Nameplate capacity
13 MW
Rank in Arizona
#142
of 200 plants
In service since
2022
June 2022
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Tucson Electric Power Co
- County
- Pima County
- Generating units
- 1
- Share of state capacity
- 0.03%
- Rank among solar plants in Arizona
- #58 of 105
- EIA plant code
- 65972
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| RRS | Solar Photovoltaic | 13 MW | 13 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 Arizona
| Stewart Mountain | Hydro | 13 MW |
| Davis Monthan AFB (AZ) West Airfield | Solar | 13 MW |
| Iron Horse Battery Storage Hybrid | Battery storage | 12 MW |
| Luke Solar | Solar | 11 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 13 MW solar plant and a 13 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