Axial Basin Solar
Solar power plant · Moffat County, Colorado
Nameplate capacity
145 MW
Rank in Colorado
#51
of 326 plants
In service since
2025
October 2025
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Tri-State G & T Assn, Inc
- County
- Moffat County
- Generating units
- 1
- Share of state capacity
- 0.63%
- Rank among solar plants in Colorado
- #8 of 184
- EIA plant code
- 65480
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| CO505 | Solar Photovoltaic | 145 MW | 145 MW | 2025 | 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
| Black Hollow Sun | Solar | 150 MW |
| Carousel Wind Farm LLC | Wind | 150 MW |
| Panorama Wind, LLC | Wind | 145 MW |
| Valmont Combustion Turbine Project | Natural gas | 142 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 145 MW solar plant and a 145 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