Sun Mountain Solar 1
Solar power plant · Pueblo County, Colorado
Nameplate capacity
200 MW
Rank in Colorado
#38
of 326 plants
In service since
2022
December 2022
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Lightsource Renewable Energy Asset Management, LLC
- County
- Pueblo County
- Generating units
- 1
- Share of state capacity
- 0.87%
- Rank among solar plants in Colorado
- #5 of 184
- EIA plant code
- 65032
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| COSM1 | Solar Photovoltaic | 200 MW | 200 MW | 2022 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Colorado
| Limon Wind II | Wind | 200 MW |
| Mount Elbert | Hydro | 200 MW |
| Peetz Table Wind Energy | Wind | 200 MW |
| Arapahoe Combustion Turbine Project | Natural gas | 194 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 200 MW solar plant and a 200 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Colorado power plants · What Colorado actually generates