Solar Panel Cost Calculator
Enter your state and monthly electricity bill for a personalized solar cost and ROI estimate.
Solar Panel Cost Calculator
Estimate for Texas
$7,200 net after tax credit
~4 kW system · $10,300 before 12.8¢/kWh incentives
Annual savings
$874
Payback
8.2 years
30-year savings
$23,598
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.