United States βΊ Power plants βΊ Hydroelectric plants βΊ Washington
HYDROELECTRIC PLANTSMerwin
Merwin is a 136 MW operating hydroelectric plant in Cowlitz County, Washington, operated by PacifiCorp.
Generators
Each generating unit EIA lists at this plant.
| Unit | Technology | Capacity | Status |
|---|---|---|---|
| 1 | Conventional Hydroelectric | 45 MW | |
| 2 | Conventional Hydroelectric | 45 MW | |
| 3 | Conventional Hydroelectric | 45 MW | |
| House | Conventional Hydroelectric | 1.0 MW |
Plant details
- Operator
- PacifiCorp
- Location
- Cowlitz County, Washington
- Balancing authority
- PACW
- Sector
- Electric Utility
- Capacity
- Operating: 136 MW
- First unit online
- Jul 1931
- EIA plant ID
- 3847
Location
45.9567, -122.5544
Nearby power plants
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- Longview FibreBioenergy plants Β· 45.0 MW Β· 20.2 mi
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- Sundial (Troutdale) BESSBattery storage Β· 200 MW Β· 28.2 mi
- Oregon Convention CenterSolar farms Β· 1.4 MW Β· 30.1 mi
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