Walton Street Substation
St. Francois County, Missouri · EIA plant ID 56598 · Operator: City of Farmington - (MO)
Nameplate2MWSummer 2 MW
Generators1in service
Net generation0GWh12 mo to Dec 2025
Capacity factor0%gas/coal/oil units, summer MW
Heat rate12,000Btu/kWhfossil units, electric fuel, HHV
First online2003Runs as rarely runs
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2006 | -0.2 | -0.6% | — |
| 2007 | -0.1 | -0.2% | — |
| 2008 | -0.1 | -0.3% | — |
| 2009 | -0.1 | -0.2% | — |
| 2010 | -0.1 | -0.2% | — |
| 2011 | -0.1 | -0.2% | — |
| 2012 | 0 | 0.0% | 17,200 |
| 2013 | 0 | 0.1% | — |
| 2014 | 0 | 0.0% | — |
| 2015 | 0 | 0.0% | — |
| 2016 | 0 | 0.0% | 16,800 |
| 2017 | 0 | 0.0% | 19,625 |
| 2018 | 0 | 0.0% | 21,600 |
| 2019 | 0 | 0.0% | 8,750 |
| 2020 | 0 | 0.0% | 21,333 |
| 2021 | 0 | 0.1% | 12,000 |
| 2022 | 0 | 0.0% | — |
| 2023 | 0 | 0.1% | 9,417 |
| 2024 | 0 | 0.1% | 17,833 |
| 2025 | 0 | 0.1% | 12,000 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| EP07 | Petroleum Liquids | IC | 2 | 1.7 | Jan 2003 | Operating (Standby / backup) | — | coming soon |
| EP05 | Petroleum Liquids | IC | 2 | — | Jan 2003 | Retired Mar 2012 | — | coming soon |
| EP06 | Petroleum Liquids | IC | 2 | — | Jan 2003 | Retired Mar 2012 | — | coming soon |
Owner / operator
Operator: City of Farmington - (MO). Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| City of Farmington - (MO) | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| Elm Street Substation Generators | 6 MW | 1.7 km |
| Overall Road Station | 8 MW | 3.5 km |
| Farmington Solar Farm | 3 MW | 3.7 km |
| Fredericktown Energy Center | 28 MW | 26.2 km |
| Rush Island | retired | 41 km |
| Taum Sauk | 408 MW | 46.2 km |