Energize CT Programs

    Air Source Heat Pump Rebates & Incentives

    Connecticut's Residential Energy Optimization Incentive now pays $1,500 per ton, up to $10,000 when a qualifying heat pump replaces natural gas, oil, propane, or electric resistance heat. Available through December 31, 2026, and stackable with 1.99% Smart-E financing.

    (203) 427-7489

    What Is an Air Source Heat Pump?

    An air source heat pump extracts heat from outdoor air to warm your home in winter and reverses the process to cool it in summer. Instead of burning fossil fuels, it uses a refrigerant cycle powered by electricity - delivering 2–3× more energy than it consumes.

    Year-Round Comfort

    Heating, cooling, and dehumidification in one system

    2–3× More Efficient

    Moves 2–3 units of heat for every unit of electricity used

    Lower Carbon Footprint

    Significantly fewer greenhouse gas emissions than oil or propane

    Flexible Installation

    Ductless mini-splits or ducted systems - works with any home

    Residential Incentives

    For single-family homes (1–4 units)

    Residential Energy Optimization Incentive

    $1,500 per ton

    Up to $10,000 in combined incentives per home. Program runs 01/01/26 - 12/31/26.

    • For qualifying air source and air to water heat pumps replacing natural gas, oil, propane, or electric resistance heat
    • Installations on or after September 1, 2026 receive the full $1,500 per ton (installs from January 1 through August 31, 2026 were $1,000 per ton)
    • Residential electric customers of Eversource or United Illuminating
    • Equipment must be on the Energize CT Heat Pump Qualified Product List and installed by an Energize CT Heat Pump Installer Network contractor - CellSun is HPIN approved
    • Tonnage is based on AHRI cooling capacity (1 ton = 12,000 BTUs)

    Standard Air Source Heat Pump Incentive

    $250 per ton

    Applies when you are replacing an existing heat pump, adding heat to an unconditioned space, or installing for cooling only.

    Before You Install

    • Pre-verify your rebate before installation. This is required if you plan to use the Smart-E Loan heat pump offer.
    • Projects are randomly selected for inspection. Skipping a required inspection forfeits the rebate.
    • Weatherize first so your system can be sized correctly.

    Residential Financing Options

    Smart-E Loan

    Low-interest fixed-rate financing through CT Green Bank on qualifying heat pump loans.

    View current rates

    Micro Loan

    Smaller financing option for targeted heat pump upgrades and improvements.

    Multifamily Incentives

    For properties with 5 or more housing units

    Market Rate Properties

    • Up to $250/ton - replacing existing heat pumps
    • Up to $1,000/ton - displacing electric resistance, oil, or propane
    • Up to $750/ton - displacing natural gas
    • Up to $500/unit - packaged terminal heat pumps
    • Central systems: up to $1,500/ton

    Income-Eligible Properties

    • Up to $500/ton - replacing existing heat pumps
    • Up to $1,875/ton - displacing electric resistance, oil, or propane
    • Up to $750/ton - displacing natural gas
    • Up to $750/unit - packaged terminal heat pumps
    • Central systems: up to $1,750/ton

    Commercial Incentives

    For businesses and commercial properties

    Energy Optimization Incentive

    Up to $1,650 per ton

    Combined incentives for qualifying commercial heat pump models

    Commercial Financing Options

    C-PACE

    Commercial Property Assessed Clean Energy financing

    National Energy Improvement Fund

    Dedicated energy improvement lending

    Small Business & Municipal Loans

    Specialized programs for small businesses and municipalities

    Tips Before You Install

    Weatherize First

    Seal and insulate your home before installing a heat pump. A tighter, well-insulated home improves comfort, reduces energy costs, and may allow you to install smaller, less expensive equipment.

    Understand Electrical Usage

    Heat pumps run on electricity, which will increase your electric bill. However, this is typically offset by significant savings on oil, propane, or gas heating costs.

    Quality Installation Matters

    Heat pumps perform best when correctly sized and designed for your space. Work with a qualified contractor from the Energize CT Heat Pump Installer Network.

    Ductless or Ducted?

    Ductless mini-splits are ideal for homes without existing ductwork. Ducted systems use your existing ducts to distribute conditioned air throughout your home.

    Ready to Save With a Heat Pump?

    As an authorized Energize CT contractor, CellSun Home handles the entire process - from selecting the right system to applying your rebates automatically at install.

    Visit Energize CT