SD · State grid profile
South Dakota power grid
South Dakota's operating portfolio is led by Wind, followed by Oil & gas. Its 54 plants represent 7,661 MW of nameplate capacity. The dataset also reports 137 MW of proposed capacity.
Final 2024 state totalsPreliminary 2025 facilitiesCommunity-reported data centers
Coverage quality
What is complete here?
Generation portfolio
South Dakota capacity by fuel
Wind45.1%3,457 MW
Oil & gas24.7%1,891 MW
Hydro21.5%1,648 MW
Coal5.9%450 MW
Solar2.7%209 MW
Biomass0.1%5 MW
Storage0%1 MW
Facility intelligence
Largest South Dakota power plants
| Plant | Primary fuel | Location | Utility | Operating capacity |
|---|---|---|---|---|
| OahePlant 3356 | Hydro | Pierre, SDHughes County | USACE-Omaha | 786 MW |
| Big Bend DamPlant 3375 | Hydro | Chamberlain, SDBuffalo County | USACE-Omaha | 538 MW |
| Big StonePlant 6098 | Coal | Big Stone City, SDGrant County | Otter Tail Power Co | 451 MW |
| Angus AnsonPlant 7237 | Oil & gas | Sioux Falls, SDMinnehaha County | Northern States Power Co - Minnesota | 406 MW |
| Astoria StationPlant 61144 | Oil & gas | Astoria, SDDeuel County | Otter Tail Power Co | 349 MW |
| Deer Creek StationPlant 56610 | Oil & gas | White, SDBrookings County | Basin Electric Power Coop | 324 MW |
| Fort RandallPlant 3373 | Hydro | Pickstown, SDCharles Mix County | USACE-Omaha | 320 MW |
| Dakota Range WindPlant 68318 | Wind | Marvin, SDGrant County | Northern States Power Co - Minnesota | 304 MW |
| Deuel Harvest Wind Energy LLCPlant 62943 | Wind | Clear Lake, SDDeuel County | Southern Power Co | 300 MW |
| Triple H Wind ProjectPlant 63103 | Wind | Highmore, SDHyde County | Engie North America | 250 MW |
Methodology
Transparent by design
State totals and fuel mix use finalized EIA-860 2024 generator data. The facility table uses the EIA-860 2025 Early Release and is preliminary. Data-center counts use OpenStreetMap community records and measure mapped coverage, not the full market.