SOLAR PANELS IN MASSACHUSETTS: THE COMPLETE HOMEOWNER GUIDE
Massachusetts has some of the highest electricity rates in the country. Here's everything you need to know about going solar in the Bay State.
Why Homeowners in Massachusetts Are Going Solar
Massachusetts consistently ranks among the top states for solar adoption, and for good reason. Electricity rates here are among the highest in the nation, meaning every kilowatt-hour your panels produce translates directly into real savings on your monthly bill.
The state also offers one of the most generous solar incentive packages in the country, with multiple programs that work together to lower your costs and generate ongoing income from your system.
And with Massachusetts committed to ambitious clean energy goals, going solar here means contributing to a cleaner grid for the entire region.
These factors consistently deliver payback periods in the range of seven to eight years on systems warrantied for 25, making Massachusetts one of the most financially rewarding states in the country to go solar.
Sources: U.S. Energy Information Administration (EIA) — Electric Power Annual & Electric Power Monthly · EnergySage Massachusetts Electricity Cost Report (March 2026) · ElectricChoice.com State Rate History · 2026–2031 projected at EIA-documented 3.8%/yr historical MA rate of increase · Data reflects average annual residential retail rates (¢/kWh)
What Are the Electricity Rates in Massachusetts?
Massachusetts is one of the most expensive states in the country for electricity, and the gap with the national average keeps growing. The average residential rate in Massachusetts is roughly 43% higher than the national average. Massachusetts ranks among the five most expensive states in the nation for residential electricity.
As the chart above shows, this is not a new problem. Over the past 25 plus years, the average residential electric rates in Massachusetts continue to rise.
For homeowners, this is the core argument for solar. Every kilowatt-hour your panels produce is a kilowatt-hour you do not buy from the grid. And every time rates go up, your solar system becomes more valuable. Installing solar does not just lower your bill today. It locks in your cost of electricity, regardless of what the utilities decide to charge.
What Are the solar incentives in Massachusetts?
Massachusetts offers one of the strongest state-level incentive packages in the country. These programs stack on top of each other, so you benefit from all of them at once.
State Income Tax Credit. A dollar-for-dollar credit worth 15% of your installation cost, up to $1,000, applied directly against your Massachusetts state tax bill.
SMART 3.0 Program. The state pays you $0.03 per kilowatt-hour for every unit of electricity your system produces for 20 years, on top of whatever you are already saving on your electric bill.
Net Metering. Excess power your panels send to the grid earns you full retail-rate credits on your electric bill, which roll over month to month indefinitely.
Sales Tax Exemption. Solar equipment is fully exempt from the state's 6.25 percent sales tax, saving roughly $1,250 on a typical system with no application required.
Property Tax Exemption. Your system is exempt from local property taxes for 20 years, even as it increases the value of your home.
How Solar Works in Massachusetts with net metering
How solar works with your utility depends on who your electricity provider is. In Massachusetts, the three major investor-owned utilities — Eversource, National Grid, and Unitil — are all required to offer net metering to residential solar customers.
Net metering means any excess electricity your panels produce gets credited to your account at near-retail rates. When your panels produce more than you use (typically on sunny summer days), those credits bank and offset your bills during lower-production months.
If you're served by a municipal light plant, net metering policies may vary. Contact your provider directly or ask us during your consultation and we'll help you navigate it.
Does Solar Work in Massachusetts Weather?
Yes, and better than most people expect. Massachusetts gets over 200 sunny days per year, which is more than enough for solar to perform well. Panels generate power from daylight, not just direct sun.
Weather concerns are largely a myth. Solar panels actually perform more efficiently in cooler temperatures. While summer drives peak production, systems generate energy year round.
Snow may temporarily reduce output, but it usually melts or slides off quickly. Any seasonal dips are balanced by net metering credits built up during sunnier months.
Frequently Asked Questions
Still have questions about going solar in Massachusetts? Take a look at the FAQ or reach out anytime.
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Savings depend on your home, energy usage, and system size, but most homeowners significantly reduce or even eliminate their electric bill. With high utility rates in Massachusetts, solar typically delivers strong long-term savings.
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Through net metering, excess energy your system produces is sent back to the grid and credited to your account. These credits can be used to offset your bill during months when your system produces less.
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The full process typically takes a few weeks to a couple of months, depending on permitting and utility approvals. The actual installation on your home usually takes just 1 to 2 days.
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Costs vary based on system size and home setup, but most homeowners go solar with little to no upfront cost using financing options. Incentives and tax credits also significantly reduce the overall investment.
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It’s possible. Homes with solar are often more attractive to buyers and can sell for more. Buyers are drawn to the long-term energy savings and lower utility costs.
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If your roof is older, it is usually best to replace it before installing solar. Ask us about bundling roofing and solar into one project.