Magnolia Power Plant
Natural gas power plant in Benton County, Mississippi. 1,003.5 MW of nameplate capacity across 6 generators, operated by Tennessee Valley Authority.
Also known as EIA plant 55451
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 1,003.5 MWNameplate
- Generators
- 6 operatingEIA-860M, August 2026
- Operating since
- August 2003First generator online
- Operator
- Tennessee Valley AuthorityEIA operator ID 18642
- Grid
- TVABalancing authority TVA
- Price nodes
- None linkedNo verified ISO node
- Location
- Benton County, MS34.8350, −89.2026
- EIA plant ID
- 55451EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Magnolia produces
Free · EIA-923Net generation, 2025
6.66 TWh
6,662,322 MWh, final
Capacity factor, 2025
75.8%
2024: 76.1%
January to July 2026
3.62 TWh
Provisional
Range, 2015 to 2025
3.8–6.7
TWh a year. Low 2019, high 2024
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | 84,858 | Not reported | 6 of 12 |
| 2004 | 475,826 | Not reported | 12 of 12 |
| 2005 | 1,455,846 | Not reported | 12 of 12 |
| 2006 | 1,189,838 | Not reported | 12 of 12 |
| 2007 | 2,299,564 | Not reported | 12 of 12 |
| 2008 | 1,041,520 | Not reported | 12 of 12 |
| 2009 | 1,017,378 | Not reported | 12 of 12 |
| 2010 | 12,099 | 1.7% | 1 of 12 |
| 2011 | 0 | 0.0% | 1 of 12 |
| 2012 | 4,579,191 | 51.9% | 12 of 12 |
| 2013 | 4,418,171 | Not reported | 12 of 12 |
| 2014 | 4,079,143 | 46.4% | 12 of 12 |
| 2015 | 4,945,105 | 56.3% | 12 of 12 |
| 2016 | 5,731,838 | 65.0% | 12 of 12 |
| 2017 | 5,144,767 | 58.5% | 12 of 12 |
| 2018 | 5,554,670 | 63.2% | 12 of 12 |
| 2019 | 3,768,367 | 42.9% | 12 of 12 |
| 2020 | 5,310,254 | 60.2% | 12 of 12 |
| 2021 | 4,180,909 | 47.6% | 12 of 12 |
| 2022 | 5,051,650 | 57.5% | 12 of 12 |
| 2023 | 5,807,970 | 66.1% | 12 of 12 |
| 2024 | 6,704,562 | 76.1% | 12 of 12 |
| 2025 | 6,662,322 | 75.8% | 12 of 12 |
| 2026 (provisional, partial year) | 3,618,692 | 70.9% | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDCO₂, 2025
2.99M
US short tons. 2024: 3.00M
SO₂, 2025
15
US short tons
NOx, 2025
277
US short tons
CO₂ per MWh, calculated
0.45 t
About 896 lb per MWh
3 of 3 EPA units reported CO₂ in 2025 (CTG-1, CTG-2, CTG-3), matched to EIA plant 55451 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
2,008
million gallons
Consumption, 2024
1,728
million gallons
Source
Wells
Ground, Fresh. Induced-draft tower
Watershed stress
Low · 0.254
USGS SUI, HUC12 Little Snow Creek-Snow Creek
12 of 12 cooling months report withdrawal. Groundwater user; SUI describes surface water and is context only. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| CTG1 | Natural Gas Fired Combined Cycle | 178.5 | August 2003 |
| CTG2 | Natural Gas Fired Combined Cycle | 178.5 | August 2003 |
| CTG3 | Natural Gas Fired Combined Cycle | 178.5 | August 2003 |
| STG1 | Natural Gas Fired Combined Cycle | 156.0 | August 2003 |
| STG2 | Natural Gas Fired Combined Cycle | 156.0 | August 2003 |
| STG3 | Natural Gas Fired Combined Cycle | 156.0 | August 2003 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Tennessee Valley Authority as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
300 analyst questions a month, plus MCP
Query Magnolia Power Plant and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near Magnolia
More plants operated by Tennessee Valley Authority
Questions about Magnolia
How much power does Magnolia Power Plant produce?
Magnolia Power Plant reported 6,662,322 MWh (6.66 TWh) of net generation in 2025, a 75.8% capacity factor on 1,003.5 MW of nameplate capacity. From January to July 2026 it reported 3.62 TWh, which is provisional.
Where is Magnolia Power Plant?
Magnolia Power Plant is in Benton County, Mississippi, at 34.8350, −89.2026. It is in the Tennessee Valley Authority balancing area (TVA).
Who operates Magnolia Power Plant?
EIA-860M for August 2026 lists Tennessee Valley Authority as the operator (EIA operator ID 18642). The operator is not always the owner.
When did Magnolia Power Plant start operating?
Its first generator began operating in August 2003, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page