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465 MW Hydro operating in Clearwater, ID
465 MW
Nameplate Capacity
3
Generators
units
Conventional Hydroelectric
Technology
1974
Operating Since
Coordinates
46.5143, -116.2977
County
Clearwater, ID
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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
Bonneville Power Administration (BPAT)
Grid Voltage
500.0 kV
Regulatory Status
RE — Regulated
Entity Type
Federal
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
48.8K MWh
Latest Month
1.4M MWh
Annual Generation
33.0%
Capacity Factor
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2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $1.1B
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
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