Prevailing Wind Park
Wind power plant · Yankton County, South Dakota
Details
- Primary fuel
- Wind
- Technology
- Onshore Wind Turbine
- Operator
- AES Distributed Energy
- County
- Yankton County
- Generating units
- 1
- Share of state capacity
- 2.87%
- Rank among wind plants in South Dakota
- #4 of 25
- EIA plant code
- 62247
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| PWPSD | Onshore Wind Turbine | 220 MW | 220 MW | 2020 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in South Dakota
| Deuel Harvest Wind Energy LLC | Wind | 300 MW |
| Triple H Wind Project | Wind | 250 MW |
| Groton Generation Station | Natural gas | 216 MW |
| Buffalo Ridge II LLC | Wind | 210 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 220 MW solar plant and a 220 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All South Dakota power plants · What South Dakota actually generates