399.6 MW Natural Gas operating in Washington, LA — Midcontinent Independent Transmission System Operator, Inc..
399.6 MW
Nameplate Capacity
2
Generators
units
Natural Gas Fired Combustion Turbine
Technology
2020
Operating Since
Coordinates
30.7921, -89.9085
County
Washington, LA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Entergy Louisiana LLC | Entergy Louisiana | — |
| Owner(s) | Entergy Louisiana LLC | Entergy | — |
| Status | Operating | — | — |
Washington Parish Energy Center is a 399.6 MW natural gas-fired power plant located in Washington Parish, Louisiana. The plant began operating in 2020 and is owned by Entergy and operated by Entergy Louisiana LLC. It consists of two natural gas-fired combustion turbine generators. The plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the SERC NERC region.
In its most recent year of operation, the Washington Parish Energy Center generated 410,721 MWh of electricity, resulting in a capacity factor of 11.7%. The plant's installed cost was $427.66 per kW, according to FERC data. The plant is ranked as the 19th largest in Louisiana out of 32 plants, and 548th nationally out of 945 plants.
Generated from EIA, GEM, and public data sources
NERC Region
SERC
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
230 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
7.3K MWh
Latest Month
410.7K MWh
Annual Generation
11.7%
Capacity Factor
$562/kW
Installed Cost
$40.4/MWh
Operating Cost
Entergy Louisiana, LLC
Reporting Utility
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Market Position
ISO/RTO Market
MISO
LMP Node
EES.WASHEC_CT2
Pricing Hub
LOUISIANA.HUB
Location Type
Generation Node
Node Source
Curated node match
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Last updated 2026-03-14
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