Updated for 2026.
Newton is one of the easier places in Massachusetts to make rooftop solar pay, and not only because of the numbers. The Garden City has the big, well-oriented suburban roofs that fit a full-sized system, some of the highest electricity prices in the country, and an unusual amount of local help: the city’s own Go Solar program is the top search result for solar here, the nonprofit Green Newton runs solar resources, and a city Energy Coach Service walks residents through it. On top of that, Newton already buys 95% renewable electricity supply for residents through Newton Power Choice, so adding panels layers net metering and the state SMART payment onto an already-green bill. This guide covers what solar panels in Newton actually cost, how Eversource net metering and SMART pay you, the Massachusetts incentives that still apply even though the 30% federal homeowner tax credit (Section 25D) ended after December 31, 2025, and how to screen an installer, then you can check your address in about a minute.
Newton rooftop solar in 2026, by the numbers
- Newton already runs on green power, and the city helps you add your own. Newton Power Choice supplies a 95% renewable default to residents at a fixed 13.99 cents per kWh through January 2028, and the City’s Go Solar program plus Green Newton actively help homeowners add panels (Newton Power Choice; City of Newton Go Solar, as of June 2026).
- Your power is expensive, which is what makes solar pay. Massachusetts residential electricity averages about 30.21 cents per kWh all-in (EIA, as of March 2026), nearly double the national average.
- Eversource administers your net metering, and a typical Newton system is cap-exempt. Newton is Eversource (former NSTAR) electric territory, and residential systems up to 25 kW are cap-exempt and credited near full retail value (Mass.gov net-metering guide, as of 2026).
- SMART adds a per-kWh payment on top, locked for 20 years. Massachusetts pays the system owner about 3 cents per kWh for a standard residential system, or about 6 cents for income-eligible customers, for a 20-year term (MassCEC SMART, as of June 2026).
- Massachusetts does not tax your solar, and credits 15% of the cost. The state gives a 15% income-tax credit up to $1,000, a 100% sales-tax exemption, and a 20-year property-tax exemption (DSIRE Massachusetts; Mass.gov Schedule EC, as of 2026).
- The 30% federal homeowner credit (Section 25D) ended after December 31, 2025 (IRS, as of January 1, 2026), so a Newton homeowner who buys solar in 2026 cannot claim it.
Is solar worth it in Newton in 2026?
For most owner-occupied Newton homes, yes, and the city is one of the stronger rooftop markets in Massachusetts. Massachusetts residential electricity averages about 30.21 cents per kWh all-in (EIA, as of March 2026), among the highest rates in the country, so every kilowatt-hour your roof makes offsets an expensive one from the grid. Newton’s housing helps too: large single-family homes with big, often south-facing roofs leave room for a full-sized system, which is the opposite of the constrained triple-decker and row-house roofs in a dense city like Boston (our Boston solar guide covers that denser-city case). The question in Newton is usually how big to go and whether to add a battery, not whether the roof works.
Here is the bill math, as an illustration only. A Massachusetts home that uses about 8,000 kWh a year spends roughly $2,400 a year on electricity at 30.21 cents per kWh. A rooftop system sized to offset most of that cuts the bill by a large share, and the SMART payment and state tax credit come on top. We do not publish a made-up production number for your ZIP, because real output depends on your roof’s pitch, shading, and direction. Estimate your own with NREL’s free PVWatts calculator, which gives you a real figure for your roof in a couple of minutes, and it is worth getting right because your production drives both your net-metering credits and your SMART payments.
For a sense of the wider numbers, here is what Massachusetts market data points to before your own quote. These are statewide estimates, not a quote for your roof, so treat them as a starting range and confirm your real figures with an installer and PVWatts.
| Massachusetts solar economics (estimate, confirm with a quote) | Figure | Source |
|---|---|---|
| Average installed cost | About $2.96 per watt, roughly $27,000 to $37,000 before incentives for a typical home system | EnergySage Massachusetts, as of 2026 |
| Typical payback period | About 7 years, and Newton’s high local rate can shorten it | EnergySage Massachusetts, as of 2026 |
| Yearly grid power a system can offset | About $2,400 a year at 30.21 cents per kWh for an 8,000 kWh home | EIA, illustration as of March 2026 |
| Estimated 25-year bill savings (MA average) | About $150,000 | EnergySage Massachusetts, as of 2026 |
See what solar programs are available in your Newton ZIP code
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Newton already buys green power, and helps you make your own
One thing that genuinely sets Newton apart is how organized the city is around going solar. Newton Power Choice, the city’s municipal electricity aggregation, buys the supply portion of residents’ bills in bulk and defaults to a 95% renewable energy mix, a more aggressive standard than most Massachusetts aggregations, at a fixed 13.99 cents per kWh supply rate locked through January 2028, with a 100% renewable opt-up available (Newton Power Choice, as of June 2026). That program only sets your supply price; Eversource still delivers your electricity and runs your net metering, so rooftop solar stacks on top rather than competing with it.
