United States › Power plants › Battery storage › California
BATTERY STORAGEKey Energy Storage
Key Energy Storage is a 300 MW under construction battery storage site in Fresno County, California, operated by Key Energy Storage LLC.
Plant statusUnder construction
- Planning (completed)
- Consented (completed)
- Construction (current stage)
- OperatingTarget Dec 2026 (not yet reached)
- Closed (not yet reached)
Planned start of operation reported to EIA: Dec 2026. This plant has generators at more than one stage; see the table below.
Generators
Each generating unit EIA lists at this plant.
| Unit | Technology | Capacity | Status |
|---|---|---|---|
| KEYBB | Batteries | 190 MW | Approved, construction not started |
| KEYBA | Batteries | 75 MW | Under construction (up to 50%) |
| KEYBC | Batteries | 35 MW | Approved, construction not started |
Plant details
- Operator
- Key Energy Storage LLC
- Location
- Fresno County, California
- Balancing authority
- CISO
- Sector
- IPP Non-CHP
- Capacity
- Approved: 225 MW
Under construction: 75.0 MW - EIA plant ID
- 68461
Location
36.1368, -120.1312
Nearby power plants
- West Gates Solar StationSolar farms · 10.0 MW · 0.4 mi
- Fifth Standard Solar PV, LLC (Hybrid)Solar farms, Battery storage · 287 MW · 1.9 mi
- Gates Solar StationSolar farms · 20.0 MW · 2.9 mi
- Westlands Solar PV FarmSolar farms · 18.0 MW · 3.1 mi
- Sand Luis WestSolar farms, Battery storage · 156 MW · 4.8 mi
- DSH (CA) - Coalinga State HospitalSolar farms · 2.0 MW · 4.9 mi
- CDCR (CA) - Pleasant Valley State PrisonSolar farms · 1.2 MW · 5.2 mi
- Huron Solar StationSolar farms · 20.0 MW · 6.4 mi
- CA-DGS RFP-Pleasant Valley State PrisonSolar farms · 2.0 MW · 6.8 mi
- Harris Farms Solar FacilitySolar farms · 1.3 MW · 9.7 mi
Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem