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Top Geothermal Power Generators

List includes companies producing electrical power using geothermal technologies, ranked by their global active power generation capacity

Calpine Corp
Headquarters

United States of America

Sector

Power

Parent/Subsidiary/Independent

Parent

Lopez Inc
Headquarters

Philippines

Sector

Alternative Energy

Parent/Subsidiary/Independent

Parent

Lopez Inc
Ormat Technologies Inc
Headquarters

United States of America

Sector

Alternative Energy

Parent/Subsidiary/Independent

Subsidiary

Enel SpA
Headquarters

Italy

Sector

Power

Parent/Subsidiary/Independent

Parent

Comision Federal de Electricidad
Headquarters

Mexico

Sector

Power

Parent/Subsidiary/Independent

Parent

Kenya Electricity Generating Co Ltd
Headquarters

Kenya

Sector

Power

Parent/Subsidiary/Independent

Independent

Contact Energy Ltd
Headquarters

New Zealand

Sector

Power

Parent/Subsidiary/Independent

Parent

Orkuveita Reykjavikur
Headquarters

Iceland

Sector

Alternative Energy

Parent/Subsidiary/Independent

Parent

CalEnergy Generation Operating Co
Headquarters

United States of America

Sector

Alternative Energy

Parent/Subsidiary/Independent

Subsidiary (of BHE Renewables LLC)

CalEnergy Generation Operating Co
Sarulla Operations Ltd
Headquarters

Indonesia

Sector

Power

Parent/Subsidiary/Independent

Independent

Sarulla Operations Ltd
Electricity Generating Public Co Ltd
Headquarters

Thailand

Sector

Power

Parent/Subsidiary/Independent

Parent

Instituto Costarricense de Electricidad
Headquarters

Costa Rica

Sector

Power

Parent/Subsidiary/Independent

Parent

Instituto Costarricense de Electricidad
Tohoku Electric Power Co Inc
Headquarters

Japan

Sector

Power

Parent/Subsidiary/Independent

Parent

Terra-Gen Power Holdings LLC
Headquarters

United States of America

Sector

Power

Parent/Subsidiary/Independent

Parent

Terra-Gen Power Holdings LLC
PT PLN (Persero)
Headquarters

Indonesia

Sector

Power

Parent/Subsidiary/Independent

Parent

Northern California Power Agency
Headquarters

United States of America

Sector

Power

Parent/Subsidiary/Independent

Independent

Northern California Power Agency
Kipas Holding A.S
Headquarters

Turkey

Sector

Conglomerate

Parent/Subsidiary/Independent

Parent

Kipas Holding A.S
Kyushu Electric Power Co Inc
Headquarters

Japan

Sector

Power

Parent/Subsidiary/Independent

Parent

Mercury NZ Ltd
Headquarters

New Zealand

Sector

Power

Parent/Subsidiary/Independent

Parent

Guris Holding Co Inc
Headquarters

Turkey

Sector

Construction

Parent/Subsidiary/Independent

Subsidiary (of Guris Construction and Engineering Co Inc)

Guris Holding Co Inc
Lageo SA de CV
Headquarters

El Salvador

Sector

Alternative Energy

Parent/Subsidiary/Independent

Subsidiary (of Inversiones Energeticas S.A.)

Lageo SA de CV
Celikler Holding
Headquarters

Turkey

Sector

Metals and Mining

Parent/Subsidiary/Independent

Parent

Celikler Holding
Celikler Yatirim Holding AS
Headquarters

Turkey

Sector

Alternative Energy

Parent/Subsidiary/Independent

Parent

Celikler Yatirim Holding AS
Landsvirkjun hf
Headquarters

Iceland

Sector

Alternative Energy

Parent/Subsidiary/Independent

Parent

PT Star Energy
Headquarters

Indonesia

Sector

Alternative Energy

Parent/Subsidiary/Independent

Subsidiary (of IGas Energy PLC)

PT Star Energy
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