MM San Diego-Miramar
San Diego County, California · EIA plant ID 55094 · Operator: MM San Diego Energy-Miramar
Nameplate7MWSummer 6 MW
Generators4in service
Net generation40GWh12 mo to Dec 2025
Capacity factor71%other units, summer MW
Heat rate—thermal plants only
First online1997
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), other 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.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 45.4 | 83.1% | — |
| 2002 | 48.9 | 89.4% | — |
| 2003 | 42.9 | 78.4% | — |
| 2004 | 50.1 | 91.3% | — |
| 2005 | 49.2 | 90.0% | — |
| 2006 | 50.7 | 92.8% | — |
| 2007 | 46.8 | 83.5% | — |
| 2008 | 47.1 | 83.8% | — |
| 2009 | 50.2 | 89.6% | — |
| 2010 | 52 | 92.7% | — |
| 2011 | 49.2 | 87.8% | — |
| 2012 | 49.3 | 87.7% | — |
| 2013 | 47.3 | 84.4% | — |
| 2014 | 46.1 | 82.2% | — |
| 2015 | 51 | 91.0% | — |
| 2016 | 50.8 | 90.4% | — |
| 2017 | 51.2 | 91.4% | — |
| 2018 | 50.8 | 90.7% | — |
| 2019 | 48.6 | 86.6% | — |
| 2020 | 47.7 | 84.9% | — |
| 2021 | 43.5 | 77.6% | — |
| 2022 | 43.5 | 77.7% | — |
| 2023 | 35.9 | 64.0% | — |
| 2024 | 46.1 | 81.9% | — |
| 2025 | 39.6 | 70.7% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| UNT1 | Landfill Gas | IC | 1.6 | 1.6 | Jul 1997 | Operating | — | coming soon |
| UNT2 | Landfill Gas | IC | 1.9 | 1.6 | Jul 1997 | Operating | — | coming soon |
| UNT3 | Landfill Gas | IC | 1.9 | 1.6 | Jul 1997 | Operating | — | coming soon |
| UNT4 | Landfill Gas | IC | 1.9 | 1.6 | Jul 1997 | Operating | — | coming soon |
Owner / operator
Operator: MM San Diego Energy-Miramar. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| MM San Diego Energy-Miramar | 100.0% | 7 MW |
Nearby plants
Within 80 km.
| EnerSmart Mesa Heights Sub Station | — | 2.5 km |
| Clairemont Energy Storage | 10 MW | 2.9 km |
| Kearny North Energy Storage | 10 MW | 2.9 km |
| Kearny South Energy Storage | 10 MW | 3.1 km |
| County of San Diego COC Hybrid | 2 MW | 3.2 km |
| Kyocera America Project | 4 MW | 3.5 km |