Power plants in Jefferson County, Colorado
6 operating power plants in Jefferson County, Colorado, with 277 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Largest power plants in Jefferson County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | Plains End II LLCNatural gas | 118 | 18.8 | 1.8% |
| 2 | Plains EndNatural gas | 114 | 9.9 | 1.0% |
| 3 | Colorado Energy Nations CompanyNatural gas | 35 | 119 | 38.8% |
| 4 | Gross Hydro PlantHydro | 8.0 | 9.2 | 13.1% |
| 5 | Mtn. Solar 4 (CSG)Solar | 1.5 | 3.3 | 25.4% |
| 6 | Jeffco Community Solar Gardens LLCSolar | 1.2 | 2.4 | 22.6% |
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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