Power plants in Rock County, Wisconsin
10 operating power plants in Rock County, Wisconsin, with 1,826 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Plants
10
Nameplate capacity
1,826 MW
Net generation, 2025
8.33 TWh
9 of 10 plants reported
Largest power plants in Rock County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | West Riverside Energy CenterNatural gas | 728 | 4,367 | 68.5% |
| 2 | Riverside Energy CenterNatural gas | 675 | 3,308 | 56.0% |
| 3 | Darien SolarSolar | 250 | 315* | – |
| 4 | Paddock SolarSolar | 65 | 135 | 23.7% |
| 5 | Albany Solar (WI)Solar | 50 | 98.0 | 22.4% |
| 6 | North RockSolar | 50 | 101 | 23.0% |
| 7 | Beloit Memorial Hospital Power PlantNatural gas | 3.0 | 0.1 | 0.6% |
| 8 | Janesville Community SolarSolar | 2.3 | 2.6 | – |
| 9 | HQC Rock River Solar Power Gen StationSolar | 2.1 | – | – |
| 10 | Rock County Customer Hosted SolarSolar | 1.4 | 1.6 | – |
* Fewer than 12 months of 2025 reported, so the total is partial.
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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