Solar Panels for EV Charging Calculator
Estimate how much rooftop solar it takes to offset your EV's charging. Enter your annual miles, efficiency, and local sun hours to size the solar capacity and number of panels that generate roughly as much energy each year as your car uses.
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Frequently asked questions
It depends on how far you drive, your car's efficiency, and how much sun your area gets. A typical driver covering 12,000 miles a year needs roughly 3–4 kW of solar — about 8–10 standard 400W panels — to generate as much energy annually as the EV uses for charging.
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