FILER: COMPANY DATA: COMPANY CONFORMED NAME: ALLIANT ENERGY CORPORATION CENTRAL INDEX KEY: STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC AND OTHER SERVICES COMB. [4931] IRS NUMBER: 391380265 STATE OF INCORPORATION: WI FISCAL YEAR END: 12/31 FILING VALUES: FORM TYPE: 35-CERT SEC ACT: SEC FILE NUMBER: 070-9317 FILM NUMBER: BUSINESS ADDRESS: STREET 1: 4902 N Biltmore Lane CITY: MADISON STATE: WI ZIP: 53718 BUSINESS PHONE: 608-458-3311 MAILING ADDRESS STREET 1: P. O. BOX 77007 CITY: MADISON STATE: WI ZIP: 53707 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D. C. 20549 PUBLIC UTILITY HOLDING COMPANY ACT OF 1935 File No. 70-9317 REPORT PERIOD July 1, 2002 through September 30, 2002 In the Matter of ALLIANT ENERGY CORPORATION, ET AL ALLIANT ENERGY CORPORATION ("AEC") hereby certifies on behalf of itself and Interstate Power and Light Company ("IPL"), and Alliant Energy Corporate Services, Inc. "Services") that during the period from July 1, 2002 through September 30, 2002 (the "Reporting Period"): 1. For each of the companies participating in the Utility Money Pool during the Reporting Period, the maximum principal amount of short-term borrowings outstanding from the Utility Money Pool, sources other than the Utility Money Pool, and the maximum total short-term borrowings outstanding during the Reporting Period, and the Securities and Exchange Commission ("SEC") borrowing limit for each participant as of the end of the Reporting Period were as follows: Maximum Maximum Other Maximum Money Pool Short-Term Total SEC Company Borrowings Borrowings Borrowings Limit IPL (*) 202,704,769 0.00 202,704,769 250,000,000 WP&L (**) 67,459,376 0.00 67,459,376 NA SERVICES 117,427,251 0.00 117,427,251 NA (*) IES Utilities and Interstate Power Company merged as of January 1, 2002 (**) All borrowings by WP&L from the Money Pool are exempt under Rule 52(a) and are shown here for information purposes only. 2. During the Reporting Period, the weighted average interest rate for borrowings through the Money Pool was 1.83 %. 3. The maximum amount of AEC's short-term borrowings on behalf of itself and the above named participants in the Utility Money Pool during the Reporting Period, and its SEC limit as of the end of the Reporting Period, were as follows: Maximum Maximum Maximum Loans to Corporate Short-Term SEC Money Pool Borrowings Borrowings Limit AEC 210,278,047 117,324,157 130,735,000 1,000,000,000 ________________ Said transactions have been carried out in accordance with the terms and conditions of, and for the purpose represented in, the Form U-1 Application-Declaration, as amended, of AEC, et al, in File 70-9317, and in accordance with the terms and conditions of the SEC's order dated December 15, 2000, permitting said Application-Declaration to become effective. DATED: November 13, 2002 ALLIANT ENERGY CORPORATION INTERSTATE POWER AND LIGHT COMPANY WISCONSIN POWER AND LIGHT COMPANY ALLIANT ENERGY CORPORATE SERVICES INC. BY: ALLIANT ENERGY CORPORATION /s/ Thomas L. Hanson BY: -------------------------------------- Thomas L. Hanson Vice President, Treasurer and Corporate Secretary