Can draw being a key. Cars can only sustain their max draw for a short portion of the charging curve, so it would extremely rare (if not impossible) to actually

Can draw being a key. Cars can only sustain their max draw for a short portion of the charging curve, so it would extremely rare (if not impossible) to actually draw 2.5 MW. 10 cars with under 15% state of charge would all have to pull in within 2-3 minutes to a supercharger that started empty. Many charging locations are getting dedicated batteries to smooth off the peaks and valleys of fast charging, turning it into a much more constant draw. When a peak is needed the battery fills in. When the site is more idle, instead of a valley, power is diverted to the battery to ready it for the next peak. Another strategy companies like kempower are using is 25 or 50 kW modules that can be dynamically allocated across the whole site. At the peak of the curve a car gets many modules. As the power a car can take decreases deeper into the curve the extra modules can be assigned to a different plug. If everyone pulls in at low state of charge at the same time the site hits the limits and cars have the throttle. A more typical usage pattern of cars pulling in and out at different times means cars can maximize their charge curve while capping the total draw of the site.