World Power Plants

Aidlin Geothermal Power Plant25 MW Geothermal

GeothermalRenewableVerified: Jul 2026

Aidlin Geothermal Power Plant is a 25 MW geothermal power plant in the United States, operated by Geysers Power Co LLC and commissioned in 1989. Ranked #38 of 65 geothermal plants in the United States. Its 25 MW represents 0.64% of the United States' total geothermal capacity of 3,889 MW. The largest geothermal plant in the United States is Geysers Unit 5-20 at 1,163 MW, making Aidlin 46 times smaller. Nearby plants within 50 km include Geysers Unit 5-20 (1,163 MW, Geothermal), Calistoga Power Plant (176.4 MW, Geothermal), and Geothermal 1 (110 MW, Geothermal). The facility is located in California, approximately 150 km north of San Francisco.

Capacity
25 MW
Commissioning Year
1989

37 years old

Owner
Geysers Power Co LLC
Location
38.8339°, -122.8810°

United States of America, North America

Context & rankings
  • 3,660. largest of 10,098 plants in United States of America
  • #17,704 worldwide by installed capacity
  • #126 of 215 Geothermal plants worldwide
Age & fleet comparison

37 years in operation

Geothermal fleet average: 26.9 years

Operator portfolio

Geysers Power Co LLC operates 4 plants totalling 1,442 MW

Regional density

51 plants within 100 km, 2,648 MW combined

Nearest plant: Bottle Rock Power (9.8 km)

Location

Coordinates:: 38.833900, -122.881000
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Aidlin Geothermal Power Plant is a geothermal power plant producing approximately 175 GWh of clean electricity per year with zero direct CO₂ emissions during operation.

Lifecycle emissions: ~38 g CO₂/kWh (manufacturing, transport, decommissioning)

Technical Details

Primary Fuel Type
Geothermal
Energy Source
Renewable
Country
United States of America
Continent
North America
Data Source
Global Power Plant Database

United States of AmericaEnergy Profile

10,098
Total Plants
1420.7 GW
Total Capacity
GasCoalNuclearWind
Top Fuels

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