Cities / Connecticut / Rebates

United Illuminating Energy Optimization: Open

Enrollment for 2026 is open. Open. Incentive Duration: 01/01/26 - 12/31/26.

Serves: Ansonia, Derby, East Haven, Hamden, Milford, New Haven, North Branford, North Haven, Orange, West Haven, Woodbridge, Bridgeport, Easton, Fairfield, Trumbull, Shelton and Stratford.

Do I Qualify

  • Have UI residential electric service at an existing home.
  • Displace another primary heating fuel.
  • Use approved equipment, a participating installer and required integrated controls.

How Much Comes Off

United Illuminating Energy Optimization — program page · rebate chart
EquipmentRequirementAmount
Central ducted air source heat pumpENERGY STAR Cold Climate certified; qualifying primary heat replacement; installed on or after September 1, 2026$1,500 per ton
Ductless air source heat pumpENERGY STAR Cold Climate certified; qualifying primary heat replacement; installed on or after September 1, 2026$1,500 per ton
Central ducted heat pump installed before SeptemberQualifying installations completed January 1 through August 31, 2026$1,000 per ton
Ductless heat pump installed before SeptemberQualifying installations completed January 1 through August 31, 2026$1,000 per ton
Insulation and Heat Pump BonusHome Energy Solutions insulation within 24 months before or 6 months after qualified heat pump installation$500 per qualified heat pump installation

Valid from January 1, 2026 to December 31, 2026.

Who Files It

The customer submits the signed application with the final paid invoice.

The provider pays either the contractor or the homeowner.

The Steps to Apply

  1. Confirm equipment and heating displacement eligibility.
  2. Apply by February 27, 2027. Application.

Read on October 22, 2026 from the United Illuminating page. The chart was printed Rev. 09/26. A change to this program is a dated line in the changelog.