Alliant Energy Corporation Announces First Quarter 2008 Earnings Release and Conference Call

MADISON, Wis., April 30 /PRNewswire-FirstCall/ — Alliant Energy Corporation (NYSE:LNT) has scheduled its first quarter 2008 earnings release for Thursday, May 1, before the stock market opens. A conference call to review the first quarter results is scheduled for the same day at 9:00 a.m. CT.


(Logo: http://www.newscom.com/cgi-bin/prnh/20020405/LNTLOGO)


Alliant Energy will webcast the event live at http://www.alliantenergy.com/investors. The call is open to the public and will be hosted by Bill Harvey, Chairman, President and CEO, and Eliot Protsch, Senior Executive Vice President and CFO. Individuals who would like to participate in the conference call can do so by dialing (866) 454-4207 (United States & Canada) or (913) 312-6697 (international), passcode 3497403.


A replay of the call will be available through May 8, 2008, at (888) 203-1112 (United States & Canada) or (719) 457-0820 (international). Callers should reference passcode 3497403. An archive of the webcast will also be available on the company’s website at http://www.alliantenergy.com/investors.


Alliant Energy Corporation 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 electricity 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/.


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Source: Alliant Energy Corporation


CONTACT: Media, Rob Crain, +1-608-458-4469, or Investor Relations, Jamie
Freeman, +1-608-458-3274, both of Alliant Energy Corporation


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