How big is that roof if you want to charge 4 cars (quoted 2*...

How big is that roof if you want to charge 4 cars (quoted 2* 75kW generators).

Will never perform at 100%, so you should oversize the number of panels.

To keep the calculation easier..Say a panel size is 1 m *2m & have output of 400w (under ideal conditions)

If you want a 'fast' charger, output deceases with each car added (ie now a slow charger).

Unlike servos, when with say 20 vehicles refueling, does not slow down when more cars are added to the queue & getting filled.