@John Imps – I haven’t looked at this closely as it is not yet an option for me and I have just had solar pv installed and waiting for the battery to be installed. As far as I am aware it comes down to the power cable that needs to be bi-direction from your fuse box to the car and back, along with a compatible wall box and a compatible EV.
If you are looking to charge your EV from solar pv then do your sums, and you can only really expect this from March-August, forget about it from Nov to Feb as you will not have enough solar. It depends on the size of your car battery as well and how much your average daily kWh usage is for your home. You will really want your solar to power your home first and then decide what you do with any excess (back to the grid, recharge a battery or charge your EV?).