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Energy-from-Waste Facility

Covanta SECONN (Covanta Company of Southeastern Connecticut)
Preston, Connecticut

Numerous communities benefit from the waste disposal and energy generating services provided by the Southeastern Connecticut Resource Recovery facility in Preston, Connecticut, operating as Covanta SECONN. The facility, which opened in 1991, receives waste six days a week and safely disposes of approximately 689 tons of municipal solid waste a day while producing 18.4 megawatts (MW) of renewable energy. The plant sells any electricity generated beyond its internal operating consumption to Connecticut Light & Power. Electric revenues benefit the Southeastern Connecticut Resource Recovery Authority's (SCRRA) member towns by helping to minimize trash disposal fees.

The Southeastern Connecticut facility received the U.S. Occupational Safety and Health Administration (OSHA) Voluntary Protection Programs (VPP) Star facility designation in 1995 and recertified in 1998, 2003 and 2008.

Technical Data

Facility Address:

132 Military Highway
Preston, CT 06365
(860) 889-4900

Service Area:

Southeastern Connecticut region

Energy Market:

Electricity generation for plant use and export to Connecticut Light & Power

Mass Burn Technology:

Deutsche Babcock Anlagen


689 tons per day @ 5,000 British Thermal Units/lb

Number of Process Lines:

Two @ 345 tons per day

 Steam Conditions at Boiler Outlet:

91,000 lbs/hr, @ 855 pounds per square inch absolute (psia)/842°F


One GEC Alsthom generator rated at 20,400 KVA

Air Quality Control:

Two dry scrubber systems followed by two fabric filter (baghouse) systems

Stack Height:

240 feet

Bunker Capacity:

3,000 tons