Mass Save Rebates Explained
What Mass Save is, how it works, which utilities participate, and how to access rebates for home energy upgrades in Massachusetts.
Mass Save is a statewide energy efficiency program administered by Massachusetts electric and gas utilities. It provides rebates, no-cost home energy assessments, subsidized insulation and weatherization, financing through the HEAT Loan, and rebates for qualifying heat pumps, water heaters, and battery storage. It is not a government agency — it is a program run by participating utilities under oversight from the Massachusetts Department of Public Utilities.
Which utilities participate in Mass Save?
When do you need a home energy assessment?
A no-cost home energy assessment is available to most Massachusetts residents through their utility. For insulation and air sealing rebates, an assessment is typically required. For heat pump rebates, requirements vary by program path (whole-home vs partial-home).
Schedule through your utility's Mass Save program or through the Mass Save website. Assessments are conducted by approved contractors and result in a home report with recommended improvements and rebate eligibility guidance.
Schedule on Mass Save0% financing for eligible improvements
The HEAT Loan offers 0% financing for eligible Mass Save improvements including insulation, heat pumps, and weatherization. Available through participating banks. Loan terms and eligibility are set by lenders, not Mass Save directly. Always read the loan documents — 0% APR may have associated fees depending on the lender.
Not a government website. Rebate rules can change — always verify eligibility with your utility or contractor before assuming you qualify.