Leasing vs. Buying Solar in Massachusetts: Which Actually Makes More Sense?
By Dave Simmer
NABCEP-Trained Solar Professional — Scituate, MA
The lease vs. buy question is one of the first things homeowners ask when solar comes up. And while there's no single right answer for everyone, in Massachusetts in 2026 the math has shifted pretty clearly in one direction for most homeowners.
This guide breaks down exactly how each option works, what you give up and what you gain with each, and the specific Massachusetts factors that affect which makes more sense for your situation.
I'm Dave Simmer, a NABCEP-trained solar designer based in Scituate. I offer every solar product on the market — so I have no horse in this race. Here's the honest comparison.
First: what are the options?
Purchase (cash or loan)
You own the system outright. Whether you pay cash or finance through a solar loan, you are the system owner. You capture all incentives, all net metering credits (learn how net metering works), all SMART payments (see the SMART program guide), and all long-term savings. At the end of the loan, you own a paid-off system that continues producing electricity for 15–25 more years.
Solar lease
A solar company installs panels on your roof and owns them. You pay a fixed monthly rate — typically for 20–25 years — for the electricity they produce. No upfront cost, but you don't own the system and generally don't receive most of the incentives or credits directly.
Power Purchase Agreement (PPA)
Similar to a lease, but instead of a fixed monthly payment, you pay a per-kWh rate for the electricity your panels produce — often at a rate lower than the current utility rate. The solar company still owns the system.
What you give up with a lease or PPA
Incentives go to the system owner — not you
This is the most significant financial difference. The SMART program payments, net metering credits structure, and certain tax benefits flow to the system owner (see the full Massachusetts solar incentives guide). Under a lease or PPA, the solar company owns the system — so they capture many of these benefits, not you.
The company prices their lease or PPA to factor in those benefits and pass some of the savings through to you in the form of a lower monthly rate. But you're not capturing the full value yourself.
No equity in the system
When you buy a solar system, it adds value to your home — a value that is property-tax exempt in Massachusetts. When you lease, the system is someone else's asset sitting on your roof. It may complicate a home sale (wondering do solar panels increase home value?), requiring the buyer to either assume the lease or the lease to be bought out.
Long contract with escalators
Most solar leases include annual payment escalators — your monthly payment goes up by 1–3% per year over the contract term. Over a 20–25 year lease, those escalators can erode the savings significantly. Read the escalator clause carefully before signing any lease.
You can't modify the system
If you want to add panels or a battery later, you can't — it's not your system. Any changes require the system owner's approval.
When a lease or PPA might make sense
Despite the disadvantages above, leases and PPAs aren't inherently bad. They can make sense for homeowners who:
- Cannot qualify for a solar loan due to credit constraints
- Have no state tax liability to apply the $1,000 Massachusetts tax credit against
- Are unwilling or unable to take on any upfront cost or financing
- Simply want a predictable, lower electricity bill with no ownership responsibility
The key is going in with eyes open about what you're giving up in exchange for those benefits.
Why buying makes more sense for most Massachusetts homeowners in 2026
Solar loan products have improved dramatically over the past several years (see the full solar financing options guide). Today, many South Shore homeowners can finance a solar system with:
- No money down
- Monthly payments structured to be lower than their current electric bill
- Full system ownership from day one
- Access to all Massachusetts incentives and net metering credits
The "no upfront cost" advantage that leases once held has largely been neutralized by modern solar financing. If you can qualify for a solar loan — which most homeowners can — ownership almost always produces a better financial outcome over the life of the system.
For most Massachusetts homeowners who can qualify for financing, buying — through a loan if needed — produces significantly better long-term financial results than leasing.
What about prepaid leases and energy service agreements?
There's a middle-ground structure worth knowing about: the prepaid lease or energy service agreement (ESA). In this arrangement, a third party owns the system for the first several years — capturing commercial tax benefits and depreciation during that period — and passes those savings through to you as a reduced upfront cost. (Learn how to read a solar proposal before signing).
After the initial ownership period, the system may transfer to you. The exact structure varies by company and agreement. For some homeowners, this structure delivers a genuinely lower effective cost than a standard purchase — particularly for larger systems. It's worth understanding as one option in the mix, not dismissing it outright.
The bottom line on lease vs. buy
In Massachusetts in 2026, for homeowners who can qualify for financing: buy. The combination of full incentive access, net metering credit ownership, SMART enrollment, long-term equity, and no escalators makes ownership the stronger financial choice in most cases.
For homeowners where ownership isn't feasible — credit constraints, no tax liability, or firm preference for no financial commitment — a well-structured PPA or lease can still reduce your electric bill and is better than no solar at all.
I work through both options with every homeowner I talk to so you can see the real numbers side by side before making a decision.
Want to understand what purchasing a system actually costs?
Read: How Much Do Solar Panels Cost in Massachusetts?
