Edward L. Addison Generating Plant
Upson County, Georgia · EIA plant ID 55267 · Operator: Southern Power Co
Nameplate701MWSummer 592 MW
Generators4in service
Net generation312GWh12 mo to Dec 2025
Capacity factor6%gas/coal/oil units, summer MW
Heat rate11,257Btu/kWhfossil units, electric fuel, HHV
First online2000Runs 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 | 434.9 | 8.3% | 11,087 |
| 2002 | 449.9 | 8.4% | 10,815 |
| 2003 | 50.9 | 0.9% | 10,480 |
| 2004 | 5.5 | 0.1% | 11,114 |
| 2005 | 91.7 | 1.7% | 10,977 |
| 2006 | 155 | 2.9% | 10,814 |
| 2007 | 287.1 | 5.4% | 10,832 |
| 2008 | 92.1 | 1.7% | 11,367 |
| 2009 | 13.2 | 0.3% | 10,834 |
| 2010 | 53.6 | 1.0% | 12,013 |
| 2011 | 67.4 | 1.3% | 11,579 |
| 2012 | 389.8 | 7.4% | 10,941 |
| 2013 | 153.4 | 2.9% | 10,964 |
| 2014 | 531.6 | 10.1% | 11,011 |
| 2015 | 394.3 | 7.6% | 11,059 |
| 2016 | 403.6 | 7.7% | 11,185 |
| 2017 | 290.2 | 5.6% | 11,223 |
| 2018 | 346.8 | 6.7% | 11,156 |
| 2019 | 369.7 | 7.1% | 11,191 |
| 2020 | 348.6 | 6.7% | 11,153 |
| 2021 | 260.9 | 5.0% | 11,386 |
| 2022 | 370.4 | 7.1% | 10,892 |
| 2023 | 200.2 | 3.9% | 10,938 |
| 2024 | 241.9 | 4.7% | 11,100 |
| 2025 | 312.4 | 6.0% | 11,257 |
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 mo148,833 MMBtu
Last month with liquid burnDec 2025
Switch while operatingYes
Net summer MW on gas592
Net summer MW on oil592
Time gas → oilup to 6 h (EIA 6H)
Time oil → gasup to 6 h (EIA 6H)
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 |
|---|---|---|---|---|---|---|---|---|
| 712 | Natural Gas Fired Combustion Turbine | GT | 175.3 | 148.5 | Jun 2000 | Operating | — | coming soon |
| 713 | Natural Gas Fired Combustion Turbine | GT | 175.3 | 149 | Jun 2000 | Operating | — | coming soon |
| 714 | Natural Gas Fired Combustion Turbine | GT | 175.3 | 148.5 | Jun 2000 | Operating | — | coming soon |
| 715 | Natural Gas Fired Combustion Turbine | GT | 175.3 | 145.9 | Jun 2000 | Operating | — | coming soon |
Owner / operator
Operator: Southern Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Southern Power Co | 100.0% | 701 MW |
Nearby plants
Within 80 km.
| Upson County GA S1 LLC | 3 MW | 3.2 km |
| Upson Rocky Creek Solar Plant | 1 MW | 3.6 km |
| Piedmont Green Power | 60 MW | 22.5 km |
| Camp Solar Plant | 2 MW | 23 km |
| Meriwether Jackson | 3 MW | 31.8 km |
| Mossy Branch Battery Facility | 65 MW | 35.2 km |