Mira Loma Energy Storage Facility
San Bernardino County, California · EIA plant ID 60661 · Operator: Southern California Edison Co
Nameplate20MWSummer 20 MW
Generators2in service
Net generation-2GWh12 mo to Dec 2025
Capacity factor—not meaningful for storage
Heat rate—thermal plants only
First online2016
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) |
|---|---|---|---|
| 2016 | 0 | — | — |
| 2017 | 13.4 | — | — |
| 2018 | 0 | — | — |
| 2019 | 0 | — | — |
| 2020 | 0 | — | — |
| 2021 | 0 | — | — |
| 2022 | 0 | — | — |
| 2023 | 0 | — | — |
| 2024 | -1.9 | — | — |
| 2025 | -2.4 | — | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 013A | Batteries | BA | 10 | 10 | Dec 2016 | Operating | — | coming soon |
| 013B | Batteries | BA | 10 | 10 | Dec 2016 | Operating | — | coming soon |
Owner / operator
Operator: Southern California Edison Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Southern California Edison Co | 100.0% | 20 MW |
Nearby plants
Within 80 km.
| Mira Loma Peaker | 50 MW | 0.1 km |
| Roadhouse Energy Center | — | 0.8 km |
| Chambers 4 - Eastvale LGB3 | 2 MW | 1.1 km |
| Chambers 4 - Eastvale DCA2 | 2 MW | 1.5 km |
| Mira Loma | 3 MW | 2.3 km |
| Solar Photovoltaic Project #32 | retired | 3 km |