EV Solar Charging Calculator

Calculate how many solar panels you need to offset your electric vehicle charging.

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How It Works

The average EV uses about 3-4 miles per kWh, so 12,000 annual miles requires about 3,000-4,000 kWh. That is roughly 3-5 additional solar panels beyond your home system. Solar-charged EV driving costs about $0.03-0.05 per mile versus $0.12 per mile for gasoline at $3.50/gallon and 30 MPG. Over 10 years, solar EV charging saves $10,000-15,000 versus gas.