alt.energy.renewable

-> When there is an actual factory, producing actual cars _that run on
-> air_, get back to us. I won't be holding my breath.

There are vehicles in production that run on lead-acid accumulators.
Compressing air to a couple of hundred atmospheres stores energy with
a similar density (joules per cubic metre, or whatever). So it is
plausible to me that a vehicle could be manufactured that runs on
compressed air. It would be similar to a battery-powered car, though,
small, slow, and with very limited range.

I'm intrigued by how they make the air-powered motor run efficiently
while the pressure in the air tank decreases. How can it be as
efficient when the pressure is 50 atmospheres as it is at 200
atmospheres?

dow