Solar Panel ROI & Savings Calculator
Calculate solar panel payback period, lifetime savings, and ROI for residential installations.
Calculation Inputs
Calculation Results
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Enter inputs on the left and click Calculate to view results.
Formula & Methodology
Net cost = System × (1 − credit%); Annual savings = bill × 12 × coverage%; Payback = Net / Annual
The 30% federal solar tax credit through 2032 makes solar highly attractive. Most systems pay back in 6-12 years and last 25-30 years.
Frequently Asked Questions
Is solar worth it?
For most homeowners yes — especially with high electricity rates. Average ROI is 10-20% over 25 years. Adds $15-25k to home resale value. Best in sun-rich states.