United States › Power plants › Geothermal plants › California
GEOTHERMAL PLANTSTelephone Flat
Telephone Flat is a 49.9 MW cancelled geothermal plant in Siskiyou County, California, operated by Calpine Corporation.
Plant statusWithdrawn / abandoned
- Planning (completed)
- Withdrawn / abandoned (project stopped here)
- Consented (not reached)
- Construction (not reached)
- Operating (not reached)
- Closed (not reached)
Generators
Each generating unit EIA lists at this plant.
| Unit | Technology | Capacity | Status |
|---|---|---|---|
| 1 | Geothermal | 50 MW | Cancelled or postponed |
Plant details
- Operator
- Calpine Corporation
- Location
- Siskiyou County, California
- Balancing authority
- CISO
- Sector
- IPP Non-CHP
- Capacity
- Cancelled: 49.9 MW
- EIA plant ID
- 55846
Location
41.5633, -121.5708
Nearby power plants
- OR Solar 5, LLCSolar farms · 8.0 MW · 32.3 mi
- OR Solar 3, LLCSolar farms · 10.0 MW · 32.7 mi
- SkysolSolar farms · 61.2 MW · 33.7 mi
- Shasta Solar FarmSolar farms · 3.0 MW · 37.5 mi
- Pit 1Hydroelectric plants · 69.2 MW · 39.7 mi
- Hat Creek BioenergyBioenergy plants · 3.6 MW · 39.9 mi
- Pit 3Hydroelectric plants · 80.1 MW · 40.2 mi
- Nelson CreekHydroelectric plants · 1.2 MW · 40.5 mi
- Pit 4Hydroelectric plants · 103 MW · 42.4 mi
- Round LakeSolar farms · 1.0 MW · 42.7 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