It comes after Prime Minister Boris Johnston announced that a ban on new petrol and diesel models would be introduced in 2035.
Drivers on average spend more than £56,000 on filling up their car with petrol or diesel over the course of their lives.
But if they drove an electric model, they would only spend around £15,000 over the same time period.
The figures are based on a life expectancy of 81, while the costs were calculated on 8,000 miles covered each year at usage rate of 3.5miles per kWh.
The investigation also took into account that 60 per cent of electricity used to charge a car is from plugging in at home when cheaper off-peak rates are usually applied.
Philippe Commaret, deputy managing director for customers at EDF, said: “Tackling emissions from transport will be critical in the fight against climate change and helping to create a greener future.
“We welcome proposals from the government to bring forward the ban on diesel and petrol cars to 2035.”