Big Cajun 1
Natural gas power plant in Pointe Coupee Parish, Louisiana. 492.8 MW of nameplate capacity across 4 generators, operated by Louisiana Generating LLC.
Also known as Big Cajun I · EIA plant 1464
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Key facts
- Capacity
- 492.8 MWNameplate
- Generators
- 4 operatingEIA-860M, August 2026
- Operating since
- June 1972First generator online
- Operator
- Louisiana Generating LLCEIA operator ID 11252
- Grid
- MISOBalancing authority MISO
- Price nodes
- 4 MISO nodesResource nodes with prices
- Location
- Pointe Coupee Parish, LA30.6739, −91.3556
- EIA plant ID
- 1464EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Big Cajun 1 produces
Free · EIA-923Net generation, 2025
158 GWh
157,522 MWh, final
Capacity factor, 2025
3.6%
2024: 3.5%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2019 to 2025
54.3–268.1
GWh a year. Low 2020, high 2023
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 224,492 | Not reported | 12 of 12 |
| 2001 | 55,357 | Not reported | 12 of 12 |
| 2002 | 85,259 | Not reported | 12 of 12 |
| 2003 | 4,274 | Not reported | 12 of 12 |
| 2004 | 0 | Not reported | 12 of 12 |
| 2005 | 11,026 | Not reported | 12 of 12 |
| 2006 | 11,402 | Not reported | 12 of 12 |
| 2007 | 30,423 | Not reported | 12 of 12 |
| 2008 | 0 | Not reported | 1 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | 108,094 | 2.5% | 12 of 12 |
| 2012 | 107,590 | 2.5% | 12 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | Not reported | Not reported | 0 of 12 |
| 2018 | 12,133 | 3.3% | 1 of 12 |
| 2019 | 130,766 | 3.0% | 12 of 12 |
| 2020 | 54,343 | 1.3% | 12 of 12 |
| 2021 | 72,157 | 1.7% | 12 of 12 |
| 2022 | 142,648 | 3.3% | 12 of 12 |
| 2023 | 268,065 | 6.2% | 12 of 12 |
| 2024 | 151,045 | 3.5% | 12 of 12 |
| 2025 | 157,522 | 3.6% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 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
127,744
US short tons. 2024: 119,826
SO₂, 2025
1
US short tons
NOx, 2025
77
US short tons
CO₂ per MWh, calculated
0.81 t
About 1,622 lb per MWh
4 of 4 EPA units reported CO₂ in 2025 (1B1, 1B2, CTG1, CTG2), matched to EIA plant 1464 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
202
million gallons
Consumption, 2024
72
million gallons
Source
Wells
Ground, Fresh. Induced-draft tower
Watershed stress
Moderate · 0.402
USGS SUI, HUC12 False River
24 of 24 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 | Natural Gas Steam Turbine | 113.6 | June 1972 |
| 2 | Natural Gas Steam Turbine | 113.6 | June 1972 |
| 3 | Natural Gas Fired Combustion Turbine | 132.8 | May 2001 |
| 4 | Natural Gas Fired Combustion Turbine | 132.8 | June 2001 |
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 Louisiana Generating 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 Big Cajun 1
More plants operated by Louisiana Generating LLC
Questions about Big Cajun 1
How much power does Big Cajun 1 produce?
Big Cajun 1 reported 157,522 MWh (158 GWh) of net generation in 2025, a 3.6% capacity factor on 492.8 MW of nameplate capacity.
Where is Big Cajun 1?
Big Cajun 1 is in Pointe Coupee Parish, Louisiana, at 30.6739, −91.3556. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Big Cajun 1?
EIA-860M for August 2026 lists Louisiana Generating LLC as the operator (EIA operator ID 11252). The operator is not always the owner.
When did Big Cajun 1 start operating?
Its first generator began operating in June 1972, according to EIA-860M.
Does InfraMap have power prices for Big Cajun 1?
Yes. InfraMap has MISO day-ahead and real-time prices at 4 price nodes linked to Big Cajun 1, 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