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74.1 MW Natural Gas operating in St Mary, LA — Midcontinent Independent Transmission System Operator, Inc..
74.1 MW
Nameplate Capacity
2
Generators
units
Natural Gas Fired Combined Cycle
Technology
2016
Operating Since
Coordinates
29.6911, -91.1928
County
St Mary, LA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Louisiana Energy & Power Authority | Louisiana Energy & Power Authority | — |
| Owner(s) | Louisiana Energy & Power Authority | Louisiana Energy & Power Authority | — |
| Status | Operating | — | — |
LEPA Unit No. 1 is a natural gas-fired combined cycle power plant located in St. Mary County, Louisiana. The plant has a total capacity of 74.1 MW distributed across two generators. It is owned and operated by the Louisiana Energy & Power Authority. The plant began operating in 2016.
The plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the SERC NERC region. In terms of size, LEPA Unit No. 1 is ranked as the 38th largest power plant in Louisiana out of 51, and 1016th nationally out of 1963. The latest annual generation data indicates an output of 146,391 MWh, resulting in a capacity factor of 22.6%.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
0 MWh
Latest Month
146.4K MWh
Annual Generation
22.6%
Capacity Factor
CO₂ Intensity
990 lb/MWh
NOx
0.265 lb/MWh
SO₂
2016
$895/kW
Est. Construction Cost
Total estimated cost: $66.3M
Market Position
ISO/RTO Market
MISO
LMP Node
LEPA.CC.MGC_01
Pricing Hub
LOUISIANA.HUB
Node Source
EIA-860 direct report
Last updated 2026-03-26
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ask pi about LEPA Unit No. 1Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
138.0 kV
Regulatory Status
RE — Regulated
Entity Type
Political Subdivision
Sector
Electric Utility
0.005 lb/MWh
CH₄
0.019 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
28.2%
Annual Net Gen
183 GWh
CO₂eq
991 lb/MWh
Subregion
SPP South