Going electric

sir–B W Jervis( Letters, November 18) doubts that, by 2030, there will be enough electricity to phase out petrol vehicles, but overlooks several factors.

First, electric vehicles will become significantly more efficient (as petrol and diesel vehicles have). Secondly, predictive technology will ensure that cars have enough charge. Thirdly, over-charged vehicles may be able to feed power back to the grid. Finally, car ownership will decline with the rise of driverless and shared services.

However, given a simultaneous reduction in the use of natural gas, and our unquenchable thirst for powered devices, I do share the concern that not enough long-term planning and investment are taking place.

Phil Stewart London SW14

sir – When my hybrid vehicle was delivered, I was told not to drive through more than six inches of water. The battery is heavy, so is placed on the bottom of the vehicle. I understand that this is common practice.

Is the Government planning to build bridges over all the fords in the countryside? Is drainage after rainstorms to become a priority?

M Annabel Burton Winchcombe, Gloucestershire

sir – It is all very well saying electric cars can be charged at home, if you live in a detached or semi-detached property. But for most people, living in flats or terrace houses with no frontage, this is not an option.

Kevin Pigden Colchester, Essex

sir – When we next embark on overseas military operations, will we not lose the all-important element of surprise if first we have to deploy the Royal Electrical and Mechanical Engineers to install charging points?

Mark Coe King’s Lynn, Norfolk