Massachusetts pays some of the highest electric rates in America, and it backs solar with real state programs that are still funded in 2026. Rooftop Power has completed 480+ installations across the South Coast and works inside these programs every week. Here is the honest picture, with the federal change named plainly and the state math laid out the way we would show it in your proposal.
Net metering is the mechanism that lets a correctly sized Massachusetts system cover a large share of an annual bill. When your panels produce more than the house is using, that surplus flows to the grid and your utility credits your account. When you pull power at night or in winter, those banked credits offset what you owe. It is the bridge between a sunny July afternoon and a dark February evening.
In our territory that means Eversource and National Grid, the two utilities that serve almost every home we install for on the South Coast (Unitil covers a small northern slice of the state). Each one administers its own net metering under state rules, and each meters and credits a little differently, which is one reason we design around your actual bill and your actual utility rather than a regional average.
The value of a net metering credit tracks the retail rate you would otherwise pay, so as Massachusetts supply and delivery charges climb, the credits your roof earns are worth more, not less. That is the quiet part of the math: net metering does not just offset today’s bill, it hedges you against every rate increase the utility files for the next 25 years.
There is a cap on how much net metering capacity each utility must accept, and program rules have shifted over the years. We confirm that your system qualifies and how your specific utility will credit it before we put a production estimate in front of you.
The Solar Massachusetts Renewable Target, known as SMART, is what sets Massachusetts apart from most states. On top of the bill savings from net metering, SMART pays enrolled systems a per-kilowatt-hour incentive for the energy they generate, for a fixed term that locks in the day you enroll. It is a production payment, not a one-time rebate, and it runs for years.
SMART is built on declining capacity blocks. Each utility territory has a series of blocks, and every block is assigned a compensation rate. As homeowners and businesses fill a block, it closes and the next one opens at a lower rate. The program has moved through many blocks and several rule updates since it launched, so the rate a neighbor locked in two years ago is not the rate open today.
That is why a straight answer matters here. Anyone who quotes you a SMART figure without checking the current open block for your exact utility is guessing. We pull the live block status for Eversource or National Grid, apply it to your system’s estimated production, and put the resulting number in your written proposal so you are enrolling against a real rate, not a sales pitch.
SMART does not just pay for solar production. It pays a higher rate when you pair the system with a battery. Add qualifying storage and your enrolled system earns a storage adder on top of the base SMART compensation, for the full term, which is one of the few places where a battery pays you back through a program rather than only through backup power.
The size of that adder depends on the battery relative to your solar array, roughly its usable energy and how much power it can deliver, so the incentive scales with a properly matched battery rather than an oversized one bolted on for show. The state structured it this way to reward storage that actually helps the grid at peak times, not just any battery in a garage.
For a Massachusetts homeowner that means a battery can do three jobs at once: keep your essential circuits running when Eversource or National Grid goes down, store your own cheap daytime solar for use at night, and raise your SMART payment for years. We model the storage adder against the battery you are actually considering so you can see whether it pays for itself or is better added later. We will tell you honestly which one your home is.
Beyond the programs that pay you, Massachusetts has two structural benefits that quietly protect the money you put into a system. First, solar equipment is exempt from the state’s 6.25 percent sales tax, so the hardware costs less at purchase than a taxable improvement of the same price would.
Second, and bigger over time, Massachusetts exempts residential solar from property tax assessment for 20 years. Solar reliably raises a home’s value, but this exemption means that added value does not raise your property tax bill for two decades. You capture the resale upside without paying more to the town every year for it.
Both are effectively automatic in practice and neither depends on an annual funding cycle or an open enrollment block the way SMART does. They are the steady, boring part of the Massachusetts picture, and boring is exactly what you want from a benefit you are counting on for 20 years.
How you pay changes who captures the SMART payments and the net metering credits, so it is worth understanding before you sign anything. Rooftop Power offers four paths, and three of them start with no money out of pocket. We walk through all four with your real numbers, never just the one that pays us most.
A solar loan lets you own the system and everything it earns, including the SMART production payments and net metering credits, while spreading the cost over time. Paying cash owns it outright for the strongest long-term position. A power purchase agreement, or PPA, means you pay only for the power the panels produce at a set rate per kilowatt hour. A lease is a fixed monthly payment for the equipment itself.
The right answer depends on whether you want ownership and the program income that comes with it, or the simplicity of a predictable monthly payment with someone else handling the paperwork. We show all four side by side, in writing, with the Massachusetts programs already factored in, so you are choosing with open eyes rather than reacting to a monthly number in isolation.
Honesty means naming what ended, not just what pays. The 30 percent federal tax credit ended for systems placed in service after 2025, so any Massachusetts proposal that still leans on it as a current benefit is selling you the past. Be careful with any company that leads with it in 2026.
The old Mass Solar Loan program also closed to new applications years ago, and it still shows up on stale incentive lists all over the internet. A proposal built on a program that no longer accepts applicants is not a proposal, it is a trap, and it usually means the salesperson has not checked their own numbers in a long while.
Here is the reassuring part: the Massachusetts math never depended on the federal credit to work. What remains is genuinely strong on its own. You have some of the highest utility rates in the country to escape, net metering that grows more valuable as those rates climb, SMART production payments with a storage adder, and two long tax exemptions. That is the real 2026 case, and it is the only one we will show you.
Massachusetts incentives rarely stand alone. The homeowners who get the most out of SMART usually pair the right hardware with the right financing, and they start from the full case for going solar in the first place. Here is where to go next.
The piece that unlocks the SMART storage adder and keeps your essentials running through outages.
Learn MoreLoan, cash, PPA and lease, three with nothing down, mapped against your Massachusetts numbers.
Learn MoreThe full honest case for New England homeowners, from rising rates to today’s technology.
Learn MoreCurrent block status, net metering math and full pricing for your home, in writing, free. Call 401-298-8040.