The city and a local nonprofit also do something most towns do not: they help you directly. The City of Newton’s Go Solar page is the number-one search result for solar in Newton and points residents to vetted resources, the nonprofit Green Newton runs a solar program and energy coaching, and the city’s Climate Action Plan for 2026 to 2030 makes the residential sector its priority on the path to carbon neutrality by 2050 (City of Newton Go Solar; Green Newton, as of June 2026). For a Newton homeowner, that means free, local, non-sales help exists before you ever talk to an installer.
Your Newton utility is Eversource, and how it credits your solar
Newton is Eversource territory for electricity, and that is who administers your net metering. All of Newton’s villages sit in Eversource’s Eastern Massachusetts (former NSTAR) electric territory, so even if National Grid is your gas company, your electricity and your solar credits run through Eversource (Mass.gov Find My Electric Company, as of June 2026). When your panels make more than your home uses, the extra flows to the grid and Eversource credits your account in dollars at near the full retail rate, and those credits roll forward month to month (Mass.gov net-metering guide, as of 2026). For the mechanics in general, see how net metering credits your solar exports, and for the utility-level detail, our Eversource Massachusetts net metering and rates guide.
Two details matter for sizing a Newton system. First, residential systems of 25 kW or less are cap-exempt, after the state raised the residential threshold from 10 kW to 25 kW AC in 2025, so a typical home is never shut out of net metering (Mass.gov net-metering guide, as of 2026). Second, Eversource trues up any leftover credit balance once a year, in March, at a lower rate that is below retail, so the smart move is to size your system close to your annual usage rather than far above it. That keeps most of your production earning the high retail-rate credit instead of the lower year-end rate.
| What you earn | How it is valued | Who receives it |
|---|---|---|
| Monthly net-metering credits | Near full retail value, tracked in dollars and rolled forward | The Eversource account holder |
| Year-end leftover balance (trued up each March) | A lower avoided-cost rate, below retail | The account holder |
| SMART payments | A per-kWh incentive over a 20-year term | The system owner |
How Massachusetts SMART pays a Newton system on top of net metering
SMART is the part many homeowners miss: it pays you per kilowatt-hour you generate, separate from the bill savings. Under the SMART program (Solar Massachusetts Renewable Target), now running as the SMART 3.0 structure for the 2025 to 2026 program years, an eligible Eversource residential customer earns a per-kWh payment of about 3 cents for a standard system, or about 6 cents for an income-eligible customer, locked in for a 20-year term (MassCEC SMART, as of June 2026). You can take it as a check from the utility or a credit on your bill, and your installer files the SMART application for you. It stacks directly on top of net metering, so your production is paid for twice: once as a bill credit and once as a SMART payment.
Treat the exact rate as a moving number. The state resets SMART rates and capacity each program year, and storage and other adders can change the figure, so confirm the current value for your block with your installer rather than budgeting around an old number, and note that eligibility generally requires on-site construction to have begun on or after June 20, 2025 (MassCEC SMART, as of June 2026). The 20-year lock is the key point: once your system is approved, that per-kWh rate is fixed for the term.
| How Massachusetts pays your Newton solar | What it does | 2026 value | How long |
|---|---|---|---|
| Eversource net metering | Credits the grid power you offset | Near full retail (about 30 cents per kWh in MA) | Ongoing, while you own the system |
| SMART (state production incentive) | Pays you per kWh you generate | About 3 cents per kWh (about 6 cents income-eligible) | Fixed 20-year term |
| Massachusetts income-tax credit | One-time credit on your state return | 15% of net cost, up to $1,000 | One time (3-year carryforward) |
Massachusetts solar incentives on a Newton account
On top of net metering and SMART, Newton homeowners get the same statewide tax benefits as the rest of Massachusetts, and they go to the system owner. That ownership point matters if you lease, because then the leasing company keeps these benefits.
