Eversource is New England’s largest energy delivery company, with more than 3.6 million electric and natural gas customers in Connecticut and beyond.
Eversource Energy provides deregulated energy to most of Connecticut, including Bristol, Brooklyn, Cornwall, Danbury, Enfield, Greenwich, Hartford, Kent, Killingly, Manchester, Mansfield, Middletown, Montville, New Britain, New London, New Milford, Newtown, Old Saybrook, Plainfield, Putnam, Ridgefield, Salisbury, Sharon, Stamford, Torrington, Washington, Windham, Windsor Locks, and surrounding cities.
PO Box 270
Hartford, CT 06141
800-286-2000 (Residential Customer Service)