Oregon has 286 power plants in the EIA (Energy Information Administration) database, with a combined installed capacity of 17,695 MW. Renewables (solar, wind, hydro, geothermal, biomass) account for 94% of plants in the state. The largest single facility is John Day, a Hydroelectric plant with 2,052 MW of capacity.
Use the interactive Oregon power plants map below to explore every generating facility, color-coded by fuel type. Click any plant for its name, utility operator, capacity, technology, and location — or view the full US Power Plants Interactive Map to compare Oregon to every other state.
Oregon Power Plants by the Numbers
- 286 total power plants in Oregon (EIA (Energy Information Administration))
- 17,695 MW total installed generating capacity
- 94% of plants use renewable energy sources
- Dominant fuel type: Solar
Oregon Power Plants by Fuel Type
- Solar: 133 plants (1,005 MW capacity)
- Hydroelectric: 63 plants (8,264 MW capacity)
- Wind: 49 plants (4,050 MW capacity)
- Biomass: 23 plants (295 MW capacity)
- Natural Gas: 13 plants (3,769 MW capacity)
- Batteries: 3 plants (292 MW capacity)
- Geothermal: 2 plants (20 MW capacity)
The 15 Largest Power Plants in Oregon
The largest power plant in Oregon by installed capacity is John Day at 2,052 MW. The 15 largest Oregon power plants from the EIA (Energy Information Administration):
| # | Plant Name | Utility | Capacity | Fuel Type | Location |
|---|---|---|---|---|---|
| 1 | John Day | USACE Northwestern Division | 2,052 MW | Hydroelectric | Rufus, Sherman |
| 2 | The Dalles | USACE Northwestern Division | 1,823 MW | Hydroelectric | The Dalles, Wasco |
| 3 | Bonneville | USACE Northwestern Division | 1,154 MW | Hydroelectric | Cascade Locks, Multnomah |
| 4 | McNary | USACE Northwestern Division | 966 MW | Hydroelectric | Umatilla, Umatilla |
| 5 | Hermiston Power Partnership | Hermiston Power Partnership | 629 MW | Natural Gas | Hermiston, Umatilla |
| 6 | Beaver | Portland General Electric Co | 493 MW | Natural Gas | Clatskanie, Columbia |
| 7 | Klamath Cogeneration Plant | Klamath Energy LLC | 490 MW | Natural Gas | Klamath Falls, Klamath |
| 8 | Hermiston Generating Plant | Hermiston Generating Co LP | 464 MW | Natural Gas | Hermiston, Umatilla |
| 9 | Biglow Canyon Wind Farm | Portland General Electric Co | 450 MW | Wind | Wasco, Sherman |
| 10 | Hells Canyon | Idaho Power Co | 437 MW | Hydroelectric | Oxbow, Wallowa |
| 11 | Carty Generating Station | Portland General Electric Co | 416 MW | Natural Gas | Boardman, Morrow |
| 12 | Port Westward | Portland General Electric Co | 392 MW | Natural Gas | Clatskanie, Columbia |
| 13 | Round Butte | Portland General Electric Co | 353 MW | Hydroelectric | Madras, Jefferson |
| 14 | Klondike Windpower III | Avangrid Power LLC | 298 MW | Wind | Wasco, Sherman |
| 15 | Coyote Springs II | Avista Corp | 290 MW | Natural Gas | Boardman, Morrow |
Energy Regulation in Oregon
Power generation in Oregon is overseen by the Oregon Public Utility Commission, in coordination with the Federal Energy Regulatory Commission (FERC) and the North American Electric Reliability Corporation (NERC). All generating facilities above 1 MW are required to report to the EIA, which maintains the official database used in this map.
Frequently Asked Questions
How many power plants are in Oregon?
Oregon has 286 power plants according to the EIA (Energy Information Administration). The dominant fuel type is Solar, and total installed capacity is 17,695 MW.
What is the largest power plant in Oregon?
The largest power plant in Oregon is John Day, a Hydroelectric facility with 2,052 MW of generating capacity.
What percentage of Oregon power plants use renewable energy?
94% of power plants in Oregon use renewable energy sources (solar, wind, hydroelectric, geothermal, or biomass).
Who regulates power plants in Oregon?
Power generation in Oregon is regulated by the Oregon Public Utility Commission at the state level, with federal oversight from FERC and NERC.
