Windy Flats Wind Project
Klickitat County, Washington · EIA plant ID 57159 · Operator: Windy Flats Partners LLC
Nameplate262MWSummer 262 MW
Generators1in service
Net generation651GWh12 mo to Dec 2025
Capacity factor28%wind units, summer MW
Heat rate—thermal plants only
First online2009
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) |
|---|---|---|---|
| 2009 | 28.7 | 5.0% | — |
| 2010 | 642.5 | 28.0% | — |
| 2011 | 730.6 | 31.8% | — |
| 2012 | 673.4 | 29.2% | — |
| 2013 | 704.4 | 30.7% | — |
| 2014 | 656.7 | 28.6% | — |
| 2015 | 621.9 | 27.1% | — |
| 2016 | 663.8 | 28.8% | — |
| 2017 | 566.4 | 24.7% | — |
| 2018 | 674.5 | 29.4% | — |
| 2019 | 611.9 | 26.6% | — |
| 2020 | 770.9 | 33.5% | — |
| 2021 | 705.3 | 30.7% | — |
| 2022 | 636.7 | 27.7% | — |
| 2023 | 567.8 | 24.7% | — |
| 2024 | 671.6 | 29.2% | — |
| 2025 | 650.9 | 28.3% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Onshore Wind Turbine | WT | 262.2 | 262.2 | Oct 2009 | Operating | — | siemens SWT-2.3-93 |
Owner / operator
Operator: Windy Flats Partners LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Windy Flats Partners LLC | 100.0% | 262 MW |
Nearby plants
Within 80 km.
| Linden Wind Energy Project | 50 MW | 4.4 km |
| Goldendale Generating Station | 303 MW | 9.4 km |
| John Day | 2,160 MW | 10.9 km |
| Tuolumne Wind Project | 136 MW | 17.1 km |
| Carriger | — | 17.3 km |
| Biglow Canyon Wind Farm | 450 MW | 19.7 km |