Lepa Unit No. 1

🔥 Natural GasElectric Utility74 MW capacity

55th largest plant in Louisiana · 3113th nationally

Lepa Unit No. 1 is a natural gas power plant in Louisiana with a nameplate capacity of 74.1 MW. It generates roughly 183.2k MWh per year — enough to power about 17,443 average U.S. homes.

Its capacity factor of 28% reflects intermittent or peaking operation. At 990 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.

PeakingMid-meritBaseload0%40%80%100%28%
Peaking — intermittent or backup

Month by month in 2024

100% capacity0Jan: 12.1k MWh (22% of capacity)JFeb: 23.5k MWh (47% of capacity)FMar: 25.3k MWh (46% of capacity)MApr: 34.1k MWh (64% of capacity)AMay: 19.2k MWh (35% of capacity)MJun: 17.1k MWh (32% of capacity)JJul: 15.0k MWh (27% of capacity)JASOND

Ghost bars are each month's theoretical maximum (74.1 MW nameplate × hours in the month). Filled bars are actual net generation reported to EIA Form 923. The gap between them is capacity factor made visible.

Capacity74 MWnameplate
Annual Generation183.2k MWhEPA eGRID
Capacity Factor28%of theoretical max
Annual CO₂90.7kmetric tons

Location

Plant NameLepa Unit No. 1
OperatorLouisiana Energy & Power Authority
CityMorgan City
CountySt Mary County
StateLouisiana
ZIP70380
Coordinates29.69111, -91.19278

This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.

Natural Gas

Generators (2)

IDTechnologyFuelCapacityStatusOnline
LEPA1Natural Gas Fired Combined CycleNatural Gas57.0 MWOperating2016
LEPA2Natural Gas Fired Combined CycleNatural Gas17.1 MWOperating2016

Emissions (annual)

CO₂90.7k metric tons
NOₓ24 metric tons
CO₂ Rate990 lb/MWh
U.S. grid average800 lb/MWhNatural gas combined-cycle average900 lb/MWhThis plant990 lb/MWhCoal plant average2,100 lb/MWh

Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.

Grid context

NERC RegionSERC
Balancing AuthorityMidcontinent Independent Transmission System Operator, Inc..

About Natural Gas plants

Natural gas plants are the workhorse of the modern grid. Combined-cycle units achieve very high efficiency and can ramp up and down quickly to balance variable renewables. They emit roughly half the CO₂ per MWh of coal and far less of other pollutants, but they still release upstream methane during fuel extraction.

Other plants in St Mary County

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