Solar EV Charging Calculator
Calculate how many solar panels you need to charge your EV. See system size, annual production, savings, and payback period.
Inputs
mi
mi/kWh
hrs
W
Results
Panels Needed
7
Annual Savings
$511
System Size2.8 kW
Annual Production4,088 kWh
Payback Period9.6 years
How to Use This Calculator
- Enter your average Daily Miles Driven and EV Efficiency in mi/kWh.
- Set the Peak Sun Hours for your location (use the NREL PVWatts tool for accurate data).
- Enter the Panel Wattage for your chosen solar panels (typical residential: 350–430W).
- Review Panels Needed, System Size in kW, Annual Production in kWh, Annual Savings, and Payback Period in years.
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