A typical kitchen water-boiler uses 1.5kW. My EV, when charging at home, charges at 5kW.

If you have to do a fast charge because you’re on a road trip, you might choose to accelerate battery degradation by charging at 50-200kW, but that’s the rare and expensive exception to the rule.

What’s hard about national events is that historically power generation hasn’t been good at load following. If you know you’re going to charge 2 million EVs every night, there’s very little load following needed, it’s a steady load.

It’s still a lot more energy than current grids can supply, so there’s no doubt that more production and transmission is needed, but the engineering to achieve this is not some radical departure from current techniques.