Tumbleweed Energy Storage
Battery storage power plant · Kern County, California
Details
- Primary fuel
- Battery storage
- Technology
- Batteries
- Operator
- Tumbleweed Energy Storage, LLC
- County
- Kern County
- Generating units
- 2
- Share of state capacity
- 0.12%
- Rank among battery storage plants in California
- #25 of 142
- EIA plant code
- 66666
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| TWES2 | Batteries | 75 MW | 75 MW | 2024 | Operating |
| TWES1 | Batteries | 50 MW | 50 MW | 2024 | 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
| LeConte Energy Storage | Battery storage | 125 MW |
| Maverick Solar, LLC | Solar | 125 MW |
| Middle Fork | Hydro | 122 MW |
| Malaga Power LLC | Natural gas | 121 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 125 MW solar plant and a 125 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