McCoy Solar Energy Project Hybrid
Battery storage power plant · Riverside County, California
Details
- Primary fuel
- Battery storage
- Technology
- Batteries
- Operator
- McCoy Solar, LLC
- County
- Riverside County
- Generating units
- 9
- Share of state capacity
- 0.46%
- Rank among battery storage plants in California
- #3 of 142
- EIA plant code
- 58462
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| MCST1 | Batteries | 230 MW | 230 MW | 2021 | Operating |
| 1 | Solar Photovoltaic | 42 MW | 42 MW | 2016 | Operating |
| BLK7 | Solar Photovoltaic | 42 MW | 42 MW | 2016 | Operating |
| BLK3 | Solar Photovoltaic | 40 MW | 40 MW | 2016 | Operating |
| BLK8 | Solar Photovoltaic | 37 MW | 37 MW | 2015 | Operating |
| BLK4 | Solar Photovoltaic | 31 MW | 31 MW | 2015 | Operating |
| BLK5 | Solar Photovoltaic | 31 MW | 31 MW | 2015 | Operating |
| BLK6 | Solar Photovoltaic | 27 MW | 27 MW | 2015 | Operating |
| BLK2 | Solar Photovoltaic | 21 MW | 21 MW | 2016 | 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 California
| Rexford Solar Farm | Solar | 540 MW |
| El Segundo Energy Center LLC | Natural gas | 537 MW |
| Walnut Creek Energy Park | Natural gas | 500 MW |
| Solar Blue | Solar | 475 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 501 MW solar plant and a 501 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 California power plants · What California actually generates