Are Solar Panels Worth It in Massachusetts in 2026?

If you asked this question last year, the honest answer leaned heavily on a 30% federal tax credit. That credit is gone. The IRS is direct about it: the residential clean energy credit under Section 25D is not available for any solar property placed in service after December 31, 2025, and that applies to when your system is actually installed and turned on, not when you signed a contract. Source: IRS, Residential Clean Energy Credit.

So if you’re reading last year’s “is solar worth it in Massachusetts” article, or one still quoting a lifetime savings number that assumes that credit, you’re working from math that no longer applies. This isn’t that article. We’re not going to hand you a payback period or a lifetime dollar figure either, because we can’t verify one honestly right now and neither can anyone else publishing that kind of number without a visible source. What we can do is walk through exactly what changed, what’s still on the table, and what questions actually determine your answer. Then you can run your own numbers with real information instead of a marketing estimate.

What actually changed for Massachusetts solar in 2026

One thing changed federally, and it’s a big one: the 30% Residential Clean Energy Credit is finished for any system placed in service after 2025. A system that gets installed and turned on in 2026 does not qualify, period, regardless of when the contract was signed. There’s no phase-out, no partial credit, no grace window.

That’s the whole federal story. Nothing else about the federal incentive landscape changed, because there wasn’t much else to change.

What didn’t disappear is everything at the state level: Massachusetts electricity rates, the state’s own SMART program, a state income tax credit, and net metering. None of those depend on the federal credit, and none of them went anywhere when it did. The rest of this article is about what those actually are, with a source next to every number.

What Massachusetts electricity really costs right now

Start with the number that actually drives the decision: what you’re paying today.

The U.S. Energy Information Administration tracks state-level electricity prices every month. The most recent figure for Massachusetts residential customers is 29.61 cents per kilowatt-hour, for June 2026. Source: EIA Electric Power Monthly, Table 5.6.A.

We’re not going to tell you rates have been climbing in a straight line, because the most recent EIA comparison doesn’t support that. That same June 2026 figure is actually slightly lower than June 2025’s 30.33 cents per kilowatt-hour. If a page tells you Massachusetts rates have risen some clean percentage every year for the last five years, ask where that number comes from. We couldn’t verify one, so we’re not printing one.

What we can verify are specific, dated events. National Grid Massachusetts electric supply charges rose roughly 300% from mid-2022 into the winter of 2022 and 2023, driven by the natural gas price spike that followed Russia’s invasion of Ukraine. Eversource’s Massachusetts supply rates rose roughly 170% over that same window. Source: Third Way, citing utility filings. More recently, Eversource’s Western Massachusetts basic service rate moved from about 11 cents to 13.49 cents per kilowatt-hour effective August 1, 2025, and National Grid’s basic service rate moved from 14.7 cents to 15.5 cents. Source: Western Mass News, reporting the utilities’ own filings.

Put those two facts together honestly: Massachusetts electricity has had real, sharp, documented spikes, and the most recent blended figure has actually eased slightly. Volatile is the accurate word, not “always rising.” Either way, 29.61 cents per kilowatt-hour is what you’re paying the utility today for power you didn’t generate. Solar with financing lets you pay for power differently, generally for less than that per-kilowatt-hour rate, though the actual number depends on your roof, your usage, and your financing terms. Ask for the numbers on your roof, not a statewide average.

SMART 3.0: what’s still on the table after the federal credit

Massachusetts runs its own solar incentive program independent of anything the federal government does, and it’s open right now.

SMART 3.0, run by the state’s Department of Energy Resources, began accepting Program Year 2026 applications on January 1, 2026. For residential systems up to 25 kW AC, the flat incentive rate is $0.03 per kilowatt-hour. For qualifying low-income households, it’s $0.06 per kilowatt-hour. Source: Mass.gov, SMART 3.0 program details.

Here’s the detail almost nobody publishes, and it matters: DOER is still issuing Preliminary Statements of Qualification, but it is not currently issuing Final Statements of Qualification, because the underlying tariff hasn’t been approved yet. SMART payments are not backdated to your project’s commercial operation date. Your 20-year tariff term, and your actual payments, start after that approval and after your project gets its Final Statement. In plain terms: the program is open, applications are moving, but the money isn’t flowing yet for new projects, and it won’t be backdated once it does. If a proposal treats SMART income as already in hand, ask exactly where your specific project sits in that sequence.

