPL’s request for an extension of the procedural schedule related to its November 2021 advance rate-making principles filing with the IUB for up to 400 MW of new solar generation and 75 MW of battery storage. IPL requested an extension in order to review the proposed fixed cost cap included in its November 2021 filing given the cost pressures prevalent in the solar generation and battery storage markets, as well as narrow the selection of certain solar generation projects included in the filing. IPL currently expects a decision on its advance rate-making principles filing by the end of 2022.

•~~In April 2022, WPL received an oral decision from the PSCW for its~~WPL’s second certificate of authority ~~authorizing WPL~~ to acquire, construct, own, and operate up to 414 MW of new solar generation in the following Wisconsin counties: Dodge (150 MW), Waushara (99 MW), Rock (65 MW), Grant (50 MW) and Green (50 MW).


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•In June 2022, IPL filed for a revised fixed cost cap of $1,934/kilowatt with the IUB related to IPL’s November 2021 advance rate-making principles filing for up to 400 MW of solar generation with in-service dates in 2023 and 2024 and approximately 75 MW of battery storage in 2024, which reflects higher materials, labor and shipping costs. The revised fixed cost cap includes allowance for funds used during construction and transmission upgrade costs among other costs, and excludes estimated tax equity partner contributions. IPL currently expects a decision from the IUB on its filing by the end of 2022.

•Refer to Note 3 for discussion of revised expected timing for the retirements of various IPL and WPL coal-fired EGUs.

•Refer to Notes 1(b) and 6 for discussion of contributions to the joint venture associated with certain WPL solar generation projects made in the second quarter of 2022 by WPL and the tax equity partner.

Rate Matters:

•In June 2022, WPL filed a limited reopener request with the PSCW to increase annual retail gas rates for the 2023 forward-looking Test Period by approximately $10 million, which reflects changes in weighted average cost of capital, updated depreciation rates and modifications to certain regulatory asset and regulatory liability amortizations. In July 2022, WPL filed a request with the PSCW to decrease annual retail electric rates by approximately $37 million effective January 1, 2023, which reflects a change in expected fuel-related costs in 2023. WPL currently expects decisions from the PSCW on its requests by the end of 2022.

Legislative Matters:

•Refer to Note 8 9 for discussion of Iowa tax reform enacted in March 2022.

RESULTS OF OPERATIONS

Results of operations include financial information prepared in accordance with GAAP as well as utility electric margins and utility gas margins, which are not measures of financial performance under GAAP. Utility electric margins are defined as electric revenues less electric production fuel, purchased power and electric transmission service expenses. Utility gas margins are defined as gas revenues less cost of gas sold. Utility electric margins and utility gas margins are non-GAAP financial measures because they exclude other utility and non-utility revenues, other operation and maintenance expenses, depreciation and amortization expenses, and taxes other than income tax expense.

Management believes that utility electric and gas margins provide a meaningful basis for evaluating and managing utility operations since electric production fuel, purchased power and electric transmission service expenses and cost of gas sold are generally passed through to customers, and therefore, result in changes to electric and gas revenues that are comparable to changes in such expenses. The presentation of utility electric and gas margins herein is intended to provide supplemental information for investors regarding operating performance. These utility electric and gas margins may not be comparable to how other entities define utility electric and gas margin. Furthermore, these measures are not intended to replace operating income as determined in accordance with GAAP as an indicator of operating performance.


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Additionally, the table below includes EPS for Utilities and Corporate Services, ATC Holdings, and Non-utility and Parent, which are non-GAAP financial measures. Alliant Energy believes these non-GAAP financial measures are useful to investors because they facilitate an understanding of segment performance and trends, and provide additional information about Alliant Energy’s operations on a basis consistent with the measures that management uses to manage its operations and evaluate its performance.

Financial Results Overview - Alliant Energy’s net income (loss) and EPS attributable to Alliant Energy common shareowners for the three months ended ~~March 31~~June 30 were as follows (dollars in millions, except per share amounts):


		2022		2021			2022		2021
		Income	EPS	Income (Loss)	EPS		Income (Loss)	EPS	Income	EPS

Utilities and Corporate Services	Utilities and Corporate Services	$183	$0.73	$166	$0.66	Utilities and Corporate Services	$154	$0.61	$128	$0.51
ATC Holdings	ATC Holdings	8	0.03	8	0.03	ATC Holdings	8	0.03	8	0.03
Non-utility and Parent	Non-utility and Parent	1	0.01	(3)	(0.01)	Non-utility and Parent	(3)	(0.01)	8	0.03

Alliant Energy Consolidated	Alliant Energy Consolidated	$192	$0.77	$171	$0.68	Alliant Energy Consolidated	$159	$0.63	$144	$0.57

Alliant Energy’s Utilities and Corporate Services net income increased by ~~$17~~$26 million for the three-month period, primarily due to higher AFUDC, timing of income tax expense and higher ~~earnings resulting from WPL’s increasing rate base,~~temperature-normalized sales. These items were partially offset by higher ~~sales~~interest expense.

