Palomar Energy
San Diego County, California · EIA plant ID 55985 · Operator: San Diego Gas & Electric Co
Nameplate559MWSummer 581 MW
Generators3in service
Net generation1,164GWh12 mo to Aug 2026
Capacity factor23%gas/coal/oil units, summer MW
Heat rate7,082Btu/kWhfossil units, electric fuel, HHV
First online2005Runs as intermediate
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), 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) |
|---|---|---|---|
| 2006 | 2,475.1 | 55.4% | 7,019 |
| 2007 | 3,352.8 | 73.3% | 7,041 |
| 2008 | 3,590.4 | 72.7% | 6,959 |
| 2009 | 3,296.8 | 67.0% | 7,011 |
| 2010 | 3,197.9 | 65.0% | 6,975 |
| 2011 | 2,154.6 | 43.8% | 7,135 |
| 2012 | 2,793.7 | 56.6% | 7,014 |
| 2013 | 3,773.7 | 76.6% | 6,975 |
| 2014 | 2,598.6 | 52.8% | 6,991 |
| 2015 | 3,002.4 | 61.0% | 7,001 |
| 2016 | 2,299.1 | 46.6% | 7,085 |
| 2017 | 2,517.1 | 51.1% | 7,120 |
| 2018 | 1,925.1 | 39.1% | 7,148 |
| 2019 | 1,182.8 | 24.0% | 7,204 |
| 2020 | 2,029.3 | 41.1% | 7,098 |
| 2021 | 1,835.5 | 36.0% | 7,049 |
| 2022 | 2,381.5 | 46.8% | 6,982 |
| 2023 | 1,279.4 | 25.1% | 7,013 |
| 2024 | 925.6 | 18.1% | 7,118 |
| 2025 | 1,469.6 | 28.9% | 7,043 |
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 |
|---|---|---|---|---|---|---|---|---|
| CTG1 | Natural Gas Fired Combined Cycle | CT | 165 | 179.6 | Oct 2005 | Operating | — | coming soon |
| CTG2 | Natural Gas Fired Combined Cycle | CT | 165 | 179.8 | Nov 2005 | Operating | — | coming soon |
| STG | Natural Gas Fired Combined Cycle | CA | 229 | 222 | Jan 2006 | Operating | — | coming soon |
Owner / operator
Operator: San Diego Gas & Electric Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| San Diego Gas & Electric Co | 100.0% | 559 MW |
Nearby plants
Within 80 km.
| Enterprise BESS | — | 0.2 km |
| CalPeak Power Enterprise Peaker Plant | 59 MW | 0.3 km |
| Escondido Energy Storage | 30 MW | 0.6 km |
| Escondido Energy Center | 54 MW | 0.7 km |
| Goal Line LP | 51 MW | 1.7 km |
| Lake Hodges Hydroelectric Facility | retired | 6.8 km |