Adams Wind
Adams County, Iowa · EIA plant ID 59637 · Operator: MidAmerican Energy Co
Nameplate154MWSummer 150 MW
Generators4in service
Net generation460GWh12 mo to Dec 2025
Capacity factor35%wind units, summer MW
Heat rate—thermal plants only
First online2015
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) |
|---|---|---|---|
| 2015 | 35 | 30.7% | — |
| 2016 | 483.9 | 35.7% | — |
| 2017 | 485.8 | 35.9% | — |
| 2018 | 460 | 34.0% | — |
| 2019 | 457.4 | 33.8% | — |
| 2020 | 421.4 | 31.1% | — |
| 2021 | 392.2 | 29.0% | — |
| 2022 | 509.4 | 38.8% | — |
| 2023 | 440.1 | 33.5% | — |
| 2024 | 474.5 | 36.0% | — |
| 2025 | 460.4 | 35.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| ADWF | Onshore Wind Turbine | WT | 4.7 | 4.7 | Oct 2015 | Operating | — | siemens SWT-2.3-108 |
| ADWF2 | Onshore Wind Turbine | WT | 43.3 | 39 | Nov 2015 | Operating | — | siemens SWT-2.3-108 |
| ADWF3 | Onshore Wind Turbine | WT | 58 | 58 | Dec 2015 | Operating | — | siemens SWT-2.3-108 |
| ADWF4 | Onshore Wind Turbine | WT | 48.3 | 48.3 | Jan 2016 | Operating | — | siemens SWT-2.3-108 |
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% | 154 MW |
Nearby plants
Within 80 km.
| Corning | 7 MW | 9.2 km |
| Lenox | 6 MW | 10.5 km |
| POET Biorefining LLC - Corning | 5 MW | 11.6 km |
| Prescott Wind Farm | 39 MW | 23 km |
| Birch | 2 MW | 23.7 km |
| August Wind Farm | 2 MW | 23.9 km |