Solar Panel Cost Calculator
Enter your state and monthly electricity bill for a personalized solar cost and ROI estimate.
Solar Panel Cost Calculator
Instant estimate with Solar Score™ — unique to MySunROI
Estimate for Texas
$7,200net after 30% ITC
~4 kW · 10 panels · $10,300 before credits · 12.8¢/kWh
Annual savings
$874
Payback
8.2 yrs
25-year savings
$22,944
25-year savings timeline
Includes ~3% utility rate growth & 0.5%/yr panel degradation
Frequently Asked Questions
How accurate is this solar calculator?
Estimates are based on NREL cost benchmarks, EIA electricity rates, and regional modifiers. Actual installer quotes vary by roof, equipment, and local labor.
Does the calculator include the federal tax credit?
Yes — we apply the 30% federal Investment Tax Credit (ITC) to eligible residential systems. State incentives may further reduce cost.
What system size does the calculator use?
System size is estimated from your monthly bill and state electricity rate, typically 4–12 kW for residential homes.