Walton Street Substation
Other power plant · St Francois County, Missouri
Nameplate capacity
2.0 MW
Rank in Missouri
#133
of 139 plants
In service since
2003
January 2003
Details
- Primary fuel
- Other
- Technology
- Petroleum Liquids
- Operator
- City of Farmington - (MO)
- County
- St Francois County
- Generating units
- 1
- Share of state capacity
- 0.01%
- Rank among other plants in Missouri
- #33 of 35
- EIA plant code
- 56598
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| EP07 | Petroleum Liquids | 2.0 MW | 1.7 MW | 2003 | 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
| Prosperity Solar Farm CSG | Solar | 2.3 MW |
| MBS Textbook Exchange | Other | 2.0 MW |
| Renewable Energy Center at BJH | Solar | 1.6 MW |
| St Joseph Landfill Generating Station | Other | 1.6 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 2.0 MW solar plant and a 2.0 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