32 plants · 2.9 GW total capacity
Geothermal generation in California includes 32 plants with 2.9 GW total capacity.
Largest is Geysers Unit 5-20 (1236 MW Geothermal); oldest active is Geysers Unit 5-20 (1971); newest is CD4 (2022); top owner is Berkshire Hathaway (10 plants).