The 450KW is a single charger for a single vehicle
https://www.electrive.com/2018/12/13...ing-at-450-kw/
At 450KW they can give 60 miles range in 3 minutes, which is a game changer for long journeys. Stop for a coffee for ten minutes and you have another 200 miles of range.
Given the infrastructure required to do this I expect we will see a hybrid approach where these things only exist at motorway services where there is room for the kit, and charging at home is done overnight at lower rates.