Such vehicles eventually could (if the grid were powered
by nuclear plants, dams, windmills, or solar energy) form the
basis for the kind of «green mobility» I wrote about a few
days ago.
Work
by Hoffert, Caldeira, Green and others has show this to be an extremely dubious proposition, just
based on simple mathematics — the world would need to deploy in a round number one
nuclear power plant worth of carbon - free energy every
day for the next fifty years.