[derriz]

If BEVs capture even a fraction of the market then you've effectively a massive distributed battery which could help soak up the excess renewable electricity. Quick estimate - if 1% of the US passenger vehicles were BEV each with 50KWh batteries on average is 100GWh of storage.

It would require dynamic pricing to the consumer to work as off-peak prices would need to be low or very low to encourage all BEV owners to take on the excess power at particular times of the day.

By the way, unfortunately dynamic pricing seems to be a very unpopular idea as far as I can see.