Connecticut Heat Pump Rebates
Stackable incentives available to Connecticut homeowners installing a qualifying heat pump in 2026.
Rebate data is re-verified against primary sources every two months.
What's available in Connecticut
Connecticut runs a coordinated statewide heat pump incentive program under the Energize CT brand, jointly delivered by Eversource and United Illuminating and overseen by DEEP and the Connecticut Green Bank. The flagship Energy Optimization rebate (up to $10,000) is the largest, designed for whole-home installs that displace gas, oil, propane or electric-resistance heating; as of September 1, 2026 every qualifying install earns $1,500 per ton (installs from January through August 2026 earned $1,000 per ton unless they qualified for the enhanced electric-resistance or income tier). A separate Residential Air-Source rebate pays $250 per ton up to $2,500 for heat-pump-to-heat-pump replacement, previously unconditioned space, or cooling-only scenarios (not new construction), and ground-source systems pay $1,500 per ton up to $15,000. The federal IRA rebates are still not available in Connecticut — DEEP's program page states that both HEAR and HER rebates are not currently available, pending DOE approval of the state implementation blueprints. The CT Green Bank Smart-E Loan provides low-interest financing; the heat pump special rate is 1.99% APR for the August 1 to December 31, 2026 window on 5-year terms up to $25,000.
HEEHRA in Connecticut
HEEHRA rebate: Point-of-sale rebate up to $8,000 for households at or below 80% of area median income. Funded by the IRA, administered by each state. Connecticut is finalizing program rules.
How heat pump rebates work in Connecticut
Connecticut runs a coordinated statewide heat pump program through Energize CT, jointly delivered by Eversource and United Illuminating and overseen by DEEP and the Connecticut Green Bank. The flagship Whole-Home Energy Optimization rebate pays up to $10,000 ($1,500 per ton for installs completed on or after September 1, 2026; $1,000 per ton for earlier 2026 installs) for whole-home installs that fully displace or integrate with existing oil, propane, natural gas, or electric resistance heating. A separate Residential Air-Source rebate pays $250 per ton up to $2,500 for heat-pump-to-heat-pump replacement, previously unconditioned space, or cooling-only scenarios (residential new construction is not eligible) — but the two tiers are mutually exclusive: a single install qualifies for one or the other, and you can't claim both for the same equipment. Heat pump water heaters carry a $900 instant or downstream rebate for 2026. The federal IRA rebates are NOT yet a Connecticut option: DEEP's own program page states plainly that HEAR rebates are not currently available and HER rebates are not currently available, both still pending DOE approval of the state implementation blueprint. Budget your project on the Energize CT rebates alone, and treat any $8,000 HEAR figure you see quoted for Connecticut as future-state. The CT Green Bank Smart-E Loan provides low-interest financing through participating lenders — the heat pump special rate stepped from 0.99% to 1.99% APR for the August 1 to December 31, 2026 window, on 5-year terms up to $25,000. Because Eversource and UI together serve effectively all of Connecticut, every electric customer in the state has access to the same Energize CT rebate menu.
Connecticut rebate programs
Energize CT Whole-Home Heat Pump (Energy Optimization)
$10,000Whole-home Energy Optimization now pays $1,500 per ton up to $10,000 in combined incentives for all qualifying installations completed on or after 2026-09-01 (installs from 2026-01-01 through 2026-08-31 earned $1,000 per ton, or $1,500 per ton from 2026-04-01 for electric-resistance replacements and households above 60% State Median Income and below 80% Area Median Income). Program runs through 2026-12-31; applications must be postmarked by 2027-02-27. Requires an Energize CT Heat Pump Installer Network contractor, ENERGY STAR Cold Climate certified equipment on the Energize CT Qualified Product List, and replacement of natural gas, oil, propane or electric resistance as the primary heat source.
Energize CT Residential Air-Source Heat Pump Rebate
$2,500$250 per ton up to $2,500 in combined incentives for qualifying air-source heat pumps installed 2026-01-01 through 2026-12-31 when replacing an existing heat pump, conditioning a previously unconditioned space, or for cooling-only use. Residential new construction is explicitly not eligible; installs that replace gas, oil, propane or electric resistance as the primary heat source go through the higher Energy Optimization tier instead. A $500 insulation bonus applies if Home Energy Solutions insulation upgrades were completed within the prior 24 months. Requires an Energize CT Heat Pump Installer Network contractor and ENERGY STAR Cold Climate certified equipment.
Energize CT Heat Pump Water Heater Rebate
$900$900 for qualifying ENERGY STAR heat pump water heaters purchased 2026-01-01 through 2026-12-31 by Eversource or UI residential electric customers. Income-eligible households installing on or after 2026-06-01 can add an enhanced $1,000 incentive for a total of up to $1,900, subject to verification through the Energize CT Income Verification Portal and installation by a licensed contractor.
Energize CT Residential Ground Source Heat Pump Incentive
$15,000$1,500 per ton up to $15,000 for qualifying residential ground source (geothermal) heat pumps, available 2026-01-01 through 2026-12-31 through Energize CT participating contractors.
Energize CT Residential Air-to-Water Heat Pump Incentive
$2,500$250 per ton up to $2,500 in combined incentives for qualifying air-to-water heat pumps installed 2026-01-01 through 2026-12-31 by Eversource or UI residential electric customers. Equipment must be on the Energize CT Heat Pump Qualified Product List and installed by an Energize CT Heat Pump Installer Network contractor. Installs that replace gas, oil, propane or electric resistance as the primary heat source are directed to the $1,500 per ton Energy Optimization tier instead.
