Biomass Power Plants in Connecticut
Every operating biomass power plant in Connecticut on EIA-860M for 2026-07: 6 plants, 7 generating units and 161 MW of nameplate capacity across 5 counties, most of it inside ISO New England.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Plants
- 6
- 7 generating units
- Nameplate capacity
- 161 MW
- Counties
- 5
- Grid operator
- ISO New England
- covers most of these plants
Map of biomass power plants in Connecticut
Every one of the 6 plants is drawn at the coordinate EIA files for it.
Loading map…
- Biomass · 6
List of biomass power plants in Connecticut
Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.
| Wheelabrator BridgeportMunicipal Solid Waste | Wheelabrator Environmental Systems | Fairfield | 67 | 1 | 1988 | Operating |
| Plainfield Renewable Energy LLCWood/Wood Waste Biomass | Plainfield Renewable Energy, LLC | Windham | 43 | 1 | 2013 | Operating |
| Covanta Southeastern Connecticut CompanyMunicipal Solid Waste | Covanta Southeastern Connecticut Company | New London | 18.3 | 1 | 1991 | Operating |
| Covanta Bristol EnergyMunicipal Solid Waste | Covanta Bristol Inc | Hartford | 16.3 | 1 | 1987 | Operating |
| Wheelabrator LisbonMunicipal Solid Waste | Wheelabrator Environmental Systems | New London | 14.6 | 1 | 1995 | Operating |
| New Milford Gas RecoveryLandfill Gas | WM Renewable Energy LLC | Litchfield | 1.6 | 2 | 2008 | Operating |
Largest biomass power plants in Connecticut
- 1Wheelabrator BridgeportFairfield County, Connecticut67 MW
- 2Plainfield Renewable Energy LLCWindham County, Connecticut43 MW
- 3Covanta Southeastern Connecticut CompanyNew London County, Connecticut18.3 MW
- 4Covanta Bristol EnergyHartford County, Connecticut16.3 MW
- 5Wheelabrator LisbonNew London County, Connecticut14.6 MW
- 6New Milford Gas RecoveryLitchfield County, Connecticut1.6 MW
Biomass power plants by county in Connecticut
The county EIA files against each plant. It is the fastest way to find the plant nearest a given town.
| County | Plants | Nameplate MW |
|---|---|---|
| Fairfield | 1 | 67 |
| Windham | 1 | 43 |
| New London | 2 | 32.9 |
| Hartford | 1 | 16.3 |
| Litchfield | 1 | 1.6 |
Biomass Power Plants in Connecticut: FAQ
- How many biomass power plants are in Connecticut?
- 6, with 161 MW of nameplate capacity between them, spread over 5 counties. That is the EIA-860M operating count for 2026-07.
- Is there a map of Connecticut biomass power plants?
- Yes — the map above. Each dot is one biomass power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.
- Which is the largest biomass power plant in Connecticut?
- Wheelabrator Bridgeport, at 67 MW. The table is sorted largest first, so the rest follow it.
- Is there a biomass power plant near me in Connecticut?
- The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.
- Which grid operator runs Connecticut's biomass power plants?
- Most of them sit inside ISO New England, according to the balancing-authority code EIA files against each plant. Live conditions for that market are on this site.
- How current is this, and what is left out?
- EIA-860M for 2026-07. Wood and wood waste, landfill gas, municipal solid waste and other waste biomass. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.