North-east Derbyshire and Redditch, in the West Midlands, are among the worst public “charging deserts” for electric vehicles in Great Britain, according to an analysis that found 9.3m households do not have off-street parking where they could install a charger.

More than three-quarters of households that park their cars on the street do not have a public charger for electric vehicles within a five-minute walk, according to the analysis by the Field Dynamics consultancy.

The number of places to plug in is increasing rapidly, with a 46% growth in the number of public chargers across the UK in the year to July 2023, according to the data company ZapMap. However, regulators are concerned about big areas known as “charging deserts”, particularly outside cities, that are not served adequately by the public network.

The average gap between London’s coverage and the rest of Great Britain is growing, from a 32 percentage point difference in 2020 to a 47 percentage point difference this year. In 38 local authorities, less than 10% of households have parking covered by the public charger network.