Programs for Groton Utility Customers


Groton Utilities residential Home Energy Savings Program provides a free comprehensive in-home energy assessment service for your dwelling which may include the following services:

  • Air sealing to prevent drafts and leaks in the house
  • Duct testing and sealing
  • Installation of low-flow shower heads and faucet aerators to save water
  • Installation of energy-efficient LED light bulbs
  • Incentives for insulation upgrades


To arrange an in-home appointment, call Groton Utilities contractor Lantern Energy Direct at 877-878-3006.


After efficiency, the next step is to weatherize the envelope of your home. Groton Utility’s attic insulation rebate is up to $2 (R-38) or $2.50 (R-49) per Square Foot with a maximum of $5000 for single family residences and a maximum of $2000 for apartments and condominiums.

What is a heat pump

Heat Pumps

The final step is to consider installing heat pumps. Heat pumps are the most efficient heating and cooling systems on the market. For some homeowners, a heat pump may provide significant savings while also making the indoor environment more comfortable.

Homeowners that currently use electric resistance heating are certain to see reduced electricity costs. Homes that are heated with oil are also potentially good candidates. Learn more about heat pumps here and about incentives at

Groton Utilities offers a rebate for air source mini split heat pumps up to $5,000 per compressor. Maximum of $100,000 per customer.