Black Rock Iii is a geothermal power plant in California.
| Plant Name | Black Rock Iii |
|---|---|
| Operator | Ce Obsidian Energy Llc |
| City | Calipatria |
| County | Imperial County |
| State | California |
| ZIP | 92233 |
| Coordinates | 33.15940, -115.61440 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| G303 | Geothermal | Geothermal | 70.0 MW | Indef Postponed | — |
| NERC Region | WECC |
|---|---|
| Balancing Authority | California Independent System Operator |
Geothermal plants tap heat from underground reservoirs to spin steam turbines. They provide carbon-free baseload power with very high capacity factors, but they only work where hot rock is accessible — primarily in the western U.S.