Elm Street Substation Generators
Other power plant · St Francois County, Missouri
Nameplate capacity
6.0 MW
Rank in Missouri
#104
of 139 plants
In service since
2002
October 2002
Details
- Primary fuel
- Other
- Technology
- Petroleum Liquids
- Operator
- City of Farmington - (MO)
- County
- St Francois County
- Generating units
- 3
- Share of state capacity
- 0.03%
- Rank among other plants in Missouri
- #25 of 35
- EIA plant code
- 56597
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| EP01 | Petroleum Liquids | 2.0 MW | 1.7 MW | 2002 | Standby/Backup: available for service but not normally used |
| EP02 | Petroleum Liquids | 2.0 MW | 1.7 MW | 2002 | Standby/Backup: available for service but not normally used |
| EP03 | Petroleum Liquids | 2.0 MW | 1.7 MW | 2002 | Standby/Backup: available for service but not normally used |
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 Missouri
| Shelbina Power #2 | Other | 6.6 MW |
| Salisbury City of | Other | 6.4 MW |
| Montgomery County Community Solar Center | Solar | 5.7 MW |
| Grand Ave Plant | Natural gas | 5.0 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 6.0 MW solar plant and a 6.0 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 Missouri power plants · What Missouri actually generates