EV Charging Cost Per KM

At typical home electricity tariff (₹7–9/kWh) and EV efficiency (12–14 kWh/100 km), the running cost is around ₹1–1.5/km. Compare to petrol at ₹106/L and 18 km/L mileage, which works out to roughly ₹6/km. EVs are 4–6× cheaper per km on running cost — though this ignores capex difference, which is typically higher for EVs.

Yes. Home/office AC charging typically runs at residential or commercial tariff (₹6–10/kWh). Public DC fast chargers operated by CPOs often charge ₹18–24/kWh — 2–3× the home rate. For maximum EV economic benefit, charge at home/office and use DC fast chargers only for top-ups on trips.

Compact car: 12–14 kWh/100 km. Mid-size sedan: 14–17 kWh/100 km. SUV: 17–22 kWh/100 km. Electric two-wheeler: 3–6 kWh/100 km. These improve with modern powertrains and regen braking; highway driving consumes 15–25% more than city driving.

Yes. AC charging has typical round-trip efficiency of 85–90% (10–15% loss in the onboard charger, cabling, and battery heating). DC fast charging loss is typically 5–10%. The calculator defaults to 10% which represents a realistic AC-charging average.

Using India's grid emission factor of 0.72 kg CO₂/kWh and petrol's 2.31 kg CO₂/L: an EV consuming 14 kWh/100 km emits ~10 kg CO₂/100 km, vs ~13 kg CO₂/100 km for a petrol car at 18 km/L. As India's grid decarbonises (target: ~50% non-fossil by 2030), the EV advantage widens significantly.

For fleet vehicles running 100+ km/day, EV savings compound fast. At ₹4–5/km delta vs petrol, a taxi running 200 km/day saves ₹800–1000/day — roughly ₹3–4 lakh/year per vehicle. This is before considering the lower maintenance cost of EVs (no engine oil, simpler drivetrain, regen braking reduces brake wear). Most Indian taxi aggregators now target EV conversion within 3–5 years.