World Power Plants

Ples I is a 15 MW geothermal power plant in the United States, operated by Ormat Nevada Inc since 1991. Ranked #55 of 65 geothermal plants in the United States. Its 15 MW represents 0.39% of the country's 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 Ples I 77.5 times smaller. Nearby plants within 50 km include Mammoth Pool (190 MW, Hydro), Big Creek 2A (110 MW, Hydro), and Big Creek 1 (88.4 MW, Hydro). The facility is located in California, approximately 200 km east of Fresno.

Capacity
15 MW
Commissioning Year
1991

35 years old

Owner
Ormat Nevada Inc
Location
37.6455°, -118.9096°

United States of America, North America

Context & rankings
  • 4,321. largest of 10,098 plants in United States of America
  • #21,166 worldwide by installed capacity
  • #176 of 215 Geothermal plants worldwide
Age & fleet comparison

35 years in operation

Geothermal fleet average: 26.9 years

Operator portfolio

Ormat Nevada Inc operates 22 plants totalling 663 MW

Regional density

38 plants within 100 km, 3,340 MW combined

Nearest plant: Rush Creek (23.2 km)

Location

Coordinates:: 37.645500, -118.909600
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Carbon Footprint

Zero Direct Emissions

Ples I is a geothermal power plant producing approximately 105 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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