[DarkUranium]

At least in Slovenia, many new-ish houses also have a 3-phase outlet or two. I don't know what the maximum wattage of those is, but I do know it's a lot --- and on a single outlet.

[metafunctor]

Many houses here have those as well. The outlets in question are rated for 3 x 230V x 16A, about 11kW.

I'm guessing it would be the same in Slovenia.