National Grid customers in the greater Boston area paid an average of 34¢ per kilowatt-hour this past winter, while Eversource territory wasn’t too far behind. Those are among the highest residential electricity rates in the country, currently.
They are also the reason so-called free solar pitches are landing in Massachusetts mailboxes at an astonishing pace – a pace that nobody saw barely two or three years ago.
But, as you have hopefully figured out already, nobody is giving away solar equipment. Every “free solar” ad is a financing arrangement where the upfront cost is zero, and the real price is cleverly buried in various obligations.
Find out if you're eligible for $0-down solar in Massachusetts!
Why “Free Solar” Offers Are Surging Across the Bay State
Two big changes arrived at the beginning of 2026, completely shaking up the math behind solar in Massachusetts:
The Federal Residential Tax Credit Is Gone
The 30% federal residential solar tax credit (Section 25D) came to an end on December 31, 2025, thanks to the One Big Beautiful Bill Act.
It used to knock $6,000 to $10,000 off the price of a system you bought outright. Now, going solar in 2026 means shelling out a lot more upfront than you would have just a year earlier.
That’s where lease and PPA companies jumped in to fill the void. They can still tap into the 30% commercial Investment Tax Credit under Section 48E, which runs through 2027, as long as construction starts by July 4, 2026. It’s their profit cushion, and they’re leveraging it to roll out those $0-down offers.
Massachusetts Electricity Rates Keep Climbing
Statewide averages hover around 31–34¢ per kWh – about 68% higher than the national figure. Eversource bumped its residential supply rate to 15.6¢/kWh back in February 2026 (that’s a 5% hike), and National Grid filed for comparable increases.
With bills starting from such a steep baseline, even a small per-kWh break from a PPA can seem like a winner at first glance.
No one’s arguing $0-down solar isn’t available in Massachusetts – it absolutely is. The real issue is whether the offer on the table beats what you would probably pocket by owning the panels yourself.
What “Free Solar Panels” Actually Means in Massachusetts
Rather deceptively, the term free refers to the upfront cost being zero, not the total cost. The panels, inverters, racking, and installation all carry very real price tags. That cost is either rolled into a loan, absorbed by a leasing company, or baked into a per-kWh rate you agree to pay for 20–25 years.
What makes Massachusetts unique is the SMART 3.0 program. Under 225 CMR 28.00, the state pays solar system owners a fixed rate per kWh produced. For residential systems 25 kW and under, that is a Flat Incentive Rate locked in at qualification and paid by your utility for 20 years.
It’s real money, and whoever owns the system collects it.
That distinction of ownership is the single most important variable in any $0-down decision in this state.
Three Paths to $0-Down Solar in Massachusetts
1. Solar Loan: $0 Down, Full Ownership
A solar loan covers the full system cost with nothing out of pocket. You own the panels from day one, collect the SMART 3.0 payments, keep every net metering credit, and claim the $1,000 Massachusetts state income tax credit.
The obvious catch in 2026 is this: without the federal credit to knock down the loan balance in year one, your monthly payment is higher than it would have been last year. If your loan payment exceeds your current electric bill, the ambitious savings from day one pitch doesn’t quite add up.
That said, once the loan is paid off, you are producing electricity for essentially nothing, against utility rates that are almost certainly going to keep rising.
| ℹ️ For a full breakdown of what solar systems cost right now, see our comprehensive guide to the Cost of Solar Panels in Massachusetts. |
2. Solar Lease: Fixed Monthly Payment, No Ownership
A solar company puts the system on your roof and keeps ownership. You just pay a fixed monthly fee, while they take care of all the maintenance, monitoring, and fixes. In turn, they pocket the Section 48E commercial credit savings to charge you less than your Eversource or National Grid bill.
Again, the downside is that you don’t own it, so no SMART 3.0 payments or that $1,000 state tax credit for you. Plus, if you’re selling the house, the lease has to transfer to the buyer or you buy it out. Either way, it can make the deal a real headache.
3. Power Purchase Agreement (PPA): Pay Per kWh
A PPA works like a lease, but instead of a flat monthly payment, you pay for the electricity the system produces at a locked-in rate below your utility’s current price.
