On 11/04/2021 09:53, Anna Noyd-Dryver wrote:
Rather than laying a whole new cable, can't the existing cable supplying
every house be used?

Is there enough spare capacity in the cable for the extra load - the
house's load will have quite possibly increased since the electric
supply was originally connected.

Many people do not have a drive to park in when charging so the supply
is needed at the roadside or in a small car park and has to be one that
can be used by anyone.