The Grid Limit feature

The myenergi zappi includes a number of protection features.  One of these is the "Grid Limit" which protects the fuse on the electricity supply. 

zappi controls how much power the electric vehicle (EV) can take so that the supply fuse is not overloaded.

This feature is accepted by the UK DNO's and means that, in most locations, zappi can be installed with the need to upgrade the electricity supply.