Mira Loma Peaker
San Bernardino County, California · EIA plant ID 56473 · Operator: Southern California Edison Co
Nameplate50MWSummer 49 MW
Generators1in service
Net generation1GWh12 mo to Dec 2025
Capacity factor0%gas/coal/oil units, summer MW
Heat rate15,204Btu/kWhfossil units, electric fuel, HHV
First online2007Runs as rarely runs
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), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2007 | 7.4 | 5.5% | 11,140 |
| 2008 | 4.5 | 1.1% | 11,991 |
| 2009 | 2 | 0.5% | 14,735 |
| 2010 | 4.8 | 1.2% | 12,211 |
| 2011 | 5 | 1.2% | 11,785 |
| 2012 | 21.5 | 5.0% | 10,596 |
| 2013 | 15.2 | 3.5% | 10,799 |
| 2014 | 16.5 | 3.9% | 10,687 |
| 2015 | 25.6 | 5.9% | 10,169 |
| 2016 | 32.6 | 7.6% | 10,103 |
| 2017 | 24.4 | 5.7% | 10,195 |
| 2018 | 24 | 5.6% | 10,126 |
| 2019 | 16.6 | 3.9% | 10,327 |
| 2020 | 20.3 | 4.7% | 10,300 |
| 2021 | 23.9 | 5.6% | 10,245 |
| 2022 | 28.4 | 6.6% | 10,269 |
| 2023 | 11.2 | 2.6% | 11,163 |
| 2024 | 11.3 | 2.6% | 10,508 |
| 2025 | 1.1 | 0.3% | 15,204 |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Natural Gas Fired Combustion Turbine | GT | 49.8 | 49 | Sep 2007 | 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% | 50 MW |
Nearby plants
Within 80 km.
| Mira Loma Energy Storage Facility | 20 MW | 0.1 km |
| Roadhouse Energy Center | — | 0.9 km |
| Chambers 4 - Eastvale LGB3 | 2 MW | 1 km |
| Chambers 4 - Eastvale DCA2 | 2 MW | 1.4 km |
| Mira Loma | 3 MW | 2.3 km |
| Solar Photovoltaic Project #32 | retired | 3.1 km |