Orchard Avenue 1
Hydro power plant · Yakima County, Washington
Nameplate capacity
1.6 MW
Rank in Washington
#132
of 139 plants
In service since
1987
March 1987
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Yakima-Tieton Irrigation Dist
- County
- Yakima County
- Generating units
- 2
- Share of state capacity
- 0.01%
- Rank among hydro plants in Washington
- #68 of 73
- EIA plant code
- 50421
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 201 | Conventional Hydroelectric | 0.8 MW | 0.8 MW | 1987 | Operating |
| 301 | Conventional Hydroelectric | 0.8 MW | 0.8 MW | 1987 | 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
| Cowiche | Hydro | 1.7 MW |
| Drop 3 (WA) | Hydro | 1.6 MW |
| Rocky Brook Hydroelectric | Hydro | 1.6 MW |
| Sheep Creek Hydro | Hydro | 1.6 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 1.6 MW solar plant and a 1.6 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