Prevailing Wind Park
Yankton County, South Dakota · EIA plant ID 62247 · Operator: AES Distributed Energy
Nameplate220MWSummer 220 MW
Generators1in service
Net generation822GWh12 mo to Aug 2026
Capacity factor43%wind units, summer MW
Heat rate—thermal plants only
First online2020
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), wind units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2020 | 553 | 34.2% | — |
| 2021 | 830.1 | 43.1% | — |
| 2022 | 916.1 | 47.5% | — |
| 2023 | 787 | 40.8% | — |
| 2024 | 871.8 | 45.1% | — |
| 2025 | 850.8 | 44.1% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| PWPSD | Onshore Wind Turbine | WT | 220 | 220 | Mar 2020 | Operating | — | ge 3.8-137 |
Owner / operator
Operator: AES Distributed Energy. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| AES Distributed Energy | 100.0% | 220 MW |
Nearby plants
Within 80 km.
| Yankton | 13 MW | 21.4 km |
| Gavins Point | 132 MW | 21.5 km |
| Crofton Bluffs Wind LLC | 40 MW | 38.1 km |
| Elkhorn Ridge Wind LLC | 81 MW | 38.7 km |
| Spirit Mound | 135 MW | 46.3 km |
| Beethoven Wind | 80 MW | 46.9 km |