Alliant Energy’s Non-utility and Parent net income decreased by $11 million for the three-month period primarily due to ~~favorable temperature impacts compared to 2021, as well as higher temperature-normalized sales.~~the timing of income taxes.


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For the three and six months ended ~~March 31,~~June 30, operating income and a reconciliation of utility electric and gas margins to the most directly comparable GAAP measure, operating income, was as follows (in millions):


		Alliant Energy		IPL		WPL			Alliant Energy		IPL		WPL
Three Months	Three Months	2022	2021	2022	2021	2022	2021	Three Months	2022	2021	2022	2021	2022	2021
Operating income	Operating income	$248	$198	$110	$103	$131	$90	Operating income	$212	$176	$109	$111	$95	$55
Electric utility revenues	Electric utility revenues	$773	$701	$400	$386	$373	$315	Electric utility revenues	$812	$717	$442	$402	$370	$315
Electric production fuel and purchased power expenses	Electric production fuel and purchased power expenses	(168)	(133)	(67)	(59)	(101)	(74)	Electric production fuel and purchased power expenses	(191)	(138)	(83)	(55)	(108)	(84)
Electric transmission service expense	Electric transmission service expense	(138)	(134)	(97)	(92)	(41)	(42)	Electric transmission service expense	(133)	(121)	(91)	(79)	(41)	(42)
Utility Electric Margin (non-GAAP)	Utility Electric Margin (non-GAAP)	467	434	236	235	231	199	Utility Electric Margin (non-GAAP)	488	458	268	268	221	189
Gas utility revenues	Gas utility revenues	262	170	139	91	123	79	Gas utility revenues	94	69	52	43	42	26
Cost of gas sold	Cost of gas sold	(168)	(100)	(85)	(50)	(83)	(50)	Cost of gas sold	(48)	(31)	(27)	(22)	(21)	(9)
Utility Gas Margin (non-GAAP)	Utility Gas Margin (non-GAAP)	94	70	54	41	40	29	Utility Gas Margin (non-GAAP)	46	38	25	21	21	17
Other utility revenues	Other utility revenues	11	13	11	12	—	1	Other utility revenues	13	10	12	10	1	—
Non-utility revenues	Non-utility revenues	22	17	—	—	—	—	Non-utility revenues	24	21	—	—	—	—
Other operation and maintenance expenses	Other operation and maintenance expenses	(153)	(146)	(83)	(77)	(58)	(59)	Other operation and maintenance expenses	(166)	(160)	(87)	(81)	(67)	(69)
Depreciation and amortization expenses	Depreciation and amortization expenses	(166)	(164)	(94)	(94)	(70)	(69)	Depreciation and amortization expenses	(166)	(165)	(95)	(93)	(69)	(70)
Taxes other than income tax expense	Taxes other than income tax expense	(27)	(26)	(14)	(14)	(12)	(11)	Taxes other than income tax expense	(27)	(26)	(14)	(14)	(12)	(12)
Operating income	Operating income	$248	$198	$110	$103	$131	$90	Operating income	$212	$176	$109	$111	$95	$55



	Alliant Energy		IPL		WPL
Six Months	2022	2021	2022	2021	2022	2021
Operating income	$460	$374	$218	$214	$227	$145
Electric utility revenues	$1,586	$1,418	$843	$788	$743	$630
Electric production fuel and purchased power expenses	(359)	(271)	(150)	(114)	(209)	(158)
Electric transmission service expense	(271)	(255)	(188)	(171)	(83)	(84)
Utility Electric Margin (non-GAAP)	956	892	505	503	451	388
Gas utility revenues	356	239	191	134	165	105
Cost of gas sold	(216)	(131)	(112)	(72)	(104)	(59)
Utility Gas Margin (non-GAAP)	140	108	79	62	61	46
Other utility revenues	23	23	22	22	1	1
Non-utility revenues	47	38	—	—	—	—
Other operation and maintenance expenses	(320)	(306)	(171)	(158)	(123)	(128)
Depreciation and amortization expenses	(332)	(329)	(189)	(187)	(139)	(139)
Taxes other than income tax expense	(54)	(52)	(28)	(28)	(24)	(23)
Operating income	$460	$374	$218	$214	$227	$145

Operating Income Variances - Variances between periods in operating income for the three and six months ended ~~March 31,~~June 30, 2022 compared to the same ~~period~~periods in 2021 were as follows (in millions):


