Walnut
Stanislaus County, California · EIA plant ID 4256 · Operator: Turlock Irrigation District
Nameplate50MWSummer 47 MW
Generators2in service
Net generation-0GWh12 mo to Dec 2025
Capacity factor-0%!gas/coal/oil units, summer MW
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online1986Runs as rarely runs
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) |
|---|---|---|---|
| 2001 | 23 | 5.6% | 17,124 |
| 2002 | 1.4 | 0.3% | 20,683 |
| 2003 | 1.4 | 0.4% | 10,224 |
| 2004 | 0.8 | 0.2% | — |
| 2005 | 2.3 | 0.6% | 22,166 |
| 2006 | 2.2 | 0.5% | 23,807 |
| 2007 | 0.3 | 0.1% | — |
| 2008 | 0.9 | 0.2% | 19,061 |
| 2009 | 0.6 | 0.1% | 6,581 |
| 2010 | 0 | 0.0% | — |
| 2011 | 0.2 | 0.1% | — |
| 2012 | 0.4 | 0.1% | — |
| 2013 | -0.1 | -0.0% | — |
| 2014 | 0.6 | 0.1% | 28,741 |
| 2015 | -0.2 | -0.1% | — |
| 2016 | -0.2 | -0.0% | — |
| 2017 | 0.3 | 0.1% | — |
| 2018 | 0 | 0.0% | — |
| 2019 | -0.3 | -0.1% | — |
| 2020 | -0 | -0.0% | — |
| 2021 | 0.3 | 0.1% | — |
| 2022 | -0.1 | -0.0% | — |
| 2023 | -0 | 0.0% | — |
| 2024 | 0.4 | 0.1% | — |
| 2025 | -0.2 | -0.1% | — |
Fuel capability
Gas-fired turbines (CT/GT/CA/CS) that can also burn liquid fuel. EIA-860 Schedule 3 for capability, EIA-923 for actual burn.
StatusLikely still dual fuel
Liquid fuel burned · 36 mo8,402 MMBtu
Last month with liquid burnDec 2025
Switch while operatingYes
Net summer MW on gas47
Net summer MW on oil47
Time gas → oilup to 1 h (EIA 1H)
Time oil → gasup to 1 h (EIA 1H)
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Natural Gas Fired Combustion Turbine | GT | 24.9 | 23.5 | Apr 1986 | Operating | — | coming soon |
| 2 | Natural Gas Fired Combustion Turbine | GT | 24.9 | 23.5 | Apr 1986 | Operating | — | coming soon |
Owner / operator
Operator: Turlock Irrigation District. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Turlock Irrigation District | 100.0% | 50 MW |
Nearby plants
Within 80 km.
| Walnut Energy Center | 301 MW | 0.8 km |
| Almond Power Plant | 224 MW | 11.7 km |
| McClure | 142 MW | 15.6 km |
| Hickman | 1 MW | 20.2 km |
| Woodland | 199 MW | 20.7 km |
| Enchanted Rock Turlock Irrigation Distri | 47 MW | 20.9 km |