Valero Refinery Cogeneration Unit 1
Natural gas power plant in Solano County, California. 49.9 MW of nameplate capacity across 1 generator, operated by Valero Refining Co California.
Also known as EIA plant 55851
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 49.9 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- October 2002First generator online
- Operator
- Valero Refining Co CaliforniaEIA operator ID 19676
- Grid
- CAISOBalancing authority CISO
- Price nodes
- None linkedNo verified ISO node
- Location
- Solano County, CA38.0736, −122.1411
- EIA plant ID
- 55851EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Valero Refinery Cogeneration Unit 1 produces
Free · EIA-923Net generation, 2025
276 GWh
276,174 MWh, final
Capacity factor, 2025
63.2%
2024: 34.3%
January to July 2026
10.7 GWh
Provisional. 4 of 7 months reported
Range, 2015 to 2025
150.5–365.9
GWh a year. Low 2024, high 2020
| 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 | 78,816 | Not reported | 12 of 12 |
| 2003 | 348,510 | Not reported | 12 of 12 |
| 2004 | 294,446 | Not reported | 12 of 12 |
| 2005 | 341,207 | Not reported | 12 of 12 |
| 2006 | 378,167 | Not reported | 12 of 12 |
| 2007 | 365,279 | Not reported | 12 of 12 |
| 2008 | 370,254 | Not reported | 12 of 12 |
| 2009 | 336,426 | Not reported | 12 of 12 |
| 2010 | 302,564 | 67.7% | 12 of 12 |
| 2011 | 327,013 | 73.2% | 12 of 12 |
| 2012 | 362,006 | 80.8% | 12 of 12 |
| 2013 | 347,490 | 77.8% | 12 of 12 |
| 2014 | 376,967 | 84.4% | 12 of 12 |
| 2015 | 350,056 | 78.4% | 12 of 12 |
| 2016 | 292,001 | 65.2% | 12 of 12 |
| 2017 | 304,071 | 68.1% | 12 of 12 |
| 2018 | 362,289 | 81.1% | 12 of 12 |
| 2019 | 339,249 | 75.9% | 12 of 12 |
| 2020 | 365,875 | Not reported | 12 of 12 |
| 2021 | 331,142 | 75.8% | 12 of 12 |
| 2022 | 316,045 | 72.3% | 12 of 12 |
| 2023 | 230,148 | 63.2% | 10 of 12 |
| 2024 | 150,521 | 34.3% | 12 of 12 |
| 2025 | 276,174 | 63.2% | 12 of 12 |
| 2026 (provisional, partial year) | 10,697 | 7.4% | 4 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 accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| GT 1 | Natural Gas Fired Combustion Turbine | 49.9 | October 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 Valero Refining Co California 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.
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Questions about Valero Refinery Cogeneration Unit 1
How much power does Valero Refinery Cogeneration Unit 1 produce?
Valero Refinery Cogeneration Unit 1 reported 276,174 MWh (276 GWh) of net generation in 2025, a 63.2% capacity factor on 49.9 MW of nameplate capacity. From January to July 2026 it reported 10.7 GWh, which is provisional.
Where is Valero Refinery Cogeneration Unit 1?
Valero Refinery Cogeneration Unit 1 is in Solano County, California, at 38.0736, −122.1411. It is in the California Independent System Operator balancing area (CISO).
Who operates Valero Refinery Cogeneration Unit 1?
EIA-860M for August 2026 lists Valero Refining Co California as the operator (EIA operator ID 19676). The operator is not always the owner.
When did Valero Refinery Cogeneration Unit 1 start operating?
Its first generator began operating in October 2002, according to EIA-860M.
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)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page