The Massachusetts state solar tax credit, and the roof detail nobody flags

Separate from SMART, Massachusetts offers a state income tax credit for residential solar, under regulation 830 CMR 62.6.1. It’s worth 15% of your net expenditure on the system, or $1,000, whichever is less. It can’t exceed your actual state tax liability for that year, and if you can’t use the full amount, it carries forward for up to three years. Source: Mass.gov, 830 CMR 62.6.1, Residential Energy Credit. It applies to your principal residence, and joint owners or condo and co-op owners share a single $1,000 limit per home.

Because it’s a credit against your equipment expenditure, it applies to cash and loan purchases, where you own the system, not to a lease or a power purchase agreement, where a company owns the equipment and sells you the power it produces.

Now the detail worth knowing before anyone assumes it applies to their whole project: the regulation states, in its own language, that portions of a structure serving a dual purpose along with energy transmission, including roofs, are not solar energy property. If your project is a roof replacement done together with solar, as many Massachusetts projects are, the roof portion of that project does not qualify for this credit. Only the solar equipment itself does. That’s not a reason to skip the credit, it’s a reason to ask your installer exactly which part of your invoice it applies to before you count it toward your total.

Net metering in 2026: a real credit, with an open question attached

When your solar system produces more power than your house is using, that excess exports to the grid, and Massachusetts credits you for it through net metering. For a typical residential system under 25 kW, that’s a Class I system, and it’s credited without the kind of waitlist some states impose.

What we won’t do here is print a specific cents-per-kilowatt-hour export value, because the value of that credit is tied to an open regulatory proceeding at the Massachusetts Department of Public Utilities, docket 25-200, examining potential changes to how those credits are calculated. As of when this was written, no change had been adopted, but a live docket can move. Ask your installer for the current, utility-specific export value at the time you sign, not a number pulled from a page written months earlier.

Cash, loan, or PPA: how the math changes with each

Massachusetts solar gets financed three main ways, and the state and federal rules above land differently on each one.

Pay cash, and you own the system outright from day one. You’re eligible for the state tax credit described above, on the solar equipment itself, and you keep 100% of whatever SMART and net metering credits the system earns.

Finance with a loan, and you still own the system, you’re just paying it off over time instead of upfront. Same eligibility for the state tax credit and the same SMART and net metering treatment as a cash purchase, with a monthly payment instead of one lump sum.

Sign a lease or a power purchase agreement, and a company owns the equipment. You pay for the power it produces, generally at a lower rate than utility power, instead of owning the hardware. That structure doesn’t qualify for the state equipment tax credit, because you don’t own the equipment, but it also typically means no upfront cost to start, on approved credit, and no equipment maintenance to manage yourself.

None of these three is the right answer for every household. They’re three different ways of paying for the same outcome, lower monthly power costs, and the right one depends on whether you’d rather own equipment and claim what’s available for owning it, or pay nothing to start and let someone else hold the equipment risk. Ask what you specifically qualify for under each structure before deciding, since credit approval and system size both affect the real numbers. More on financing options.

So is it still worth it? What the honest answer depends on

Here’s what determines your answer, in the order it actually matters.

What you’re paying today. At 29.61 cents per kilowatt-hour for the average Massachusetts residential customer, and with documented spikes in the recent past even if the very latest month eased slightly, the baseline cost of not generating your own power is real and it’s the number everything else gets compared against.

What your roof and usage actually support. SMART 3.0 payments, the state tax credit, and net metering credits all scale with your system size and production, not with a generic statewide average.

Which financing structure fits your household. Cash and loan owners get access to the state credit and keep the full SMART and net metering value. PPA and lease customers trade that access for no upfront cost and no equipment ownership.

And what’s actually available to you right now, not what was available last year. The federal credit’s gone. SMART 3.0 is open but not yet paying new projects. The state credit is real but capped and roof-exclusive. Net metering is live but under regulatory review.

None of that adds up to a single number we can hand you honestly, and we’d rather tell you that than invent one. What it adds up to is a real, current, Massachusetts-specific set of facts you can take into a conversation with an installer and actually use. See what’s currently available where you live.

Rooftop Power installs solar, roofing, and battery storage across Massachusetts, including in your area. Find your town on our Massachusetts service page. If you are still at the stage of comparing installers rather than running numbers, here is how to compare solar companies in Massachusetts. Ask what you specifically qualify for. We’ll walk you through the real numbers for your house, not a statewide average.