The consumption of an electric vehicle is expressed in kWh (kilowatt-hour) per 100 kilometres. On average, it is around 15 to 25 kWh/100 km depending on several factors such as speed, driving style, vehicle weight, ambient temperature, the aerodynamics of the car or even the typography of the vehicle. the road.
What is the kilowatt hour?
The kilowatt hour refers to the energy supplied by the battery to the engine of your vehicle, that is to say the amount of kW that the battery can provide in one hour of use. In theory, with a motor with a power of 70 kW, and a battery with a capacity of 70 kWh, you should be able to drive at full load, using all the power, for a period of one hour.
The capacity of the battery, expressed in kWh will determine in a way, the “size of your tank”. The larger it is, the greater the autonomy of your car will be.
Calculate the range of your car
Between a very small city car and a sports car, the average consumption can vary between 13 and 28 kWh/100 km. By simply taking the capacity of your battery, and its average consumption, you can quickly calculate the expected autonomy. We will divide the battery capacity (kWh) by the average consumption (kWh/100 km) before multiplying the result by 100.
For a vehicle with a capacity of 50 kWh which consumes 25 kWh it will give: (50/25)
x 100 = 200 or 200 km of autonomy.
The real capacity of your battery
It is important to distinguish gross capacity from net capacity. A battery announced at 70 kWh will actually be 67 or 68 kWh. It is also necessary to take into account the consumption of the accessories of the vehicle. Not all of the battery’s capacity is dedicated to keeping it going. We are talking here regarding lighting, heating, screens, etc.
