[hdevalence]

I don’t know about the nature paper’s assumptions, but supercharging provides far more power than could possibly be supplied to the grid via V2G — for instance, a 100A home service can draw at most 24kW (AC), while supercharging draws up to 250kW (DC). V2G would use the car’s onboard AC/DC converter, which usually tops out at 10-12kW, so it would be relatively slow discharge from the car’s perspective.

Edit: from the paper:

> We assume the home charging power as 1.92, 6.6, 22, and 1.92 kW for small, mid-size, large BEV, and PHEV, respectively

I don’t think the 22kW assumption is reasonable, but the others are comfortably within current L2 AC charging rates.