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Groton Utilities is a municipally owned and operated utility providing Electric and Water services to thousands of consumers in Southeastern Connecticut.

Conservation Tips

Take more showers than baths. Bathing uses the most hot water in the average household. You use 15 � 25 gallons of hot water for a bath, but less than 10 gallons during a 5-minute shower.

Click here for more conservation tips

As a leader in Southeastern Connecticut, we provide essential electric, water and other services at prices which reflect exceptional customer value and quality. We enhance and support the vitality and livability of the communities we serve.


Groton Utilities is in the process of converting street lights over to LED bulbs. Tanko Lighting Company will be auditing the street lights in town beginning Tuesday June 28th. Please be aware that this is an approved contractor.

Upcoming Events

The next Holiday Closing will be Monday, October 10, 2016 for Columbus Day

Utility News

RFP# GU-16-P1, Interior Renovation of Office Space for Bid
Adobe PDF Document Considering Going Solar? Here is a handy check list
Jacqueline B. Nixon Community Service Award Presented to Charlie Ebbinghaus
Adobe PDF Document Groton Utilities Water Rates Increase July 1
SCAM ALERT - January 21, 2016
The Benefits of Public Power (Video)
Adobe PDF Document Storm Preparation: Lesson Learned - Start Early
Shut-Off Notice Alert
Use Water Wisely
Current Purchased Power Adjustment & Transmission Cost Adjustment Rates

Current Warnings

Pride in Public Power!

At your service since 1904

Adobe PDF Document Public Power Fact Sheet
Listen to the radio commercial

Updated as of January 21, 2016

PHONE SCAM: Callers claiming to represent Groton Utilities and/or the City of Groton and asking for payment in order to avoid utility service termination. The callers target local residents / businesses and request payment directly with the caller.

DO NOT give ANY information to anyone on the phone before assuring that the call is legitimate. Groton Utilities does not use any type of 800 number. Don't assume the call is from Groton Utilities / City of Groton by the Caller ID only. Please contact GU at 860-446-4000 to verify the legitimacy of a call.


Please be aware that Groton Utilities billing address has changed.

PO BOX 4109
WOBURN MA 01888-4109

If you have automatic bill pay through your Financial Institution or Another Automatic Bill Pay Service, you need to change the billing address to: PO BOX 4109 WOBURN MA 01888-4109. Payments being sent to the Hartford, CT address will continue to be processed until February 1, 2014.