Midway Sunset Cogen
Kern County, California · EIA plant ID 52169 · Operator: Midway-Sunset Cogeneration Co
Nameplate234MWSummer 219 MW
Generators3in service
Net generation11GWh12 mo to Aug 2026
Capacity factor1%gas/coal/oil units, summer MW
Heat rate4,302Btu/kWhfossil units, electric fuel, HHV
First online1989Runs as peaking
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) |
|---|---|---|---|
| 2001 | 1,881.7 | 98.1% | 5,758 |
| 2002 | 1,952 | 101.8% | 5,543 |
| 2003 | 1,936.6 | 101.0% | 5,325 |
| 2004 | 1,934.2 | 100.6% | 4,746 |
| 2005 | 1,849.4 | 96.4% | 4,746 |
| 2006 | 1,931.9 | 100.7% | 4,746 |
| 2007 | 1,867.3 | 97.3% | 4,746 |
| 2008 | 1,933.3 | 100.5% | 4,762 |
| 2009 | 1,908.8 | 99.5% | 4,759 |
| 2010 | 1,812.4 | 94.5% | 4,761 |
| 2011 | 1,384.5 | 72.2% | 4,756 |
| 2012 | 1,373.4 | 71.4% | 4,748 |
| 2013 | 1,341.2 | 69.9% | 4,756 |
| 2014 | 1,174.1 | 61.2% | 4,748 |
| 2015 | 1,049.5 | 54.7% | 4,724 |
| 2016 | 910.7 | 47.3% | 4,329 |
| 2017 | 826.5 | 43.1% | 4,344 |
| 2018 | 850.1 | 44.3% | 4,356 |
| 2019 | 806.4 | 42.0% | 4,356 |
| 2020 | 605.5 | 31.5% | 4,365 |
| 2021 | 41.4 | 2.2% | 4,309 |
| 2022 | 58.5 | 3.0% | 4,325 |
| 2023 | 160.7 | 8.4% | 4,331 |
| 2024 | 264 | 13.7% | 4,319 |
| 2025 | 47.3 | 2.5% | 4,336 |
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 |
|---|---|---|---|---|---|---|---|---|
| A | Natural Gas Fired Combustion Turbine | GT | 78 | 73 | May 1989 | Operating | — | coming soon |
| B | Natural Gas Fired Combustion Turbine | GT | 78 | 73 | May 1989 | Operating | — | coming soon |
| C | Natural Gas Fired Combustion Turbine | GT | 78 | 73 | May 1989 | Operating | — | coming soon |
Owner / operator
Operator: Midway-Sunset Cogeneration Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| San Joaquin Energy Co | 50.0% | 117 MW |
| AERA Energy LLC | 50.0% | 117 MW |
Nearby plants
Within 80 km.
| Dome Project | 6 MW | 4.3 km |
| Sunrise Power LLC | 685 MW | 4.5 km |
| North Midway Cogen | 11 MW | 6.1 km |
| Mid-Set Cogeneration | 39 MW | 6.4 km |
| La Paloma Generating LLC | 1,156 MW | 8.4 km |
| Pumpjack Solar I | 20 MW | 8.8 km |