How many vehicle owners are flexible enough to give up driving for several days, in exchange for a $120 payout? I think EVs can smooth out the daily bumps, but

How many vehicle owners are flexible enough to give up driving for several days, in exchange for a $120 payout? I think EVs can smooth out the daily bumps, but we need something to stabilize the grid over longer periods without burning fossil fuels. At least for the US, lots of long-distance transmission should help, because weather events generally don't affect the entire country.