I know chargers at work are 22 kW, seems we have three independent supplies, and when it was looked at with idea of removing the supply, the cost of removal was quite high, so having car charging points means it pays for the standing charge for the supply. Seems was designed to be factory units, now a dumping ground for future projects, so large electric supply not required.
But watching U-tube video's it seems there are a number of requirements to ensure the charging points do not present a danger, or over load to the system, and each manufacturer seems to have adopted different methods to comply, some which include switch off the earth, which seems odd, but the problem is TN-C-S supplies and how to make them safe for use out doors.
A few years ago the charging point was considered in the same way as a caravan power point, but to park a caravan one needs I think 2.7 meters gap to the building at closest point, so this caused a problem with car charging points, having a 2.7 meter gap was a fire safety thing, so can't see why a car would be allowed closer, but seems the Zappi method is to ensure disconnection if the supply voltage is not within the 207 to 253 volt window and if there is a DC current over 6 mA, however the Zappi instructions do point out this was not included with early versions, and early versions needed a type B RCD.
It seems some of the chargers monitor the power used by the home so as not to exceed the DNO fuse rating, but the point is they are not all the same, so until the charge point is selected all one can really do is provide pipes to thread the cable down when one comes to install it. Also issues claiming the grants until one has signed to buy the car.
I was riding up the street on my e-bike, and I do wonder how most the residents would charge an electric car, cars are parked where really they restrict access, since there is a parallel road it does not cause too much of a problem, but clearly planning permission could not be granted for charge points, there is no disabled access as it stands, but no one in street uses a wheel chair, so no one worries, but the hills mean mobility scooters can't use the parallel road as too steep, I know as I have tried it.
So it seems likely there will be more rules, most the houses had garages to start with, but the drive was so steep the slightest bit of snow and could not get car out or in, so most converted into rooms, so question will be asked who granted permission? Both my drives rear and front are not usable in snow, but at least I can park car 10 meters or more from my house using rear drive, but front drive around 4 to 5 foot only, but at least I have a drive or two.
But this means there will be likely more rules and regulations in the future, so to try and guess what they will be is rather pointless, Richard Hamond's crash and the car burning for days has highlighted the problems of electric cars, so there may be rules in the future over where cars can be charged.
this is the problem, although rare, it may result in new rules as to how close cars can be to a property.