Power plants in Cass County, Iowa
6 operating power plants in Cass County, Iowa, with 502 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Largest power plants in Cass County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | Rolling Hills Wind FarmWind | 484 | 1,577 | 37.2% |
| 2 | AtlanticNatural gas | 10 | 0.1 | 0.1% |
| 3 | AnitaOil | 2.9 | 0.1 | 0.3% |
| 4 | RosemanWind | 1.8 | 6.8 | 43.4% |
| 5 | Green Energy MachineWind | 1.7 | 6.0 | 40.0% |
| 6 | WiotaWind | 1.6 | 5.2 | 37.4% |
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
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