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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

Turn off the faucet while brushing teeth or shaving.

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.


There will be an information session regarding the proposed Water Treatment Plant upgrade on Monday, March 13, 2017 in the Municipal Building Auditorium.

Upcoming Events

The next Holiday Closing will be Friday, April 14, 2017 for Good Friday

Utility News

Adobe PDF Document Groton Utilities Accepting Nominations For the Jacqueline B. Nixon Community Service Award
Adobe PDF Document FOURTEENTH ANNUAL Jacqueline B. Nixon Community Service Award Nomination Form
Adobe PDF Document City Cabaret 2017 Presents As Time Goes By
Adobe PDF Document City Cabaret Celebrates Its Twelfth Concert Season
Adobe PDF Document Public Power Fact Sheet
It's time to save money- Competitive Resources
Adobe PDF Document Considering Going Solar? Here is a handy check list
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

You can now pay your Groton Utilities Bill 24/7 by Phone.
Call 860-446-4000 Option 1 or Toll Free 1-844-323-5560 and you will be linked to a secure automated telephone payment system powered by our bill payment partner, Paymentus Corporation.

Please have your seven (7) digit account number, as shown on your bill. If the number in the account number field is only six (6) digits you need to add a "zero" in front of the last number. Example: Account Number: 123456 needs to be entered as 1234506.

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.