Column Header
Follow us on Facebook! GU on Facebook!
CT Submarine Century

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.

Upcoming Events

The next Holiday Closing will be Monday, May 30, 2016 for Memorial Day

Utility News

Adobe PDF Document Memorial Day Salute to Our Departed Veterans
Adobe PDF Document Groton Utilities Begins Hydrant Flushing May 31
Adobe PDF Document Water, Water Everywhere Family Event
Adobe PDF Document Voltage Conversion Project 2016 - April 4 - 8
Adobe PDF Document Groton Utilities Accepting Nominations For the Jacqueline B. Nixon Community Service Award
Adobe PDF Document Jacqueline B. Nixon Community Service Award Nomination Form
SCAM ALERT - January 21, 2016
Adobe PDF Document Invitation to bid: One (1) 2016 F550 SUPERDUTY CAB & CHASSIS 4x4 WITH DUMP BODY
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

There will be a power outage due to an underground cable failure today. Customers at 1039, 1051 and 1053 Poquonnock Road will be affected. Customers at these addresses should expect to be out of power beginning approximately 9:00 am and will likely be out all day while we repair the service. Thank you for your patience.

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.