Oak Grove
Hydro power plant · Clackamas County, Oregon · not currently in service
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Portland General Electric Co
- County
- Clackamas County
- Generating units
- 2
- Share of state capacity
- 0.27%
- Rank among hydro plants in Oregon
- #13 of 63
- EIA plant code
- 6505
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | 26 MW | 22 MW | 2024 | Out of service and NOT expected to return to service in next calendar year |
| 2 | Conventional Hydroelectric | 26 MW | 22 MW | 1931 | Out of service and NOT expected to return to service in next calendar year |
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 Oregon
| Solar Star Oregon II | Solar | 56 MW |
| Dillard Complex | Other | 52 MW |
| Condon Windpower LLC | Wind | 50 MW |
| Lost Creek | Hydro | 49 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 51 MW solar plant and a 51 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 Oregon power plants · What Oregon actually generates