United States βΊ Power plants βΊ Geothermal plants βΊ California
GEOTHERMAL PLANTSMammoth G1
Mammoth G1 is a 10.0 MW operating geothermal plant in Mono County, California, operated by Ormat Nevada Inc.
Generators
Each generating unit EIA lists at this plant.
| Unit | Technology | Capacity | Status |
|---|---|---|---|
| GEN1 | Geothermal | 5.0 MW | |
| GEN2 | Geothermal | 5.0 MW |
Plant details
- Operator
- Ormat Nevada Inc
- Location
- Mono County, California
- Balancing authority
- CISO
- Sector
- IPP Non-CHP
- Capacity
- Operating: 10.0 MW
- First unit online
- Dec 1984
- EIA plant ID
- 10480
Location
37.6451, -118.9143
Nearby power plants
- CD4Geothermal plants Β· 44.4 MW Β· 0.1 mi
- Mammoth G3Geothermal plants Β· 15.0 MW Β· 0.3 mi
- Mammoth G2Geothermal plants Β· 15.0 MW Β· 0.3 mi
- Rush CreekHydroelectric plants Β· 13.1 MW Β· 14.2 mi
- Upper GorgeHydroelectric plants Β· 37.5 MW Β· 19.0 mi
- Middle GorgeHydroelectric plants Β· 37.5 MW Β· 21.1 mi
- Control GorgeHydroelectric plants Β· 37.5 MW Β· 24.3 mi
- PooleHydroelectric plants Β· 11.3 MW Β· 26.4 mi
- Pleasant Valley HydroHydroelectric plants Β· 3.2 MW Β· 26.7 mi
- PortalHydroelectric plants Β· 10.8 MW Β· 30.0 mi
Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem