What Somerville homeowners can claim
Mass Save funds nearly all residential energy rebates across Massachusetts, including Somerville. All amounts below are in US dollars.
🔥 Heat Pump
$2,650/ton, capped at $8,500, plus sizing and weatherization bonuses. Income-qualified: up to $16,000 (air-source) or $25,000 (ground-source). Only R-32 or R-454B refrigerant systems qualify — R-410A heat pumps are no longer eligible as of January 1, 2026.
🟫 Insulation & Air Sealing
75% covered for all Somerville homeowners. Income-eligible households (under 60% AMI) pay $0.
☀️ Solar (SMART 3.0)
Locked-in production payment for 10–20 years once enrolled.
🔌 Battery Storage
Capacity rebate plus SMART storage adder and annual ConnectedSolutions payments.
🟩 Windows & Doors
Replace single-pane windows with ENERGY STAR Most Efficient certified windows. Windows & insulation →
🚘 EV Charger
Toward purchase and installation of a qualifying Level 2 home EV charger. EV charger rebates →
📋 Home Energy Assessment
Required first step to confirm what you qualify for.
How to claim it
- Schedule your free Mass Save home energy assessment
- Get quotes from Mass Save-participating contractors in Somerville
- Work is installed
- Contractor or you file the rebate paperwork with Mass Save
- Rebate is applied at point of sale or reimbursed within weeks
Other Massachusetts cities
Boston Worcester Springfield Cambridge
Renting or living in a condo in Somerville? Here's what applies to you
Most of the rebate figures above assume you own a single-family home and control the whole building. That's not most of Somerville, one of the densest cities in Massachusetts. Here's what changes if you rent or own a condo unit:
- If you rent: The structural rebates (heat pump, insulation, windows, solar) go to whoever owns the property, not you. A free smart thermostat installed during a home energy assessment is often still available to renters — ask when you book. For the bigger upgrades, point your landlord to this page.
- If you own a condo unit: In-unit upgrades you control yourself, like a heat pump water heater or an in-suite heat pump, may still qualify for the rebates above, usually with your building's approval for anything touching shared systems or exterior walls.
- If it's a whole-building retrofit: Heat pumps, insulation, and solar for an entire condo or multi-family building go through a separate Mass Save multi-unit program rather than the single-family numbers above. Your condo board or property manager applies, not individual owners.
Next steps
View all Massachusetts rebate programs → or read our heat pump buyer's guide →