Mordor ES1
Battery storage power plant · Inyo County, California
Details
- Primary fuel
- Battery storage
- Technology
- Batteries
- Operator
- Mordor ES1 LLC
- County
- Inyo County
- Generating units
- 1
- Share of state capacity
- 0.02%
- Rank among battery storage plants in California
- #74 of 142
- EIA plant code
- 67828
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| MES1 | Batteries | 25 MW | 25 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 California
| Axium Modesto Solar | Solar | 25 MW |
| Cascade Energy Storage, LLC | Battery storage | 25 MW |
| Pacific-Ultrapower Chinese Station | Other | 25 MW |
| West Ford Flat | Battery storage | 25 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 25 MW solar plant and a 25 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