Solar + EV Savings Calculator: scooter or car
See petrol vs electric running costs and how much solar your EV needs.
A car driven 30 km a day needs about 4 units of electricity — roughly 1 kW of extra rooftop solar — and saves about ₹75,000 a year versus petrol. A scooter needs about 1 unit a day.
Want exact numbers?
A short call with a Solar Daily advisor turns these estimates into a firm plan.
Plan my solar + EV setup →Get free quoteHow this calculator works
An electric scooter uses about 35 Wh per km and a car about 130 Wh per km. The tool converts your daily distance into units, compares petrol cost with electricity cost, and divides daily units by about 4 (the units one kW of solar produces per day) to show the extra rooftop solar you would need.
Next: the solar + EV guide and Energy Independence Package.
Estimates are indicative. Confirm with an installer and your lender.
Solar + EV Savings Calculator: FAQ
How much solar do I need for an EV?
About 1 kW of solar per 4 units of daily EV use.
Can I charge an EV at night with solar?
Yes, with net metering the daytime surplus is credited against night charging.
Is a home charger needed?
Scooters can use a properly wired socket; cars benefit from a dedicated 3.3 kW AC charger.