54th largest plant in Oregon · 3543rd nationally
Oak Grove is a hydroelectric power plant in Oregon with a nameplate capacity of 51.0 MW. It generates roughly 152.1k MWh per year — enough to power about 14,487 average U.S. homes.
Its capacity factor of 34% reflects intermittent or peaking operation.
| Plant Name | Oak Grove |
|---|---|
| Operator | Portland General Electric Co |
| City | Estacada |
| County | Clackamas County |
| State | Oregon |
| ZIP | 97023 |
| Coordinates | 45.12201, -122.06987 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | Water | 25.5 MW | Out of Service | 1924 |
| 2 | Conventional Hydroelectric | Water | 25.5 MW | Out of Service | 1931 |
| NERC Region | WECC |
|---|---|
| Balancing Authority | Portland General Electric Company |
Hydroelectric plants spin turbines using falling or flowing water — typically from a dam-impounded reservoir. They are dispatchable, long-lived, and emission-free at the point of generation, though large reservoirs can disrupt rivers and ecosystems and methane can be released from flooded vegetation.