Mesquite Solar 5, LLC
Solar power plant · Maricopa County, Arizona
Nameplate capacity
120 MW
Rank in Arizona
#79
of 200 plants
In service since
2023
July 2023
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- RWE Clean Energy
- County
- Maricopa County
- Generating units
- 2
- Share of state capacity
- 0.28%
- Rank among solar plants in Arizona
- #25 of 105
- EIA plant code
- 65963
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| MS5 | Solar Photovoltaic | 60 MW | 60 MW | 2023 | Operating |
| MS5B | Batteries | 60 MW | 60 MW | 2023 | 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 Arizona
| Arlington Valley Solar Energy I | Solar | 127 MW |
| Black Mountain Generating Station | Natural gas | 121 MW |
| Sierra Pinta BESS | Battery storage | 113 MW |
| Valencia | Natural gas | 108 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 120 MW solar plant and a 120 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 Arizona power plants · What Arizona actually generates