Power plants in Winnebago County, Iowa

7 operating power plants in Winnebago County, Iowa, with 333 MW of nameplate capacity, largest first. From EIA-860M, August 2026.

Plants

7

Nameplate capacity

333 MW

Net generation, 2025

1.07 TWh

Largest

Golden Plains

200 MW

Largest power plants in Winnebago County

#PlantMW2025 net generation, GWhGWh, 2025Capacity factorOperator
1Golden PlainsWind20073742.1%Interstate Power and Light Co
2Crystal Lake 3 LLCWind6623740.9%Crystal Lake 3 LLC
3Forest City Light PlantOil220.40.2%City of Forest City- (IA)
4Winnebago Wind Power ProjectWind2061.335.0%Avangrid Power LLC
5Lake MillsOil180.10.1%City of Lake Mills - (IA)
6Lake Mills Gas RecoveryLandfill gas4.031.790.4%WM Renewable Energy LLC
7Forest City SolarSolar3.04.617.6%Green Street Power Partners

MW is the nameplate capacity of operating generators and batteries. Source: EIA-860M August 2026, published 2026-09-24, and EIA-923 2025. Page updated 2026-10-04. Data sources

More power plant lists for Iowa

Other counties in Iowa