How many geothermal power plants are in Oregon?

2, with 37 MW of nameplate capacity between them, spread over 2 counties. That is the EIA-860M operating count for 2026-07.

Is there a map of Oregon geothermal power plants?

Yes — the map above. Each dot is one geothermal power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.

Which is the largest geothermal power plant in Oregon?

Neal Hot Springs Geothermal Project, at 33 MW. The table is sorted largest first, so the rest follow it.

Is there a geothermal power plant near me in Oregon?

The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.

Which grid operator runs Oregon's geothermal power plants?

No single ISO or RTO covers most of them. EIA files each plant against its own balancing authority, which in Oregon is largely a vertically integrated utility rather than an organised market.

How current is this, and what is left out?

EIA-860M for 2026-07. EIA technology "Geothermal". Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.

Geothermal Power Plants in Oregon

Every operating geothermal power plant in Oregon on EIA-860M for 2026-07: 2 plants, 4 generating units and 37 MW of nameplate capacity across 2 counties.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Plants: 2; 4 generating units
Nameplate capacity: 37 MW
Counties: 2
Grid operator: Mixed; no single ISO covers a majority

Map of geothermal power plants in Oregon

Every one of the 2 plants is drawn at the coordinate EIA files for it.

Loading map…

Geothermal · 2

List of geothermal power plants in Oregon

Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.

geothermal power plants in Oregon

Neal Hot Springs Geothermal ProjectGeothermal	US Geothermal Inc.	Malheur	33	3	2012	Operating
Paisley Geothermal Generating PlantGeothermal	Surprise Valley Electrification	Lake	3.7	1	2015	Out of service and NOT expected to return to service in next calendar year

Largest geothermal power plants in Oregon

1Neal Hot Springs Geothermal ProjectMalheur County, Oregon33 MW
2Paisley Geothermal Generating PlantLake County, Oregon3.7 MW

Geothermal power plants by county in Oregon

The county EIA files against each plant. It is the fastest way to find the plant nearest a given town.

County	Plants	Nameplate MW
Malheur	1	33
Lake	1	3.7

Geothermal Power Plants in Oregon: FAQ

How many geothermal power plants are in Oregon?: 2, with 37 MW of nameplate capacity between them, spread over 2 counties. That is the EIA-860M operating count for 2026-07.
Is there a map of Oregon geothermal power plants?: Yes — the map above. Each dot is one geothermal power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.
Which is the largest geothermal power plant in Oregon?: Neal Hot Springs Geothermal Project, at 33 MW. The table is sorted largest first, so the rest follow it.
Is there a geothermal power plant near me in Oregon?: The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.
Which grid operator runs Oregon's geothermal power plants?: No single ISO or RTO covers most of them. EIA files each plant against its own balancing authority, which in Oregon is largely a vertically integrated utility rather than an organised market.
How current is this, and what is left out?: EIA-860M for 2026-07. EIA technology "Geothermal". Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.