Explore the largest geothermal power plants in the US and see all the utility-scale geothermal projects in the US on a map.
Last updated: May 2026
On this page, you can explore our real-time database of geothermal power plants in the US. Each month, we track geothermal projects and update our list of the largest geothermal power plants in the US.
As of May 2026, there are 66 utility-scale geothermal power plants in the US, according to Cleanview's project tracker. Their total operating capacity is 4,068 MW. In 2025, there were 2 geothermal power plants built in the US.
Total Geothermal Power Plants
66
Total Capacity
4,068 MW
Built in 2025
2
Map of geothermal power plants across the United States. Marker size reflects capacity — only facilities with reported capacity data are shown.
1,236 MW
Year Operational: October 1985
Location: Sonoma, California
176 MW
Year Operational: March 1984
Location: Lake, California
110 MW
Year Operational: January 1983
Location: Sonoma, California
110 MW
Year Operational: May 1986
Location: Sonoma, California
104 MW
Year Operational: September 2023
Location: Lander, Nevada
99 MW
Year Operational: April 2021
Location: Lander, Nevada
Developer: Ormat Technologies
92 MW
Year Operational: November 1988
Location: Inyo, California
92 MW
Year Operational: September 2023
Location: Imperial, California
90 MW
Year Operational: December 1989
Location: Inyo, California
16 MW
Year Operational: April 2025
Location: Cassia, Idaho
19 MW
Year Operational: February 2025
Location: Imperial, California
29 MW
Year Operational: June 2024
Location: Lander, Nevada
Developer: Ormat Technologies
92 MW
Year Operational: September 2023
Location: Imperial, California
104 MW
Year Operational: September 2023
Location: Lander, Nevada
32 MW
Year Operational: April 2023
Location: Washoe, Nevada
Developer: Ormat Technologies
75 MW
Year Operational: November 2022
Location: Imperial, California
22 MW
Year Operational: August 2022
Location: Pershing, Nevada
44 MW
Year Operational: July 2022
Location: Mono, California
Cleanview