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824.1 MW Natural Gas Fired Combined Cycle (638 MW) + Natural Gas Fired Combustion Turbine (186 MW) operating in Ouachita, LA — Midcontinent Independent Transmission System Operator, Inc..
824.1 MW
Nameplate Capacity
4
Generators
units
Hybrid (2)
Technology
Natural Gas Fired Combined Cycle + Natural Gas Fired Combustion Turbine
2001
Operating Since
Coordinates
32.6908, -92.0183
County
Ouachita, LA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Entergy Louisiana LLC | Entergy Louisiana | — |
| Owner(s) | Entergy Louisiana LLC | Entergy | — |
| Status | Operating | — | — |
Perryville Power Station is an 824.1 MW natural gas-fired power plant located in Ouachita County, Louisiana. The plant, which began operating in 2001, is owned by Entergy and operated by Entergy Louisiana LLC. It consists of four generators utilizing both natural gas-fired combined cycle and natural gas-fired combustion turbine technologies, making it a hybrid plant. Perryville is connected to the Midcontinent Independent Transmission System Operator, Inc. (MISO) balancing authority and resides within the SERC NERC region. The plant ranks as the 12th largest in Louisiana out of 32 plants and 234th nationally out of 945 plants.
In the latest year of reported data, Perryville Power Station generated 3,790,663 MWh of electricity, achieving a capacity factor of 52.5%. Financial data indicates an installed cost of $394.76 per kW, according to FERC filings.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
500.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
428.2K MWh
Latest Month
3.8M MWh
Annual Generation
52.5%
Capacity Factor
CO₂ Intensity
819 lb/MWh
NOx
0.106 lb/MWh
SO₂
0.004 lb/MWh
CH₄
0.015 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
58.4%
Annual Net Gen
4217 GWh
CO₂eq
820 lb/MWh
Subregion
SERC Mississippi Valley
Gas turbine · Entergy Louisiana, LLC · Data from 2016–2024
$463/kW
Installed Cost
$2/kW
Annual CapEx
$20.0/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Point of Interconnection
Nearest Substation
Sterlington Substation · 500 kV
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
EES.PERVL1
Pricing Hub
LOUISIANA.HUB
Alt. Hub / Zone
MS.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
Last updated 2026-03-14
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