The risk is the escalator clause. Most contracts include an annual rate increase of 1–3%. Over 20–25 years, that escalator can push your PPA rate above what the utility charges if grid prices don’t rise as fast as projected.
At 34¢/kWh, Massachusetts rates are already near a ceiling compared to most of the country. The assumption that they will keep climbing at 2–3% indefinitely is worth questioning.
How Each $0-Down Option Stacks Up
Solar Loan | Solar Lease | PPA | |
|---|---|---|---|
Upfront Cost | $0 | $0 | $0 |
Who Owns the System | You | Solar company | Solar company |
Federal Credit (2026) | Not available | Company claims 48E | Company claims 48E |
SMART 3.0 Income | You keep it | Company keeps it | Company keeps it |
$1,000 MA State Credit | You claim it | Not available to you | Not available to you |
Net Metering Credits | You keep them | Company keeps them | Company keeps them |
ConnectedSolutions (Battery) | You earn ~$1,200/yr | Company decision | Company decision |
Maintenance | Your responsibility | Company handles | Company handles |
Long-Term Savings | Highest after payoff | Moderate | Depends on the escalator |
The SMART 3.0 Trade-Off: What a PPA Provider Keeps
Somewhat predictably, this is the calculation most “free solar” ads conveniently overlook. The fact is that when you sign a lease or PPA, you are handing over 20 years of state-backed income.
Under SMART 3.0 (225 CMR 28.00), residential systems 25 kW and under receive a Flat Incentive Rate locked in at qualification and paid monthly by your utility for 20 years. The exact rate depends on your utility territory and system configuration, but it’s a meaningful revenue stream that a lease or PPA provider collects instead of you.
Loan owners also keep ConnectedSolutions income. National Grid pays an average of $275/kW for battery discharge during peak demand events – roughly $1,200 per year for a typical installation. Over five years, that’s up to $6,000–7,500 in revenue a PPA customer never sees.
‼️Important caveat: SMART 3.0 payments are taxable income. Any ROI calculation should be run after tax.
Massachusetts Incentives That Still Apply to $0-Down Solar
While the federal residential credit is gone, Massachusetts’ state-level stack remains one of the strongest in the country.
$1,000 state income tax credit. Equal to 15% of system cost, capped at $1,000. Only available to system owners – loan buyers claim it, lease and PPA customers do not.
Property tax exemption. Under MGL Chapter 59, Section 5, the added home value from solar is exempt from property taxes for 20 years.
Sales tax exemption. Solar equipment is exempt from the 6.25% state sales tax under MGL Chapter 64H, Section 6(dd). On a $25,000 system, that saves roughly $1,560.
Net metering. Eversource, National Grid, and Unitil credit excess production at or near the full retail rate for systems up to 25 kW AC. Credits roll forward monthly.
| ℹ️ For a more detailed rundown, see our Guide to Massachusetts Solar Incentives. |
Who Qualifies for $0-Down Solar in Massachusetts?
Credit score. Loan and lease providers typically require mid-600s or higher. Best rates go to borrowers above 700.
Roof condition and snow load. Installers need to confirm your roof handles both panel weight and accumulated snow. An aging roof may need replacement first.
Roof orientation and shading. Southern or western exposure is ideal. Massachusetts gets 3.8–4.2 peak sun hours per day—less forgiving than sunnier states, so panel placement matters more.
Utility territory. You must be on an investor-owned utility (Eversource, National Grid, or Unitil) to access SMART 3.0 and full-rate net metering. Municipal Light Plant (MLP) customers in towns like Reading, Shrewsbury, or Concord are generally ineligible for SMART and may receive reduced net metering credits or none at all.
When $0-Down Solar Is Not the Right Move
You’re on a Municipal Light Plant with limited net metering. MLPs are not required to offer full-rate net metering. Some offer buy-back rates well below retail, extending the payback period to 12–15 years.
Your electric bill is under $80–100 per month. The savings may not outpace financing costs or lease payments.
Your roof needs replacement. That’s $10,000–25,000 before a single panel goes up. In Massachusetts, where snow load requirements are more demanding, this isn’t optional.
