Utility Rate Cases
Read the latest news about Alliant Energy's utility rate requests, and download official filing documents.
On March 17, 2009, Interstate Power and Light Company filed a request to increase electric rates with the Iowa Utilities Board.
Wisconsin Electric & Gas Rates
On May 8, 2009, Wisconsin Power and Light Company filed a request with the Public Service Commission of Wisconsin to adjust its retail electric and natural gas rates, effective January 1, 2010.