Essex
Natural gas power plant in Stoddard County, Missouri. 121.2 MW of nameplate capacity across 1 generator, operated by Associated Electric Coop, Inc.
Also known as Essex Power Station · EIA plant 7749
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 121.2 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- June 1999First generator online
- Operator
- Associated Electric Coop, IncEIA operator ID 924
- Grid
- AECIBalancing authority AECI
- Price nodes
- None linkedNo verified ISO node
- Location
- Stoddard County, MO36.8682, −89.8402
- EIA plant ID
- 7749EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Essex produces
Free · EIA-923Net generation, 2025
92.9 GWh
92,850 MWh, final
Capacity factor, 2025
8.7%
2024: 5.9%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
33.3–92.9
GWh a year. Low 2018, high 2025
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 55,273 | Not reported | 12 of 12 |
| 2001 | 28,698 | Not reported | 12 of 12 |
| 2002 | 10,489 | Not reported | 12 of 12 |
| 2003 | 2,904 | Not reported | 12 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | 4,065 | Not reported | 12 of 12 |
| 2006 | 19,791 | Not reported | 12 of 12 |
| 2007 | 9,930 | Not reported | 12 of 12 |
| 2008 | 1,822 | Not reported | 12 of 12 |
| 2009 | 7,738 | Not reported | 12 of 12 |
| 2010 | 6,797 | 0.6% | 12 of 12 |
| 2011 | 7,729 | 0.7% | 12 of 12 |
| 2012 | 30,385 | 2.9% | 12 of 12 |
| 2013 | 3,559 | 0.3% | 12 of 12 |
| 2014 | 40,229 | 3.8% | 12 of 12 |
| 2015 | 86,842 | 8.2% | 12 of 12 |
| 2016 | 71,001 | 6.7% | 12 of 12 |
| 2017 | 81,942 | 7.7% | 12 of 12 |
| 2018 | 33,318 | 3.1% | 12 of 12 |
| 2019 | 37,263 | 3.5% | 12 of 12 |
| 2020 | 90,245 | 8.5% | 12 of 12 |
| 2021 | 35,810 | 3.4% | 12 of 12 |
| 2022 | 72,071 | 6.8% | 12 of 12 |
| 2023 | 74,293 | 7.0% | 12 of 12 |
| 2024 | 62,554 | 5.9% | 12 of 12 |
| 2025 | 92,850 | 8.7% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDCO₂, 2025
68,061
US short tons. 2024: 44,879
SO₂, 2025
0
US short tons
NOx, 2025
69
US short tons
CO₂ per MWh, calculated
0.73 t
About 1,466 lb per MWh
1 of 1 EPA units reported CO₂ in 2025 (1), matched to EIA plant 7749 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Natural Gas Fired Combustion Turbine | 121.2 | June 1999 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Associated Electric Coop, Inc as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
300 analyst questions a month, plus MCP
Query Essex and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near Essex
More plants operated by Associated Electric Coop, Inc
Questions about Essex
How much power does Essex produce?
Essex reported 92,850 MWh (92.9 GWh) of net generation in 2025, a 8.7% capacity factor on 121.2 MW of nameplate capacity.
Where is Essex?
Essex is in Stoddard County, Missouri, at 36.8682, −89.8402. It is in the Associated Electric Cooperative, Inc. balancing area (AECI).
Who operates Essex?
EIA-860M for August 2026 lists Associated Electric Coop, Inc as the operator (EIA operator ID 924). The operator is not always the owner.
When did Essex start operating?
Its first generator began operating in June 1999, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page