You’re planning to sell within two to three years. A lease or PPA can slow a sale, and a loan balance may not be recovered in the resale premium over that short a window.
The contract terms don’t add up. If a lease payment plus remaining utility charges exceed what you’re currently paying, it’s not saving you anything.
| ℹ️ For a detailed look at when the numbers work, see our analysis: Are Solar Panels Worth It in Massachusetts? |
What to Watch for in “Free Solar” Offers
Escalator Clauses in PPAs
A 2.9% annual increase sounds small, but over 25 years it can nearly double your rate. Ask what your payment looks like in year 10 and year 25.
Who Keeps the Smart Income
Ask your provider to quantify total SMART income over 20 years and explain how it factors into your rate. If they can’t answer, that’s a giant red flag.
The Battery Adder Question
SMART 3.0 includes additional compensation for systems paired with storage. Confirm whether a PPA provider is keeping the battery adder income on top of the base incentive.
Installer Credentials
Ask whether they carry a Massachusetts Construction Supervisor License (CSL) and Home Improvement Contractor (HIC) registration. SMART 3.0 paperwork errors can cost thousands in lost payments.
| ℹ️ For help evaluating installers, see our Guide to the Top Solar Companies in Massachusetts. |
Calculate Your SMART 3.0 + ConnectedSolutions Total Stack
Massachusetts electricity rates are among the highest in the nation. Whether a $0-down option saves you money depends on your utility territory, your roof, your credit, and (more than anything) whether you’re keeping SMART 3.0 income or giving it away.
Enter your ZIP code below to check availability in your area and see if your home qualifies.
Try our Massachusetts solar cost and savings calculator!
Frequently Asked Questions
Not free in the literal sense. “Free solar panels” refers to $0-down financing, where you pay nothing up front. The cost is recovered through loan payments, lease payments, or a per-kWh rate under a PPA.
No, the system owner receives SMART 3.0 payments. With a lease or PPA, the solar company collects all SMART income, the $1,000 state tax credit, and any ConnectedSolutions battery revenue.
For most homeowners, a $0-down solar loan delivers the strongest long-term return because you own the system, collect SMART 3.0 income, keep net metering credits, and claim the state tax credit.
Leasing offers simplicity, but you forfeit the income stack that makes Massachusetts one of the most rewarding states for solar ownership.
No, the 30% residential credit (Section 25D) expired December 31, 2025, under the One Big Beautiful Bill Act. Lease and PPA providers can still access the commercial Section 48E credit through 2027, which is how they fund $0-down offers.
MLP customers are generally ineligible for SMART 3.0 and may not receive full-rate net metering. Check with your specific MLP before committing.
Sources
- Mass.gov — SMART 3.0 Program Details (225 CMR 28.00): https://www.mass.gov/info-details/smart-30-program-details
- Mass.gov — SMART Program Year 2026 Annual Report: https://www.mass.gov/doc/program-year-2026-annual-report/download
- IRS — FAQs on OBBB Modifications to Sections 25C, 25D, 25E, 30C, 30D, 45L, 45W, and 179D: https://www.irs.gov/newsroom/faqs-for-modification-of-sections-25c-25d-25e-30c-30d-45l-45w-and-179d-under-public-law-119-21-139-stat-72-july-4-2025-commonly-known-as-the-one-big-beautiful-bill-obbb
- Mass.gov — Basic Service Information and Rates: https://www.mass.gov/info-details/basic-service-information-and-rates
- EnergySage — Massachusetts Electricity Costs (March 2026): https://www.energysage.com/local-data/electricity-cost/ma/
- National Grid — ConnectedSolutions Battery Program: https://www.nationalgridus.com/MA-Home/Connected-Solutions/BatteryProgram
- Mass.gov — 225 CMR 28.00 Regulation Text: https://www.mass.gov/regulations/225-CMR-2800-solar-massachusetts-renewable-target-smart-program-30
- SEIA — Clean Energy Provisions in the One Big Beautiful Bill: https://seia.org/research-resources/clean-energy-provisions-big-beautiful-bill/
