Roadrunner Solar and BESS
Battery storage power plant · Cochise County, Arizona
Nameplate capacity
470 MW
Rank in Arizona
#32
of 200 plants
In service since
2025
December 2025
Details
- Primary fuel
- Battery storage
- Technology
- Batteries
- Operator
- Clenera LLC
- County
- Cochise County
- Generating units
- 2
- Share of state capacity
- 1.10%
- Rank among battery storage plants in Arizona
- #2 of 35
- EIA plant code
- 67823
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| RRBES | Batteries | 235 MW | 235 MW | 2026 | Operating |
| RRPV | Solar Photovoltaic | 235 MW | 235 MW | 2025 | 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
| H Wilson Sundt Generating Station | Natural gas | 529 MW |
| West Camp Wind Farm | Wind | 500 MW |
| McFarland B Solar and Storage | Solar | 450 MW |
| Sun Streams 3 | Solar | 430 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 470 MW solar plant and a 470 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