Geothermal Heat Pump Rebate for Existing Homes

The Geothermal Heat Pump rebate for existing homes is made possible by Energize Connecticut and administered by CL&P. Qualified rebates are $500 per rated cooling tons and $1,500 maximum per home.  


Geothermal Picture 

Why Go Geothermal?

Geothermal energy encourages conservation of natural resources. According to the U.S. Environmental Protection Agency, geothermal systems can save homeowners 30-70 percent in heating costs, and 20-50 percent in cooling costs, compared to conventional systems. Geothermal systems save money because they require minimal maintenance, are highly reliable and are built to last for decades.

Geothermal heat pump systems are extremely safe and quiet. There is no exposed outdoor equipment, such as fuel tanks or gas lines, or chimneys. With no direct emission and fewer moving parts, these systems are reliable, low maintenance and environmentally friendly.

Substantial incentives make now the perfect time to increase your energy savings with a geothermal heating and cooling system. Homeowners who install a system may be eligible for a rebate from Energize Connecticut and manufacturer incentives. Your savings can really add up when further combined with federal tax credits for qualifying ENERGY STAR® equipment and Energize Connecticut energy efficiency programs such as Home Energy Solutions. New homes are an especially good opportunity for installation of geothermal heat pump technology. The program requires your new or greater than 50 percent renovated home to meet ENERGY STAR Homes requirements. See the Residential New Construction program page at the link below for more information.

Ensuring your existing home is a good energy performer is essential to capturing the values of safety, comfort and energy savings on installation of any heating and cooling equipment. This rebate requires you to have a home energy assessment and to have your home meet minimum program performance requirements (see geothermal eligibility application below). Energize Connecticut's Home Energy Solutions program will provide you with this assessment and can guide you in meeting these requirements with installed sealing measures and many other valuable incentives.

Installed equipment must meet minimum ENERGY STAR® tier III efficiency and be listed in the American Heating and Refrigeration Institute (AHRI) directory as an assembled and matched system. Installed systems must also pass a performance evaluation completed by your installer. All installed systems must qualify for an incentive payment. Financing is available through some manufacturers and through the Connecticut Housing and Investment Fund at favorable loan rates with repayment options through your utility bill.  Here are the helpful links to begin:

Resource Links:

To set up your Home Energy Solutions energy assessment: 

Information on the Residential New Construction program: 

Geothermal eligibility application: 

Locate an installer: 

Verify that your equipment qualifies: 

Qualify for financing: 

Learn more about technology and federal incentives: 

 Manufacturers of Geothermal Heat Pumps:  


For more information, call 1-877-WISE-USE (1-877-947-3873).