Boston · MA
Solar Companies in
Boston, MA
Boston homeowners pay $16,400–$24,100 for a typical 8 kW solar system in 2026. The federal 30% residential tax credit expired December 31, 2025; Massachusetts's property tax and sales tax exemptions remain active. At Eversource Energy's rate of $0.231/kWh, most systems pay back in 10–14 years.
Compare up to 3 free quotes from pre-vetted local installers — no pressure, no obligation.
4.2 hrs/day
Peak Sun Hours
$1,590/yr
Avg. Annual Savings
10–14 yrs
Payback Period
$16,400–$24,100
Avg. System Cost
2026 update: The 30% federal residential solar tax credit (Section 25D) expired December 31, 2025. Homeowners purchasing systems in 2026 cannot claim it. Solar leases and PPAs are the exception — the installer can still claim commercial credits and pass savings through in the monthly rate. Full 2026 ITC guide →
About Solar in Boston
Why Boston Homeowners Are Going Solar in 2026
Boston is one of the strongest solar markets in the Northeast. Eversource's high rates ($0.231/kWh), the Massachusetts SMART program (10-year fixed incentive), 15% state tax credit (up to $1,000), and full sales and property tax exemptions create a compelling incentive stack even without the federal ITC. The SMART program is the key differentiator — verify current block availability before committing.
Key solar facts for Boston
- 4.2 peak sun hours per day
- Eversource Energy average rate: $0.231/kWh
- Average monthly bill: $155
- Popular system size: 8 kW
- Permit timeline: Boston permits typically take 4–8 weeks due to the city's historic building stock and Inspectional Services Department review requirements. Older triple-decker homes may require additional structural assessments.
Active Incentives
Boston Solar Incentives in 2026
Massachusetts SMART Program
Utility ProgramThe Solar Massachusetts Renewable Target (SMART) program pays solar owners a fixed incentive rate per kWh generated for 10 years. SMART rates vary by utility and system size — check current capacity availability with your installer as program blocks fill up.
Value: Fixed incentive per kWh for 10 years (rate varies)
Massachusetts Net Metering
Net MeteringEversource Energy credits excess solar generation at the retail rate under Massachusetts' net metering law. Annual true-up: unused credits roll forward but do not pay out as cash.
Value: Retail rate credit
Massachusetts State Income Tax Credit
State CreditMassachusetts offers a 15% state income tax credit on solar installation costs, up to $1,000 per year. This credit can be carried forward for up to 3 years if not fully used in the installation year.
Value: 15% credit up to $1,000/year (3-year carryforward)
Massachusetts Sales Tax Exemption
Sales TaxResidential solar equipment is fully exempt from Massachusetts' 6.25% sales tax, saving $1,025–$1,506 on a typical Boston installation.
Value: 6.25% sales tax savings
Massachusetts Property Tax Exemption
Property TaxSolar installations are exempt from Massachusetts property tax assessments for 20 years under MGL Chapter 59, Section 5.
Value: 20-year property tax exemption
Net Metering in Boston
Eversource Energy credits excess solar generation at the retail rate under Massachusetts' net metering law. Annual true-up: unused credits roll forward but do not pay out as cash.
Solar Leases & PPAs in Boston
Solar leases and PPAs are widely available in Boston through Eversource-approved installers. Massachusetts' SMART program payments are assignable to third-party owners in lease/PPA arrangements — confirm SMART eligibility with your installer before signing.
How much does solar cost in Boston?
Detailed cost breakdown, financing options, and payback analysis for Boston homeowners.
Want national solar cost data? How Much Do Solar Panels Cost in 2026? →
Common Questions
Boston Solar FAQ
Get Free Boston Quotes
Compare up to 3 pre-vetted local installers. No pressure, no obligation.
Get My Free QuotesTakes 60 seconds · 100% free
Boston Solar at a Glance
Solar Installers Serving Boston and Surrounding Areas
Our network of pre-vetted solar installers serves Boston and these nearby communities:
Ready to Go Solar in Boston?
Get matched with up to 3 pre-vetted Boston solar installers — free, no pressure, no obligation.
Get My Free Boston Quotes