United States › Power plants › Geothermal plants › California
GEOTHERMAL PLANTSFour Mile Hill
Four Mile Hill 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- Withdrawn / abandoned (project stopped here)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
- 55845
Location
41.6014, -121.6250
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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