- A state income-tax credit worth 15% of the net system cost, capped at $1,000, with up to a 3-year carryforward of any unused amount (Mass.gov Schedule EC; M.G.L. c.62 s.6(d), as of 2026).
- A 100% sales-tax exemption on qualifying solar equipment, off the state’s 6.25% rate (DSIRE Massachusetts, as of 2026).
- A 20-year property-tax exemption on the added home value from a qualifying system, under Clause 45, which is worth more in a high-home-value city like Newton (M.G.L. c.59 s.5, Clause Forty-fifth, as of 2026).
Because these benefits are statewide, we keep the full detail on our Massachusetts solar incentives and costs guide and our how solar incentives work explainer rather than repeating all of it here.
What the end of the federal tax credit means for Newton
The federal homeowner credit is gone, but none of the Massachusetts programs are. The 30% federal Residential Clean Energy Credit (Section 25D) ended for systems placed in service after December 31, 2025 under the One Big Beautiful Bill Act, so a Newton homeowner who buys solar with cash or a loan in 2026 cannot claim that 30% federal credit (IRS Residential Clean Energy Credit; SEIA, as of 2026). You will still see installer pages and search results asking whether the 30% credit is going away; the accurate answer for 2026 is that the homeowner version already ended after 2025.
One federal credit still exists, but it is not yours to claim. A separate commercial credit, Section 48E, is claimed by the business that owns a leased or PPA system, not by the homeowner (IRS Clean Electricity Investment Credit, as of 2026). On a lease or PPA, the company that owns the panels takes that credit. The 25D homeowner credit, by contrast, ended after December 31, 2025. The good news for Newton is that the federal change did not touch net metering, SMART, or the state tax benefits, and at Newton’s high rates the bill offset alone is substantial. MySolarFY does not provide tax advice; confirm your situation with a tax professional.
Paying for solar in Newton: cash, loan, lease, or PPA
There is no single right way to pay for solar; it comes down to whether you want to own the system and keep the incentives, or skip the up-front cost. Newton is an affluent, high-roof-value suburb, so it tends to be a strong market for cash and loan purchases, where you keep the SMART payments and the Massachusetts tax benefits and you control the system. A lease or PPA can mean no up-front cost for eligible homeowners, but it is a long-term agreement with monthly payments, solar panels are not free, and the company that owns the panels collects the SMART payment and the state tax credit, not you. To weigh the long-run numbers, see our Massachusetts solar incentives and costs guide.
| Path | Up-front cost | Who keeps SMART + MA tax credit | Best when |
|---|---|---|---|
| Cash purchase | Full system cost | You, the owner | You want the fastest payback and the most lifetime value |
| Solar loan | Little to none, financed | You, the owner | You want ownership without paying cash up front |
| Lease or PPA | $0-up-front where eligible | The third-party owner | You prefer no up-front cost and a simpler, fixed monthly bill |
How to choose a solar installer in Newton
Newton has a deep, competitive installer market, and the city’s own resources are a good neutral starting point. A dozen or so solar companies serve Newton, from Massachusetts firms to national brands, and the City’s Go Solar page and Green Newton point residents to vetted information rather than to ads. Rather than chasing a “best installer” list, screen any company against objective criteria:
- NABCEP certification, the industry’s professional standard for solar installers.
- A valid Massachusetts Home Improvement Contractor (HIC) registration and the proper electrical licensing.
- Real experience with Eversource interconnection, the SMART application, and Newton permitting, so your net metering, your SMART payments, and your Permission to Operate all go through cleanly.
- A clear workmanship and equipment warranty in writing, and a battery option if you want backup power, since many larger Newton roofs can support storage.
- A written production estimate and a transparent quote that uses today’s SMART value, not an old one.
MySolarFY matches you with licensed installers that serve the Newton area so you can compare real local quotes side by side, with no obligation.
See which licensed Newton installers serve your ZIP →
Weighing your options across the area? Compare nearby solar markets with our local guides for Framingham.
Frequently asked questions
Is solar worth it in Newton, Massachusetts? For most owner-occupied Newton homes, yes. Massachusetts residential electricity averages about 30.21 cents per kWh all-in (EIA, as of March 2026), among the highest in the country, so every kilowatt-hour your roof makes offsets an expensive grid one. Net metering through Eversource credits a typical home near full retail value, and the SMART incentive adds a per-kWh payment of about 3 cents on top for 20 years (MassCEC SMART, as of June 2026). Newton’s large suburban roofs make it easier to fit a full-sized system than a dense-city roof. Savings are not guaranteed and depend on your roof, usage, and how you pay, but the high local rate plus the state stack is what makes Newton a strong solar market.
