Little Gypsy
Natural gas power plant in St Charles Parish, Louisiana. 1,002.9 MW of nameplate capacity across 2 generators, operated by Entergy Louisiana LLC.
Also known as Little Gypsy Power Plant · EIA plant 1402
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Key facts
- Capacity
- 1,002.9 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- April 1966First generator online
- Operator
- Entergy Louisiana LLCEIA operator ID 11241
- Grid
- MISOBalancing authority MISO
- Price nodes
- 1 MISO nodeResource nodes with prices
- Location
- St Charles Parish, LA30.0051, −90.4617
- EIA plant ID
- 1402EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Little Gypsy produces
Free · EIA-923Net generation, 2025
772 GWh
771,950 MWh, final. 11 of 12 months reported
Capacity factor, 2025
9.6%
2024: 14.4%
January to July 2026
602 GWh
Provisional
Range, 2015 to 2024
0.6–2.7
TWh a year. Low 2023, high 2019
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 2,966,403 | Not reported | 12 of 12 |
| 2001 | 2,968,709 | Not reported | 12 of 12 |
| 2002 | 2,358,145 | Not reported | 12 of 12 |
| 2003 | 1,333,332 | Not reported | 12 of 12 |
| 2004 | 1,338,786 | Not reported | 12 of 12 |
| 2005 | 1,875,467 | Not reported | 12 of 12 |
| 2006 | 975,690 | Not reported | 12 of 12 |
| 2007 | 1,294,891 | Not reported | 12 of 12 |
| 2008 | 2,015,929 | Not reported | 12 of 12 |
| 2009 | 2,165,377 | Not reported | 12 of 12 |
| 2010 | 1,765,324 | 16.1% | 12 of 12 |
| 2011 | 1,797,281 | 16.4% | 12 of 12 |
| 2012 | 1,887,221 | 17.2% | 12 of 12 |
| 2013 | 1,456,013 | 13.3% | 12 of 12 |
| 2014 | 1,423,842 | 13.0% | 12 of 12 |
| 2015 | 1,765,874 | Not reported | 12 of 12 |
| 2016 | 2,511,400 | 28.5% | 12 of 12 |
| 2017 | 2,146,181 | 24.4% | 12 of 12 |
| 2018 | 1,618,180 | 18.4% | 12 of 12 |
| 2019 | 2,708,876 | 30.8% | 12 of 12 |
| 2020 | 1,641,902 | 18.6% | 12 of 12 |
| 2021 | 604,429 | 6.9% | 12 of 12 |
| 2022 | 837,186 | 9.5% | 12 of 12 |
| 2023 | 575,976 | 6.6% | 12 of 12 |
| 2024 | 1,267,261 | 14.4% | 12 of 12 |
| 2025 | 771,950 | 9.6% | 11 of 12 |
| 2026 (provisional, partial year) | 601,819 | 11.8% | 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 CAMPDCO₂, 2025
558,840
US short tons. 2024: 861,779
SO₂, 2025
3
US short tons
NOx, 2025
793
US short tons
2 of 2 EPA units reported CO₂ in 2025 (1, 2, 3), matched to EIA plant 1402 through the EPA–EIA crosswalk.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
126,284
million gallons
Consumption, 2024
6,302
million gallons
Source
Mississippi River
Surface, Fresh. Once-through
Watershed stress
Very low/none · 0.199
USGS SUI, HUC12 Illinois Central Gulf-Frontal Lake Pontchartrain
24 of 24 cooling months report withdrawal. SUI of the source river HUC12 within 3 km. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 2 | Natural Gas Steam Turbine | 420.7 | April 1966 |
| 3 | Natural Gas Steam Turbine | 582.2 | March 1969 |
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 Entergy Louisiana LLC 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 Little Gypsy
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Questions about Little Gypsy
How much power does Little Gypsy produce?
Little Gypsy reported 771,950 MWh (772 GWh) of net generation in 2025, a 9.6% capacity factor on 1,002.9 MW of nameplate capacity. From January to July 2026 it reported 602 GWh, which is provisional. 11 of 12 months were reported for 2025.
Where is Little Gypsy?
Little Gypsy is in St Charles Parish, Louisiana, at 30.0051, −90.4617. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Little Gypsy?
EIA-860M for August 2026 lists Entergy Louisiana LLC as the operator (EIA operator ID 11241). The operator is not always the owner.
When did Little Gypsy start operating?
Its first generator began operating in April 1966, according to EIA-860M.
Does InfraMap have power prices for Little Gypsy?
Yes. InfraMap has MISO day-ahead and real-time prices at 1 price node linked to Little Gypsy, 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)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- 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