According to RAC analysis, the average price of charging an electric car on a pay-as-you go, publicly accessible rapid charger in Great Britain has increased by 21 per cent to 44.55p per kilowatt-hour (kWh) since September.
The 7.81p per kWh increase, from 36.74p at the end of last summer, means that the average cost to complete an 80 per cent rapid charge of a typical family-sized electric car with a 64kWh battery has increased by £4 over this period, from £18.81 to £22.81.
However, the cost of filling a 55-litre family car from empty to 80 per cent has increased even more over the same timespan by £14.54 since last September, from £59.67 to £74.21.
The analysis finds that the cost of topping up electrically-powered vehicles is still nearly half the cost per mile compared to filling a petrol-powered family car.
The average price of charging at the quickest ultra-rapid chargers – which have a power output of 100kW-plus and can deliver a charge to a compatible...