Good point. Most homes around here are wired with 200A, 240V power, so a 20kW charger would eat up about half of that. So a 7.2kW charger is about 2500 times s

Good point. Most homes around here are wired with 200A, 240V power, so a 20kW charger would eat up about half of that. So a 7.2kW charger is about 2500 times slower than a fast gas pump. Even slow gas pump (say 10MW), used with a conventional engine (say 20% efficient), compared with a state-of-the-art fast charger (say 200kW) would still be ten times as fast in a miles-per-hour contest. EVs make up for this somewhat by being able to charge anywhere that has a decent supply of electricity for hours at a time, but it still shows you what they're up against.