Alliant Energy Corporation : ALLIANT ENERGY CORPORATION ANNOUNCES FIRST QUARTER 2013 EARNINGS RELEASE AND CONFERENCE CALL

   Alliant Energy Corporation : ALLIANT ENERGY CORPORATION ANNOUNCES FIRST
              QUARTER 2013 EARNINGS RELEASE AND CONFERENCE CALL

MADISON, Wis. - April 19, 2013 - Alliant Energy Corporation (NYSE: LNT) has
scheduled its first quarter 2013 earnings release for Friday, May 3th, before
the stock market opens. A conference call to review the year-end results is
scheduled for the same day at 9:00 a.m. CT.

Alliant Energy will webcast the event live at www.alliantenergy.com/investors.
The call is open to the public and will be hosted by Patricia Kampling,
Chairman, President and CEO, and Tom Hanson, Senior Vice President and CFO.
Individuals who would like to participate in the conference call can do so by
dialing (888) 221-9591 (United States & Canada) or (913) 312-1434
(international), passcode 8244179.

A replay of the call will be available through May 10, 2013, at (888) 203-1112
(United States & Canada) or (719) 457-0820 (international). Callers should
reference passcode 8244179. An archive of the webcast will also be available
on the company's website at www.alliantenergy.com/investors.

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Source: Alliant Energy Corporation via Thomson Reuters ONE
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