I do enjoy reading the comments for and against EV and ICE vehicles, and it seems there may be some misconceptions in terms of fundamentals relative to charging at home...?
I note that there seems to be an assumption that because the main breaker/fuse in modern homes may well be rated at 100 amps might equate to 100 amps being the allowable demand for that house at any and all times..?
It has been quite some time since I was involved in calculating electrical loadings, and it was never a favoured pastime, however the all important part of such calculations was DIVERSITY FACTOR, and which was applied when determining the supply cables dimensions be that to a cooker, a tower block,a housing estate or a factory..... I think I can remember being told some time back in the 70`s that the supply cabling and transformer sizing to a domestic housing estate was calculated at circa 6 amps per house.... which would be considerably less than the main fuse for any house in the estate would be rated at..?
Applying diversity factor allows for average usage expectations and not maximum possible demand.. and as such equates to reduction in cable sizing working out loading on an electrical shower in the bathroom or the loading on the national grid, which it seems up till recently has coped with sudden extra loading caused by TV viewers at the half time whistle been blown on world cup football games or advert breaks in soap operas creating very sudden high demands of electrical energy.
I also note that there were recent failings in the UK distribution network management after lightning strikes that caused mayhem in London and other parts of the country... Yeah we take so much for granted..?
If we take the above into account in very general terms, my hope is that there may be a plan to cope with whatever extra loading is placed upon electricity supplies which may be considerable in time. I suspect that there may well be a requirement for householders to install whatever means of electrical generation might be suitable based upon their home`s location be that solar wind or ground heat source, and of course REDUCE to a minimum their own usage by increasing insulation of the whole home. As for monitoring each households effectiveness relative to supply and demand, I guess your smart meter will provide minute by minute data on YOUR usage to those who need to know...and how that might be controlled in time....?
Yup overnight charging seems ideal but how that works out in terms of demand on electricity supplies overall..... hmm..?
