Panoche Peaker
Fresno County, California · EIA plant ID 55874 · Operator: Wellhead Services Inc
Nameplate57MWSummer 57 MW
Generators1in service
Net generation7GWh12 mo to Dec 2025
Capacity factor1%gas/coal/oil units, summer MW
Heat rate14,381Btu/kWhfossil units, electric fuel, HHV
First online1973Runs 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) |
|---|---|---|---|
| 2002 | 11.1 | 3.2% | 13,865 |
| 2003 | 4 | 1.1% | 14,583 |
| 2004 | 2 | 0.6% | 14,875 |
| 2005 | 4 | 1.1% | 15,233 |
| 2006 | 7.7 | 2.2% | 14,246 |
| 2007 | 9.1 | 2.6% | — |
| 2008 | 2.7 | 0.8% | 14,219 |
| 2009 | 4.8 | 1.4% | 9,784 |
| 2010 | 2.7 | 0.8% | 11,515 |
| 2011 | 3.9 | 1.1% | 15,568 |
| 2012 | 3.3 | 0.9% | 15,626 |
| 2013 | 4.2 | 1.2% | 16,059 |
| 2014 | 4.5 | 1.3% | 15,206 |
| 2015 | 9.9 | 2.8% | 15,822 |
| 2016 | 8.1 | 2.3% | 16,038 |
| 2017 | 13.2 | 3.8% | 15,823 |
| 2018 | 11.3 | 3.2% | 16,219 |
| 2019 | 2.3 | 0.7% | 15,844 |
| 2020 | 3.8 | 0.8% | 15,372 |
| 2021 | 3.2 | 0.7% | 15,254 |
| 2022 | 2.2 | 0.4% | 15,223 |
| 2023 | 1.6 | 0.3% | 15,817 |
| 2024 | 3.3 | 0.7% | 15,573 |
| 2025 | 6.8 | 1.4% | 14,381 |
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 |
|---|---|---|---|---|---|---|---|---|
| 8 | Natural Gas Fired Combustion Turbine | GT | 56.7 | 56.7 | Aug 1973 | Operating | — | coming soon |
Owner / operator
Operator: Wellhead Services Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Fresno Power Investors LP | 75.0% | 43 MW |
| Wellhead Services, Inc. | 25.0% | 14 MW |
Nearby plants
Within 80 km.
| Iron BESS | — | 0.1 km |
| Midway BESS | — | 0.1 km |
| Midway Peaking LLC | 140 MW | 0.1 km |
| CalPeak Power Panoche Peaker Plant | 61 MW | 0.2 km |
| Panoche Energy Center | 432 MW | 0.5 km |
| Conflitti Solar | 4 MW | 2.9 km |