Columbia Generating Station
Nuclear power plant in Benton County, Washington. 1,200 MW of nameplate capacity across 1 generator, operated by Energy Northwest- Columbia.
Also known as EIA plant 371
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 1,200 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- December 1984First generator online
- Operator
- Energy Northwest- ColumbiaEIA operator ID 67395
- Grid
- BPATBalancing authority BPAT
- Price nodes
- None linkedNo verified ISO node
- Location
- Benton County, WA46.4711, −119.3339
- EIA plant ID
- 371EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Columbia produces
Free · EIA-923Net generation, 2025
7.75 TWh
7,748,114 MWh, final
Capacity factor, 2025
73.7%
2024: 94.6%
January to July 2026
5.60 TWh
Provisional
Range, 2015 to 2025
7.7–10.0
TWh a year. Low 2025, high 2024
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 8,608,198 | Not reported | 12 of 12 |
| 2001 | 8,250,429 | Not reported | 12 of 12 |
| 2002 | 9,048,475 | Not reported | 12 of 12 |
| 2003 | 7,614,708 | Not reported | 12 of 12 |
| 2004 | 8,981,583 | Not reported | 12 of 12 |
| 2005 | 8,242,273 | Not reported | 12 of 12 |
| 2006 | 9,328,277 | Not reported | 12 of 12 |
| 2007 | 8,108,560 | Not reported | 12 of 12 |
| 2008 | 9,269,639 | Not reported | 12 of 12 |
| 2009 | 6,634,014 | Not reported | 12 of 12 |
| 2010 | 9,241,133 | 87.9% | 12 of 12 |
| 2011 | 4,806,278 | 45.7% | 12 of 12 |
| 2012 | 9,333,709 | 88.5% | 12 of 12 |
| 2013 | 8,460,890 | 80.5% | 12 of 12 |
| 2014 | 9,497,321 | 90.3% | 12 of 12 |
| 2015 | 8,160,912 | 77.6% | 12 of 12 |
| 2016 | 9,625,622 | 91.3% | 12 of 12 |
| 2017 | 8,128,259 | Not reported | 12 of 12 |
| 2018 | 9,708,441 | 92.4% | 12 of 12 |
| 2019 | 8,866,499 | 84.3% | 12 of 12 |
| 2020 | 9,427,050 | 89.4% | 12 of 12 |
| 2021 | 8,511,288 | 81.0% | 12 of 12 |
| 2022 | 9,851,535 | 93.7% | 12 of 12 |
| 2023 | 8,435,018 | 80.2% | 12 of 12 |
| 2024 | 9,967,139 | 94.6% | 12 of 12 |
| 2025 | 7,748,114 | 73.7% | 12 of 12 |
| 2026 (provisional, partial year) | 5,595,628 | 91.6% | 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, USGSWithdrawal, 2024
8,496
million gallons
Consumption, 2024
7,393
million gallons
Source
Columbia River
Surface, Fresh. Induced-draft tower
Watershed stress
Very low/none · 0.097
USGS SUI, HUC12 Parsons Canyon-Columbia River
12 of 12 cooling months report withdrawal. SUI of the source river HUC12 within 3 km. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 2 | Nuclear | 1,200.0 | December 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 Energy Northwest- Columbia as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
300 analyst questions a month, plus MCP
Query Columbia Generating Station and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near Columbia
Questions about Columbia
How much power does Columbia Generating Station produce?
Columbia Generating Station reported 7,748,114 MWh (7.75 TWh) of net generation in 2025, a 73.7% capacity factor on 1,200 MW of nameplate capacity. From January to July 2026 it reported 5.60 TWh, which is provisional.
Where is Columbia Generating Station?
Columbia Generating Station is in Benton County, Washington, at 46.4711, −119.3339. It is in the Bonneville Power Administration balancing area (BPAT).
Who operates Columbia Generating Station?
EIA-860M for August 2026 lists Energy Northwest- Columbia as the operator (EIA operator ID 67395). The operator is not always the owner.
When did Columbia Generating Station start operating?
Its first generator began operating in December 1984, 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)
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page