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1200 MW Nuclear operating in Benton, WA — Bonneville Power Administration
1,200 MW
Nameplate Capacity
1
Generators
unit
Nuclear
Technology
1984
Operating Since
Coordinates
46.4711, -119.3339
County
Benton, WA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Energy Northwest- Columbia | Energy Northwest | Energy Northwest |
| Owner(s) | Energy Northwest | Energy Northwest | — |
| Status | Operating | operating | — |
GEM identifies the owner as Energy Northwest
This entity is not yet in the GEM ownership database — chain unavailable.
Columbia Generating Station is a nuclear commercial energy facility located on the Hanford Site, 10 miles (16 km) north of Richland, Washington. It is owned and operated by Energy Northwest, a Washington state, not-for-profit joint operating agency. Licensed by the Nuclear Regulatory Commission in 1983, Columbia first produced electricity in May 1984, and entered commercial operation in December 1984.
Read more on WikipediaColumbia Generating Station is a 1200 MW nuclear power plant located in Benton County, Washington. It began operating in 1984 and is owned and operated by Energy Northwest. The plant is the only nuclear power plant in the state of Washington, ranking it 1 of 1, and nationally it ranks 40 of 55 among nuclear plants. It has a single nuclear generator.
The plant's latest annual generation was 7,751,431 MWh, achieving a capacity factor of 73.7%. Columbia Generating Station operates within the Bonneville Power Administration balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
Generated from EIA, GEM, and public data sources
Grid Region
Pacific Northwest
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
842.8K MWh
Latest Month
7.8M MWh
Annual Generation
73.7%
Capacity Factor
No financial data available for this plant.
This is a small open-data project — if you have sources or want more coverage here, drop a note.
This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
Last updated 2026-03-26
View all 9 articlesNo ask pi reports yet for this entity.
ask pi about Columbia Generating StationBonneville Power Administration (BPAT)
Grid Voltage
500.0 kV
Regulatory Status
RE — Regulated
Entity Type
—
Sector
Electric Utility