Alliant Energy Corporation to Issue 2007 Financial Guidance

MADISON, Wis., Dec. 14 /PRNewswire-FirstCall/ — Alliant Energy Corporation (NYSE:LNT) announced today its plan to issue 2007 financial guidance for Wednesday, December 20, before the stock market opens. A conference call to review the 2007 financial guidance is scheduled for the same day at 12:00 p.m. CT.


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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 (877) 668-4404 (United States & Canada), no pass code required.


A replay of the call will be available through December 27, 2006, at (800) 642-1687 (domestic) or (706) 645-9291 (international). Callers should reference conference ID# 4619212. 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 420,000 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/ .