[USNBandit]

Dude, it will come from all the solar panels and windmills we are going to put in our backyards.

[Orangedog]

Actually, one or several solar panels could be installed on the roof of the garage to extract smaller amounts of hydrogen along with the big honkin' extractor inside the garage that is hooked up to the power grid. Solar wouldn't generate as much, but it could help. Pure solar is a non-starter with the current tech.

Imagine how some of the home owner's associations would react to windmills in their neighbor's backyards! I'd almost pay to see them geek over THAT being built next door!