Weeks Falls
Hydro power plant · King County, Washington
Nameplate capacity
4.3 MW
Rank in Washington
#118
of 139 plants
In service since
1990
June 1990
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Eagle Creek Renewable Energy, LLC
- County
- King County
- Generating units
- 1
- Share of state capacity
- 0.01%
- Rank among hydro plants in Washington
- #58 of 73
- EIA plant code
- 54387
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | 4.3 MW | 4.2 MW | 1990 | 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
| LRI LFGTE Facility | Other | 4.5 MW |
| Swauk Wind LLC | Wind | 4.3 MW |
| Horn Rapids Solar, Storage and Training | Solar | 4.2 MW |
| Grimes Way | Other | 4.0 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 4.3 MW solar plant and a 4.3 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