Destination chargers seem a key point. If I could reliably add significant charge while spending time in a store/restaurant I’d probably never worry about range.
Destination chargers will be a huge thing for people on road trips.
If your Mom & Pop coffee shop/restaurant adds a few 22kW AC chargers on their parking lot, those will show up in the "find me a charger" navigators in thousands and thousands of EVs. This _will_ drive new business.
If I have the choice of stopping at Generic Station Chain Alpha to charge vs. a smaller shop on a road trip or vacation, I'll always pick the latter one.
Doubtful most places will have 22kW AC chargers. Most cars won't be able to accept that much AC. That's a 120A circuit by itself on the grid side, and most cars max out at 40A or less right now, because it's more power than that is usually supplied by DCFCs instead (makes the onboard power electronics much cheaper, and you can go to higher power for DCFC easily).
For 120 volt 1 phase land, yes. Over here it's a semi-basic 3x32A 230VAC connection.
Some cars only use one phase (1x32A = about 7kW) Others use all three phases in different formations, usual charging speed is 7-11kW. I think only a few specific Tesla S models and the Renault Zoe can utilise the full 3x32A.
But yea, its mostly a cost-cutting maneuver on the car manufacturer's side to limit the onboard AC charger.
We can have 240V 3 phase, but that's not common in homes, and the standard J1772 plug doesn't support more than a single phase.
I mean, yeah, cost cutting manuever, but it's a sensible one. The rectifier for high power is expensive and hot. Better to move it to somewhere fixed that is potentially higher use, and easier to cool. I wouldn't be terribly surprised to find 80A EVSEs becoming more common for home use, but those will likely be either weird dual cord things, or large vehicles, or have something else special going on (like the F-150 Lightning's V2H charger), or more than one of the above. But I suspect there's a reason why Tesla stopped selling the 80A wallboxes.
It’s not like they all need to be fully functional at the same time. I could see it being only a few are active at a time and it rotates the load as vehicles fill or leave.
If your Mom & Pop coffee shop/restaurant adds a few 22kW AC chargers on their parking lot, those will show up in the "find me a charger" navigators in thousands and thousands of EVs. This _will_ drive new business.
If I have the choice of stopping at Generic Station Chain Alpha to charge vs. a smaller shop on a road trip or vacation, I'll always pick the latter one.