5 utility-specific programs not shown here. Enter your ZIP in the calculator to filter to just your utility.
A worked example: oil-to-heat-pump conversion in Hartford
Eduardo owns a 1,800 sq ft single-family home in West Hartford, currently heated by a 28-year-old oil-fired boiler (hydronic baseboards) with no central AC. He's an Eversource electric customer. He gets quotes for a 3-ton ducted air-source heat pump installed with new ductwork (since the existing home is hydronic), full displacement of the oil system, and a NEEP cold-climate certified outdoor unit (Mitsubishi Hyper Heat). Installed cost including ductwork: $24,500. Because this is a whole-home install with full oil displacement, he qualifies for the Energize CT Energy Optimization rebate at $1,500 per ton (the standard rate for installs completed on or after September 1, 2026) — at 3 tons that's $4,500, comfortably under the $10,000 cap. His household income is approximately 75% of Hartford's AMI, which would put him below the 150% threshold for CT HEAR — but HEAR has not launched in Connecticut, and DEEP states the rebates are not currently available, so Eduardo cannot count on that $8,000. His realistic 2026 stack is the $4,500 Energize CT rebate against $24,500. He also has the option of a Smart-E Loan from the CT Green Bank at low interest to finance the post-rebate balance.
Choosing a contractor in Connecticut
Connecticut licenses HVAC contractors statewide through the Department of Consumer Protection — verify license type S-1 (Heating, Piping & Cooling Contractor) at portal.ct.gov. Energize CT rebates require an installer in the Energize CT Heat Pump Installer Network (HPIN); a non-HPIN contractor cannot file the rebate even with qualifying equipment. The HPIN roster is searchable on EnergizeCT.com. For the $10,000 Energy Optimization tier, the contractor must verify that the heat pump fully displaces or integrates with the existing heating system; partial-load installs without backup-heat planning typically default to the $2,500 Residential ASHP tier instead. Confirm the rebate path with your contractor at the quote stage so the right paperwork gets filed.
Common pitfalls for Connecticut homeowners
- Treating Energy Optimization and Residential ASHP as stackable. The two Energize CT tiers are mutually exclusive per install: $10,000 Whole-Home Energy Optimization for full fossil/resistance displacement OR $250-per-ton Residential ASHP (max $2,500) for heat-pump replacement, previously unconditioned space, or cooling-only installs; new construction is not eligible. A single install cannot claim both. Choose the tier that matches your install scenario before filing.
- Skipping cold-climate certification for full-displacement installs. For the $10,000 tier where the heat pump must carry the full heating load through Hartford or New Haven winters, cold-climate certification is not optional: the 2026 Energize CT rebate forms require equipment to be ENERGY STAR Cold Climate certified and listed on the Energize CT Heat Pump Qualified Product List. Non-cold-climate equipment that loses too much capacity at 5°F will require oversized auxiliary resistance heat, which can disqualify the install from the Energy Optimization tier.
Estimate your net cost
Used to determine HEEHRA eligibility (under 80% area median income).
- Energize CT Whole-Home Heat Pump (Energy Optimization)−$10,000
- Energize CT Residential Air-to-Water Heat Pump Incentive−$2,500
- Energize CT Heat Pump Water Heater Rebate−$900
- Energize CT Residential Air-Source Heat Pump Rebateexcluded — pick one: Energize CT Whole-Home Heat Pump (Energy Optimization) wins
Estimate only. Includes only programs accepting applications today — waitlisted or closed programs are excluded. Mutually exclusive programs (e.g. HEEHRA vs HOMES) and project-cost caps are applied per current program rules; confirm with your installer and utility before signing.
How to claim each rebate
- Get pre-approved (where required). Some utility programs require approval before install. Check program details before signing a contract.
- Use a participating contractor. Many programs require a licensed installer from an approved contractor list — especially HEEHRA, which routes through CEC-approved contractors who process the rebate at point of sale.
- Save documentation. AHRI certificate, model numbers, and itemized invoice are required for most utility rebates.
- Submit utility rebate within 60–90 days of install. Some programs are first-come first-served and close mid-year — funding can run out before the calendar year does.
If you can't afford a replacement in Connecticut
Rebates lower the price, but they still assume you can pay the rest. If your heating system is unsafe or has failed and a new one is out of reach, these programs repair or replace equipment at low or no cost for income-qualified households. Heat Pump Pricing Index is an independent information site — we don't fund, discount, or install equipment — so these are the doors to knock on first:
- Weatherization Assistance Program (WAP). Free energy and health-and-safety repairs — an unsafe furnace is exactly the kind of problem it fixes — for households at or near 200% of the poverty line. Apply through your local community action agency: how to apply (energy.gov).
- LIHEAP. Heating-bill help plus, in most states, a crisis component for broken or dangerous heating equipment. Same local agency; Connecticut LIHEAP contacts.
- USDA Section 504 Home Repair. For homeowners outside cities: 1% loans up to $40,000, and grants up to $10,000 for homeowners 62 and older to remove health and safety hazards. Program page and state offices (rd.usda.gov).
- Your utility and 211. Most electric and gas utilities run an income-qualified assistance fund — call the number on your bill and ask. Dialing 211 reaches a local specialist who knows which agencies in Connecticut currently have funds.
Safety first: if a technician has told you a heat exchanger is cracked, stop using the furnace and make sure you have a working carbon monoxide detector before anything else.