Grand Coulee
Hydro power plant in Grant County, Washington. 6,809 MW of nameplate capacity across 33 generators, operated by U S Bureau of Reclamation.
Also known as Grand Coulee Dam · EIA plant 6163
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 6,809 MWHydro 6,495.0 · Pumped storage 314.0
- Generators
- 33 operatingEIA-860M, August 2026
- Operating since
- March 1941First generator online
- Operator
- U S Bureau of ReclamationEIA operator ID 2518
- Grid
- BPATBalancing authority BPAT
- Price nodes
- None linkedNo verified ISO node
- Location
- Grant County, WA47.9575, −118.9773
- EIA plant ID
- 6163EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Grand Coulee produces
Free · EIA-923Net generation, 2025
16.2 TWh
16,151,147 MWh, final
Capacity factor, 2025
Not reported
2024: Not reported
January to July 2026
12.8 TWh
Provisional
Range, 2015 to 2025
15.4–21.2
TWh a year. Low 2024, high 2022
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 21,765,745 | Not reported | 12 of 12 |
| 2001 | 13,436,902 | Not reported | 12 of 12 |
| 2002 | 21,247,276 | Not reported | 12 of 12 |
| 2003 | 19,022,789 | Not reported | 12 of 12 |
| 2004 | 18,917,123 | Not reported | 12 of 12 |
| 2005 | 20,474,048 | Not reported | 12 of 12 |
| 2006 | 21,478,328 | Not reported | 12 of 12 |
| 2007 | 21,632,495 | Not reported | 12 of 12 |
| 2008 | 22,315,158 | Not reported | 12 of 12 |
| 2009 | 20,987,193 | Not reported | 12 of 12 |
| 2010 | 18,351,775 | Not reported | 12 of 12 |
| 2011 | 24,566,893 | Not reported | 12 of 12 |
| 2012 | 26,461,174 | Not reported | 12 of 12 |
| 2013 | 21,073,181 | Not reported | 12 of 12 |
| 2014 | 20,261,569 | Not reported | 12 of 12 |
| 2015 | 18,878,623 | Not reported | 12 of 12 |
| 2016 | 19,011,492 | Not reported | 12 of 12 |
| 2017 | 20,983,990 | Not reported | 12 of 12 |
| 2018 | 21,042,561 | Not reported | 12 of 12 |
| 2019 | 16,639,421 | Not reported | 12 of 12 |
| 2020 | 20,290,172 | Not reported | 12 of 12 |
| 2021 | 18,325,318 | Not reported | 12 of 12 |
| 2022 | 21,176,202 | Not reported | 12 of 12 |
| 2023 | 15,582,026 | Not reported | 12 of 12 |
| 2024 | 15,443,458 | Not reported | 12 of 12 |
| 2025 | 16,151,147 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | 12,841,304 | 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 |
|---|---|---|---|
| 1 | Conventional Hydroelectric | 125.0 | April 1942 |
| 2 | Conventional Hydroelectric | 125.0 | January 1942 |
| 3 | Conventional Hydroelectric | 125.0 | September 1941 |
| 4 | Conventional Hydroelectric | 125.0 | February 1944 |
| 5 | Conventional Hydroelectric | 125.0 | November 1943 |
| 6 | Conventional Hydroelectric | 125.0 | August 1943 |
| 7 | Conventional Hydroelectric | 125.0 | October 1947 |
| 8 | Conventional Hydroelectric | 125.0 | February 1943 |
| 9 | Conventional Hydroelectric | 125.0 | April 1948 |
| 10 | Conventional Hydroelectric | 125.0 | September 1951 |
| 11 | Conventional Hydroelectric | 125.0 | June 1951 |
| 12 | Conventional Hydroelectric | 125.0 | April 1951 |
| 13 | Conventional Hydroelectric | 125.0 | October 1950 |
| 14 | Conventional Hydroelectric | 125.0 | July 1950 |
| 15 | Conventional Hydroelectric | 125.0 | April 1950 |
| 16 | Conventional Hydroelectric | 125.0 | September 1949 |
| 17 | Conventional Hydroelectric | 125.0 | July 1949 |
| 18 | Conventional Hydroelectric | 125.0 | May 1949 |
| 19 | Conventional Hydroelectric | 600.0 | September 1975 |
| 20 | Conventional Hydroelectric | 600.0 | April 1976 |
| 21 | Conventional Hydroelectric | 600.0 | December 1976 |
| 22 | Conventional Hydroelectric | 805.0 | May 1978 |
| 23 | Conventional Hydroelectric | 805.0 | November 1979 |
| 24 | Conventional Hydroelectric | 805.0 | May 1980 |
| LS1 | Conventional Hydroelectric | 10.0 | March 1941 |
| LS2 | Conventional Hydroelectric | 10.0 | March 1941 |
| LS3 | Conventional Hydroelectric | 10.0 | January 1951 |
| PG7 | Hydroelectric Pumped Storage | 50.0 | October 1973 |
| PG8 | Hydroelectric Pumped Storage | 50.0 | November 1973 |
| PG9 | Hydroelectric Pumped Storage | 53.5 | April 1983 |
| PG10 | Hydroelectric Pumped Storage | 53.5 | June 1983 |
| PG11 | Hydroelectric Pumped Storage | 53.5 | November 1983 |
| PG12 | Hydroelectric Pumped Storage | 53.5 | April 1984 |
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 U S Bureau of Reclamation 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 Grand Coulee
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Questions about Grand Coulee
How much power does Grand Coulee produce?
Grand Coulee reported 16,151,147 MWh (16.2 TWh) of net generation in 2025. From January to July 2026 it reported 12.8 TWh, which is provisional.
Where is Grand Coulee?
Grand Coulee is in Grant County, Washington, at 47.9575, −118.9773. It is in the Bonneville Power Administration balancing area (BPAT).
Who operates Grand Coulee?
EIA-860M for August 2026 lists U S Bureau of Reclamation as the operator (EIA operator ID 2518). The operator is not always the owner.
When did Grand Coulee start operating?
Its first generator began operating in March 1941, 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