I put up a post yesterday with some helpful tips etc (admin maybe make this sticky?) when it comes to electricity supply etc.
Motability will only provide a free charger if you park within your property boundary, otherwise they give you a BP Pulse card which can get you free but slow public charging.
If you are going to have to purchase a charger after much research you will be hard-pressed to beat the Hypervolt Home 2.0. Installers love them and the customer service and feedback looks top draw. I’m looking at £1100 supplied and fitted but if I get favourable electricity rates I can recover this in just over a year by the cost difference compared to diesel (10k miles).