Massachusetts pays some of the highest electric rates in America, and it backs solar with real state programs. Rooftop Power has completed 480+ installations across the South Coast, working inside these programs weekly. Here is the honest 2026 picture.
Massachusetts net metering credits your account for the surplus power your system exports, at rates that make a correctly sized system cover a large share of an annual bill. Your summer overproduction banks credits that carry you through the darker months.
Rules vary by utility (Eversource, National Grid and Unitil each administer their own) and by system size, which is one more reason design starts with your actual bills and your actual utility.
The Solar Massachusetts Renewable Target program pays enrolled systems for the energy they produce, on top of the bill savings, under fixed terms once you are in. SMART works on declining capacity blocks, meaning compensation rates step down as each utility’s blocks fill, and program terms have evolved repeatedly since launch.
Translation: what SMART pays depends on your utility and the block open when you enroll, and anyone quoting you a SMART number without checking current block status is guessing. We check, then put the real figure in your written proposal.
Two structural benefits protect the investment itself. Solar equipment purchases are exempt from the state’s 6.25 percent sales tax. And Massachusetts exempts residential solar from property tax assessment for 20 years, so the value the system adds to your home does not raise your tax bill for two decades.
Both are automatic in practice; neither depends on annual funding cycles.
The federal residential tax credit ended for systems placed in service after 2025, and the old Mass Solar Loan program closed to new applications years ago. We name these because stale incentive lists are everywhere online, and a proposal built on programs that no longer exist is not a proposal, it is a trap.
What remains is strong on its own: brutal utility rates to escape, net metering, SMART production payments and two tax exemptions. That is the math we will show you.
Current block status, net metering math and full pricing for your home, in writing, free.
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