Power Supply

Delivering a diverse, flexible power supply is WPPI Energy’s core purpose.

Through our joint action agency, 51 member utilities own generation and transmission resources, make joint power purchases, and share the cost of implementing new technologies — all of which help members maintain reliable service for the 200,000 homes and businesses they collectively serve.

WPPI Energy’s power supply is diverse, with stable and competitive costs.

Owned Generation (2020)


South Fond du Lac Units 1 & 4, Gas, 154 MW

Boswell Unit 4, Coal, 117 MW

Elm Road Generating Station, Coal, 106 MW

Island Street Peaking Plant, Gas, 52 MW

Worthington Wind Turbines, Wind, 2 MW

Purchased Power (2020)

WPS, slice of system energy

Bishop Hill III Wind Energy Center, a wind farm in northern Illinois

Point Beach Nuclear Plant, near Two Rivers, Wisconsin

Nelson Energy Center, a combined cycle plant in northern Illinois

Butler Ridge, a wind farm in Mayville, Wisconsin

WEPCO, slice of system energy

Top of Iowa II, a wind farm near Kensett, Iowa

Member-Owned Generation, gas and oil-fired generation

Barton I, a wind farm in Worth County, Iowa

Forward Wind Energy Center, wind farm near Brownsville, Wisconsin

Kimberly Hydro in Kimberly, Wisconsin

Richland Center Renewable Energy, a wastewater digester in the member community of Richland Center, Wisconsin, owned by Foremost Farms USA and Schreiber Foods

Jefferson Solar in the member community of Jefferson, Wisconsin, owned by Half Moon Ventures LLC of Chicago

Community Solar Gardens in member communities River Falls and New Richmond, Wisconsin

John Street Hydro in Appleton, Wisconsin