Dworshak
Hydro power plant in Clearwater County, Idaho. 465 MW of nameplate capacity across 3 generators, operated by USACE Northwestern Division.
Also known as Dworshak Hydroelectric Plant · EIA plant 840
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 465 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- September 1974First generator online
- Operator
- USACE Northwestern DivisionEIA operator ID 19400
- Grid
- BPATBalancing authority BPAT
- Price nodes
- None linkedNo verified ISO node
- Location
- Clearwater County, ID46.5143, −116.2977
- EIA plant ID
- 840EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Dworshak produces
Free · EIA-923Net generation, 2025
1.52 TWh
1,516,661 MWh, final
Capacity factor, 2025
37.2%
2024: 33.1%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
1.4–2.0
TWh a year. Low 2024, high 2022
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 1,874,830 | Not reported | 12 of 12 |
| 2001 | 1,086,827 | Not reported | 12 of 12 |
| 2002 | 2,036,401 | Not reported | 12 of 12 |
| 2003 | 1,698,994 | Not reported | 12 of 12 |
| 2004 | 1,653,709 | Not reported | 12 of 12 |
| 2005 | 1,603,724 | Not reported | 12 of 12 |
| 2006 | 1,951,507 | Not reported | 12 of 12 |
| 2007 | 1,828,011 | Not reported | 12 of 12 |
| 2008 | 1,902,368 | Not reported | 12 of 12 |
| 2009 | 1,845,254 | Not reported | 12 of 12 |
| 2010 | 1,289,227 | 36.8% | 12 of 12 |
| 2011 | 2,329,216 | 66.5% | 12 of 12 |
| 2012 | 1,991,779 | 56.7% | 12 of 12 |
| 2013 | 1,833,797 | 52.3% | 12 of 12 |
| 2014 | 1,744,669 | 49.8% | 12 of 12 |
| 2015 | 1,614,911 | 46.1% | 12 of 12 |
| 2016 | 1,693,686 | 48.2% | 12 of 12 |
| 2017 | 1,436,978 | 41.0% | 12 of 12 |
| 2018 | 1,598,478 | Not reported | 12 of 12 |
| 2019 | 1,702,262 | 41.8% | 12 of 12 |
| 2020 | 1,637,786 | 40.1% | 12 of 12 |
| 2021 | 1,482,062 | 36.4% | 12 of 12 |
| 2022 | 2,004,676 | 49.2% | 12 of 12 |
| 2023 | 1,444,551 | 35.5% | 12 of 12 |
| 2024 | 1,353,569 | 33.1% | 12 of 12 |
| 2025 | 1,516,661 | 37.2% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 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, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Conventional Hydroelectric | 103.0 | June 1975 |
| 2 | Conventional Hydroelectric | 103.0 | September 1975 |
| 3 | Conventional Hydroelectric | 259.0 | September 1974 |
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 USACE Northwestern Division as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Power plants near Dworshak
More plants operated by USACE Northwestern Division
Questions about Dworshak
How much power does Dworshak produce?
Dworshak reported 1,516,661 MWh (1.52 TWh) of net generation in 2025, a 37.2% capacity factor on 465 MW of nameplate capacity.
Where is Dworshak?
Dworshak is in Clearwater County, Idaho, at 46.5143, −116.2977. It is in the Bonneville Power Administration balancing area (BPAT).
Who operates Dworshak?
EIA-860M for August 2026 lists USACE Northwestern Division as the operator (EIA operator ID 19400). The operator is not always the owner.
When did Dworshak start operating?
Its first generator began operating in September 1974, 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)
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page