[vardump]

I think in Europe other than older buildings, garages have mostly 400V 3 phase. At least in northern parts, probably a lot worse in southern parts.

[hef19898]

Land lines are 400 V 3 phase in Germany, as you need those for the elecrric ovens and that is what utilities deliver. Standard plugs and wiring are 240 V. So every garage would at least have 240 V, if there is a plug, and 400 V can be installed.