There is the possibility that someone through no fault of their own could have a max 60/80amp and they EV charger refused or limited to 3.6kWh which would mean charging could be a real pain at home.
The DNO will unlikely refuse the installation of a charge point providing the correct proceedures are followed. DNO’s are likely to standardise domestic one phase properties to 80A. Some have already implemented this. Should your DNO believe you maximum demand will be 20kVA (rounded) or over, the DNO will supply either split or three phase. (15kVA rounded is a standard domestic supply) Mark’s maximum demand is only 12A above 80A, he is unlikely to have a shower (electric) during early hours, His demand during this time is around 57A well below 80A. Diversity plays a big part. The use of a CT clamp acts as a safety measure incase Mark turns eveything in his house on at the same time.
DNO will supply either split or three phase
Unfortunately this wont be supplied FOC