Ivanhoe Generation Facility
Other power plant · St Mary County, Louisiana
Nameplate capacity
31 MW
Rank in Louisiana
#72
of 98 plants
In service since
2023
April 2023
Details
- Primary fuel
- Other
- Technology
- All Other
- Operator
- Orion Engineered Carbons
- County
- St Mary County
- Generating units
- 1
- Share of state capacity
- 0.11%
- Rank among other plants in Louisiana
- #11 of 21
- EIA plant code
- 66175
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN1 | All Other | 31 MW | 27 MW | 2023 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Louisiana
| Lake Charles Plant | Other | 36 MW |
| Lake Charles Polymers | Natural gas | 31 MW |
| Mosaic Phosphates Uncle Sam | Other | 26 MW |
| Oak Point Cogen | Natural gas | 24 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 31 MW solar plant and a 31 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Louisiana power plants · What Louisiana actually generates