Delta Energy Center
Natural gas power plant in Contra Costa County, California. 943.5 MW of nameplate capacity across 4 generators, operated by Delta Energy Center LLC.
Also known as EIA plant 55333
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 943.5 MWNameplate
- Generators
- 4 operatingEIA-860M, August 2026
- Operating since
- May 2002First generator online
- Operator
- Delta Energy Center LLCEIA operator ID 5030
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- Contra Costa County, CA38.0169, −121.8439
- EIA plant ID
- 55333EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Delta produces
Free · EIA-923Net generation, 2025
4.14 TWh
4,137,805 MWh, final
Capacity factor, 2025
50.1%
2024: Not reported
January to July 2026
1.06 TWh
Provisional
Range, 2015 to 2025
0.5–4.6
TWh a year. Low 2017, high 2015
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | 2,760,581 | Not reported | 7 of 12 |
| 2003 | 3,984,732 | Not reported | 12 of 12 |
| 2004 | 5,614,657 | Not reported | 12 of 12 |
| 2005 | 5,359,470 | Not reported | 12 of 12 |
| 2006 | 4,834,349 | Not reported | 12 of 12 |
| 2007 | 5,086,194 | Not reported | 12 of 12 |
| 2008 | 4,825,914 | Not reported | 12 of 12 |
| 2009 | 5,013,277 | Not reported | 12 of 12 |
| 2010 | 3,995,756 | 48.3% | 12 of 12 |
| 2011 | 4,162,660 | 50.4% | 12 of 12 |
| 2012 | 5,704,657 | 68.8% | 12 of 12 |
| 2013 | 5,652,674 | Not reported | 12 of 12 |
| 2014 | 5,187,071 | 62.8% | 12 of 12 |
| 2015 | 4,632,641 | 56.1% | 12 of 12 |
| 2016 | 3,421,553 | 41.3% | 12 of 12 |
| 2017 | 475,892 | 5.8% | 12 of 12 |
| 2018 | 3,081,664 | 37.3% | 12 of 12 |
| 2019 | 3,533,557 | 42.8% | 12 of 12 |
| 2020 | 3,860,213 | 46.6% | 12 of 12 |
| 2021 | 4,465,081 | 54.0% | 12 of 12 |
| 2022 | 3,970,444 | 48.0% | 12 of 12 |
| 2023 | 4,200,083 | 50.8% | 12 of 12 |
| 2024 | 3,099,000 | Not reported | 12 of 12 |
| 2025 | 4,137,805 | 50.1% | 12 of 12 |
| 2026 (provisional, partial year) | 1,060,312 | 22.1% | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · CAISOEmissions
Free · EPA CAMPDCO₂, 2025
1.77M
US short tons. 2024: 1.32M
SO₂, 2025
9
US short tons
NOx, 2025
134
US short tons
CO₂ per MWh, calculated
0.43 t
About 854 lb per MWh
3 of 3 EPA units reported CO₂ in 2025 (1, 2, 3), matched to EIA plant 55333 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
924
million gallons
Consumption, 2024
683
million gallons
Source
Delta Diablo Sanitation Dist
Discharge, Reclaimed. Induced-draft tower
Watershed stress
High · 0.605
USGS SUI, HUC12 Kirker Creek-Frontal Suisun Bay Estuaries
12 of 12 cooling months report withdrawal. Reclaimed water or plant effluent; not tested. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| CTG1 | Natural Gas Fired Combined Cycle | 212.0 | May 2002 |
| CTG2 | Natural Gas Fired Combined Cycle | 212.0 | May 2002 |
| CTG3 | Natural Gas Fired Combined Cycle | 213.5 | May 2002 |
| STG1 | Natural Gas Fired Combined Cycle | 306.0 | May 2002 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Delta Energy Center LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
300 analyst questions a month, plus MCP
Query Delta Energy Center and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near Delta
Questions about Delta
How much power does Delta Energy Center produce?
Delta Energy Center reported 4,137,805 MWh (4.14 TWh) of net generation in 2025, a 50.1% capacity factor on 943.5 MW of nameplate capacity. From January to July 2026 it reported 1.06 TWh, which is provisional.
Where is Delta Energy Center?
Delta Energy Center is in Contra Costa County, California, at 38.0169, −121.8439. It is in the California Independent System Operator balancing area (CISO).
Who operates Delta Energy Center?
EIA-860M for August 2026 lists Delta Energy Center LLC as the operator (EIA operator ID 5030). The operator is not always the owner.
When did Delta Energy Center start operating?
Its first generator began operating in May 2002, according to EIA-860M.
Does InfraMap have power prices for Delta Energy Center?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Delta Energy Center, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- CAISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page