The exclusion nobody explains clearly
Mass Save is funded through a charge on customer bills from Massachusetts's investor-owned utilities — Eversource, National Grid, Unitil. Towns that run their own municipal light plant (MLP) — a town-owned electric utility — sit entirely outside that funding structure. Forty-one Massachusetts communities fall into this category, including Concord, Shrewsbury, Reading, Wellesley, Belmont, Braintree, Hingham, Holyoke, Chicopee, Westfield, Taunton, and Middleborough, among others.
If you live in one of these towns, you cannot access Mass Save's electric-side rebates — the heat pump rebate, the insulation program, none of it — no matter how badly you want to.
Why this stays hidden
Most Mass Save marketing and third-party content talks about the program as if it covers "Massachusetts," full stop. It doesn't. Nobody selling heat pumps has an incentive to tell a Concord homeowner mid-quote that the rebate they're expecting doesn't apply to their address — by the time that comes up, they've already spent an hour on the phone.
What you can actually get instead
- Gas-side Mass Save benefits — if your gas comes from an investor-owned utility even though your electricity doesn't, you may still get a free assessment and weatherization help.
- Your MLP's own program — many run their own incentives through Energy New England or MMWEC. Amounts vary widely by town.
- The Municipal Light Plant Zero-Interest Loan — a state program built specifically for this gap, up to $25,000 at 0% interest.
- NextZero battery rebate — $100/kWh, the MLP equivalent of the investor-owned utility battery incentive.
More rebate reality checks
- Alberta's Heat Pump Program Got 16 Applications. One Was Approved.
- Canada's Home Energy Rebate Report Card: Every Province Graded
- Nova Scotia Had Canada's Best Heat Pump Rebate. It Quietly Vanished.
- "Holding My Money Hostage": Inside the Mass Save Complaints
- Which Provinces Are Advancing on Electrification — and Which Gave Up
- California's Solar Rebate Is Famous. It's Also Closed.
- The $100 Alberta "Energy Rebate" Isn't What You Think