Grand Gulf
Nuclear power plant in Claiborne County, Mississippi. 1,440 MW of nameplate capacity across 1 generator, operated by System Energy Resources, Inc.
Also known as Grand Gulf Nuclear Generating Station · EIA plant 6072
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 1,440 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- July 1985First generator online
- Operator
- System Energy Resources, IncEIA operator ID 12465
- Grid
- MISOBalancing authority MISO
- Price nodes
- 4 MISO nodesResource nodes with prices
- Location
- Claiborne County, MS32.0081, −91.0478
- EIA plant ID
- 6072EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Grand Gulf produces
Free · EIA-923Net generation, 2025
11.8 TWh
11,807,221 MWh, final
Capacity factor, 2025
93.6%
2024: 84.2%
January to July 2026
5.36 TWh
Provisional
Range, 2015 to 2025
5.9–11.8
TWh a year. Low 2016, high 2025
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 10,694,555 | Not reported | 12 of 12 |
| 2001 | 9,923,882 | Not reported | 12 of 12 |
| 2002 | 10,059,459 | Not reported | 12 of 12 |
| 2003 | 10,902,456 | Not reported | 12 of 12 |
| 2004 | 10,232,766 | Not reported | 12 of 12 |
| 2005 | 10,077,846 | Not reported | 12 of 12 |
| 2006 | 10,418,586 | Not reported | 12 of 12 |
| 2007 | 9,358,784 | Not reported | 12 of 12 |
| 2008 | 9,396,790 | Not reported | 12 of 12 |
| 2009 | 10,998,515 | Not reported | 12 of 12 |
| 2010 | 9,643,241 | 80.2% | 12 of 12 |
| 2011 | 10,336,789 | 86.0% | 12 of 12 |
| 2012 | 7,296,134 | Not reported | 12 of 12 |
| 2013 | 10,864,509 | Not reported | 12 of 12 |
| 2014 | 10,252,183 | 81.3% | 12 of 12 |
| 2015 | 11,714,588 | 92.9% | 12 of 12 |
| 2016 | 5,897,272 | 46.6% | 12 of 12 |
| 2017 | 7,364,648 | 58.4% | 12 of 12 |
| 2018 | 6,919,470 | 54.9% | 12 of 12 |
| 2019 | 11,032,514 | 87.5% | 12 of 12 |
| 2020 | 6,470,934 | 51.2% | 12 of 12 |
| 2021 | 11,772,058 | 93.3% | 12 of 12 |
| 2022 | 8,600,330 | 68.2% | 12 of 12 |
| 2023 | 11,749,621 | 93.1% | 12 of 12 |
| 2024 | 10,653,403 | 84.2% | 12 of 12 |
| 2025 | 11,807,221 | 93.6% | 12 of 12 |
| 2026 (provisional, partial year) | 5,358,815 | 73.1% | 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 account · MISOEmissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
12,336
million gallons
Consumption, 2024
10,585
million gallons
Source
Mississippi River Aquifer
Ground, Fresh. Natural-draft tower
Watershed stress
Low · 0.200
USGS SUI, HUC12 Yucatan Lake-Mississippi River
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 |
|---|---|---|---|
| 1 | Nuclear | 1,440.0 | July 1985 |
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 System Energy Resources, Inc 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.
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Power plants near Grand Gulf
Questions about Grand Gulf
How much power does Grand Gulf produce?
Grand Gulf reported 11,807,221 MWh (11.8 TWh) of net generation in 2025, a 93.6% capacity factor on 1,440 MW of nameplate capacity. From January to July 2026 it reported 5.36 TWh, which is provisional.
Where is Grand Gulf?
Grand Gulf is in Claiborne County, Mississippi, at 32.0081, −91.0478. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Grand Gulf?
EIA-860M for August 2026 lists System Energy Resources, Inc as the operator (EIA operator ID 12465). The operator is not always the owner.
When did Grand Gulf start operating?
Its first generator began operating in July 1985, according to EIA-860M.
Does InfraMap have power prices for Grand Gulf?
Yes. InfraMap has MISO day-ahead and real-time prices at 4 price nodes linked to Grand Gulf, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
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)
- MISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- 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
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page