Washington Parish Energy Center
Natural gas power plant in Washington Parish, Louisiana. 399.6 MW of nameplate capacity across 2 generators, operated by Entergy Louisiana LLC.
Also known as EIA plant 55486
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 399.6 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- November 2020First generator online
- Operator
- Entergy Louisiana LLCEIA operator ID 11241
- Grid
- MISOBalancing authority MISO
- Price nodes
- 2 MISO nodesResource nodes with prices
- Location
- Washington Parish, LA30.7914, −89.9092
- EIA plant ID
- 55486EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Washington Parish produces
Free · EIA-923Net generation, 2025
411 GWh
410,721 MWh, final
Capacity factor, 2025
11.7%
2024: 8.8%
January to July 2026
141 GWh
Provisional
Range, 2021 to 2025
184.7–410.7
GWh a year. Low 2021, high 2025
| 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 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 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 | Not reported | Not reported | 0 of 12 |
| 2019 | Not reported | Not reported | 0 of 12 |
| 2020 | 7,986 | Not reported | 2 of 12 |
| 2021 | 184,680 | 5.3% | 12 of 12 |
| 2022 | 378,699 | 10.8% | 12 of 12 |
| 2023 | 343,098 | 9.8% | 12 of 12 |
| 2024 | 282,487 | 8.8% | 11 of 12 |
| 2025 | 410,721 | 11.7% | 12 of 12 |
| 2026 (provisional, partial year) | 140,946 | 6.9% | 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 account · MISOEmissions
Free · EPA CAMPDCO₂, 2025
227,486
US short tons. 2024: 158,258
SO₂, 2025
1
US short tons
NOx, 2025
52
US short tons
CO₂ per MWh, calculated
0.55 t
About 1,108 lb per MWh
2 of 2 EPA units reported CO₂ in 2025 (CTG01, CTG02), matched to EIA plant 55486 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, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| CTG01 | Natural Gas Fired Combustion Turbine | 199.8 | November 2020 |
| CTG02 | Natural Gas Fired Combustion Turbine | 199.8 | November 2020 |
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 Washington Parish
More plants operated by Entergy Louisiana LLC
Questions about Washington Parish
How much power does Washington Parish Energy Center produce?
Washington Parish Energy Center reported 410,721 MWh (411 GWh) of net generation in 2025, a 11.7% capacity factor on 399.6 MW of nameplate capacity. From January to July 2026 it reported 141 GWh, which is provisional.
Where is Washington Parish Energy Center?
Washington Parish Energy Center is in Washington Parish, Louisiana, at 30.7914, −89.9092. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Washington Parish Energy Center?
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 Washington Parish Energy Center start operating?
Its first generator began operating in November 2020, according to EIA-860M.
Does InfraMap have power prices for Washington Parish Energy Center?
Yes. InfraMap has MISO day-ahead and real-time prices at 2 price nodes linked to Washington Parish Energy Center, 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
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page