The
fuel efficiency
of an electric car is measured in kilometres per kWh. It is a measure of how far the car can travel on a single unit of electricity. Calculating the fuel efficiency or
mileage
of an electric car is slightly different from a traditional ICE car since electric cars use kilowatt-hours (kWh) instead of litres of fuel or KGs of CNG. Here, we take a look at an easy calculation to determine the mileage of your electric car.
Determine your consumption
Find out how many kilowatt-hours (kWh) your electric car consumed during a journey. For example, if you have a car that is equipped with a 40.5 kWh battery pack and you started your 200 kilometre journey and reached your destination with 50 percent remaining charge. So naturally, it consumed 20.2 kWh.
Measure the distance
Decide on a distance you want to calculate the efficiency for, for example, a 200 km trip mentioned above.
India is faster than other markets to adopt new technologies: Continental | TOI Auto
Use the formula
The formula for calculating electric car efficiency is: Efficiency (kms per kWh) = Distance (km) / Energy Consumed (kWh).
So, if your electric car traveled 200 km and consumed 20.2 kWh of energy during that trip:
Efficiency = 200 km/ 20.2 kWh = 9.9 km/kWh
In this example, your electric car has an efficiency of 9.9 km per kWh for the given trip. The higher the distance per kWh, the more efficient your electric car is.
In terms of electricity bill
For a state like New Delhi, if you charge your EV at a commercial space, it will cost you around Rs 25 per unit (kWh) of energy. However, at home, it is significantly cheaper, even below Rs 10 per unit.
In the example above, the car consumed 20.2 kWh, which means, if you use a home socket to charge your EV, the 200 km-long trip would only cost you approximately Rs 181 worth of electricity.
While EVs are a rapidly growing segment and face several challenges such as lack of charging infra and high upfront costs, it can’t be denied that no other fuel option will give you the maximum benefits such as an EV. With petrol prices soaring up to Rs 100 and even the best of fuel-efficient cars returning a mileage of 25 kmpl, it translates to 50 kms for Rs 200 worth of petrol, which is significantly higher than that of an EV.
Keep in mind that electric car efficiency can vary depending on driving conditions, speed, and other factors. You may want to calculate efficiency for different trips to get a better overall picture of your electric car's performance.
