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Solar charging estimator.
Start from your rooftop solar size to see how much of your EV charging it covers and what it saves.
Your details
Adjust the inputs
Enter your rooftop solar size and monthly use to see how much of your EV charging solar could cover and what it saves.
Fine-tune assumptions 1
Your estimate
Here is the breakdown
Solar saving on charging / month₹640₹7,680 a year
EV charging from solar44%80 of 180 units
Solar generation / month360 units80 left after other use
Size to cover everything4.0 kWHome use plus EV charging
Still from the grid₹800100 units of EV charging
What this calculation used
Solar: 3 kW × 4 units/kW/day
Other use: 280 units/month
EV charging: 180 units/month
A monthly energy balance using a typical 4 units per kW per day. It does not model when the car is plugged in, net-metering rules, export tariffs or batteries. Daytime charging gets the most from solar.
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Share your site details with Voltatic. Final product suitability and installation costs should be confirmed from the actual vehicle, datasheet and site conditions.