Wisconsin Public Service Corporation

The company serves more than 450,000 electric customers and more than 333,000 natural gas customers[1] in 27 counties in eastern, northeastern northern, and central Wisconsin, and a small portion of Michigan's Upper Peninsula.

WPS owns two coal, and one natural gas power generation plants.

It also owns 15 hydroelectric power plants on the Wisconsin, Tomahawk, Peshtigo and Menominee rivers, and a wind farm in northeastern Iowa.

The Weston 4 unit was built in 2008 and is considered to be one of the cleanest coal-fired power plants in the country.

It is a natural gas–fired power plant, has a capacity of nearly 500 megawatts and is located near Kaukauna, Wisconsin.