Mid-Georgia Cogeneration Facility
Houston County, Georgia · EIA plant ID 55040 · Operator: SEPG Operating Services, LLC MGC
Nameplate323MWSummer 303 MW
Generators3in service
Net generation177GWh12 mo to Aug 2026
Capacity factor7%gas/coal/oil units, summer MW
Heat rate6,588Btu/kWhfossil units, electric fuel, HHV
First online1997Runs 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 | 386.1 | — | — |
| 2002 | 388.4 | — | — |
| 2003 | 207.2 | 7.5% | 7,072 |
| 2004 | 32.5 | 1.2% | 6,837 |
| 2005 | 140.8 | 5.1% | 6,837 |
| 2006 | 177.9 | 6.4% | 6,837 |
| 2007 | 274.3 | 9.9% | 6,837 |
| 2008 | 113.6 | 4.1% | 6,811 |
| 2009 | 25.3 | 0.9% | 6,808 |
| 2010 | 178 | 6.4% | 6,809 |
| 2011 | 260.8 | 9.4% | 6,819 |
| 2012 | 380.3 | 13.7% | 6,824 |
| 2013 | 73.4 | 2.8% | 6,818 |
| 2014 | 197 | 7.4% | 6,815 |
| 2015 | 241.8 | 9.1% | 6,850 |
| 2016 | 481.6 | 18.1% | 6,615 |
| 2017 | 144.9 | 5.5% | 6,609 |
| 2018 | 211.3 | 8.0% | 6,574 |
| 2019 | 230 | 8.7% | 6,586 |
| 2020 | 138.8 | 5.2% | 6,565 |
| 2021 | 165.4 | 6.2% | 6,603 |
| 2022 | 461.9 | 17.4% | 6,561 |
| 2023 | 146.5 | 5.5% | 6,592 |
| 2024 | 116.2 | 4.4% | 6,595 |
| 2025 | 179.2 | 6.8% | 6,593 |
Fuel capability
Gas-fired turbines (CT/GT/CA/CS) that can also burn liquid fuel. EIA-860 Schedule 3 for capability, EIA-923 for actual burn.
StatusLikely still dual fuel
Liquid fuel burned · 36 mo195,538 MMBtu
Last month with liquid burnFeb 2026
Switch while operatingYes
Net summer MW on gas203
Net summer MW on oil203
Time gas → oilup to 1 h (EIA 1H)
Time oil → gasup to 1 h (EIA 1H)
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 |
|---|---|---|---|---|---|---|---|---|
| CT1 | Natural Gas Fired Combined Cycle | CT | 106.5 | 101.5 | Oct 1997 | Operating | — | coming soon |
| CT2 | Natural Gas Fired Combined Cycle | CT | 106.5 | 101.5 | Feb 1998 | Operating | — | coming soon |
| ST1 | Natural Gas Fired Combined Cycle | CA | 110 | 100 | Dec 1997 | Operating | — | coming soon |
Owner / operator
Operator: SEPG Operating Services, LLC MGC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Mid-Georgia Cogen, LP | 100.0% | 323 MW |
Nearby plants
Within 80 km.
| CG PS Portfolio 1, LLC | 2 MW | 10.2 km |
| Robins | 184 MW | 10.6 km |
| Twiggs Solar | 204 MW | 17 km |
| SR Perry | 68 MW | 17.9 km |
| Robins Air Force Base Solar | 256 MW | 21.8 km |
| Coody Cochran | 3 MW | 25.3 km |