Covanta Southeastern Connecticut Company
Municipal solid waste power plant in New London County, Connecticut. 18.3 MW of nameplate capacity across 1 generator, operated by Covanta Southeastern Connecticut Company.
Also known as Covanta SECONN · EIA plant 10646
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Key facts
- Capacity
- 18.3 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- December 1991First generator online
- Operator
- Covanta Southeastern Connecticut CompanyEIA operator ID 528
- Grid
- ISO-NEBalancing authority ISNE
- Price nodes
- 1 ISONE nodeResource nodes with prices
- Location
- New London County, CT41.4750, −72.0688
- EIA plant ID
- 10646EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Covanta Southeastern Connecticut Company produces
Free · EIA-923Net generation, 2025
116 GWh
116,403 MWh, final
Capacity factor, 2025
72.6%
2024: 69.9%
January to July 2026
55.9 GWh
Provisional
Range, 2015 to 2025
112.3–136.5
GWh a year. Low 2024, high 2016
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | 129,008 | Not reported | 12 of 12 |
| 2002 | 139,681 | Not reported | 12 of 12 |
| 2003 | 21,272 | Not reported | 2 of 12 |
| 2004 | 138,913 | Not reported | 12 of 12 |
| 2005 | 136,045 | Not reported | 12 of 12 |
| 2006 | 136,323 | Not reported | 12 of 12 |
| 2007 | 134,104 | Not reported | 12 of 12 |
| 2008 | 126,576 | Not reported | 12 of 12 |
| 2009 | 139,971 | Not reported | 12 of 12 |
| 2010 | 139,529 | 94.2% | 12 of 12 |
| 2011 | 136,204 | 92.0% | 12 of 12 |
| 2012 | 130,035 | 87.6% | 12 of 12 |
| 2013 | 133,970 | 90.5% | 12 of 12 |
| 2014 | 129,798 | 87.7% | 12 of 12 |
| 2015 | 128,678 | 86.9% | 12 of 12 |
| 2016 | 136,462 | Not reported | 12 of 12 |
| 2017 | 124,777 | 77.8% | 12 of 12 |
| 2018 | 129,856 | 81.0% | 12 of 12 |
| 2019 | 130,788 | 81.6% | 12 of 12 |
| 2020 | 125,740 | 78.2% | 12 of 12 |
| 2021 | 122,423 | 76.4% | 12 of 12 |
| 2022 | 117,228 | 73.1% | 12 of 12 |
| 2023 | 114,241 | 71.3% | 12 of 12 |
| 2024 | 112,314 | 69.9% | 12 of 12 |
| 2025 | 116,403 | 72.6% | 12 of 12 |
| 2026 (provisional, partial year) | 55,911 | 60.0% | 7 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 account · ISONEEmissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
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 |
|---|---|---|---|
| GEN1 | Municipal Solid Waste | 18.3 | December 1991 |
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 Covanta Southeastern Connecticut Company 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.
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Questions about Covanta Southeastern Connecticut Company
How much power does Covanta Southeastern Connecticut Company produce?
Covanta Southeastern Connecticut Company reported 116,403 MWh (116 GWh) of net generation in 2025, a 72.6% capacity factor on 18.3 MW of nameplate capacity. From January to July 2026 it reported 55.9 GWh, which is provisional.
Where is Covanta Southeastern Connecticut Company?
Covanta Southeastern Connecticut Company is in New London County, Connecticut, at 41.4750, −72.0688. It is in the ISO New England Inc. balancing area (ISNE).
Who operates Covanta Southeastern Connecticut Company?
EIA-860M for August 2026 lists Covanta Southeastern Connecticut Company as the operator (EIA operator ID 528). The operator is not always the owner.
When did Covanta Southeastern Connecticut Company start operating?
Its first generator began operating in December 1991, according to EIA-860M.
Does InfraMap have power prices for Covanta Southeastern Connecticut Company?
Yes. InfraMap has ISONE day-ahead and real-time prices at 1 price node linked to Covanta Southeastern Connecticut Company, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
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)
- ISONE day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page