The cost of charging an electric vehicle (EV) can vary depending on your location, electricity rates, and the specific model of your EV. In Australia, the average price for electricity is around $0.30 per kilowatt-hour (kWh).To estimate the charging cost, we can use the average energy consumption of an EV. Australian Electric Vehicle Association president Chris Jones estimates most electric sedans and hatchbacks should average between 10kWh/100km and 15kWh/100km to be considered efficient. In addition, The Electric Vehicle Database states that an average consumption for an EV is 20kWh/100km. Multiplying this by the electricity rate, it would cost approximately $6 in electricity charges to travel 100 kilometres in an electric vehicle.In comparison, the average petrol car in Australia uses 11.1 litres of fuel to travel 100 kilometres, based on data from the Australian Bureau of Statistics. Considering a petrol price of $1.50 per litre, the cost of travelling 100 kilometres in a petrol car would be $16.65, which is substantially more expensive.