Acid BESS
Fresno County, California · EIA plant ID 66659 · Operator: Malaga BESS LLC
Nameplate97MWSummer 97 MW
Generators1in service
Net generation-4GWh12 mo to Aug 2026
Capacity factor—not meaningful for storage
Heat rate—thermal plants only
First online2025
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2025 | -3.4 | — | — |
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 |
|---|---|---|---|---|---|---|---|---|
| MAL | Batteries | BA | 97 | 97 | Mar 2025 | Operating | — | coming soon |
Owner / operator
Operator: Malaga BESS LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Malaga BESS LLC | 100.0% | 97 MW |
Nearby plants
Within 80 km.
| Malaga Power LLC | 121 MW | 1.1 km |
| JD Foods - JD Foods | 2 MW | 1.4 km |
| Rio Bravo Fresno | retired | 1.5 km |
| Vitro Flat Glass LLC | 3 MW | 1.8 km |
| CA - Fresno County - Juvenile Hall | 3 MW | 3.5 km |
| OK Produce Fresno Carport | 2 MW | 4.8 km |