[ben_w]

If we were to try to switch all vehicles to EV “overnight”, we’d almost certainly also mandate PV on all car rooftops.

I have observed that discussion of this solution normally divides into these two groups:

(1) “That’s ridiculous, a car covered in with PV will only make enough electricity to go 10-30 miles per day!”

(2) “That’s a great idea, a car covered with PV will make enough electricity to go 10-30 miles power day, and most people only go 12-35 miles per day!”

When there is serious concern if the grid can cope, we should take all the mitigations we can get. Reducing aggregate charging demand by 90% is good even when every single driver still needs to use an external charger.

[jimrandomh]

Car rooftops are a bad place for PV cells because in hotter climates, people park in the shade to avoid overheating their car's interior.

[ben_w]

Suboptimal, but this was a hypothetical about “overnight”.