Pastoria Energy Facility, LLC
Kern County, California · EIA plant ID 55656 · Operator: Calpine Corp - Pastoria Energy Center
Nameplate779MWSummer 757 MW
Generators5in service
Net generation3,251GWh12 mo to Aug 2026
Capacity factor49%gas/coal/oil units, summer MW
Heat rate7,113Btu/kWhfossil units, electric fuel, HHV
First online2005Runs 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) |
|---|---|---|---|
| 2005 | 2,514.2 | 70.8% | 7,384 |
| 2006 | 4,649.2 | 73.3% | 7,177 |
| 2007 | 4,843.6 | 76.4% | 7,274 |
| 2008 | 4,914.8 | 77.3% | 6,972 |
| 2009 | 4,979.7 | 78.5% | 6,952 |
| 2010 | 4,336.3 | 68.4% | 7,029 |
| 2011 | 2,910.2 | 45.9% | 7,229 |
| 2012 | 4,384.4 | 68.9% | 7,039 |
| 2013 | 4,992.7 | 78.7% | 7,065 |
| 2014 | 5,097.3 | 80.4% | 7,042 |
| 2015 | 4,784.7 | 75.4% | 7,010 |
| 2016 | 4,365.7 | 65.0% | 7,103 |
| 2017 | 3,875.8 | 57.8% | 7,097 |
| 2018 | 4,325.9 | 64.5% | 7,118 |
| 2019 | 4,060.8 | 59.4% | 7,047 |
| 2020 | 4,341.2 | 63.4% | 7,079 |
| 2021 | 4,259.2 | 62.3% | 7,079 |
| 2022 | 3,294.3 | 48.2% | 7,036 |
| 2023 | 4,337.3 | 63.3% | 7,036 |
| 2024 | 4,007.1 | 60.3% | 7,039 |
| 2025 | 3,620.5 | 54.6% | 7,077 |
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 |
|---|---|---|---|---|---|---|---|---|
| CT01 | Natural Gas Fired Combined Cycle | CT | 168 | 172 | Jul 2005 | Operating | — | coming soon |
| CT02 | Natural Gas Fired Combined Cycle | CT | 168 | 172 | Jul 2005 | Operating | — | coming soon |
| CT04 | Natural Gas Fired Combined Cycle | CT | 168 | 165 | May 2005 | Operating | — | coming soon |
| ST03 | Natural Gas Fired Combined Cycle | CA | 185 | 165 | Jul 2005 | Operating | — | coming soon |
| ST05 | Natural Gas Fired Combined Cycle | CA | 90 | 83 | May 2005 | Operating | — | coming soon |
Owner / operator
Operator: Calpine Corp - Pastoria Energy Center. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Calpine Corp - Pastoria Energy Center | 100.0% | 779 MW |
Nearby plants
Within 80 km.
| Pastoria Power Bank | 80 MW | 1.1 km |
| Pastoria Solar | 105 MW | 1.8 km |
| Wheeler Ridge 2 | 5 MW | 6.7 km |
| Blue Skies Solar, LLC | 1 MW | 6.9 km |
| Tejon Castac Water District Solar | 1 MW | 7.1 km |
| IKEA Tejon 345 | 2 MW | 9.6 km |