Key Energy StorageUnder construction
Fresno County, California · EIA plant ID 68461 · Operator: Key Energy Storage LLC
75 MW under construction · 225 MW planned (Batteries), first expected Dec 2026 · EIA-860M
Nameplate—MWSummer — MW
Generators0in service · 75 MW building
Net generation—GWh12 mo
Capacity factor—not meaningful for storage
Heat rate—thermal plants only
First online—
Capacity factor by year
Net MWh ÷ (summer MW × hours), primary-fuel units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
No capacity factor available.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| KEYBA | Batteries | BA | 75 | 75 | planned Dec 2026 | Under construction | — | coming soon |
| KEYBB | Batteries | BA | 190 | 190 | planned Apr 2027 | Planned | — | coming soon |
| KEYBC | Batteries | BA | 35 | 35 | planned Apr 2027 | Planned | — | coming soon |
Owner / operator
Operator: Key Energy Storage LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Nearby plants
Within 80 km.
| West Gates Solar Station | 10 MW | 0.6 km |
| Fifth Standard Solar PV, LLC (Hybrid) | 287 MW | 3 km |
| Gates Solar Station | 20 MW | 4.7 km |
| Westlands Solar PV Farm | 18 MW | 5 km |
| Sand Luis West | — | 7.7 km |
| DSH (CA) - Coalinga State Hospital | 2 MW | 7.8 km |