Stockton Biomass
Wood biomass power plant in San Joaquin County, California. 54 MW of nameplate capacity across 1 generator, operated by DTE Stockton LLC.
Also known as DTE Stockton Biomass Power Plant · EIA plant 54238
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 54 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- December 1987First generator online
- Operator
- DTE Stockton LLCEIA operator ID 56652
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- San Joaquin County, CA37.9436, −121.3304
- EIA plant ID
- 54238EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Stockton Biomass produces
Free · EIA-923Net generation, 2025
355 GWh
355,474 MWh, final
Capacity factor, 2025
75.1%
2024: 72.3%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
277.9–378.6
GWh a year. Low 2017, high 2020
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 308,013 | Not reported | 12 of 12 |
| 2001 | 260,039 | Not reported | 12 of 12 |
| 2002 | 324,544 | Not reported | 12 of 12 |
| 2003 | 352,589 | Not reported | 12 of 12 |
| 2004 | 323,138 | Not reported | 12 of 12 |
| 2005 | 286,758 | Not reported | 12 of 12 |
| 2006 | 258,687 | Not reported | 12 of 12 |
| 2007 | 284,891 | Not reported | 12 of 12 |
| 2008 | 267,746 | Not reported | 12 of 12 |
| 2009 | 50,695 | Not reported | 12 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | 0 | Not reported | 12 of 12 |
| 2014 | 224,236 | 70.6% | 8 of 12 |
| 2015 | 337,436 | 71.3% | 12 of 12 |
| 2016 | 349,636 | 73.7% | 12 of 12 |
| 2017 | 277,873 | 58.7% | 12 of 12 |
| 2018 | 371,195 | 78.5% | 12 of 12 |
| 2019 | 375,552 | 79.4% | 12 of 12 |
| 2020 | 378,586 | 79.8% | 12 of 12 |
| 2021 | 372,410 | 78.7% | 12 of 12 |
| 2022 | 357,478 | 75.6% | 12 of 12 |
| 2023 | 326,252 | 69.0% | 12 of 12 |
| 2024 | 343,051 | 72.3% | 12 of 12 |
| 2025 | 355,474 | 75.1% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 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
556,045
US short tons. 2024: 510,662
SO₂, 2025
1
US short tons
NOx, 2025
112
US short tons
CO₂ per MWh, calculated
1.56 t
About 3,128 lb per MWh
1 of 1 EPA units reported CO₂ in 2025 (BIOMS1), matched to EIA plant 54238 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, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| STG | Wood/Wood Waste Biomass | 54.0 | December 1987 |
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 DTE Stockton 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.
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Questions about Stockton Biomass
How much power does Stockton Biomass produce?
Stockton Biomass reported 355,474 MWh (355 GWh) of net generation in 2025, a 75.1% capacity factor on 54 MW of nameplate capacity.
Where is Stockton Biomass?
Stockton Biomass is in San Joaquin County, California, at 37.9436, −121.3304. It is in the California Independent System Operator balancing area (CISO).
Who operates Stockton Biomass?
EIA-860M for August 2026 lists DTE Stockton LLC as the operator (EIA operator ID 56652). The operator is not always the owner.
When did Stockton Biomass start operating?
Its first generator began operating in December 1987, according to EIA-860M.
Does InfraMap have power prices for Stockton Biomass?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Stockton Biomass, 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
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page