Alliant Energy Corporation Utility Subsidiaries Declare Preferred Stock Dividends

    MADISON, Wis., Aug. 15 /EMWNews/ -- Quarterly dividends on

preferred stock have been declared by the Board of Directors of Alliant

Energy Corporation's (NYSE: LNT) utility subsidiaries.



    



    Wisconsin Power and Light Company Preferred Stock Dividends



    The Board of Directors of Wisconsin Power and Light Company (WPL) has

declared dividends for its preferred stock shareowners of record on August

29, 2008. The dividends, which are payable on September 15, 2008, are as

follows:






     $1.10 per share on the 4.40% series

     $1.125 per share on the 4.50% series

     $1.19 per share on the 4.76% series

     $1.20 per share on the 4.80% series

     $1.24 per share on the 4.96% series

     $1.55 per share on the 6.20% series

     $0.40625 per share on the 6.50% series



    Interstate Power and Light Company Preferred Stock Dividends



    The Board of Directors of Interstate Power and Light Company (IPL) has

declared dividends for its preferred stock shareowners of record on August

29, 2008. The dividends, which are payable on September 15, 2008, are as

follows:






     $0.523438 per share on the 8.375% Series B Cumulative Preferred Stock

     $0.443750 per share on the 7.10% Series C Cumulative Preferred Stock





    WPL and IPL are subsidiaries of Alliant Energy Corporation.

    Alliant Energy is an energy-services provider with subsidiaries serving

approximately 1 million electric and over 400,000 natural gas customers.

Providing its customers in the Midwest with regulated electric and natural

gas service is the company's primary focus. Alliant Energy, headquartered

in Madison, Wis., is a Fortune 1000 company traded on the New York Stock

Exchange under the symbol LNT. For more information, visit the company's

Web site at http://www.alliantenergy.com.