Solar Panels in Boston, MA
Boston gets 3.8 peak sun hours/day with electricity at $0.27/kWh. Calculate panels needed, installed cost, and payback period (updated for 2026 — no federal credit).
☀️ Boston Solar Calculator
System Sizes in Boston
| Monthly kWh | Panels | kW | Installed Cost | Savings/yr | Payback |
|---|---|---|---|---|---|
| 500 | 14 | 5.6 | $17,920 | $1,678 | 10.7 yrs |
| 750 | 21 | 8.4 | $26,880 | $2,517 | 10.7 yrs |
| 1,000 | 28 | 11.2 | $35,840 | $3,355 | 10.7 yrs |
| 1,500 | 42 | 16.8 | $53,760 | $5,033 | 10.7 yrs |
| 2,000 | 55 | 22.0 | $70,400 | $6,591 | 10.7 yrs |
| 2,500 | 69 | 27.6 | $88,320 | $8,269 | 10.7 yrs |
Solar Guide for Boston (2026)
Boston at latitude 42.36°N receives 3.8 peak sun hours/day. At $0.27/kWh, solar offers exceptional long-term savings.
Incentives: Federal ITC + SMART + state tax credit ($1,000).
NEC Solar Requirements
All installations must comply with NEC Article 690: rapid shutdown (690.12), conductor sizing at 125% (690.8), and proper grounding per NEC 250. Use our Solar Wire Size Calculator for conductor sizing.
Disclaimer: Estimates only. Consult a licensed solar installer. NEC Article 690 compliance required.
Frequently Asked Questions
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See also: Solar in Massachusetts