Lost Hills Cogeneration Plant
Kern County, California · EIA plant ID 52077 · Operator: AERA Energy LLC
×4 MW natural gas retired since 2020 (latest Apr 2021)
Nameplate7MWSummer 5 MW
Generators2in service
Net generation8GWh12 mo to Dec 2025
Capacity factor16%gas/coal/oil units, summer MW
Heat rate8,139Btu/kWhfossil units, electric fuel, HHV
First online1985Runs as peaking
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 | 18.8 | 26.5% | 6,846 |
| 2002 | 36.8 | 51.9% | 5,221 |
| 2003 | 51.3 | 72.3% | 4,737 |
| 2004 | 56.3 | 79.1% | 4,480 |
| 2005 | 58.1 | 81.9% | 4,480 |
| 2006 | 52.3 | 73.8% | 4,480 |
| 2007 | 58.5 | 82.5% | 4,480 |
| 2008 | 64 | 89.9% | 4,503 |
| 2009 | 56.8 | 80.1% | 4,503 |
| 2010 | 49.1 | 69.2% | 4,503 |
| 2011 | 36.5 | 51.5% | 4,503 |
| 2012 | 35.7 | 50.2% | 4,480 |
| 2013 | 32.5 | 45.9% | 4,503 |
| 2014 | 43.9 | 61.9% | 4,503 |
| 2015 | 37.5 | 52.8% | 4,503 |
| 2016 | 36.5 | 51.4% | 8,138 |
| 2017 | 38.7 | 54.5% | 8,138 |
| 2018 | 37 | 52.1% | 8,138 |
| 2019 | 43.6 | 61.5% | 8,138 |
| 2020 | 42.4 | 59.6% | 8,138 |
| 2021 | 5.3 | 10.0% | 8,138 |
| 2022 | 2.6 | 5.5% | 8,138 |
| 2023 | 2.6 | 5.5% | 8,138 |
| 2024 | 9.2 | 19.4% | 8,138 |
| 2025 | 7.5 | 15.9% | 8,139 |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN5 | Natural Gas Fired Combustion Turbine | GT | 3.5 | 2.7 | Oct 1985 | Operating | — | coming soon |
| GEN6 | Natural Gas Fired Combustion Turbine | GT | 3.5 | 2.7 | Oct 1985 | Operating | — | coming soon |
| GEN4 | Natural Gas Fired Combustion Turbine | GT | 3.5 | 2.7 | Oct 1985 | Retired Apr 2021 | — | coming soon |
Owner / operator
Operator: AERA Energy LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| AERA Energy LLC | 100.0% | 7 MW |
Nearby plants
Within 80 km.
| Nickel 1 Solar Facility | 2 MW | 5 km |
| AEDG CA I, LLC | 2 MW | 5.2 km |
| Wonderful Orchards - Westside | 5 MW | 7.7 km |
| Lost Hills Oilfield | 2 MW | 7.7 km |
| Blackwell?s Corner Storage Facility | 2 MW | 8.5 km |
| Morelos del Sol | 15 MW | 8.6 km |