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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

Drain a quart of water from your water tank every 3 months to remove sediment that impedes heat transfer and lowers the efficiency of your heater.

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 are currently no notices.

Upcoming Events

The next Holiday Closing will be Monday, May 29, 2017 for Memorial Day

Utility News

Adobe PDF Document 2017 - Hydrant Flushing Schedule
Adobe PDF Document Invitation to Bid, 2017 41,000 GVWR Single Axle Dump Truck
Adobe PDF Document Invitation to Bid, Ford F-450 Super Duty Cab & Chassis Supercab with utility body
Adobe PDF Document Invitation to Bid, 2017 4x4 Super Cab Pickup Truck
Adobe PDF Document Invitation to Bid, 2017 4-Wheel Drive Pickup Truck with Utility Body (3/4 ton)
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 Public Power Fact Sheet
Adobe PDF Document Considering Going Solar? Here is a handy check list
Adobe PDF Document Storm Preparation: Lesson Learned - Start Early
The Benefits of Public Power (Video)
It's time to save money- Competitive Resources
SCAM ALERT - January 21, 2016
Shut-Off Notice Alert
Use Water Wisely
Current Purchased Power Adjustment & Transmission Cost Adjustment Rates
Groton Utilities Honored With National Award For Reliable Electric Operations

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.