1002.9 MW Natural Gas operating in St Charles, LA — Midcontinent Independent Transmission System Operator, Inc..
1,002.9 MW
Nameplate Capacity
2
Generators
units
Natural Gas Steam Turbine
Technology
1966
Operating Since
Coordinates
30.0048, -90.4619
County
St Charles, LA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Entergy Louisiana LLC | Entergy Louisiana | Entergy |
| Owner(s) | Entergy Louisiana LLC | Entergy | — |
| Status | Operating | — | — |
Little Gypsy is a natural gas-fired power plant located in St Charles County, Louisiana. The plant has a total capacity of 1002.9 MW across two generators utilizing natural gas steam turbine technology. It began operating in 1966 and is owned by Entergy and operated by Entergy Louisiana LLC. Little Gypsy ranks as the 6th largest power plant in Louisiana out of 32, and 168th nationally out of 945 plants.
The plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the SERC NERC region. The latest annual generation data indicates an output of 771,950 MWh, resulting in a capacity factor of 9.5%. Financial data indicates an installed cost of $121.45 per kW, based on FERC data.
Generated from EIA, GEM, and public data sources
NERC Region
SERC
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
115 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
18.7K MWh
Latest Month
772.0K MWh
Annual Generation
9.5%
Capacity Factor
$216/kW
Installed Cost
$38.6/MWh
Operating Cost
Entergy Louisiana, LLC
Reporting Utility
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Point of Interconnection
Nearest Substation
Little Gypsy Substation · 230 kV
Substation Distance
< 10 km
Operator
Entergy Louisiana
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
EES.L_GYPSY3
Pricing Hub
LOUISIANA.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
Last updated 2026-03-26
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