Now in a few years they will be able to use switch reluctant motors (I'm not supposed to know about these) and the newest battery's from, say Nano technologies. The world will never be the same. Have fun, Dave
PS: the new solar cells that are flexible and can be made in rolls, used as shingles on the roof, what would the oil company's do then. Oh, we still need plastic, Oh yea they make it from Soy Beans. OK, they keep there oil.