I’m not sure I’m going to bother with a home charger
UMC Granny Charger is 8-ish MPH, Wall charger is 27-ish MPH. Losses are a bit higher with UMC.
Worth doing a calc for how long your Overnight / Off Peak charging tariff is and how often you will come home needing more than that. If you return from a long journey, and aren't going anywhere "tomorrow", you can replenish over a couple of nights (i.e. only using Off Peak)
Using only the UMC you will be putting some wear-and-tear on it, so might find yourself without a backup ... and if you need to take it with you ("Just in case") then you have to coil it up and put in the car each time - even in the rain etc. etc. Or buy a 2nd UMC (£160-ish I think)
I’ll be buying a blue commando adapter.
If you already have a Commando socket that will give you about the same charge-rate as a wall charger. Commando sockets used for charging EV are supposed to have more stringent installation requirements, which puts them in similar price bracket to wall charger
what do you use to plan your journeys
ABRP as has been said -
ABetterRoutePlanner - after choosing Make / Model you can set Temperature (to compare Winter / Summer), and weather (wet / dry). I recommend trying that for the recurring longer journeys you do - so see where you would charge, and how long it will take.
I don’t think I’ll be buying a CHAdeMo adapter.
I thought that the old MS/MX adaptor worked with M3/MY?? Might be wrong on that ... but can't imagine why anyone would want one, nowadays
I had only looked at Zap Maps
I find Zap maps very fiddly - zoom-in/out and having to look at individual stalls to figure out what kW is available on a site, and so on. I prefer PlugShare, but I'm not sure that is getting a lot of love any more. Zap Map is UK only.
If you are going somewhere (destination or an unfamiliar 3rd party charger site) worth reading the User Comments (form both sources) to see if there are any recent "Not working")
Do you have to subscribe to individual charge providers?
I'd start with deciding whether you are ever likely to use them
ABRP would help you there (and if you have journeys where Supercharger doesn't look ideal then ABRP has option to include other providers ... you could then decide which one(s) might suit you)
But as
@GeorgeSymonds said Charge Point Scotland is useful where you are (and more universal than what we have Down South
)
public pavement to deal with
If you can park in same place - right outside your house - then I've seen that some councils do a "narrow slit" in pavement, that you can stuff the charging cable into. Various "cable safety covers" and so on ... some car insurance also covers 3rd party liability for that (assuming you have the right sort of "safety protection" for the cable in place
)
Street lamp charging becoming a thing too: