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465 MW Hydro operating in Clearwater, ID — Bonneville Power Administration
465 MW
Nameplate Capacity
3
Generators
units
Conventional Hydroelectric
Technology
1974
Operating Since
Coordinates
46.5143, -116.2977
County
Clearwater, ID
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 | — |
| 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.
Dworshak Dam is a concrete gravity dam in the western United States, on the North Fork of the Clearwater River in north central Idaho. In Clearwater County, the dam is located approximately four miles (6 km) northwest of Orofino and impounds the Dworshak Reservoir for flood control and hydroelectricity generation. By capacity, the reservoir is the largest in Idaho and fourth-largest in the Pacific Northwest.
Read more on WikipediaDworshak is a 465 MW hydroelectric power plant located in Clearwater County, Idaho. The plant began operating in 1974 and is owned and operated by the USACE Northwestern Division. It utilizes conventional hydroelectric technology with water as its primary fuel source. The facility has three generators.
Dworshak ranks as the second-largest of five hydroelectric plants in Idaho, and 51st out of 194 nationally. The plant operates within the Bonneville Power Administration balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. In the latest year of reported generation, Dworshak produced 1,353,569 MWh of electricity, achieving a capacity factor of 33.0%.
Generated from EIA, GEM, and public data sources
Grid Region
Pacific Northwest
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
48.8K MWh
Latest Month
1.4M MWh
Annual Generation
33.0%
Capacity Factor
2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $1.1B
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 DworshakBonneville Power Administration (BPAT)
Grid Voltage
500.0 kV
Regulatory Status
RE — Regulated
Entity Type
Federal
Sector
Electric Utility