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 215,000 homes and businesses they collectively serve.

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

Owned Generation (2023)


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 (2023)

Bishop Hill III Wind Energy Center, Wind, 132 MW

WPS, System Energy, 75 MW

Point Beach Nuclear Plant, Nuclear, 117 MW

Point Beach Solar, Solar, 100 MW

Nelson Energy Center, Gas, 90 MW

Butler Ridge, Wind, 54 MW

Top of Iowa II, Wind, 50 MW

Member-Owned Generation, Gas, Oil, 40 MW

Barton I, Wind, 30 MW

Forward Wind Energy Center, Wind, 27.5 MW

Kimberly Hydro, Hydroelectric, 2.1 MW

Richland Center Renewable Energy, Biogas, 1.8 MW

Jefferson Solar, Solar, 1 MW

Community Solar Gardens, Solar, 0.6 MW

John Street Hydro, Hydroelectric, 0.5 MW