Paloma Solar Hybrid
Battery storage power plant · Maricopa County, Arizona
Nameplate capacity
34 MW
Rank in Arizona
#116
of 200 plants
In service since
2011
September 2011
Details
- Primary fuel
- Battery storage
- Technology
- Batteries
- Operator
- Arizona Public Service Co
- County
- Maricopa County
- Generating units
- 2
- Share of state capacity
- 0.08%
- Rank among battery storage plants in Arizona
- #29 of 35
- EIA plant code
- 57562
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| PA17M | Batteries | 17 MW | 17 MW | 2023 | Operating |
| PV1 | Solar Photovoltaic | 17 MW | 17 MW | 2011 | 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
| Roosevelt | Hydro | 36 MW |
| Cotton Center Solar Hybrid | Battery storage | 34 MW |
| Mohave Energy - Hybrid | Solar | 33 MW |
| OE_AZ1 | Solar | 33 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 34 MW solar plant and a 34 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