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Rate Cases

Learn about Alliant Energy's utility rates and rate requests, and download official filing documents.

Iowa Utility Rates
View information regarding rate cases filed by Interstate Power and Light Company with the Iowa Utilities Board.

Minnesota Electric Rates
On May 7, 2010, IPL filed its first electric rate case in Minnesota since 2005.

Wisconsin Utility Rates
View information regarding rate cases filed by Wisconsin Power and Light with the Public Service Commission of Wisconsin.