[philg_jr]

You'll never need that much power at home. Level 2 AC 240V 30-50A is fine for overnight charging.

The way Tesla Supercharging works is by using a large bank of batteries for the heavy bursts of power draw (>100kW) during the initial periods of charging when the battery is warm and at a low percent. The batteries at the station are backfilled with less current from the grid in the background during periods of low use. At least that is how I understand it.

but yeah, maybe trucks with huge batteries may be able to take advantage of it down the road.

[vegardx]

I don't know about the NA, but that is definitively not the case for most superchargers (or any other brand of fast chargers, for that matter) in Europe. Batteries are expensive so this is only done in very special cases. I know they've used battery banks at some of the electrical ferries in Norway, simply because the cost of running new high-voltage power lines was deemed more expensive and the schedule of the ferries makes it very easy to model.

Power grids are quite large, so any fluctuations across the grid is going to be minimal. They are quite good at modeling these things, otherwise we'd have rolling blackouts quite often. For homes it's the last mile that's usually the biggest limiting factor.

But I agree with what you said, for /most/ people anything more than 2kW (so 240V/10A) is more than enough to charge up overnight. A perk with CCS2 is the support for 3-phase power delivery. With very simple wiring and some smart(-ish) electronics you can opportunistically deliver around 11kW to a single car, or divide it with other house appliances or other cars. It's fairly common with 400V TN-system in some parts of Europe, which makes the support of 3-phase in CCS2 very handy.

[wilg]

I don't think most NA superchargers have batteries either, though some definitely do, but I believe going forward they are likely to have "powerpacks" to support pickup and semi truck charging.

[claar]

Just a nit pick: 10A @ 240V isn't enough to charge my Tesla Model Y overnight from empty - but 30A @ 240V (7.2kW) is.

[bombcar]

It could also be useful at homes to regulate power (assuming the grid connections/solar/batteries were all available), allowing you to charge faster when power is cheap, and pull way back (or even backfeed) when power is expensive.

But it's mainly to try to get EV fillups to be gas-station like. If you can recharge a Tesla to 80% in 5 minutes, you've won.