Summary of Electricity Activity in St. Mary Parish, LA
Summary of St. Mary Parish, LA Generation
St. Mary Parish, LA is ranked #1,027 out of 2,155 U.S. counties nationwide and #19 out of 32 Louisiana counties in terms of total annual net electricity generation.
| Annual Generation | 432.0 GWh |
|---|---|
| Annual Consumption | 4.8 M MMBtu |
| Last Update | Dec 2024 |
| Power Plants | 8 |
| Companies on File | 5 |
Map of Top Producing Plants in St. Mary Parish, LA
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Annual Net Generation From waste heat power
254.4 GWh
National Rank in Terms of waste heat Net Electricity Generation
#4 /23 U.S. Counties
State Rank in Terms of waste heat Net Electricity Generation
#1 /4 Louisiana Counties
Monthly Net Generation for St. Mary Parish, LA
Net Generation by Fuel Source
Net Generation by Fuel Source Breakdown
| State Rank | National Rank | Generation | Fuel Consumption | |
|---|---|---|---|---|
| All | #19 / 32 | #1027 / 2155 | 432.03 GWh | 4.84 M MMBtu |
| Waste Heat | #1 / 4 | #4 / 23 | 254.38 GWh | 939.24 k MMBtu |
| Natural Gas | #17 / 25 | #491 / 926 | 165.54 GWh | 1.49 M MMBtu |
| Other Fuel | #1 / 1 | #5 / 7 | 12.11 GWh | 2.40 M MMBtu |
Power Plants in St. Mary Parish, LA
| Plant | Utility Name | Generation | Consumption | Fuel Types |
|---|---|---|---|---|
| St. Mary Clean Energy Center | Cleco Power LLC | 201.2 GWh | 745.6 k MMBtu | Waste Heat |
| LEPA Unit No. 1 | Louisiana Energy & Power Authority | 144.7 GWh | 1.2 M MMBtu | Natural Gas |
| Ivanhoe Generation Facility | Orion Engineered Carbons | 53.2 GWh | 193.6 k MMBtu | Waste Heat |
| Teche | Cleco Power LLC | 20.9 GWh | 275.6 k MMBtu | Natural Gas |
| Neptune Gas Processing Plant | Enterprise Products Optg LP | 12.1 GWh | 2.4 M MMBtu | Other Fuel |
| ExxonMobil Garden City Gas Plant | Exxon Mobil Production Co | 0.0 Wh | 0 MMBtu | No Information Available |
| Franklin (LA) | Cleco Power LLC | 0.0 Wh | 0 MMBtu | No Information Available |
| Morgan City | Louisiana Energy & Power Authority | 0.0 Wh | 0 MMBtu | No Information Available |
Electricity Generation for Neighboring Counties
| National Rank | County | Net Generation | # Power Plants |
|---|---|---|---|
| #255 | Acadia Parish | 5.3 TWh | 5 |
| #558 | Ascension Parish | 1.7 TWh | 4 |
| #333 | East Baton Rouge Parish | 3.8 TWh | 7 |
| #72 | Iberville Parish | 11.6 TWh | 9 |
| #1526 | Lafayette Parish | 80.4 GWh | 4 |
| #19 | St. Charles Parish | 21.8 TWh | 6 |
| #1169 | St. James Parish | 289.5 GWh | 5 |
| #1358 | St. Landry Parish | 153.8 GWh | 2 |
| # | Terrebonne Parish | -960.0 MWh | 1 |
| #1351 | West Baton Rouge Parish | 156.0 GWh | 2 |
* Net Generation data is based on the last 12 months since Jun 2025
Electricity Generation for Cities Located in St. Mary Parish, LA
| State Rank | City | Net Generation | # Power Plants |
|---|---|---|---|
| #49 | Baldwin, LA | 20.9 GWh | 1 |
| #30 | Centerville, LA | 213.3 GWh | 3 |
| #45 | Franklin, LA | 53.2 GWh | 2 |
| #36 | Morgan City, LA | 144.7 GWh | 2 |
* Net Generation data is based on the last 12 months since Dec 2024