Wild Horse
Wind power plant in Kittitas County, Washington. 273.1 MW of nameplate capacity across 3 generators, operated by Puget Sound Energy Inc.
Also known as Wild Horse I · Wild Horse II · EIA plant 56322
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 273.1 MWWind 272.6 · Solar 0.5
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- December 2006First generator online
- Operator
- Puget Sound Energy IncEIA operator ID 15500
- Grid
- PSEIBalancing authority PSEI
- Price nodes
- None linkedNo verified ISO node
- Location
- Kittitas County, WA47.0363, −120.2065
- EIA plant ID
- 56322EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Wild Horse produces
Free · EIA-923Net generation, 2025
591 GWh
590,982 MWh, final
Capacity factor, 2025
24.7%
2024: 26.5%
January to July 2026
376 GWh
Provisional
Range, 2015 to 2025
525.9–765.0
GWh a year. Low 2023, high 2020
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | 11,242 | Not reported | 1 of 12 |
| 2007 | 612,859 | Not reported | 12 of 12 |
| 2008 | 672,680 | Not reported | 12 of 12 |
| 2009 | 555,156 | Not reported | 12 of 12 |
| 2010 | 607,137 | 25.4% | 12 of 12 |
| 2011 | 680,781 | 28.5% | 12 of 12 |
| 2012 | 678,786 | 28.3% | 12 of 12 |
| 2013 | 659,863 | 27.6% | 12 of 12 |
| 2014 | 650,563 | 27.2% | 12 of 12 |
| 2015 | 609,963 | 25.5% | 12 of 12 |
| 2016 | 672,926 | 28.1% | 12 of 12 |
| 2017 | 613,464 | 25.6% | 12 of 12 |
| 2018 | 639,178 | 26.7% | 12 of 12 |
| 2019 | 613,275 | 25.6% | 12 of 12 |
| 2020 | 765,003 | 31.9% | 12 of 12 |
| 2021 | 714,507 | 29.9% | 12 of 12 |
| 2022 | 564,158 | 23.6% | 12 of 12 |
| 2023 | 525,947 | 22.0% | 12 of 12 |
| 2024 | 636,790 | 26.5% | 12 of 12 |
| 2025 | 590,982 | 24.7% | 12 of 12 |
| 2026 (provisional, partial year) | 376,050 | 27.1% | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Onshore Wind Turbine | 228.6 | December 2006 |
| WH2 | Onshore Wind Turbine | 44.0 | November 2009 |
| WHS1 | Solar Photovoltaic | 0.5 | October 2007 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Puget Sound Energy Inc as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Modeled curtailment
A range, not one number. The lower bound counts hours inside the production tax credit window; the upper bound is the no-credit case.
Expected vs reported generation
Monthly modeled expected output and physical potential next to EIA-923 reported output.
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Power plants near Wild Horse
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Questions about Wild Horse
How much power does Wild Horse produce?
Wild Horse reported 590,982 MWh (591 GWh) of net generation in 2025, a 24.7% capacity factor on 273.1 MW of nameplate capacity. From January to July 2026 it reported 376 GWh, which is provisional.
Where is Wild Horse?
Wild Horse is in Kittitas County, Washington, at 47.0363, −120.2065. It is in the Puget Sound Energy balancing area (PSEI).
Who operates Wild Horse?
EIA-860M for August 2026 lists Puget Sound Energy Inc as the operator (EIA operator ID 15500). The operator is not always the owner.
When did Wild Horse start operating?
Its first generator began operating in December 2006, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- Project names from the USGS U.S. Wind Turbine Database
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page