Solar Calculators for Boston, Massachusetts
Free tools pre-loaded with Boston sun hours, electricity rates, and Massachusetts net metering policy.
Peak sun hours
4.1
hrs/day annual avg
Avg electricity rate
24.0¢
per kWh (Eversource / National Grid)
Typical install cost
$3.3/W
Massachusetts median (2026)
Typical 8 kW system in Boston
Annual production
11,972 kWh
Year-1 savings
$2,873
System cost (est.)
$26,400
Simple payback
~9 yrs
Estimates based on 4.1 peak sun hours, 24.0¢/kWh, and $3.3/W installed cost. No federal tax credit (Section 25D expired Dec 31, 2025).
Run the numbers for Boston
Size my system
kW needed from your bill
Pre-filled for Boston →Savings calculator
25-year savings & ROI
Pre-filled for Boston →Payback period
Break-even analysis
Pre-filled for Boston →Solar potential
Address-based production
Pre-filled for Boston →TOU optimizer
Model peak/off-peak rates
Pre-filled for Boston →Quote checker
Is my quote a fair price?
Pre-filled for Boston →Massachusetts solar incentives
Available to Boston homeowners. Note: the federal Section 25D residential solar credit expired December 31, 2025.
Check all Massachusetts incentives
Find Massachusetts incentives →