Do certain EVs require a minimum kWh homecharge box? Ie, some 7kw and others 22? If so then am I right in thinking that when going for your first EV through Motability then it might be worth pushing the boat out a bit more than you usually might (assuming you can afford to somehow) on a model that requires ( or comes with) a 22kw, so that you then have the better one going forward ( assuming you’re likely to be having further EVs on, or even off, the scheme)?
Currently, only some larger houses have a 3 phase electricity supply that would be needed for a 22kW charger
Most homes will have a single phase of a supply shared between houses, so you neighbour will probably have a different phase to you.
Single phase will get you either a 3.7 (16 Amp) or 7.4kW (32 Amp) option, you want the 32 Amp if possible.
If you only have a main fuse that’s small (60Amp or less), or your cabling is ancient, then you may be restricted to the 16 Amp.
The “granny charger” cables you see that plug into a normal wall socket in your house are supposed to be rated 10 Amp max here in the UK, the idea being that if you charge on a 16 Amp house circuit there’s still some overhead, and pulling 10 Amp for an extended number of hours will hopefully not overheat the cables as fast as pulling the usual 13 Amps would. Granny chargers can be obtained that can be set to anything from 6 Amp to 16 Amp, although you’ll get a euro type plug on those & they’re not recommended (you don’t want a fire starting in the middle of the night as your cables melt inside the walls).