				Three Months		Six Months
		Alliant Energy	IPL		WPL			Alliant Energy	IPL	WPL	Alliant Energy	IPL	WPL
Total higher utility electric margin variance (Refer to details below)	Total higher utility electric margin variance (Refer to details below)	$33	$1		$32		Total higher utility electric margin variance (Refer to details below)	$30	$—	$32	$64	$2	$63
Total higher utility gas margin variance (Refer to details below)	Total higher utility gas margin variance (Refer to details below)	24	13		11		Total higher utility gas margin variance (Refer to details below)	8	4	4	32	17	15
Total (higher) lower other operation and maintenance expenses variance (Refer to details below)	Total (higher) lower other operation and maintenance expenses variance (Refer to details below)	(7)	(6)		1		Total (higher) lower other operation and maintenance expenses variance (Refer to details below)	(6)	(6)	2	(14)	(13)	5
Higher depreciation and amortization expense primarily due to additional plant in service in 2021 and 2022		(2)	—		(1)

Other	Other	2	(1)		(2)		Other	4	—	2	4	(2)	(1)
		$50	$7		$41			$36	($2)	$40	$86	$4	$82


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Electric and Gas Revenues and Sales Summary - Electric and gas revenues (in millions), and MWh and Dth sales (in thousands), for the three and six months ended ~~March 31~~June 30 were as follows:


Alliant Energy	Alliant Energy	Electric				Gas				Alliant Energy	Electric				Gas
		Revenues		MWhs Sold		Revenues		Dths Sold			Revenues		MWhs Sold		Revenues		Dths Sold
		2022	2021	2022	2021	2022	2021	2022	2021		2022	2021	2022	2021	2022	2021	2022	2021

Three Months										Three Months
Retail	Retail	$692	$636	6,388	6,272	$248	$157	26,095	23,431	Retail	$729	$643	6,127	5,959	$81	$61	7,605	6,604
Sales for resale	Sales for resale	68	45	1,945	1,071	N/A	N/A	N/A	N/A	Sales for resale	69	58	1,456	1,487	N/A	N/A	N/A	N/A
Transportation/Other	Transportation/Other	13	20	17	19	14	13	29,877	24,690	Transportation/Other	14	16	15	16	13	8	22,382	23,056
		$773	$701	8,350	7,362	$262	$170	55,972	48,121		$812	$717	7,598	7,462	$94	$69	29,987	29,660
Six Months										Six Months
Retail										Retail	$1,420	$1,279	12,516	12,231	$330	$218	33,701	30,035
Sales for resale										Sales for resale	137	103	3,402	2,558	N/A	N/A	N/A	N/A
Transportation/Other										Transportation/Other	29	36	31	35	26	21	52,260	47,746
											$1,586	$1,418	15,949	14,824	$356	$239	85,961	77,781


IPL	Electric				Gas
	Revenues		MWhs Sold		Revenues		Dths Sold
	2022	2021	2022	2021	2022	2021	2022	2021
Three Months
Retail	$421	$373	3,434	3,314	$44	$38	3,778	3,428
Sales for resale	13	17	422	386	N/A	N/A	N/A	N/A
Transportation/Other	8	12	8	7	8	5	10,154	9,241
	$442	$402	3,864	3,707	$52	$43	13,932	12,669
Six Months
Retail	$800	$734	7,085	6,896	$174	$120	17,380	15,566
Sales for resale	26	28	1,019	673	N/A	N/A	N/A	N/A
Transportation/Other	17	26	16	17	17	14	22,174	20,419
	$843	$788	8,120	7,586	$191	$134	39,554	35,985


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IPL Electric Gas
Revenues MWhs Sold Revenues Dths Sold
2022 2021 2022 2021 2022 2021 2022 2021
Retail $379 $361 3,651 3,582 $130 $82 13,601 12,138
Sales for resale 13 11 597 287 N/A N/A N/A N/A
Transportation/Other 8 14 8 10 9 9 12,020 11,178
$400 $386 4,256 3,879 $139 $91 25,621 23,316


WPL	WPL	Electric				Gas				WPL	Electric				Gas
		Revenues		MWhs Sold		Revenues		Dths Sold			Revenues		MWhs Sold		Revenues		Dths Sold
		2022	2021	2022	2021	2022	2021	2022	2021		2022	2021	2022	2021	2022	2021	2022	2021

Three Months										Three Months
Retail	Retail	$313	$275	2,737	2,690	$118	$75	12,494	11,293	Retail	$308	$270	2,693	2,645	$37	$23	3,827	3,176
Sales for resale	Sales for resale	55	34	1,348	784	N/A	N/A	N/A	N/A	Sales for resale	56	41	1,034	1,101	N/A	N/A	N/A	N/A
Transportation/Other	Transportation/Other	5	6	9	9	5	4	17,857	13,512	Transportation/Other	6	4	7	9	5	3	12,228	13,815
		$373	$315	4,094	3,483	$123	$79	30,351	24,805		$370	$315	3,734	3,755	$42	$26	16,055	16,991
Six Months										Six Months
Retail										Retail	$620	$545	5,431	5,335	$156	$98	16,321	14,469
Sales for resale										Sales for resale	111	75	2,383	1,885	N/A	N/A	N/A	N/A
Transportation/Other										Transportation/Other	12	10	15	18	9	7	30,086	27,327
											$743	$630	7,829	7,238	$165	$105	46,407	41,796

