Solar Panel Cost in Boston, MA (2026)
Solar panel costs in Boston, MA typically run above the Massachusetts state average. A 6 kW system in Boston costs about $22,600 before the 30% federal ITC, with payback around 7.2 years at local utility rates.
Quick answer
In Boston, a 6 kW solar panel system costs about $22,600 installed (7.2-year payback). After the 30% federal tax credit, net cost is roughly $15,800. Annual savings: ~$1,890/year at 24.2¢/kWh.
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Estimate for Massachusetts
$9,100net after 30% ITC
~4 kW · 10 panels · $13,000 before credits · 24.2¢/kWh
Annual savings
$1,261
Payback
7.2 yrs
25-year savings
$33,126
25-year savings timeline
Includes ~3% utility rate growth & 0.5%/yr panel degradation
Boston vs US Average
| Metric | MA | US avg |
|---|---|---|
| 6 kW system (before credit) | $22,600 | $16,271 |
| Net cost after 30% ITC | $15,800 | $11,390 |
| Cost per watt | $0.00/W | — |
| Annual electricity savings | $1,890 | $1,335 |
| Payback period (years) | 7.2 yrs | 9 yrs |
| Electricity rate | 24.2¢/kWh | — |
Updated 2026-07-07. Estimates only.
What affects solar costs in Boston?
Massachusetts SMART program adds incentive value beyond the 30% ITC — verify block availability. Eversource and National Grid territories dominate.
Snow and nor'easters require robust mounting; winter production is lower but MA electricity rates among highest nationally.
Boston metro costs above US average but SMART + high rates support competitive payback.
Boston solar snapshot
- 6 kW system: $17,600 – $31,100
- After 30% ITC: $15,800
- Electric rate: 24.2¢/kWh · Peak sun: 4.2 hrs/day
- Payback: ~7.2 years · Annual savings: ~$1,890
How to maximize solar ROI in Boston
- Check SMART program eligibility
- Compare Boston vs. Worcester quotes
- Factor SREC income if applicable
Frequently Asked Questions
How much do solar panels cost in Boston?
A 6 kW solar system in Boston, MA typically costs $17,600–$31,100 before incentives, or $15,800 after the 30% federal tax credit.
Is solar worth it in Boston?
With 24.2¢/kWh electricity rates and 4.2 peak sun hours, Boston homeowners often see 7.2-year payback. Use our calculator for your roof and usage.
How does Boston compare to Massachusetts?
Boston install pricing is among the higher-cost metros in Massachusetts.
Related pages
How We Calculate Solar Costs
MySunROI estimates combine NREL residential PV installed-price benchmarks, EIA state electricity rates, and regional labor modifiers — updated 2026-07-07.
Estimates only. Last updated 2026-07-07. Estimates based on NREL PV cost benchmarks, EIA electricity rates, and 2026 installer pricing surveys.