What about putting the solar panels on the roof that connects to the Hydrogen making machine that then that powers the refrigeration thingy that compresses the gas into tanks while you are at work, get home, change cylinders and away you go. Wind generator at night!

CSIRO had a hydrogen fuel cell that worked along these lines but instead of burning the Hydrogen you made it into kind of a battery.

I also heard that those Hydrogen cars have trouble storing enough gas to make it worthwhile and that the hydrogen molecules can escape most storage canisters etc...

There are a few cars that run on Hydrogen, and as an LPG user I firmly believe in gas powered cars... mine's great!!!! Who cares about the tank....