Perryville Power Station
Natural gas power plant in Ouachita Parish, Louisiana. 824.1 MW of nameplate capacity across 4 generators, operated by Entergy Louisiana LLC.
Also known as EIA plant 55620
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 824.1 MWNameplate
- Generators
- 4 operatingEIA-860M, August 2026
- Operating since
- June 2001First generator online
- Operator
- Entergy Louisiana LLCEIA operator ID 11241
- Grid
- MISOBalancing authority MISO
- Price nodes
- 2 MISO nodesResource nodes with prices
- Location
- Ouachita Parish, LA32.6908, −92.0183
- EIA plant ID
- 55620EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Perryville produces
Free · EIA-923Net generation, 2025
3.79 TWh
3,790,663 MWh, final
Capacity factor, 2025
52.5%
2024: 52.7%
January to July 2026
1.65 TWh
Provisional. 6 of 7 months reported
Range, 2017 to 2025
1.8–4.2
TWh a year. Low 2017, high 2023
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | 40,815 | Not reported | 7 of 12 |
| 2002 | 930,971 | Not reported | 12 of 12 |
| 2003 | 837,024 | Not reported | 12 of 12 |
| 2004 | 1,748,205 | Not reported | 12 of 12 |
| 2005 | 2,105,215 | Not reported | 12 of 12 |
| 2006 | 2,083,265 | Not reported | 12 of 12 |
| 2007 | 2,450,851 | Not reported | 12 of 12 |
| 2008 | 2,210,853 | Not reported | 12 of 12 |
| 2009 | 1,628,444 | Not reported | 12 of 12 |
| 2010 | 1,905,093 | 26.2% | 12 of 12 |
| 2011 | 1,928,207 | 26.5% | 12 of 12 |
| 2012 | 2,486,523 | Not reported | 12 of 12 |
| 2013 | 1,641,801 | Not reported | 12 of 12 |
| 2014 | 3,421,202 | 47.4% | 12 of 12 |
| 2015 | 3,424,662 | 51.7% | 11 of 12 |
| 2016 | 2,812,676 | 42.5% | 11 of 12 |
| 2017 | 1,763,373 | 24.4% | 12 of 12 |
| 2018 | 3,827,526 | 53.0% | 12 of 12 |
| 2019 | 2,795,549 | 38.7% | 12 of 12 |
| 2020 | 3,219,385 | 44.5% | 12 of 12 |
| 2021 | 2,297,841 | 31.8% | 12 of 12 |
| 2022 | 2,724,332 | 37.7% | 12 of 12 |
| 2023 | 4,217,187 | 58.4% | 12 of 12 |
| 2024 | 3,812,850 | 52.7% | 12 of 12 |
| 2025 | 3,790,663 | 52.5% | 12 of 12 |
| 2026 (provisional, partial year) | 1,652,725 | 45.4% | 6 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
1.59M
US short tons. 2024: 1.59M
SO₂, 2025
8
US short tons
NOx, 2025
218
US short tons
CO₂ per MWh, calculated
0.42 t
About 839 lb per MWh
3 of 3 EPA units reported CO₂ in 2025 (1-1, 1-2, 2-1), matched to EIA plant 55620 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
986
million gallons
Consumption, 2024
780
million gallons
Source
Bayou Bartholemew
Surface, Fresh. Induced-draft tower
Watershed stress
Low · 0.331
USGS SUI, HUC12 Black Bayou Lake-Bayou De Siard
12 of 12 cooling months report withdrawal. SUI of the HUC12 containing the plant. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 2-CT | Natural Gas Fired Combustion Turbine | 186.2 | June 2001 |
| CT-1 | Natural Gas Fired Combined Cycle | 198.9 | June 2002 |
| CT-2 | Natural Gas Fired Combined Cycle | 198.9 | July 2002 |
| ST-1 | Natural Gas Fired Combined Cycle | 240.1 | July 2002 |
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.
300 analyst questions a month, plus MCP
Query Perryville Power Station and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near Perryville
More plants operated by Entergy Louisiana LLC
Questions about Perryville
How much power does Perryville Power Station produce?
Perryville Power Station reported 3,790,663 MWh (3.79 TWh) of net generation in 2025, a 52.5% capacity factor on 824.1 MW of nameplate capacity. From January to July 2026 it reported 1.65 TWh, which is provisional.
Where is Perryville Power Station?
Perryville Power Station is in Ouachita Parish, Louisiana, at 32.6908, −92.0183. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Perryville Power Station?
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 Perryville Power Station start operating?
Its first generator began operating in June 2001, according to EIA-860M.
Does InfraMap have power prices for Perryville Power Station?
Yes. InfraMap has MISO day-ahead and real-time prices at 2 price nodes linked to Perryville Power Station, 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
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page