United States › Power plants › Hydroelectric plants › Washington
HYDROELECTRIC PLANTSLower Granite
Lower Granite is a 810 MW operating hydroelectric plant in Whitman County, Washington, operated by USACE Northwestern Division.
Generators
Each generating unit EIA lists at this plant.
| Unit | Technology | Capacity | Status |
|---|---|---|---|
| 1 | Conventional Hydroelectric | 135 MW | |
| 2 | Conventional Hydroelectric | 135 MW | |
| 3 | Conventional Hydroelectric | 135 MW | |
| 4 | Conventional Hydroelectric | 135 MW | |
| 5 | Conventional Hydroelectric | 135 MW | |
| 6 | Conventional Hydroelectric | 135 MW |
Plant details
- Operator
- USACE Northwestern Division
- Location
- Whitman County, Washington
- Balancing authority
- BPAT
- Sector
- Electric Utility
- Capacity
- Operating: 810 MW
- First unit online
- Apr 1975
- EIA plant ID
- 6175
Location
46.6595, -117.4294
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Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem