Twin Falls Hydro
Hydro power plant in King County, Washington. 24 MW of nameplate capacity across 2 generators, operated by Central Rivers Power US, LLC.
Also known as EIA plant 50827
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 24 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- December 1989First generator online
- Operator
- Central Rivers Power US, LLCEIA operator ID 64078
- Grid
- PSEIBalancing authority PSEI
- Price nodes
- None linkedNo verified ISO node
- Location
- King County, WA47.4446, −121.6878
- EIA plant ID
- 50827EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Twin Falls Hydro produces
Free · EIA-923Net generation, 2025
59.3 GWh
59,297 MWh, final
Capacity factor, 2025
28.2%
2024: 29.9%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
50.0–79.8
GWh a year. Low 2023, high 2016
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | 65,506 | Not reported | 12 of 12 |
| 2002 | 55,345 | Not reported | 12 of 12 |
| 2003 | 67,903 | Not reported | 12 of 12 |
| 2004 | 6,538 | Not reported | 12 of 12 |
| 2005 | 48,445 | Not reported | 12 of 12 |
| 2006 | 67,286 | Not reported | 12 of 12 |
| 2007 | 72,935 | Not reported | 12 of 12 |
| 2008 | 73,366 | Not reported | 12 of 12 |
| 2009 | 68,405 | Not reported | 12 of 12 |
| 2010 | 75,802 | 36.1% | 12 of 12 |
| 2011 | 90,264 | 42.9% | 12 of 12 |
| 2012 | 95,736 | 45.4% | 12 of 12 |
| 2013 | 83,588 | 39.8% | 12 of 12 |
| 2014 | 92,559 | 44.0% | 12 of 12 |
| 2015 | 52,626 | 25.0% | 12 of 12 |
| 2016 | 79,845 | 37.9% | 12 of 12 |
| 2017 | 77,770 | 37.0% | 12 of 12 |
| 2018 | 78,310 | 37.2% | 12 of 12 |
| 2019 | 53,198 | 25.3% | 12 of 12 |
| 2020 | 75,483 | 35.8% | 12 of 12 |
| 2021 | 78,613 | 37.4% | 12 of 12 |
| 2022 | 70,262 | 33.4% | 12 of 12 |
| 2023 | 49,979 | 23.8% | 12 of 12 |
| 2024 | 62,946 | 29.9% | 12 of 12 |
| 2025 | 59,297 | 28.2% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 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 |
|---|---|---|---|
| UNI1 | Conventional Hydroelectric | 12.0 | December 1989 |
| UNI2 | Conventional Hydroelectric | 12.0 | December 1989 |
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 Central Rivers Power US, LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Power plants near Twin Falls Hydro
More plants operated by Central Rivers Power US, LLC
Questions about Twin Falls Hydro
How much power does Twin Falls Hydro produce?
Twin Falls Hydro reported 59,297 MWh (59.3 GWh) of net generation in 2025, a 28.2% capacity factor on 24 MW of nameplate capacity.
Where is Twin Falls Hydro?
Twin Falls Hydro is in King County, Washington, at 47.4446, −121.6878. It is in the Puget Sound Energy balancing area (PSEI).
Who operates Twin Falls Hydro?
EIA-860M for August 2026 lists Central Rivers Power US, LLC as the operator (EIA operator ID 64078). The operator is not always the owner.
When did Twin Falls Hydro start operating?
Its first generator began operating in December 1989, 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)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page