What is a good km per kWh?
As it suggests, the kilometres per kWh is a measure of the distance your car is averaging for each kWh of energy from the battery. A very general average is around 4. EVs might manage 6. Wh or higher and some performance models or larger SUVs can be lower. Wh is 160 miles. This is the WLTP-certified range, which is based on a standardised test all electric vehicles go through in Europe.
How many kWh per 100 km electric car?
We can use the average driving distance of about 14,000km per year, and a typical ev efficiency of 17kwh/100km (this equates to ~7l/100km in a petrol car) to get a ballpark though, of about 2,400kwh per year per car. In general, yes, evs are cheaper to run than petrol cars over their lifespan. This is due to a number of factors. First of all, electricity is typically significantly cheaper than petrol or diesel per mile driven. This difference has become even more pronounced with recent energy price rises affecting fossil fuels.