Sales Trends and Temperatures - Alliant Energy’s retail electric and gas sales volumes increased 2%3% and ~~11%~~15%, respectively, for the three months ended ~~March 31,~~June 30, 2022 compared to the same period in 2021, primarily due to COVID-19 impacts in 2021 and increases in the number of retail customers. Alliant Energy’s retail electric and gas sales volumes increased 2% and 12%, respectively, for the six months ended June 30, 2022 compared to the same period in 2021, primarily due to changes in temperatures, COVID-19 impacts in 2021 and increases in the number of retail customers.

Estimated increases (decreases) to electric and gas margins from the impacts of temperatures for the three and six months ended ~~March 31~~June 30 were as follows (in millions):


		Electric Margins			Gas Margins		Electric Margins							Gas Margins
						Three Months			Six Months			Three Months			Six Months
		2022	2021	Change				2022		2021	Change			2022	2021	Change	2022	2021	Change	2022	2021	Change	2022	2021	Change
IPL	IPL	$5	$2	$3				$3		$2	$1		IPL	$7	$9	($2)	$11	$11	$—	$2	$—	$2	$4	$2	$2
WPL	WPL	2	1	1				1		—	1		WPL	8	8	—	10	9	1	—	—	—	2	—	2
Total Alliant Energy	Total Alliant Energy	$7	$3	$4				$4		$2	$2		Total Alliant Energy	$15	$17	($2)	$21	$20	$1	$2	$—	$2	$6	$2	$4


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Electric Sales for Resale - Electric sales for resale volume changes were largely due to changes in sales in the wholesale energy markets operated by MISO. These changes are impacted by several factors, including the availability and dispatch of Alliant Energy’s EGUs and electricity demand within these wholesale energy markets. Changes in sales for resale revenues were largely offset by changes in fuel-related costs, and therefore, did not have a significant impact on electric margins.

Gas Transportation/Other - Gas transportation/other sales volume changes were largely due to changes in the gas volumes supplied to Alliant Energy’s natural gas-fired EGUs caused by the availability and dispatch of such EGUs. Changes in these transportation/other revenues did not have a significant impact on gas margins.

Utility Electric Margin Variances - The following items contributed to increased (decreased) utility electric margins for the three and six months ended ~~March 31,~~June 30, 2022 compared to the same ~~period~~periods in 2021 as follows (in millions):


				Three Months		Six Months
		Alliant Energy	IPL		WPL			Alliant Energy	IPL	WPL	Alliant Energy	IPL	WPL
Higher revenue requirements at WPL due to increasing rate base (a)	Higher revenue requirements at WPL due to increasing rate base (a)	$26	$—		$26		Higher revenue requirements at WPL due to increasing rate base (a)	$26	$—	$26	$53	$—	$53

Higher revenues at IPL due to changes in credits on customers’ bills related to excess deferred income tax benefits amortization through the tax benefit rider (offset by changes in income tax)	Higher revenues at IPL due to changes in credits on customers’ bills related to excess deferred income tax benefits amortization through the tax benefit rider (offset by changes in income tax)	6	6		—		Higher revenues at IPL due to changes in credits on customers’ bills related to excess deferred income tax benefits amortization through the tax benefit rider (offset by changes in income tax)	5	5	—	11	11	—
Estimated changes in sales volumes caused by temperatures		4	3		1

Lower revenues at IPL due to changes in the renewable energy rider (offset by changes in income tax)		(12)	(12)		—
Lower revenues at IPL related to changes in recovery amounts for energy efficiency costs through the energy efficiency rider (mostly offset by changes in energy efficiency expense)		(2)	(2)		—

Lower revenues at IPL due to changes in the renewable energy rider (mostly offset by changes in income tax)							Lower revenues at IPL due to changes in the renewable energy rider (mostly offset by changes in income tax)	(6)	(6)	—	(18)	(18)	—

Other (includes higher temperature-normalized sales in 2022)	Other (includes higher temperature-normalized sales in 2022)	11	6		5		Other (includes higher temperature-normalized sales in 2022)	5	1	6	18	9	10
		$33	$1		$32			$30	$—	$32	$64	$2	$63

(a)In December 2021, the PSCW issued an order authorizing annual base rate increases of $114 million and $15 million for WPL’s retail electric and gas customers, respectively, covering the 2022/2023 forward-looking Test Period, which was based on a stipulated agreement between WPL and certain stakeholders. The key drivers for the annual base rate increases include higher retail fuel-related costs in 2022, lower excess deferred income tax benefits in 2022 and 2023 compared to 2021, and revenue requirement impacts of increasing electric and gas rate base, including investments in solar generation. Retail electric rate changes were effective on January 1, 2022 and extend through the end of 2023. Retail gas rate changes were effective on January 1, 2022 and extend through the end of 2022. The higher fuel expense costs are recognized in electric margin and the lower amount of excess deferred income tax benefits is recognized as a reduction in income tax.


