Snoqualmie 2
Hydro power plant · King County, Washington
Nameplate capacity
39 MW
Rank in Washington
#77
of 139 plants
In service since
1957
January 1957
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Puget Sound Energy Inc
- County
- King County
- Generating units
- 2
- Share of state capacity
- 0.12%
- Rank among hydro plants in Washington
- #35 of 73
- EIA plant code
- 7867
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 7 | Conventional Hydroelectric | 24 MW | 21 MW | 1957 | Operating |
| 6A | Conventional Hydroelectric | 14 MW | 13 MW | 2013 | 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
| Longview Fibre | Other | 45 MW |
| Little Falls (WA) | Hydro | 43 MW |
| Nine Mile | Hydro | 38 MW |
| Cedar Falls (WA) | Hydro | 30 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 39 MW solar plant and a 39 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