There is a danger that the number of people switching to electric vehicles (EVs) may fall behind in some areas of the UK due to a disparity in charging costs, new research has revealed. British Gas submitted Freedom of Information requests to more than 400 councils across England and Wales and found drivers in the South of England are being charged 28% more to charge their EVs than those in the North, Midlands and Wales using the cheapest council-owned chargers.