Merwin
A 136 MW hydroelectric power plant in Cowlitz, Washington, owned by PacifiCorp, commissioned in 1931.
Facility nameplate · EIA Plant ID 3847Hydroelectric
Nameplate capacity
136 MW
Primary fuel
Hydroelectric
Commissioned
1931
Owner
PacifiCorp
Location
Cowlitz, Washington
Coordinates
Generation (2024)
467.3 GWh
Status
Operating
Technology
Conventional Hydroelectric
Units
4
Reported annual generation
| Year | GWh | |
|---|---|---|
| 2015 | 398.8 | |
| 2016 | 560.1 | |
| 2017 | 629.6 | |
| 2018 | 450.5 | |
| 2019 | 337 | |
| 2020 | 471.7 | |
| 2021 | 465.7 | |
| 2022 | 487.1 | |
| 2023 | 471.6 | |
| 2024 | 467.3 |
Nearby power plants
| Plant | Fuel | Capacity | Distance |
|---|---|---|---|
| Yale | Hydroelectric | 134 MW | ~17 km |
| Swift 2 | Hydroelectric | 72 MW | ~25 km |
| Swift 1 | Hydroelectric | 240 MW | ~30 km |
| Longview Fibre | Biomass | 45 MW | ~32 km |
| River Road Gen Plant | Natural Gas | 248 MW | ~37 km |
| Nippon Dynawave Packaging Longview WA | Biomass | 62.4 MW | ~37 km |
See all hydroelectric plants in Washington or browse all plants in Washington.