Magnolia Power Plant
Benton County, Mississippi · EIA plant ID 55451 · Operator: Tennessee Valley Authority
Nameplate1,004MWSummer 918 MW
Generators6in service
Net generation6,314GWh12 mo to Aug 2026
Capacity factor79%gas/coal/oil units, summer MW
Heat rate6,929Btu/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 | 84.9 | 2.7% | 7,327 |
| 2004 | 475.8 | 6.3% | 7,528 |
| 2005 | 1,455.8 | 19.3% | 7,290 |
| 2006 | 1,189.8 | 15.7% | 7,102 |
| 2007 | 2,299.6 | 30.4% | 7,254 |
| 2008 | 1,041.5 | 13.7% | 7,495 |
| 2009 | 1,017.4 | 13.5% | 8,081 |
| 2010 | 1,641.2 | 21.7% | 7,336 |
| 2011 | 2,686.2 | 35.5% | 7,277 |
| 2012 | 4,579.2 | 56.8% | 7,252 |
| 2013 | 4,418.2 | 54.9% | 7,243 |
| 2014 | 4,079.1 | 50.7% | 7,244 |
| 2015 | 4,945.1 | 61.5% | 7,362 |
| 2016 | 5,731.8 | 71.1% | 7,248 |
| 2017 | 5,144.8 | 64.0% | 7,179 |
| 2018 | 5,554.7 | 69.1% | 7,016 |
| 2019 | 3,768.4 | 46.9% | 6,995 |
| 2020 | 5,310.3 | 65.8% | 6,958 |
| 2021 | 4,180.9 | 52.0% | 6,897 |
| 2022 | 5,051.7 | 62.8% | 6,998 |
| 2023 | 5,808 | 72.2% | 6,915 |
| 2024 | 6,704.6 | 83.1% | 7,040 |
| 2025 | 6,662.3 | 82.8% | 6,961 |
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 | 178.5 | 156 | Aug 2003 | Operating | — | coming soon |
| CTG2 | Natural Gas Fired Combined Cycle | CT | 178.5 | 156 | Aug 2003 | Operating | — | coming soon |
| CTG3 | Natural Gas Fired Combined Cycle | CT | 178.5 | 156 | Aug 2003 | Operating | — | coming soon |
| STG1 | Natural Gas Fired Combined Cycle | CA | 156 | 150 | Aug 2003 | Operating | — | coming soon |
| STG2 | Natural Gas Fired Combined Cycle | CA | 156 | 150 | Aug 2003 | Operating | — | coming soon |
| STG3 | Natural Gas Fired Combined Cycle | CA | 156 | 150 | Aug 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 | 100.0% | 1,004 MW |
Nearby plants
Within 80 km.
| Wildberry | 15 MW | 29.1 km |
| SR Mount Pleasant | — | 37 km |
| SR Marshall, LLC | — | 37.8 km |
| Sr Byhalia, LLC | 5 MW | 42.4 km |
| Somerville Solar | 2 MW | 45.4 km |
| SR Canadaville, LLC | 16 MW | 46.6 km |