Comment by SigmundA

There is 400 amp residential service you can get 80 amp 19.2 kw level 2 chargers.

You would need 5 80 amp charger to approach 100kw but with other loads in a large house, I have seen large HVAC systems and elaborate pools with lazy rivers etc that can add up very quickly which is why they had 400 amp service.

100kw isn't really that much, a modern EV can put out 3 times that from its battery pack into the motor for short bursts and easily sustain 100kw until drained.

480v 200 amp 3 phase commercial supply can provide 100kw continuous and would be some thing used in a medium sized office building.