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Utility Gas Margin Variances - The following items contributed to increased (decreased) utility gas margins for the three and six months ended ~~March 31,~~June 30, 2022 compared to the same ~~period~~periods in 2021 as follows (in millions):


				Three Months		Six Months
		Alliant Energy	IPL		WPL			Alliant Energy	IPL	WPL	Alliant Energy	IPL	WPL
Higher revenues at IPL related to changes in recovery amounts for energy efficiency costs through the energy efficiency rider (mostly offset by changes in energy efficiency expense)	Higher revenues at IPL related to changes in recovery amounts for energy efficiency costs through the energy efficiency rider (mostly offset by changes in energy efficiency expense)	$9	$9		$—		Higher revenues at IPL related to changes in recovery amounts for energy efficiency costs through the energy efficiency rider (mostly offset by changes in energy efficiency expense)	$2	$2	$—	$11	$11	$—
Higher revenue requirements at WPL due to increasing rate base (refer to (a) above)	Higher revenue requirements at WPL due to increasing rate base (refer to (a) above)	7	—		7		Higher revenue requirements at WPL due to increasing rate base (refer to (a) above)	2	—	2	9	—	9
Estimated changes in sales volumes caused by temperatures		2	1		1

Other (includes higher temperature-normalized sales in 2022)	Other (includes higher temperature-normalized sales in 2022)	6	3		3		Other (includes higher temperature-normalized sales in 2022)	4	2	2	12	6	6
		$24	$13		$11			$8	$4	$4	$32	$17	$15

Other Operation and Maintenance Expenses Variances - The following items contributed to (increased) decreased other operation and maintenance expenses for the three and six months ended ~~March 31,~~June 30, 2022 compared to the same ~~period~~periods in 2021 as follows (in millions):


				Three Months		Six Months
		Alliant Energy	IPL		WPL			Alliant Energy	IPL	WPL	Alliant Energy	IPL	WPL
Higher energy efficiency expense at IPL (mostly offset by higher revenues)							Higher energy efficiency expense at IPL (mostly offset by higher revenues)	$—	$—	$—	($8)	($8)	$—

Higher energy efficiency expense at IPL (primarily offset by higher revenues)		($9)	($9)		$—

Non-utility Travero (mostly offset by higher revenues)							Non-utility Travero (mostly offset by higher revenues)	(4)	—	—	(7)	—	—
Other	Other	2	3		1		Other	(2)	(6)	2	1	(5)	5
		($7)	($6)		$1			($6)	($6)	$2	($14)	($13)	$5


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Other Income and Deductions Variances - The following items contributed to (increased) decreased other income and deductions for the three and six months ended ~~March 31,~~June 30, 2022 compared to the same ~~period~~periods in 2021 as follows (in millions):


				Three Months		Six Months
		Alliant Energy	IPL		WPL			Alliant Energy	IPL	WPL	Alliant Energy	IPL	WPL
Higher interest expense primarily due to financings completed in 2021		($5)	($2)		($1)
Higher interest expense primarily due to financings completed in 2022 and 2021 and higher interest rates							Higher interest expense primarily due to financings completed in 2022 and 2021 and higher interest rates	($9)	($3)	($2)	($14)	($5)	($3)
Higher AFUDC primarily due to changes in construction work in progress balances related to WPL’s solar generation	Higher AFUDC primarily due to changes in construction work in progress balances related to WPL’s solar generation	7	1		7		Higher AFUDC primarily due to changes in construction work in progress balances related to WPL’s solar generation	8	—	8	15	—	14
Other	Other	2	—		1		Other	(1)	2	—	1	3	1
		$4	($1)		$7			($2)	($1)	$6	$2	($2)	$12

Income Taxes - Refer to Note 8 9 for details of effective income tax rates.

Preferred Dividend Requirements of IPL - Alliant Energy’s and IPL’s preferred dividend requirements decreased for the three and six months ended ~~March 31,~~June 30, 2022 compared to the same ~~period~~periods in 2021 a due to the redemption of IPL’s 5.1% cumulative preferred stock in December 2021.

