April 22 (Reuters) - Wisconsin Power and Light Co (WPL) reached a settlement with the U.S. Environmental Protection Agency (EPA) on emissions control measures and agreed to invest more than $1 billion in renewable energy.
WPL, a unit of Alliant Energy Corp said it would pay a civil penalty of $2.45 million to resolve allegations that it violated the Clean Air Act.
Under the settlement, the company will install pollution controls at the three largest units at coal-fired plants near Portage, Sheboygan and Cassville.
Earlier, WPL had said it would retire its Nelson Dewey coal-fired units Units 1 & 2 located in Cassville, Wisconsin, with total capacity of about 200 megawatts (MW); and 70 MW Edgewater Unit 3, located in Sheboygan.
The company said it would either convert its Edgewater Unit 4 to natural gas or retire it by the end of 2018.