- visiting family, 2 lots, both over 3 hours each away
- mountain biking, 2 to 5 hour each way
- friends wedding, 3 hours
- airport run, 4 hour round trip … twice
- overnight work trip 5 hours each way
That’s a pretty common 2/3 month period for us. Oh and when we had the PS2 there was a daily commute to one of two office between 30 and 60 minutes each way.
In some places 3-phase power is very common (e.g. my small apartment in Copenhagen has a 3-phase supply), though in the UK it's less common. The upgrade might be £1000, or considerably more.
With 7kW (1-phase) it will be OK for a lot of trips — charging in 11-12 hours. This is more power than a normal domestic socket provides. In some countries there's a higher-power socket in the garage already, otherwise it's something the electrician needs to install.
A normal domestic socket is around 3kW.