Nameplate capacity
64 MW
Rank in Washington
#66
of 139 plants
In service since
1945
September 1945
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- City of Tacoma - (WA)
- County
- Pierce County
- Generating units
- 5
- Share of state capacity
- 0.20%
- Rank among hydro plants in Washington
- #30 of 73
- EIA plant code
- 3916
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 5 | Conventional Hydroelectric | 40 MW | 40 MW | 1945 | Operating |
| 1 | Conventional Hydroelectric | 6.0 MW | 6.0 MW | 2012 | Operating |
| 2 | Conventional Hydroelectric | 6.0 MW | 6.0 MW | 2012 | Operating |
| 3 | Conventional Hydroelectric | 6.0 MW | 6.0 MW | 2012 | Operating |
| 4 | Conventional Hydroelectric | 6.0 MW | 6.0 MW | 2012 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Washington
| Cowlitz Falls | Hydro | 70 MW |
| Long Lake | Hydro | 70 MW |
| Nippon Dynawave Packaging Longview WA | Other | 62 MW |
| Northeast (WA) | Natural gas | 62 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 64 MW solar plant and a 64 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Washington power plants · What Washington actually generates