Castle Solar, LLC
Solar power plant · Emery County, Utah
Nameplate capacity
40 MW
Rank in Utah
#50
of 131 plants
In service since
2024
April 2024
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Castle Solar, LLC
- County
- Emery County
- Generating units
- 1
- Share of state capacity
- 0.35%
- Rank among solar plants in Utah
- #29 of 55
- EIA plant code
- 64740
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| CS | Solar Photovoltaic | 40 MW | 40 MW | 2024 | 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 Utah
| Pavant Solar, LLC | Solar | 50 MW |
| Murray Turbine | Natural gas | 42 MW |
| Kennecott Power Plant | Other | 38 MW |
| Blundell | Other | 38 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 40 MW solar plant and a 40 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 Utah power plants · What Utah actually generates