33rd largest plant in Colorado · 1486th nationally
Sun Mountain Solar 1 is a solar power plant in Colorado with a nameplate capacity of 200 MW. It generates roughly 454.2k MWh per year — enough to power about 43,253 average U.S. homes.
Its capacity factor of 26% reflects intermittent or peaking operation.
| Plant Name | Sun Mountain Solar 1 |
|---|---|
| Operator | Lightsource Renewable Energy Asset Management, Llc |
| City | Unincorporated Pueblo |
| County | Pueblo County |
| State | Colorado |
| ZIP | 81006 |
| Coordinates | 38.18033, -104.51853 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| COSM1 | Solar Photovoltaic | Solar | 200 MW | Operating | 2022 |
| Owner | Location | Share |
|---|---|---|
| Sun Mountain Solar 1, Llc | San Francisco, CA | 10000.0% |
Ownership reported to EIA Form 860. Percentages reflect reported generator-level ownership share, averaged when a plant has multiple generators.
| NERC Region | WECC |
|---|---|
| Balancing Authority | Public Service Company Of Colorado |
Utility-scale solar farms convert sunlight directly into electricity using photovoltaic panels. They produce zero direct emissions and have no fuel cost, but generation is variable — peaking at midday and falling to zero at night. Capacity factors typically run 18–28% in good locations.