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Connecticut · checked October 20, 2026
Air-source heat pump rebates in Connecticut
1 program pays toward an air-source heat pump in Connecticut right now, with 2 separate offers between them. The largest stated amount is $10,000, from Energize CT residential air-source heat pump incentives (Energy Optimization (displacing fossil or resistance heat)). These offers are tied to Eversource and UI customers; the other Connecticut utilities' own programs have not been read yet. The federal 25C credit for this upgrade ended on December 31, 2025, so the state and utility money below is what is left.
What Connecticut pays for heat pumps
Energize CT residential air-source heat pump incentives Open
Run by Energize CT (Eversource, UI) · for customers of 2 utilities · ends December 31, 2026
- Energy Optimization (displacing fossil or resistance heat): $1,500 per ton, up to $10,000 per home, for installs from September 1, 2026
- Standard (replacing a heat pump, new space, cooling only): $250 per ton, up to $2,500 per home
Conditions on the program page: Energize CT Heat Pump Qualified Product List and Installer Network; Energy Optimization: the heat pump fully displaces or integrates with gas, oil, propane or electric resistance as the primary heat; Eversource and UI residential electric customers; Tons = AHRI cooling capacity ÷ 12,000.
Also on the page: Installs January 1 to August 31, 2026 were paid $1,000 per ton, with enhanced $1,500 per ton for some income-qualified and electric-resistance projects from April 1; Smart-E Loan from 1.99% through December 31, 2026; Separate New England Heat Pump Accelerator instant incentives may be offered by distributors.
Source: Energize CT: Residential Energy Optimization incentive; Energize CT: Residential air source heat pump rebate. Last checked October 20, 2026. Official program page.
Worked example: one Connecticut home
Take a 3-ton air-source system (2 outdoor units) replacing oil heat. These are example inputs, not typical prices. Each program's own rule gives the amounts below; where one program has several tiers only the largest one counts, separate programs add up, and a percentage offer with no cost entered is shown at its ceiling.
| Utility | Not income-qualified | Moderate income | Low income | Replacing baseboard |
|---|---|---|---|---|
| Eversource (Connecticut) | $4,500 | $4,500 | $4,500 | $4,500 |
| United Illuminating (UI) | $4,500 | $4,500 | $4,500 | $4,500 |
For a household that is not income-qualified, the example comes to $4,500, made of $4,500 from Energize CT heat pumps (Energy Optimization (displacing fossil or resistance heat)). None of the open offers has a separate income-qualified amount, so every household gets the same figure. All 2 listed utilities come out the same, because the money comes from a shared program.
Who can use these Connecticut offers
Eligibility follows your electric or gas utility. Energize CT heat pumps is open to Eversource and UI customers. Customers of Connecticut Natural Gas (CNG), Southern Connecticut Gas (SCG), Municipal utility are not covered by any open air-source heat pump offer listed here; check with the utility directly. The earliest end date among these offers is December 31, 2026.
Federal credit and state IRA rebates
The Energy Efficient Home Improvement Credit (IRC §25C) paid 30% of cost, up to $2,000 a year (heat pumps, heat pump water heaters, biomass stoves and boilers combined). The IRS page says: “can claim the credit for improvements made through December 31, 2025.” Not allowed for property placed in service after December 31, 2025. Source: IRS: Energy Efficient Home Improvement Credit, 26 U.S.C. §25C, as amended by Public Law 119-21 (July 4, 2025). See what the credit covered and when it ended.
Connecticut HEEHR (formerly HEAR) and HOMES (formerly HER): Not launched. “Rebates will not be available until the programs are launched.” In June 2026 DEEP reported it was “actively reviewing the new guidance” DOE issued on June 1, 2026; no launch date is given. Source: CT DEEP: Inflation Reduction Act Home Energy Rebate Programs (updated July 2025).
How Connecticut compares
2 of the other 14 covered states list a larger top amount for heat pumps. Open elsewhere: Massachusetts $16,000; Rhode Island $11,500; New Hampshire $10,000; Maine $9,000; North Carolina $8,000; Vermont $4,000; California $3,000; Oregon $3,000; Arizona $1,125; Texas $950; Wisconsin $900; Michigan $350; Florida $200. No open, sourced offer is listed in 1 other covered state (Pennsylvania). Compare them on the air-source heat pump rebates by state page.
Other upgrades in Connecticut: heat pump water heater, insulation and air sealing, home EV charger. Background: how rebates stack and the federal credit status.
Rebates are set by each program and can change or close without notice; the program's own page and application decide what is paid. This page is information, not tax, legal or financial advice. Amounts last checked October 20, 2026.