LIQUIDITY AND CAPITAL RESOURCES

The liquidity and capital resources summary included in the 2021 Form 10-K has not changed materially, except as described below.

Liquidity Position - At ~~March 31,~~June 30, 2022, Alliant Energy had ~~$67~~$19 million of cash and cash equivalents, ~~$724~~$601 million ($~~331~~273 million at the parent company, $250 million at IPL and ~~$143~~$78 million at WPL) of available capacity under the single revolving credit facility and ~~$109~~$95 million of available capacity at IPL under its sales of accounts receivable program.

Capital Structure - Capital structures at ~~March 31,~~June 30, 2022 were as follows (Long-term Debt (including current maturities) (LD); Short-term Debt (SD); Common Equity (CE)):


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Cash Flows - Selected information from the cash flows statements was as follows (in millions):


		Alliant Energy		IPL		WPL			Alliant Energy		IPL		WPL
		2022	2021	2022	2021	2022	2021		2022	2021	2022	2021	2022	2021
Cash, cash equivalents and restricted cash, January 1	Cash, cash equivalents and restricted cash, January 1	$40	$56	$34	$50	$2	$3	Cash, cash equivalents and restricted cash, January 1	$40	$56	$34	$50	$2	$3
Cash flows from (used for):	Cash flows from (used for):							Cash flows from (used for):
Operating activities	Operating activities	251	145	89	(45)	167	148	Operating activities	300	207	83	18	198	200
Investing activities	Investing activities	(223)	(38)	18	98	(217)	(119)	Investing activities	(370)	(190)	60	98	(384)	(253)
Financing activities	Financing activities	3	(145)	(79)	(92)	52	(30)	Financing activities	50	(57)	(164)	(155)	188	53
Net increase (decrease)	Net increase (decrease)	31	(38)	28	(39)	2	(1)	Net increase (decrease)	(20)	(40)	(21)	(39)	2	—
Cash, cash equivalents and restricted cash, March 31		$71	$18	$62	$11	$4	$2
Cash, cash equivalents and restricted cash, June 30								Cash, cash equivalents and restricted cash, June 30	$20	$16	$13	$11	$4	$3


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Operating Activities - The following items contributed to increased (decreased) operating activity cash flows for the ~~three~~six months ended ~~March 31,~~June 30, 2022 compared to the same period in 2021 (in millions):


		Alliant Energy	IPL	WPL		Alliant Energy	IPL	WPL
Higher collections from WPL’s increasing base rate	Higher collections from WPL’s increasing base rate	$33	$—	$33	Higher collections from WPL’s increasing base rate	$62	$—	$62
Lower contributions to qualified defined benefit pension plans					Lower contributions to qualified defined benefit pension plans	19	9	9
Natural gas cost payments from extreme temperatures in February 2021 resulting in under-recovered natural gas costs at IPL in 2021	Natural gas cost payments from extreme temperatures in February 2021 resulting in under-recovered natural gas costs at IPL in 2021	20	20	—	Natural gas cost payments from extreme temperatures in February 2021 resulting in under-recovered natural gas costs at IPL in 2021	14	14	—
Increased collections from IPL’s and WPL’s retail customers caused by temperature impacts on electric and gas sales		6	4	2
Credits issued to IPL’s retail electric customers in 2021 through its transmission cost rider for refunds received in 2020 for MISO transmission owner return on equity complaints					Credits issued to IPL’s retail electric customers in 2021 through its transmission cost rider for refunds received in 2020 for MISO transmission owner return on equity complaints	12	12	—

Timing of WPL’s fuel-related cost recoveries from customers					Timing of WPL’s fuel-related cost recoveries from customers	(37)	—	(37)

Changes in interest payments		(3)	—	(2)

Changes in income taxes paid/refunded		—	(7)	—

Timing of intercompany payments and receipts	Timing of intercompany payments and receipts	—	60	16	Timing of intercompany payments and receipts	—	(1)	(10)

Other (primarily due to other changes in working capital)	Other (primarily due to other changes in working capital)	50	57	(30)	Other (primarily due to other changes in working capital)	23	31	(26)
		$106	$134	$19		$93	$65	($2)

Investing Activities - The following items contributed to increased (decreased) investing activity cash flows for the ~~three~~six months ended ~~March 31,~~June 30, 2022 compared to the same period in 2021 (in millions):


		Alliant Energy	IPL	WPL		Alliant Energy	IPL	WPL
(Higher) lower utility construction and acquisition expenditures (a)					(Higher) lower utility construction and acquisition expenditures (a)	($124)	$19	($143)
Changes in the amount of cash receipts on sold receivables	Changes in the amount of cash receipts on sold receivables	($94)	($94)	$—	Changes in the amount of cash receipts on sold receivables	(62)	(62)	—
(Higher) lower utility construction and acquisition expenditures (a)		(93)	10	(104)
Other	Other	2	4	6	Other	6	5	12
		($185)	($80)	($98)		($180)	($38)	($131)

(a)Largely due to higher expenditures for WPL’s solar generation, partially offset by lower expenditures for IPL’s and WPL’s electric and gas distribution systems.

