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Electric running cost

Derby running cost, range and charging

Work out what it costs to charge and ride the Derby every month, and how that compares with a petrol scooter. Change any number to match how you ride.

Derby

How you ride

1 to 300 km
1 to 31
20 to 500 km

Claimed ranges are measured in test conditions. Traffic, speed, load and weather usually bring it down, so use your own figure if you know it.

Charging

from your bill

Home tariffs differ by state and slab. ₹8 is only a starting example.

0% to 30%

Some electricity is lost as heat in the charger. 10% is our assumption, not a manufacturer figure.

Compare with petrol

Uses the claimed mileage. Pre-selected: the petrol scooter up to 125cc closest in price.

today, in your city

₹100 is a round example. We don't track daily fuel prices.

Running cost results

Charging cost a month ₹89 ₹0.11 per km over 780 km

You save ₹1,536 a month compared with the petrol scooter.

Energy cost over 5 years

Electric
₹5,340
Petrol
₹97,500
Cost of a full charge
₹10
Full charges a month
8.7
Petrol cost a month
₹1,625
Petrol cost per km
₹2.08
Saving a year
₹18,432
Extra price of the electric scooter starting ex-showroom
₹49
Fuel savings cover the extra price in
About 1 month

Battery and charging

Battery capacity
1.15 kWh
Claimed range
90 km
Charging time 0–100%
3-4 hr
Battery warranty
3 Years

Figures are the manufacturer's claims as listed in our specifications.

Full Derby specifications

How this is worked out

Cost of a charge = battery kWh ÷ (1 − charging loss) × price per kWh

Cost per km = cost of a charge ÷ range per charge

The petrol figure is the petrol price divided by the claimed mileage. These are energy costs only. They leave out insurance, servicing, tyres, a possible battery replacement, any purchase subsidy, and the higher price of public fast charging.

Work out the EMI on ₹71,399