Tracy BESSUnder construction
San Joaquin County, California · EIA plant ID 69539 · Operator: Tracy BESS LLC
40 MW under construction (Batteries), first expected May 2027 · EIA-860M
Nameplate—MWSummer — MW
Generators0in service · 40 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 |
|---|---|---|---|---|---|---|---|---|
| TRAB | Batteries | BA | 40 | 40 | planned May 2027 | Under construction | — | coming soon |
Owner / operator
Operator: Tracy BESS 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.
| Zeus BESS | — | 0.1 km |
| Tracy Combined Cycle Power Plant | 336 MW | 0.1 km |
| Foundation ST | 2 MW | 2.8 km |
| Medline Ind. Phase 2 Tracy | 1 MW | 3.1 km |
| Tracy 210 | 3 MW | 3.8 km |
| Prologis L.P | 3 MW | 3.8 km |