UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

 

FORM 10-Q

 

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

 
 
For the quarterly period ended **June 30, 2005**

 
or

o

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

 
ACT OF 1934

 
 
For the transition period from _______ to _______

 
 

Commission

Name of Registrant, State of Incorporation,

IRS Employer

File Number

Address of Principal Executive Offices and Telephone Number

Identification Number

1-9894

ALLIANT ENERGY CORPORATION

39-1380265

 

(a Wisconsin corporation)

 

 

4902 N. Biltmore Lane

 

 

Madison, Wisconsin 53718

 

 

Telephone (608)458-3311

 

 

 

 

0-4117-1

INTERSTATE POWER AND LIGHT COMPANY

42-0331370

 

(an Iowa corporation)

 

 

Alliant Energy Tower

 

 

Cedar Rapids, Iowa 52401

 

 

Telephone (319)786-4411

 

 

 

 

0-337

WISCONSIN POWER AND LIGHT COMPANY

39-0714890

 

(a Wisconsin corporation)

 

 

4902 N. Biltmore Lane

 

 

Madison, Wisconsin 53718

 

 

Telephone (608)458-3311

 

 

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 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.

 

Indicate by check mark whether the registrants (1) have 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 registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days.  Yes [ X ]     No [   ]

 

Indicate by check mark whether the registrants are accelerated filers (as defined in Rule 12b-2 of the Exchange Act).

Alliant Energy Corporation

Yes [ X ]

No [  

]

Interstate Power and Light Company

Yes [  

]

No [ X ]

Wisconsin Power and Light Company

Yes [  

]

No [ X ]

 

Number of shares outstanding of each class of common stock as of July 29, 2005:

Alliant Energy Corporation

Common stock, $0.01 par value, 116,469,272 shares outstanding

Interstate Power and Light Company

Common stock, $2.50 par value, 13,370,788 shares outstanding (all of which

 

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 of which are

 

owned beneficially and of record by Alliant Energy Corporation)

 

**TABLE OF CONTENTS**

 

Page

Part I.**

Financial Information**

  2

Item 1.

Condensed Consolidated Financial Statements (Unaudited)

2

 

Alliant Energy Corporation:

 

 

Condensed Consolidated Statements of Income for the Three and Six Months Ended

 

 

    June 30, 2005 and 2004

2

 

Condensed Consolidated Balance Sheets as of June 30, 2005 and December 31, 2004

3

 

Condensed Consolidated Statements of Cash Flows for the Six Months Ended June 30, 2005 and 2004

5

 

Notes to Condensed Consolidated Financial Statements

6

 

Interstate Power and Light Company:

 

 

Condensed Consolidated Statements of Income for the Three and Six Months Ended

 

 

    June 30, 2005 and 2004

23

 

Condensed Consolidated Balance Sheets as of June 30, 2005 and December 31, 2004

24

 

Condensed Consolidated Statements of Cash Flows for the Six Months Ended June 30, 2005 and 2004

26

 

Notes to Condensed Consolidated Financial Statements

27

 

Wisconsin Power and Light Company:

 

 

Condensed Consolidated Statements of Income for the Three and Six Months Ended

 

 

    June 30, 2005 and 2004

30

 

Condensed Consolidated Balance Sheets as of June 30, 2005 and December 31, 2004

31

 

Condensed Consolidated Statements of Cash Flows for the Six Months Ended June 30, 2005 and 2004

33

 

Notes to Condensed Consolidated Financial Statements

34

Item 2.

Management’s Discussion and Analysis of Financial Condition and Results of Operations

37

Item 3.

Quantitative and Qualitative Disclosures About Market Risk

56

Item 4.

Controls and Procedures

56

Part II.

Other Information

56

Item 1.

Legal Proceedings

56

Item 2.

Unregistered Sales of Equity Securities and Use of Proceeds

56

Item 4.

Submission of Matters to a Vote of Security Holders

57

Item 5.

Other Information

57

Item 6.

Exhibits

58

 

Signatures

59

1

**PART I. FINANCIALINFORMATION**

**ITEM 1. CONDENSED CONSOLIDATEDFINANCIAL STATEMENTS (UNAUDITED)**

**ALLIANT ENERGY CORPORATION** |