Who is my electric utility for solar in Newton? Eversource. All of Newton sits in Eversource’s Eastern Massachusetts (former NSTAR) electric territory, and Massachusetts utility territories do not overlap, so net metering for a Newton home is administered by Eversource (Mass.gov Find My Electric Company, as of June 2026). National Grid is the gas utility in Newton, not electric, so do not let that confuse the question. If you are on Newton Power Choice, that program only sets your supply price; Eversource still handles delivery and net metering, and your solar credits work the same.
What is the SMART program and how much does it pay? SMART (Solar Massachusetts Renewable Target) is the state’s per-kWh solar production incentive, now running as SMART 3.0. An eligible Eversource residential customer earns about 3 cents per kWh for a standard system, or about 6 cents for an income-eligible customer, locked for a 20-year term, paid as a utility check or bill credit, with your installer filing the application (MassCEC SMART, as of June 2026). It is separate from net metering, so you collect it on top of your bill credits. The state resets the rate each program year and storage adders can change it, so confirm the current value with your installer before you sign.
How does Newton Power Choice affect my solar? Newton Power Choice is the city’s municipal electricity aggregation, and it only sets the supply portion of your bill, currently a 95% renewable default at a fixed 13.99 cents per kWh through January 2028, with a 100% opt-up (Newton Power Choice, as of June 2026). Eversource still delivers your power and administers net metering, so going solar works exactly the same whether you are on Newton Power Choice or Eversource Basic Service. Rooftop solar layers net-metering credits and the SMART payment on top of your supply, and because the city already buys mostly renewable power, your panels mainly cut your bill and earn SMART rather than changing where your supply comes from.
Is the 30% federal solar tax credit gone for 2026? Yes, for homeowners. The 30% federal Residential Clean Energy Credit (Section 25D) ended for systems placed in service after December 31, 2025 under the One Big Beautiful Bill Act, so a Newton homeowner who installs solar in 2026 cannot claim it (IRS; SEIA, as of 2026). You will see search results asking whether the credit is being taken away; the accurate answer is that the homeowner version already ended after 2025. A separate commercial credit, Section 48E, can apply to a leased or PPA system, but the business that owns it claims the credit, not you. Massachusetts net metering, SMART, and the state tax benefits were not affected. MySolarFY does not provide tax advice; confirm your situation with a tax professional.
Is there a no-cost solar program in Newton or Massachusetts? Solar is not free. There is no program that hands Newton homeowners a system at no cost, and any ad implying one is overstating it. What does exist is no-up-front-cost financing for eligible homeowners through a lease or power purchase agreement (PPA), where you pay nothing at installation and make monthly payments instead, while the company that owns the system keeps the SMART payment and the Massachusetts tax credit. Owning the system with cash or a loan is what lets you keep those incentives yourself. The honest way to find your real number is to compare quotes for your address, and the City of Newton and Green Newton also offer free, non-sales energy help (City of Newton Go Solar, as of June 2026).
Reviewed by the MySolarFY team. Figures were verified against the linked EIA, Mass.gov (DOER/DPU), MassCEC, Newton Power Choice, City of Newton, DSIRE, and IRS sources as of June 2026; the SMART value and term, net-metering true-up rates, and the Newton Power Choice supply rate can change, so confirm current terms with Eversource, MassCEC, and your installer before you decide. MySolarFY does not provide tax or financial advice; consult a licensed professional about your own situation. Learn more about the MySolarFY team and how we work.
MySolarFY is a free service that matches homeowners with licensed solar installers. We are not an installer, financing company, tax advisor, or government program, and we do not provide tax advice. The federal residential solar tax credit (Section 25D) ended for systems placed in service after December 31, 2025, so homeowners who install solar in 2026 cannot claim it. “No up-front cost” refers to qualifying lease or PPA financing, where eligible homeowners may have no out-of-pocket cost at installation; lease and PPA terms typically run 20 to 25 years, may include an annual price escalator, and total payments may exceed the cost of a cash purchase, and on a lease or PPA the SMART payment and tax benefits go to the company that owns the system, not the homeowner. Solar panels are not free and monthly payments apply. Incentives, savings, and rates vary, change over time, and are not guaranteed. See our full disclaimer.
