Comment by cogman10
10 hours ago
> Some US homes could draw 100kW if charging multiple EVs
No. Most US homes are on 200 or 100A service. 200A tops out at 48kW
You won't find many home chargers that are more than 60A.
10 hours ago
> Some US homes could draw 100kW if charging multiple EVs
No. Most US homes are on 200 or 100A service. 200A tops out at 48kW
You won't find many home chargers that are more than 60A.
As the sibling comment notes, these days 400a residential service is available as an option in many places.
One home actually consuming close to 400a is pretty rare, but it's possible mainly in gas-free builds, if using things like electric tankless water heaters (a bit niche) in addition to multiple EV chargers, a range, dryer, etc.
Maybe a better way to convey that 100kW is “small” is to point out that industrial sites all around us, such as smaller datacenters, are well into the MW range.
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.