Huge citation needed.
> most cars are parked during the day
Yes, parked somewhere where there is no V2G infrastructure. By the time we pay millions of V2G charging stalls, we would be better off just buying actual grid scale storage.
> this suggests an average of just under 18 trips per car every week.
So cars on average are used multiple times a day. OP's claim that most cars aren't used is ludicrous.
Huge citation needed.
> most cars are parked during the day
Yes, parked somewhere where there is no V2G infrastructure. By the time we pay millions of V2G charging stalls, we would be better off just buying actual grid scale storage.