Stockton Biomass
San Joaquin County, California · EIA plant ID 54238 · Operator: DTE Stockton LLC
Nameplate54MWSummer 45 MW
Generators1in service
Net generation355GWh12 mo to Dec 2025
Capacity factor90%other units, summer MW
Heat rate8,405Btu/kWhfossil units, electric fuel, HHV
First online1987
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), other 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) |
|---|---|---|---|
| 2001 | 260 | — | 12,040 |
| 2002 | 324.5 | — | 11,770 |
| 2003 | 352.6 | — | 12,340 |
| 2004 | 323.1 | — | 11,566 |
| 2005 | 286.8 | — | 11,568 |
| 2006 | 258.7 | — | 11,568 |
| 2007 | 284.9 | — | 11,288 |
| 2008 | 267.7 | — | 12,602 |
| 2009 | 50.7 | — | 12,746 |
| 2013 | 0 | — | — |
| 2014 | 281.5 | 69.8% | 11,955 |
| 2015 | 337.4 | 85.3% | 11,931 |
| 2016 | 349.6 | 88.3% | 8,344 |
| 2017 | 277.9 | 70.2% | 8,288 |
| 2018 | 371.2 | 94.0% | 8,284 |
| 2019 | 375.6 | 93.0% | 8,264 |
| 2020 | 378.6 | 94.1% | 8,302 |
| 2021 | 372.4 | 91.7% | 8,330 |
| 2022 | 357.5 | 90.2% | 8,289 |
| 2023 | 326.3 | 82.4% | 8,341 |
| 2024 | 343.1 | 86.4% | 8,321 |
| 2025 | 355.5 | 89.8% | 8,405 |
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 |
|---|---|---|---|---|---|---|---|---|
| STG | Wood/Wood Waste Biomass | ST | 54 | 45 | Dec 1987 | Operating | — | coming soon |
Owner / operator
Operator: DTE Stockton LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| DTE Stockton LLC | 100.0% | 54 MW |
Nearby plants
Within 80 km.
| Regional Wastewater Control Facility | 8 MW | 0.8 km |
| University of the Pacific | 6 MW | 4.3 km |
| Stockton 9 - slcva209 | — | 8 km |
| Stockton 6 - SLEBA202 | 1 MW | 8.1 km |
| Cascade Energy Storage, LLC | 25 MW | 8.4 km |
| Niagara Bottling Stockton | 1 MW | 9 km |