Energy Efficiency Rebates

(Electric and Gas) Residential Rebate Program

United Illuminating Co residential energy efficiency rebate program

program summary

The Energize Connecticut (CT) program is a joint initiative between the CT Energy Efficiency Fund, CT Green Bank, the State of CT and local/state electric and gas utilities designed to provide businesses and residents of CT access to resources needed to save energy. Within this program are rebates offered for Eversource, United Illuminating (UI), CT Natural Gas (CNG), and Southern CT Gas Company (SCG) customers.

Electric customers of Eversource and UI are eligible for electric equipment rebates funded by the Combined Public Benefits Charge, while customers of CNG, SCG, and Eversource receive rebates funded through a conservation charge included in rates. Rebates are available through the Energize CT program for energy efficient HVAC equipment, programmable thermostats, natural gas (NG) boilers and furnaces, water heaters, home efficiency improvements, lighting and appliances. Eligibility for certain rebates may vary dependent upon which utility a customer uses and can be offered as either an instant rebate or mail-in. Instant rebates vary by utility and can only be received if a qualified contractor purchases eligible equipment. Mail-in rebates must have a Home Energy Assessment prior to installation of equipment.


eligible technologies
Boilers, Duct/Air sealing, Furnaces, Geothermal Heat Pumps, HVAC, Heat pumps, Insulation, Pool Pumps, Programmable Thermostats, Tankless Water Heater, Water Heaters, Windows
list of rebates
- Flat rebate of $200 (Air conditioners)
- Flat rebate of $750 (Boilers)
- Flat rebate of $650 (Furnaces)
- Maximum rebate of $1500 per Unit (Geothermal Heat Pumps)
- Flat rebate of $750 per ton (Heat pumps)
- Flat rebate of $1.7 per square foot (Insulation)
- Flat rebate of $85 per Unit (Programmable Thermostats)
- Flat rebate of $300 per Unit (Tankless Water Heater)
- Maximum rebate of $750 per Unit (Water Heaters)
program notes
2024-05-30 13:24:53
Annual review. Updated incentives
2022-07-08 18:32:45
Updated program incentives, offerings, summary and links.
2019-06-11 15:02:31
Annual review, updates to incentives.
2015-04-17 20:36:45
Incentive might vary between the participating utilities. Please confirm with your utility before purchasing the equipment.