Hydrogen house

Check out a slide show from Scientific American about a guy who runs his entire house and car on hydrogen produced by solar power.*

Three things I’d like to know:

1. Startup cost
2. Time to recuperation of startup cost
3. Safety of an aluminum intensive car

I’m guessing that the startup cost would make such a system prohibitive for most people (not to mention the fact that most people aren’t engineers with the know-how to set up and maintain such a system themselves). Other problems include having enough room, and willingness to have eyesores in one’s backyard.

Still, fair play to the hydrogen guy.

—–

*-He uses solar power for the house, then stores the extra energy by using it to produce hydrogen for hydrogen powered engines.