World Power Plants

St. Mary Clean Energy Center58.2 MW Cogeneration

Cogeneration

St. Mary Clean Energy Center is a 58.2 MW cogeneration power plant in the United States, operated by Cleco Power LLC since 2019. Ranked #5 of 34 cogeneration plants in the United States. Its 58.2 MW represents 5.59% of the country's total cogeneration capacity of 1,042 MW. The largest cogeneration plant in the United States is Mosaic New Wales Operations at 136 MW, making this facility 2.3 times smaller. Nearby plants within 50 km include Teche (390.7 MW, Gas), LEPA Unit No. 1 (74.1 MW, Gas), and Neptune Gas Processing Plant (4.5 MW, Other). The facility is located in Louisiana, approximately 80 km southwest of Baton Rouge.

Capacity
58.2 MW
Commissioning Year
2019

7 years old

Owner
Cleco Power LLC
Location
29.6846°, -91.4706°

United States of America, North America

Context & rankings
  • 2,784. largest of 10,098 plants in United States of America
  • #12,558 worldwide by installed capacity
  • #9 of 41 Cogeneration plants worldwide
Age & fleet comparison

7 years in operation

Cogeneration fleet average: 30.1 years

Operator portfolio

Cleco Power LLC operates 6 plants totalling 5,189 MW

Regional density

26 plants within 100 km, 4,305 MW combined

Nearest plant: Neptune Gas Processing Plant (6.1 km)

Location

Coordinates:: 29.684600, -91.470600
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Carbon Footprint490 g CO₂/kWh
Annual CO₂
149.9 Kt
306 GWh/year × 490 g/kWh
Cumulative CO₂
1.05 Mt
Over 7 years of operation
Est. Retirement
2049
23 years remaining
Annual emissions equivalent to
32.6K
cars per year
20.0K
homes per year
6.8M
trees to offset

Estimates based on Cogeneration emission factor (490 g CO₂/kWh) and capacity factor (60%). Actual emissions may vary based on operating conditions, efficiency, and fuel quality.

Technical Details

Primary Fuel Type
Cogeneration
Energy Source
Non-Renewable
Country
United States of America
Continent
North America
Data Source
Global Power Plant Database

United States of AmericaEnergy Profile

10,098
Total Plants
1420.7 GW
Total Capacity
GasCoalNuclearWind
Top Fuels

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