A friend has a flat in Andorra. That's in Abroadland, and he's going to upgrade his supply to 10kW maximum.
Here is a list of the main electrical items:
Electric water heater (1.5kW)
Hob (2 x 500W, soon to be 4 x 500W) Assume 50% diversity, so 1kW.
Kettle (2.2kW)
Washing machine (2kW)
Microwave...