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810 MW Hydro operating in Columbia, WA — Bonneville Power Administration
810 MW
Nameplate Capacity
6
Generators
units
Conventional Hydroelectric
Technology
1970
Operating Since
Coordinates
46.5838, -118.0273
County
Columbia, WA
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | USACE Northwestern Division | US Army Corps of Engineers - Walla Walla District | United States Army Corps of Engineers |
| Owner(s) | USACE Northwestern Division | US Army Corps of Engineers - Walla Walla District | — |
| Status | Operating | operating | — |
GEM identifies the owner as US Army Corps of Engineers - Walla Walla District
This entity is not yet in the GEM ownership database — chain unavailable.
Little Goose Lock and Dam is a hydroelectric, concrete, run-of-the-river dam in the northwest United States, on the lower Snake River in southeast Washington. At the dam, the river is the border between Columbia and Whitman counties; it is nine miles (14 km) northeast of Starbuck and 25 miles (40 km) north of Dayton.
Read more on WikipediaLittle Goose is a hydroelectric power plant located in Columbia County, Washington. The plant, which began operating in 1970, has a total capacity of 810 MW derived from six generators. It is owned and operated by the USACE Northwestern Division. The primary fuel source is water (WAT), and the plant utilizes conventional hydroelectric technology. Little Goose is within the Bonneville Power Administration balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
In terms of size, Little Goose ranks as the 9th largest power plant in Washington out of 23, and 30th nationally out of 194 plants. The plant's latest annual generation was 1,589,274 MWh, resulting in a capacity factor of 22.4%. Recent news coverage related to the plant includes one article pertaining to hazards.
Generated from EIA, GEM, and public data sources
Grid Region
Pacific Northwest
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
184.1K MWh
Latest Month
1.6M MWh
Annual Generation
22.4%
Capacity Factor
2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $1.9B
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 articlesNo ask pi reports yet for this entity.
ask pi about Little GooseBonneville Power Administration (BPAT)
Grid Voltage
500.0 kV
Regulatory Status
RE — Regulated
Entity Type
Federal
Sector
Electric Utility