Paisley Geothermal Generating Plant

Paisley Geothermal Generating Plant is a 4 MW geothermal power plant in Lake County, Oregon, operated by Surprise Valley Electrification. EIA-860M lists 1 generating unit here. Its unit entered service in 2015.

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

Nameplate capacity
3.7 MW
1.8 MW net summer
Generating units
1
In service
2015
EIA plant ID
59382

Where it is

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County
Lake County, Oregon
Coordinates
42.6958, -120.5578
Balancing authority
PACW
Sector
Electric Utility

Units, technology and status

Operator of record
Surprise Valley Electrification
Primary energy source
Geothermal
Technologies
Geothermal
Status
Out of service and NOT expected to return to service in next calendar year

Every plant Surprise Valley Electrification reports to EIA →

Paisley Geothermal Generating Plant: FAQ

Where is Paisley Geothermal Generating Plant?
In Lake County, Oregon (OR). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
How big is Paisley Geothermal Generating Plant?
4 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Paisley Geothermal Generating Plant?
EIA-860M names Surprise Valley Electrification as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is this the same as Paisley Geothermal Generating Plant LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Surprise Valley Electrification here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Paisley Geothermal Generating Plant LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Paisley Geothermal Generating Plant still running?
EIA-860M files it as "Out of service and NOT expected to return to service in next calendar year" for 2026-07. Statuses change monthly, and this page follows the monthly release.