Plymouth Wind
Plymouth County, Iowa · EIA plant ID 64688 · Operator: MidAmerican Energy Co
Nameplate203MWSummer 200 MW
Generators1in service
Net generation759GWh12 mo to Aug 2026
Capacity factor43%wind units, summer MW
Heat rate—thermal plants only
First online2022
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) |
|---|---|---|---|
| 2022 | 827.7 | 47.2% | — |
| 2023 | 772.2 | 44.1% | — |
| 2024 | 768.6 | 43.8% | — |
| 2025 | 799.6 | 45.6% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 65003 | Onshore Wind Turbine | WT | 202.7 | 200 | Jan 2022 | Operating | — | ge 2.82-127 |
Owner / operator
Operator: MidAmerican Energy Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| MidAmerican Energy Co | 100.0% | 203 MW |
Nearby plants
Within 80 km.
| Glaciers Edge Wind Project | 212 MW | 14 km |
| Highland Wind Project (IA) | 502 MW | 35.1 km |
| Primghar | 2 MW | 37.4 km |
| Storm Lake II | 80 MW | 43.7 km |
| Storm Lake 1 | 114 MW | 47.1 km |
| O'Brien Wind | 250 MW | 47.4 km |