But the stalls work in pairs. They all can't deliver 80kw simultaneously. Ever wondered why sometimes you only get 100A? Because your neighbor, who got their first, gets first dibs on the power, and you get the leftovers.
If your neighbor was already at the end of their charge cycle, then they will be drawing relatively little, and you'll get the full current.
"The eight bay setup takes a 12kV, 750kVA feed from the utility, steps it down to 480V three phase on site, pushes that into 2000A switchgear which feeds four (one for each pair of bays) SuperCharger units at 480V/200A."