Construction and Acquisition Expenditures - Alliant Energy, IPL and WPL are currently evaluating potential impacts from cost pressures prevalent in the solar generation and battery storage markets ~~as well as~~and the pending U.S. Department of Commerce investigation ~~discussed in “2022 Highlights~~,” on the timing and estimated costs for IPL’s and WPL’s planned development and acquisition of additional renewable energy, which could impact their anticipated future construction and acquisition expenditures. Refer to “2022 Highlights” for further discussion of the U.S. Department of Commerce investigation, as well as information on IPL’s revised fixed cost cap filing with the IUB in June 2022 for up to 400 MW of solar generation and approximately 75 MW of battery storage.

Financing Activities - The following items contributed to increased (decreased) financing activity cash flows for the ~~three~~six months ended ~~March 31,~~June 30, 2022 compared to the same period in 2021 (in millions):


		Alliant Energy	IPL	WPL		Alliant Energy	IPL	WPL
Higher net proceeds from issuance of long-term debt	Higher net proceeds from issuance of long-term debt	$650	$—	$—	Higher net proceeds from issuance of long-term debt	$650	$—	$—

Capital contributions from noncontrolling interest					Capital contributions from noncontrolling interest	29	—	29
Higher payments to retire long-term debt	Higher payments to retire long-term debt	(300)	—	—	Higher payments to retire long-term debt	(300)	—	—
Net changes in the amount of commercial paper outstanding	Net changes in the amount of commercial paper outstanding	(186)	—	30	Net changes in the amount of commercial paper outstanding	(262)	—	51
(Higher) lower common stock dividends	(Higher) lower common stock dividends	(5)	20	(2)	(Higher) lower common stock dividends	(12)	40	(4)
Higher capital contributions from WPL’s parent company, Alliant Energy		—	—	55

Higher (lower) capital contributions from IPL’s and WPL’s parent company, Alliant Energy					Higher (lower) capital contributions from IPL’s and WPL’s parent company, Alliant Energy	—	(50)	55
Other	Other	(11)	(7)	(1)	Other	2	1	4
		$148	$13	$82		$107	($9)	$135

IPL and WPL Solar Project Tax Equity Financing - Alliant Energy, IPL and WPL are currently evaluating potential impacts from cost pressures prevalent in the solar generation and battery storage markets, as well as the U.S. Department of Commerce investigation discussed in “2022 Highlights,” on the timing and estimated costs for IPL’s and WPL’s planned development and acquisition of additional renewable energy, which could result in changes to their proposed solar project tax equity financing.

Common Stock Issuances - Refer to Note 5 6 for discussion of common stock issuances by Alliant Energy in 2022.


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Long-term Debt - Refer to Note 67 (b) for discussion of AEF’s issuance of long-term debt in 2022. AEF’s current term loan credit agreement that expires in March 2024 includes an option to increase the amount outstanding up to $400 million in aggregate with the same maturity, subject to bank approval, and includes substantially the same financial covenants that are included in Alliant Energy’s credit facility agreement.

Impact of Credit Ratings on Liquidity and Collateral Obligations -

Ratings Triggers - In June 2022, Standard & Poor’s Ratings Services changed WPL’s outlook from stable to negative. This outlook change is not expected to have a material impact on Alliant Energy and WPL’s liquidity or collateral obligations.


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Off-Balance Sheet Arrangements and Certain Financial Commitments - A summary of Alliant Energy’s and IPL’s off-balance sheet arrangements and Alliant Energy’s, IPL’s and WPL’s contractual obligations is included in the 2021 Form 10-K and has not changed materially from the items reported in the 2021 Form 10-K, except for the items described in Notes 34, 67 and 1 23.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Quantitative and Qualitative Disclosures About Market Risk are reported in the 2021 Form 10-K and have not changed materially.

ITEM 4. CONTROLS AND PROCEDURES

Alliant Energy’s, IPL’s and WPL’s management evaluated, with the participation of each of Alliant Energy’s, IPL’s and WPL’s Chief Executive Officer, Chief Financial Officer and Disclosure Committee, the effectiveness of the design and operation of Alliant Energy’s, IPL’s and WPL’s disclosure controls and procedures (as defined in Rule 13a-15(e) of the Securities Exchange Act of ~~1934)~~1934, as amended) as of ~~March 31,~~June 30, 2022 pursuant to the requirements of the Securities Exchange Act of 1934, as amended. Based on their evaluation, the Chief Executive Officer and the Chief Financial Officer concluded that Alliant Energy’s, IPL’s and WPL’s disclosure controls and procedures were effective as of the quarter ended ~~March 31,~~June 30, 2022.

