Delta Energy Center
Contra Costa County, California · EIA plant ID 55333 · Operator: Delta Energy Center LLC
Nameplate944MWSummer 842 MW
Generators4in service
Net generation3,402GWh12 mo to Aug 2026
Capacity factor46%gas/coal/oil units, summer MW
Heat rate7,175Btu/kWhfossil units, electric fuel, HHV
First online2002Runs as baseload
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) |
|---|---|---|---|
| 2002 | 2,760.6 | — | — |
| 2003 | 3,984.7 | 56.1% | 9,238 |
| 2004 | 5,614.7 | 78.8% | 7,327 |
| 2005 | 5,359.5 | 75.4% | 7,328 |
| 2006 | 4,834.3 | 68.0% | 7,401 |
| 2007 | 5,086.2 | 76.6% | 7,400 |
| 2008 | 4,825.9 | 71.4% | 7,361 |
| 2009 | 5,013.3 | 74.4% | 7,357 |
| 2010 | 3,995.8 | 59.3% | 7,437 |
| 2011 | 4,162.7 | 61.8% | 7,448 |
| 2012 | 5,704.7 | 84.4% | 7,415 |
| 2013 | 5,652.7 | 83.9% | 7,369 |
| 2014 | 5,187.1 | 77.0% | 7,463 |
| 2015 | 4,632.6 | 68.8% | 7,451 |
| 2016 | 3,421.6 | 50.6% | 7,487 |
| 2017 | 475.9 | 7.1% | 8,433 |
| 2018 | 3,081.7 | 45.7% | 7,407 |
| 2019 | 3,533.6 | 52.4% | 7,407 |
| 2020 | 3,860.2 | 57.1% | 7,385 |
| 2021 | 4,465.1 | 66.3% | 7,324 |
| 2022 | 3,970.4 | 53.7% | 7,326 |
| 2023 | 4,200.1 | 58.6% | 7,278 |
| 2024 | 3,099 | 41.9% | 7,191 |
| 2025 | 4,137.8 | 56.1% | 7,201 |
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 | 212 | 184 | May 2002 | Operating | — | coming soon |
| CTG2 | Natural Gas Fired Combined Cycle | CT | 212 | 183 | May 2002 | Operating | — | coming soon |
| CTG3 | Natural Gas Fired Combined Cycle | CT | 213.5 | 183 | May 2002 | Operating | — | coming soon |
| STG1 | Natural Gas Fired Combined Cycle | CA | 306 | 292 | May 2002 | Operating | — | coming soon |
Owner / operator
Operator: Delta Energy Center LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Delta Energy Center LLC | 100.0% | 944 MW |
Nearby plants
Within 80 km.
| Pittsburg RV Solar | — | 0.6 km |
| Columbia Solar Energy, LLC | 19 MW | 1.9 km |
| Los Medanos Energy Center | 678 MW | 2.9 km |
| Riverview Energy Center | 47 MW | 4.7 km |
| Diablo Energy Storage | 200 MW | 5.1 km |
| Marsh Landing Generating Station | 828 MW | 6.9 km |