Walnut Energy Center
Stanislaus County, California · EIA plant ID 56078 · Operator: Turlock Irrigation District
Nameplate301MWSummer 269 MW
Generators3in service
Net generation1,461GWh12 mo to Aug 2026
Capacity factor62%gas/coal/oil units, summer MW
Heat rate7,741Btu/kWhfossil units, electric fuel, HHV
First online2006Runs as baseload
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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) |
|---|---|---|---|
| 2006 | 954.5 | 44.3% | 8,038 |
| 2007 | 1,356.7 | 57.6% | 7,889 |
| 2008 | 1,577.7 | 66.8% | 7,822 |
| 2009 | 1,523.8 | 64.7% | 7,820 |
| 2010 | 1,536.7 | 65.2% | 7,778 |
| 2011 | 1,117.5 | 47.4% | 7,930 |
| 2012 | 1,464.5 | 62.0% | 7,848 |
| 2013 | 1,409.5 | 59.8% | 7,821 |
| 2014 | 1,468.7 | 62.3% | 7,796 |
| 2015 | 1,576.1 | 66.9% | 7,781 |
| 2016 | 1,205.6 | 51.0% | 7,830 |
| 2017 | 1,124.2 | 47.7% | 7,853 |
| 2018 | 1,229.7 | 52.2% | 7,844 |
| 2019 | 1,044.1 | 44.3% | 7,787 |
| 2020 | 1,252.6 | 53.0% | 7,822 |
| 2021 | 1,163.4 | 49.4% | 7,833 |
| 2022 | 1,467 | 62.3% | 7,750 |
| 2023 | 1,566.1 | 66.5% | 7,755 |
| 2024 | 1,525 | 64.5% | 7,737 |
| 2025 | 1,604.8 | 68.1% | 7,703 |
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 Combined Cycle | CT | 94.9 | 84 | Feb 2006 | Operating | — | coming soon |
| 2 | Natural Gas Fired Combined Cycle | CT | 94.9 | 84 | Feb 2006 | Operating | — | coming soon |
| 3 | Natural Gas Fired Combined Cycle | CA | 110.8 | 101 | Feb 2006 | 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% | 301 MW |
Nearby plants
Within 80 km.
| Walnut | 50 MW | 0.8 km |
| Almond Power Plant | 224 MW | 12.4 km |
| McClure | 142 MW | 16.1 km |
| Hickman | 1 MW | 19.9 km |
| West Tambo Clean Power II | 2 MW | 21 km |
| Woodland | 199 MW | 21.4 km |