Exhibit 99.2

 Written Statement of the Executive Vice President and Chief Financial Officer
                    Pursuant to 18 U.S.C. Section 1350

Solely for the purposes of complying with 18 U.S.C. Section 1350, I, the
undersigned Executive Vice President and Chief Financial Officer
of Alliant Energy Corporation (the "Company"), hereby certify,
based on my knowledge, that the Annual Report on Form 10-K of the
Company for the year ended December 31, 2002 (the "Report") fully
complies with the requirements of Section 13(a) of the Securities
Exchange Act of 1934 and that information contained in the Report
fairly presents, in all material respects, the financial
condition and results of operations of the Company.


/s/ Thomas M. Walker
- --------------------
Thomas M. Walker
March 25, 2003