So as I understand it we don't actually produce enough electricity for our current needs. In fact we are relying on a dodgy deal with the French to build the next nuclear plant which doesn't expect to be on line for about 15 years.
And we are all going to have to scrap our cars and charge 60 million new ones through our existing or modified network - bahahahhahhaha. It'll never happen!
I have been waiting to see this point raised, I work in the electricity supply industry, and your point is entirely valid - new developments are going in, each has to have electric vehicle charging, and space for pushbikes.
one charging point has a capacity about the equivalent of 7 houses (to get the fast charge) and you may get 4 charge points per 50 houses.
a lot of older houses will not have the capacity to even slow charge a vehicle (7-10 hours) due to the size cables that supply the road or estate - for example the cable that feeds the 16 houses around mine on our estate is the same size as a cable we install to feed 1 house- even a power shower would be pushing it round here.
Added to that a lot of the old power stations are coming to end of life - many more have had their operating lifespan increased. are we building new ones - not yet - and when we start it will take 20 years to get back up to capacity.
in London things are worse, we are having to lay up to 6km of cable to get enough capacity to supply new development, in some cases all the way back to the nearest power grid substation (33,000V).
So all this talk of changing over to electric vehicles is a bit of a moot point unless the charging infrastructure and the supply infrastructure are in place first.