Depends on where the electricity is coming from, and debatable if you account for all the externalities in producing the batteries, solar cells for photovoltaic

Depends on where the electricity is coming from, and debatable if you account for all the externalities in producing the batteries, solar cells for photovoltaics, rare earth mining for magnets, and countless other stuff for way more silicon needed to regulate all that stuff to work efficiently together. Be it for in vehicle control, or smart grid.