[adrian_b]

The speed of charging is irrelevant, because the energy consumption is the same. The power requirements for a charging station is determined by the number of cars charged in a day, not by how fast they are charged.

The fast chargers that achieve charging in a few minutes, and which are indeed able to provide up to 1 MW of charging power, have their own internal batteries, so they take from the electrical grid a power averaged over a long time, not the peak power that they provide to the charged vehicle.

[fhn]

but in an hour, these stations have to charge 7 cars now whereas in the past, they only had to charge 1. So power requirements for these stations went up by 7x. Sure, they can fill up at night but they would need a lot more batteries on standby.

[crote]

> in an hour, these stations have to charge 7 cars now whereas in the past, they only had to charge 1

Why? Where do those extra cars come from? In reality the change you're going to see is from spending 30 minutes to charge 1 car followed by 30 minutes of sitting idle to spending 5 minutes to charge 1 car followed by 55 minutes of sitting idle.

Or, alternatively, go from 6 stations each spending 30 minutes / car to charge 12 cars per hour to 1 station spending 5 minutes / car to charge 12 cars per hour.

The electricity demand only depends on the number of miles driven. Same with ICE cars: the speed through which fuel comes out of the gas station's nozzle doesn't impact how much fuel you consume during your commute, or how often the gas station needs to be resupplied.