TVA Southaven Combined Cycle
Desoto County, Mississippi · EIA plant ID 55269 · Operator: Tennessee Valley Authority
Nameplate904MWSummer 780 MW
Generators6in service
Net generation5,473GWh12 mo to Aug 2026
Capacity factor80%gas/coal/oil units, summer MW
Heat rate6,792Btu/kWhfossil units, electric fuel, HHV
First online2003Runs 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) |
|---|---|---|---|
| 2003 | 571.1 | 12.4% | 7,396 |
| 2004 | 664.2 | 9.7% | 7,105 |
| 2005 | 1,646.3 | 24.8% | 7,128 |
| 2006 | 1,643.3 | 24.7% | 7,197 |
| 2007 | 2,224.3 | 33.5% | 7,149 |
| 2008 | 1,866.4 | 27.4% | 7,330 |
| 2009 | 3,293.4 | 48.6% | 7,565 |
| 2010 | 4,130.4 | 60.9% | 7,245 |
| 2011 | 3,257.3 | 48.0% | 7,268 |
| 2012 | 4,334.9 | 63.3% | 7,220 |
| 2013 | 2,952.1 | 43.2% | 7,269 |
| 2014 | 2,197.9 | 32.2% | 7,295 |
| 2015 | 3,798.3 | 55.6% | 7,311 |
| 2016 | 4,909.8 | 71.7% | 7,193 |
| 2017 | 3,801 | 55.6% | 7,243 |
| 2018 | 4,013.1 | 58.7% | 7,169 |
| 2019 | 3,433.6 | 50.2% | 6,892 |
| 2020 | 4,709.4 | 68.7% | 6,880 |
| 2021 | 4,589.3 | 67.2% | 6,922 |
| 2022 | 4,672.6 | 68.4% | 6,927 |
| 2023 | 4,499.6 | 65.8% | 6,936 |
| 2024 | 4,619.1 | 67.4% | 6,906 |
| 2025 | 4,789.8 | 70.1% | 6,932 |
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 |
|---|---|---|---|---|---|---|---|---|
| CTG1 | Natural Gas Fired Combined Cycle | CT | 179.3 | 157 | May 2003 | Operating | — | coming soon |
| CTG2 | Natural Gas Fired Combined Cycle | CT | 179.3 | 157 | May 2003 | Operating | — | coming soon |
| CTG3 | Natural Gas Fired Combined Cycle | CT | 179.3 | 157 | May 2003 | Operating | — | coming soon |
| STG1 | Natural Gas Fired Combined Cycle | CA | 122 | 103 | May 2003 | Operating | — | coming soon |
| STG2 | Natural Gas Fired Combined Cycle | CA | 122 | 103 | May 2003 | Operating | — | coming soon |
| STG3 | Natural Gas Fired Combined Cycle | CA | 122 | 103 | May 2003 | Operating | — | coming soon |
Owner / operator
Operator: Tennessee Valley Authority. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Tennessee Valley Authority | 87.8% | 794 MW |
| Southaven Power LLC | 12.2% | 110 MW |
Nearby plants
Within 80 km.
| Allen | 1,290 MW | 13.5 km |
| Wildflower Solar, LLC (MS) | 100 MW | 13.8 km |
| Penton Solar Plant | — | 25.3 km |
| Arkabutla Lake Hydroelectric Project | — | 27.4 km |
| West Memphis Solar Station | 180 MW | 30.7 km |
| IKEA Memphis 508 | 1 MW | 30.8 km |