I AM, not for the first time this year, bewildered. Boris Johnson announces that, from 2032, the sale of all petrol, diesel and hybrid vehicles will be banned.

Fine, but he makes no reference as to how we are to generate the electricity needed to meet the vastly increased demand. Tidal barriers? Geo-thermal units? Solar panels? Or new gas/coal-fired power stations?

I cannot help but think that there is a lack of joined up thinking behind this brave/brash statement.

Daphne Clarke, Richmond