Greenfield Wind
Adair County, Iowa · EIA plant ID 58458 · Operator: Greenfield Wind Power, LLC
Nameplate2MWSummer 2 MW
Generators1in service
Net generation4GWh12 mo to Dec 2025
Capacity factor31%wind units, summer MW
Heat rate—thermal plants only
First online2012
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) |
|---|---|---|---|
| 2013 | 6.4 | 46.0% | — |
| 2014 | 5.8 | 41.4% | — |
| 2015 | 6.1 | 43.3% | — |
| 2016 | 6.1 | 43.6% | — |
| 2017 | 6.1 | 43.2% | — |
| 2018 | 5.6 | 40.1% | — |
| 2019 | 5.5 | 39.3% | — |
| 2020 | 5 | 35.3% | — |
| 2021 | 4.9 | 35.3% | — |
| 2022 | 5.8 | 41.7% | — |
| 2023 | 4.7 | 33.9% | — |
| 2024 | 5.3 | 37.8% | — |
| 2025 | 4.4 | 31.3% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Onshore Wind Turbine | WT | 1.6 | 1.6 | Aug 2012 | Operating | — | ge 1.62-82.5 |
Owner / operator
Operator: Greenfield Wind Power, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Greenfield Wind Power, LLC | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| Sky Volt | 2 MW | 0 km |
| Downtown Generation Plant | 5 MW | 2.6 km |
| North | 8 MW | 3.9 km |
| Bulldog | 2 MW | 8 km |
| Cumberland Rose | 2 MW | 8.2 km |
| Fontanelle | 2 MW | 8.9 km |