There was no change in Alliant Energy’s, IPL’s and WPL’s internal control over financial reporting that occurred during the quarter ended ~~March 31,~~June 30, 2022 that has materially affected, or is reasonably likely to materially affect, Alliant Energy’s, IPL’s or WPL’s internal control over financial reporting.

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

None. SEC regulations require Alliant Energy, IPL and WPL to disclose information about certain proceedings arising under federal, state or local environmental provisions when a governmental authority is a party to the proceedings and such proceedings involve potential monetary sanctions that Alliant Energy, IPL and WPL reasonably believe will exceed a specified threshold. Pursuant to the SEC regulations, Alliant Energy, IPL and WPL use a threshold of $1 million for purposes of determining whether disclosure of any such proceedings is required. Applying this threshold, there are no environmental matters to disclose for this period.

ITEM 1A. RISK FACTORS

The risk factors described in Item 1A in the 2021 Form 10-K have not changed materially.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

A summary of Alliant Energy common stock repurchases for the quarter ended ~~March 31,~~June 30, 2022 was as follows:

Total Number Average Price Total Number of Shares Maximum Number (or Approximate
of Shares Paid Per Purchased as Part of Dollar Value) of Shares That May
Period Purchased (a) Share Publicly Announced Plan Yet Be Purchased Under the Plan (a)
January 1 through January 31 4,227 $60.98 — N/A
February 1 through February 28 2,918 56.38 — N/A
March 1 through March 31 594 60.58 — N/A
7,739 59.22 —

Total Number

Average Price

Total Number of Shares

Maximum Number (or Approximate

of Shares

Paid Per

Purchased as Part of

Dollar Value) of Shares That May

Period

Purchased (a)

Publicly Announced Plan

Yet Be Purchased Under the Plan (a)

April 1 through April 30

4,080

$63.56

—

N/A

May 1 through May 31

2,849

58.90

—

N/A

June 1 through June 30

58.30

—

N/A

6,981

61.62

—

(a)All shares were purchased on the open market and held in a rabbi trust under the Alliant Energy Deferred Compensation Plan. There is no limit on the number of shares of Alliant Energy common stock that may be held under the Deferred Compensation Plan, which currently does not have an expiration date.


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ITEM 6. EXHIBITS

The following Exhibits are filed ~~herewith or incorporated herein by reference.~~herewith.


Exhibit Number			Description
~~4.1~~			Indenture, dated as of February 28, 2022, among AEF, Alliant Energy, as guarantor, and The Bank of New York Mellon Trust Company, National Association, as trustee (incorporated by reference to Exhibit 4.1 to Alliant Energy’s Form 8-K, filed March 1, 2022 (File No. 1-9894))
~~10.1~~			Term Loan Credit Agreement, dated as of March 3, 2022, among AEF, Alliant Energy, U.S. Bank National Association and the lender parties set forth therein (incorporated by reference to Exhibit 10.1 to Alliant Energy’s Form 8-K, filed March 4, 2022 (File No. 1-9894))
31.1			Certification of the Chief Executive Officer for Alliant Energy
31.2			Certification of the Chief Financial Officer for Alliant Energy
31.3			Certification of the Chief Executive Officer for IPL
31.4			Certification of the Chief Financial Officer for IPL
31.5			Certification of the Chief Executive Officer for WPL
31.6			Certification of the Chief Financial Officer for WPL
32.1			Written Statement of the Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C.§1350 for Alliant Energy
32.2			Written Statement of the Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C.§1350 for IPL
32.3			Written Statement of the Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C.§1350 for WPL
101.INS			Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
101.SCH			Inline XBRL Taxonomy Extension Schema Document
101.CAL			Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB			Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE			Inline XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF			Inline XBRL Taxonomy Extension Definition Linkbase Document
104			Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, Alliant Energy Corporation, Interstate Power and Light Company and Wisconsin Power and Light Company have each duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized on the ~~29th~~5th day of ~~April~~August 2022.


ALLIANT ENERGY CORPORATION
Registrant

By: /s/ Benjamin M. Bilitz			Chief Accounting Officer and Controller
Benjamin M. Bilitz			(Principal Accounting Officer and Authorized Signatory)


INTERSTATE POWER AND LIGHT COMPANY
Registrant

By: /s/ Benjamin M. Bilitz			Chief Accounting Officer and Controller
Benjamin M. Bilitz			(Principal Accounting Officer and Authorized Signatory)


WISCONSIN POWER AND LIGHT COMPANY
Registrant

By: /s/ Benjamin M. Bilitz			Chief Accounting Officer and Controller
Benjamin M. Bilitz			(Principal Accounting Officer and Authorized Signatory)


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