On Tue, 29 Mar 2011 00:01:32 +0100, Tim W wrote:

There is a lot of pressure on the motor industry to develop an electric
car which can charge up all night and run round town all day.

And what's with this facination with electricity. You could use
compressed air or liquid air. There is a "technology demonstrator"
for a small city type compressed air driven car somewhere and small
commercial scale liquid air power plants are being devleoped/built.

TBH I'm not quite sure how liquid air works as a fuel, it's down to
the phase change and expansion but I struggle with where the energy
comes from to liquify the air in the first place. I have niggly doubt
it's a bit like hydrogen as a fuel, you need to shove just as much
energy in to split water as you get back out later (less losses).

--
Cheers
Dave.