Solar Panel ROI Calculator
Calculate your return on investment for solar panels. See how quickly your system pays for itself.
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How to Calculate Solar Panel ROI
Solar panel return on investment depends on three factors: system size, local electricity rates, and sun hours. Our calculator uses an 80% system efficiency factor that accounts for inverter losses, wiring, soiling, and temperature effects. Your actual ROI may be higher with government incentives like the federal tax credit (30% ITC in the US).
Is Solar Worth It?
At the current US average electricity rate of $0.16/kWh, a typical residential solar system pays for itself in 6-8 years and then generates free electricity for another 17-19 years (panels last 25+ years). With rising electricity costs, the payback period keeps shrinking.