About Eversource in CT | CT Energy Provider | Eversource

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Sustainability Environmental Commitment Proud to be recognized as one of the greenest energy companies in the nation.

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Renewable Energy Eversource Partners On Offshore Wind Farm Eversource and DONG Energy announced a partnership to build a proposed offshore wind farm.

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Report to Shareholders 2016 Annual Report Now Available Take a look back at Eversource's performance in 2016.

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Your Neighbors Part of Our Community We're more than an energy company. Here's what some of our employees are doing in the communities we live and work.

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Join the TEam Eversource A Top Company to Work For Business Insider and PayScale named Eversource one of the top 50 companies in the United States to work for.

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Contractors, Suppliers & More Doing Business with Us A special section of our website with information for builders, contractors, suppliers, landlords, municipal officials, real estate inquiries and more.

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Help With ZIP Codes

To provide you with the best experience possible and ensure we are presenting the correct information to you, our website requires customers enter a ZIP code for their service address.

Example ZIP codes from across our service territory are provided below. You can also visit the U.S. Postal Service's website to look-up a specific ZIP code.

Connecticut – Electric & Gas: 06901
Connecticut – Electric Only: 06101
Connecticut – Gas Only: 06859
New Hampshire – Electric: 03101
Eastern Massachusetts – Electric & Gas: 02090
Eastern Massachusetts – Electric Only: 02115
Eastern Massachusetts – Gas Only: 01603
Western Massachusetts – Electric: 01101

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