Power plants in Grant County, South Dakota
3 operating power plants in Grant County, South Dakota, with 908 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Largest power plants in Grant County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | Big StoneCoal | 450 | 2,030 | 51.4% |
| 2 | Dakota Range WindWind | 304 | 1,017 | 38.2% |
| 3 | Dakota Range III Wind ProjectWind | 154 | 619 | 46.0% |
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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