-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, BgIjMrYJUJZg/gEtfNdCJKPtXXFaaiewkY751jCkwY/rs922t36lWVpJjO+d9jUJ c1LeWK1fybNooD7s5Skd/w== 0000897069-08-001000.txt : 20080604 0000897069-08-001000.hdr.sgml : 20080604 20080604145254 ACCESSION NUMBER: 0000897069-08-001000 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20080601 ITEM INFORMATION: Entry into a Material Definitive Agreement FILED AS OF DATE: 20080604 DATE AS OF CHANGE: 20080604 FILER: COMPANY DATA: COMPANY CONFORMED NAME: ALLIANT ENERGY CORP CENTRAL INDEX KEY: 0000352541 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC & OTHER SERVICES COMBINED [4931] IRS NUMBER: 391380265 STATE OF INCORPORATION: WI FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-09894 FILM NUMBER: 08880255 BUSINESS ADDRESS: STREET 1: 4902 NORTH BILTMORE LANE STREET 2: PO BOX 77007 CITY: MADISON STATE: WI ZIP: 53707-1007 BUSINESS PHONE: 608-458-3314 MAIL ADDRESS: STREET 1: 4902 NORTH BILTMORE LANE STREET 2: PO BOX 77007 CITY: MADISON STATE: WI ZIP: 53707-1007 FORMER COMPANY: FORMER CONFORMED NAME: INTERSTATE ENERGY CORP DATE OF NAME CHANGE: 19980427 FORMER COMPANY: FORMER CONFORMED NAME: WPL HOLDINGS INC DATE OF NAME CHANGE: 19920703 FILER: COMPANY DATA: COMPANY CONFORMED NAME: WISCONSIN POWER & LIGHT CO CENTRAL INDEX KEY: 0000107832 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC & OTHER SERVICES COMBINED [4931] IRS NUMBER: 390714890 STATE OF INCORPORATION: WI FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 000-00337 FILM NUMBER: 08880256 BUSINESS ADDRESS: STREET 1: 4902 NORTH BILTMORE LANE STREET 2: PO BOX 77007 CITY: MADISON STATE: WI ZIP: 53707-1007 BUSINESS PHONE: 608-4583314 MAIL ADDRESS: STREET 1: 4902 N BILTMORE LANE STREET 2: PO BOX 77007 CITY: MADISON STATE: WI ZIP: 53707-1007 FILER: COMPANY DATA: COMPANY CONFORMED NAME: INTERSTATE POWER & LIGHT CO CENTRAL INDEX KEY: 0000052485 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC & OTHER SERVICES COMBINED [4931] IRS NUMBER: 420331370 STATE OF INCORPORATION: IA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-04117 FILM NUMBER: 08880257 BUSINESS ADDRESS: STREET 1: 200 FIRST ST SE STREET 2: ALLIANT ENERGY TOWER CITY: CEDAR RAPIDS STATE: IA ZIP: 52401 BUSINESS PHONE: 3193984411 MAIL ADDRESS: STREET 1: 200 FIRST ST SE STREET 2: ALLIANT ENERGY TOWER CITY: CEDAR RAPIDS STATE: IA ZIP: 52401 FORMER COMPANY: FORMER CONFORMED NAME: IES UTILITIES INC DATE OF NAME CHANGE: 20020103 FORMER COMPANY: FORMER CONFORMED NAME: IES UTILITIES INC DATE OF NAME CHANGE: 19940107 FORMER COMPANY: FORMER CONFORMED NAME: IOWA ELECTRIC LIGHT & POWER CO DATE OF NAME CHANGE: 19920703 8-K 1 cmw3577.htm FORM 8-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

_________________

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of
the Securities Exchange Act of 1934

_________________

	Date of Report
	(Date of earliest
	event reported):	June 1, 2008

Commission	Name of Registrant, State of Incorporation, Address of	IRS Employer
File Number	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 8-K is separately filed by Alliant Energy Corporation, Interstate Power and Light Company and Wisconsin Power and Light Company.

_________________

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

[ ]	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

[ ]	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

[ ]	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

[ ]	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 1.01.

Entry into a Material Definitive Agreement.

Alliant Energy Corporate Services, Inc. (“Corporate Services”), a wholly-owned subsidiary of Alliant Energy Corporation (the “Company”), as agent for and on behalf of the Company’s public utility subsidiaries Interstate Power and Light Company (“IPL”) and Wisconsin Power and Light Company (“WPL”), entered into a Master Supply Agreement (the “Agreement”) with Vestas-American Wind Technology, Inc. (“Vestas”) effective June 1, 2008. Pursuant to the terms and conditions of the Agreement, Corporate Services has agreed on behalf of IPL and WPL to purchase from Vestas wind turbines and related turbine equipment, as well as related services with respect to the maintenance, servicing and repair of the wind turbines. As of June 1, 2008, the total purchase price for the wind turbine equipment under the Agreement is expected to be approximately $817 million (which price includes US$350 million and 300 million Euros), subject to adjustment. The wind turbine equipment is expected to be used for wind projects including the Whispering Willow Wind Farm in Franklin County, Iowa for IPL and other anticipated utility-owned wind generation projects.

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 hereunto duly authorized.

	ALLIANT ENERGY CORPORATION
	By: /s/ Patricia L. Kampling
Date: June 3, 2008	Patricia L. Kampling
	Vice President and Treasurer
	INTERSTATE POWER AND LIGHT COMPANY
	By: /s/ Patricia L. Kampling
Date: June 3, 2008	Patricia L. Kampling
	Vice President and Treasurer
	WISCONSIN POWER AND LIGHT COMPANY
	By: /s/ Patricia L. Kampling
Date: June 3, 2008	Patricia L. Kampling
	Vice President and Treasurer

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