Pioneer Prairie Wind Farm
Mitchell County, Iowa · EIA plant ID 56797 · Operator: Pioneer Prairie Wind Farm I, LLC
Nameplate300MWSummer 300 MW
Generators1in service
Net generation842GWh12 mo to Aug 2026
Capacity factor32%wind units, summer MW
Heat rate—thermal plants only
First online2008
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) |
|---|---|---|---|
| 2008 | 99.8 | 15.1% | — |
| 2009 | 795.1 | 30.3% | — |
| 2010 | 870.9 | 33.1% | — |
| 2011 | 881.7 | 33.6% | — |
| 2012 | 941.8 | 35.7% | — |
| 2013 | 964.6 | 36.7% | — |
| 2014 | 1,002.7 | 38.1% | — |
| 2015 | 965.4 | 36.7% | — |
| 2016 | 931.2 | 35.3% | — |
| 2017 | 954.2 | 36.3% | — |
| 2018 | 831.3 | 31.6% | — |
| 2019 | 825.5 | 31.4% | — |
| 2020 | 836.6 | 31.8% | — |
| 2021 | 783.8 | 29.8% | — |
| 2022 | 1,022.4 | 38.9% | — |
| 2023 | 759.7 | 28.9% | — |
| 2024 | 863.1 | 32.8% | — |
| 2025 | 859.1 | 32.7% | — |
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 | 300 | 300 | Oct 2008 | Operating | — | vestas V82-1.65 |
Owner / operator
Operator: Pioneer Prairie Wind Farm I, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Pioneer Prairie Wind Farm I, LLC | 100.0% | 300 MW |
Nearby plants
Within 80 km.
| Louise Solar | 50 MW | 10.4 km |
| Adams Wind Farm | 23 MW | 11.9 km |
| Douglas (IA) | 3 MW | 14.1 km |
| Mower County Wind Energy Center | 99 MW | 14.5 km |
| Crane Creek Wind Energy Center | 99 MW | 14.8 km |
| Little Cedar | 3 MW | 14.8 km |