Wells
Hydro power plant in Chelan County, Washington. 789.4 MW of nameplate capacity across 9 generators, operated by PUD No 1 of Douglas County - (WA).
Also known as Wells Dam · EIA plant 3886
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 789.4 MWNameplate
- Generators
- 9 operatingEIA-860M, August 2026
- Operating since
- September 1967First generator online
- Operator
- PUD No 1 of Douglas County - (WA)EIA operator ID 5326
- Grid
- DOPDBalancing authority DOPD
- Price nodes
- None linkedNo verified ISO node
- Location
- Chelan County, WA47.9469, −119.8653
- EIA plant ID
- 3886EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Wells produces
Free · EIA-923Net generation, 2025
3.71 TWh
3,707,938 MWh, final
Capacity factor, 2025
Not reported
2024: Not reported
January to July 2026
2.90 TWh
Provisional
Range, 2015 to 2025
3.5–4.5
TWh a year. Low 2023, high 2017
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 4,508,719 | Not reported | 12 of 12 |
| 2001 | 2,950,817 | Not reported | 12 of 12 |
| 2002 | 4,189,686 | Not reported | 12 of 12 |
| 2003 | 3,844,684 | Not reported | 12 of 12 |
| 2004 | 3,876,398 | Not reported | 12 of 12 |
| 2005 | 4,063,301 | Not reported | 12 of 12 |
| 2006 | 4,123,371 | Not reported | 12 of 12 |
| 2007 | 4,309,536 | Not reported | 12 of 12 |
| 2008 | 3,820,877 | Not reported | 12 of 12 |
| 2009 | 3,759,338 | Not reported | 12 of 12 |
| 2010 | 3,526,019 | 52.0% | 12 of 12 |
| 2011 | 4,671,616 | 68.9% | 12 of 12 |
| 2012 | 4,655,818 | 68.5% | 12 of 12 |
| 2013 | 4,479,693 | 66.1% | 12 of 12 |
| 2014 | 4,433,355 | 65.4% | 12 of 12 |
| 2015 | 4,305,014 | 63.5% | 12 of 12 |
| 2016 | 4,320,978 | 63.6% | 12 of 12 |
| 2017 | 4,542,200 | 67.0% | 12 of 12 |
| 2018 | 4,438,938 | 65.5% | 12 of 12 |
| 2019 | 3,687,032 | 54.4% | 12 of 12 |
| 2020 | 4,377,027 | 64.4% | 12 of 12 |
| 2021 | 4,074,325 | 60.1% | 12 of 12 |
| 2022 | 4,487,235 | Not reported | 12 of 12 |
| 2023 | 3,498,318 | Not reported | 12 of 12 |
| 2024 | 3,502,380 | Not reported | 12 of 12 |
| 2025 | 3,707,938 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | 2,902,779 | 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 |
|---|---|---|---|
| U-1 | Conventional Hydroelectric | 77.4 | September 1967 |
| U-2 | Conventional Hydroelectric | 89.0 | October 1967 |
| U-3 | Conventional Hydroelectric | 89.0 | September 1967 |
| U-4 | Conventional Hydroelectric | 89.0 | September 1967 |
| U-5 | Conventional Hydroelectric | 89.0 | September 1967 |
| U-6 | Conventional Hydroelectric | 89.0 | September 1967 |
| U-7 | Conventional Hydroelectric | 89.0 | September 1967 |
| U-8 | Conventional Hydroelectric | 89.0 | October 1968 |
| U-10 | Conventional Hydroelectric | 89.0 | January 1969 |
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 Douglas 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 Wells
Questions about Wells
How much power does Wells produce?
Wells reported 3,707,938 MWh (3.71 TWh) of net generation in 2025. From January to July 2026 it reported 2.90 TWh, which is provisional.
Where is Wells?
Wells is in Chelan County, Washington, at 47.9469, −119.8653. It is in the PUD No. 1 of Douglas County balancing area (DOPD).
Who operates Wells?
EIA-860M for August 2026 lists PUD No 1 of Douglas County - (WA) as the operator (EIA operator ID 5326). The operator is not always the owner.
When did Wells start operating?
Its first generator began operating in September 1967, 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