Rocky Reach
Hydro power plant in Chelan County, Washington. 1,349.2 MW of nameplate capacity across 11 generators, operated by PUD No 1 of Chelan County - (WA).
Also known as Rocky Reach Powerhouse · EIA plant 3883
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Key facts
- Capacity
- 1,349.2 MWNameplate
- Generators
- 11 operatingEIA-860M, August 2026
- Operating since
- June 1961First generator online
- Operator
- PUD No 1 of Chelan County - (WA)EIA operator ID 3413
- Grid
- CHPDBalancing authority CHPD
- Price nodes
- None linkedNo verified ISO node
- Location
- Chelan County, WA47.5336, −120.2953
- EIA plant ID
- 3883EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Rocky Reach produces
Free · EIA-923Net generation, 2025
5.24 TWh
5,241,117 MWh, final
Capacity factor, 2025
Not reported
2024: 42.9%
January to July 2026
4.32 TWh
Provisional
Range, 2015 to 2025
4.9–6.4
TWh a year. Low 2024, high 2022
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 6,288,474 | Not reported | 12 of 12 |
| 2001 | 4,301,007 | Not reported | 12 of 12 |
| 2002 | 5,841,456 | Not reported | 12 of 12 |
| 2003 | 5,272,041 | Not reported | 12 of 12 |
| 2004 | 5,425,493 | Not reported | 12 of 12 |
| 2005 | 5,756,883 | Not reported | 12 of 12 |
| 2006 | 6,148,172 | Not reported | 12 of 12 |
| 2007 | 6,303,741 | Not reported | 12 of 12 |
| 2008 | 5,779,597 | Not reported | 12 of 12 |
| 2009 | 5,341,630 | Not reported | 12 of 12 |
| 2010 | 5,070,752 | 44.5% | 12 of 12 |
| 2011 | 7,168,220 | 63.0% | 12 of 12 |
| 2012 | 6,953,342 | 60.9% | 12 of 12 |
| 2013 | 6,360,922 | 55.9% | 12 of 12 |
| 2014 | 6,293,829 | 55.3% | 12 of 12 |
| 2015 | 5,948,234 | 52.2% | 12 of 12 |
| 2016 | 6,069,429 | 53.2% | 12 of 12 |
| 2017 | 6,141,089 | 53.9% | 12 of 12 |
| 2018 | 6,287,761 | 55.2% | 12 of 12 |
| 2019 | 5,020,823 | 44.1% | 12 of 12 |
| 2020 | 5,896,167 | 51.6% | 12 of 12 |
| 2021 | 5,728,929 | 50.3% | 12 of 12 |
| 2022 | 6,448,458 | 56.6% | 12 of 12 |
| 2023 | 5,001,487 | 43.9% | 12 of 12 |
| 2024 | 4,901,113 | 42.9% | 12 of 12 |
| 2025 | 5,241,117 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | 4,319,869 | Not reported | 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 |
|---|---|---|---|
| C-1 | Conventional Hydroelectric | 114.0 | June 1961 |
| C-2 | Conventional Hydroelectric | 114.0 | June 1961 |
| C-3 | Conventional Hydroelectric | 114.0 | June 1961 |
| C-4 | Conventional Hydroelectric | 114.0 | August 1961 |
| C-5 | Conventional Hydroelectric | 114.0 | August 1961 |
| C-6 | Conventional Hydroelectric | 114.0 | August 1961 |
| C-7 | Conventional Hydroelectric | 114.0 | September 1961 |
| C-8 | Conventional Hydroelectric | 137.8 | August 1973 |
| C-9 | Conventional Hydroelectric | 137.8 | November 1973 |
| C-10 | Conventional Hydroelectric | 137.8 | January 1974 |
| C-11 | Conventional Hydroelectric | 137.8 | February 1974 |
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 PUD No 1 of Chelan County - (WA) 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 Rocky Reach
More plants operated by PUD No 1 of Chelan County - (WA)
Questions about Rocky Reach
How much power does Rocky Reach produce?
Rocky Reach reported 5,241,117 MWh (5.24 TWh) of net generation in 2025. From January to July 2026 it reported 4.32 TWh, which is provisional.
Where is Rocky Reach?
Rocky Reach is in Chelan County, Washington, at 47.5336, −120.2953. It is in the Public Utility District No. 1 of Chelan County balancing area (CHPD).
Who operates Rocky Reach?
EIA-860M for August 2026 lists PUD No 1 of Chelan County - (WA) as the operator (EIA operator ID 3413). The operator is not always the owner.
When did Rocky Reach start operating?
Its first generator began operating in June 1961, 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)
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page