Covanta Southeastern Connecticut Company
New London County, Connecticut · EIA plant ID 10646 · Operator: Covanta Southeastern Connecticut Company
Nameplate18MWSummer 16 MW
Generators1in service
Net generation106GWh12 mo to Aug 2026
Capacity factor73%other units, summer MW
Heat rate22,105Btu/kWhfossil units, electric fuel, HHV
First online1991
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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), other 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 | 129 | 135.4% | — |
| 2002 | 139.7 | 132.9% | — |
| 2003 | 141.8 | 134.5% | 18,003 |
| 2004 | 138.9 | 131.2% | 18,629 |
| 2005 | 136 | 128.8% | 18,748 |
| 2006 | 136.3 | 128.9% | 14,267 |
| 2007 | 134.1 | 125.9% | 19,472 |
| 2008 | 126.6 | 118.9% | 20,973 |
| 2009 | 140 | 132.4% | 19,828 |
| 2010 | 139.5 | 131.6% | 19,248 |
| 2011 | 136.2 | 128.2% | 20,411 |
| 2012 | 130 | 121.8% | 19,804 |
| 2013 | 134 | 125.5% | 19,373 |
| 2014 | 129.8 | 122.2% | 20,137 |
| 2015 | 128.7 | 121.0% | 21,094 |
| 2016 | 136.5 | 94.7% | 19,982 |
| 2017 | 124.8 | 86.6% | 22,067 |
| 2018 | 129.9 | 86.9% | 17,571 |
| 2019 | 130.8 | 90.6% | 19,591 |
| 2020 | 125.7 | 86.8% | 19,596 |
| 2021 | 122.4 | 84.0% | 19,442 |
| 2022 | 117.2 | 73.9% | 12,697 |
| 2023 | 114.2 | 78.7% | 21,660 |
| 2024 | 112.3 | 77.0% | 20,827 |
| 2025 | 116.4 | 80.2% | 20,776 |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Municipal Solid Waste | ST | 18.3 | 16.3 | Dec 1991 | Operating | — | coming soon |
Owner / operator
Operator: Covanta Southeastern Connecticut Company. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Covanta Southeastern Connecticut Company | 100.0% | 18 MW |
Nearby plants
Within 80 km.
| Fort Hill 1, 2, 3 & 4 | 10 MW | 2.8 km |
| Norwich WWTP | 2 MW | 5.8 km |
| North Main Street | retired | 5.8 km |
| Montville Station | 495 MW | 5.9 km |
| Rand Whitney CHP Plant | 17 MW | 6.1 km |
| Tenth Street | 1 MW | 7.3 km |