Essex
Stoddard County, Missouri · EIA plant ID 7749 · Operator: Associated Electric Coop, Inc
Nameplate121MWSummer 104 MW
Generators1in service
Net generation93GWh12 mo to Dec 2025
Capacity factor10%gas/coal/oil units, summer MW
Heat rate12,380Btu/kWhfossil units, electric fuel, HHV
First online1999Runs as peaking
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) |
|---|---|---|---|
| 2001 | 28.7 | 3.0% | 11,793 |
| 2002 | 10.5 | 1.1% | 11,351 |
| 2003 | 2.9 | 0.3% | 11,543 |
| 2005 | 4.1 | 0.4% | 11,831 |
| 2006 | 19.8 | 2.1% | 11,878 |
| 2007 | 9.9 | 1.1% | 11,780 |
| 2008 | 1.8 | 0.2% | 11,890 |
| 2009 | 7.7 | 0.8% | 11,848 |
| 2010 | 6.8 | 0.7% | 11,765 |
| 2011 | 7.7 | 0.8% | 11,935 |
| 2012 | 30.4 | 3.9% | 11,527 |
| 2013 | 3.6 | 0.5% | 11,949 |
| 2014 | 40.2 | 5.2% | 11,201 |
| 2015 | 86.8 | 11.1% | 11,321 |
| 2016 | 71 | 7.8% | 11,260 |
| 2017 | 81.9 | 9.0% | 11,719 |
| 2018 | 33.3 | 3.9% | 12,188 |
| 2019 | 37.3 | 4.3% | 10,541 |
| 2020 | 90.2 | 10.7% | 11,751 |
| 2021 | 35.8 | 4.3% | 11,543 |
| 2022 | 72.1 | 8.7% | 10,284 |
| 2023 | 74.3 | 9.0% | 12,358 |
| 2024 | 62.6 | 7.6% | 12,151 |
| 2025 | 92.9 | 10.2% | 12,380 |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Natural Gas Fired Combustion Turbine | GT | 121.2 | 104 | Jun 1999 | Operating | — | coming soon |
Owner / operator
Operator: Associated Electric Coop, Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Associated Electric Coop, Inc | 100.0% | 121 MW |
Nearby plants
Within 80 km.
| Sikeston Power Station | 261 MW | 19.5 km |
| Kelso Solar | 200 MW | 34.9 km |
| Kelso 2 Solar | 149 MW | 34.9 km |
| Malden | 16 MW | 36.8 km |
| Delta Bobcat Solar | — | 40.9 km |
| St Francis Energy Facility | 507 MW | 43.5 km |