Some suppliers/installers will say your house/flat needs a 100A fuse, you don't (80A is fine for most)
I agree its usually not a problem, but a lower rating fuse may indicate a pending problem if Car Charger is being added to existing high power consumption stuff - multiple induction hobs/ovens, electric showers etc. If Car Charger is the only power hungry item, and particularly if used overnight, unlikely to be a problem.
I haven't read of any, but it seems likely to me that adding Car Charger is likely to expose any problems with (e.g. "old") wiring which may have gone unnoticed - which are unlikely to be cheap to resolve
An option, if the overall power rating is a problem, is to fit a device to cut power to the car-charger when the system overloads - so if you normally charge at night, but might during the day, potentially at the same time as all the kids languishing in showers ... then a cutout-device may be the answer
If I can get the 32A adapter for UMC
Is Model-3 UMC 32AMP capable? There has been some chatter about it (presumably reduced-cost for model-3 compared to original UMCs for Model-S/X) but I can't remember what the upshot was. The UMC is expensive, so worth comparing cost of wear and tear against cost of Wall Charger, and as you say wrapping it up to take with you when it is wet and cold is not very pleasant
I presume I can achieve the same kind of control from TeslaFi?
TeslaFi [
and others like it] can schedule Start/Stop time for charge, depending on GPS location (e.g. "Charge Midnight to 4AM only if at HOME")
My understanding is that Smart Charger should, in future, be able to get better time-of-use tariff by starting/stopping within an overall "time window" to best achieve balanced load for the grid - and in return giving you a cheaper tariff. In some places, e.g. Texas, TOU tariff can be zero - oversupply of renewables for example.
