http://www.siei.org/mainpage.html
Guy decides to take his off the grid home off of its dependence on backup diesel generator (and because it would be a cool project)
Gets some friends together
Team ties together solar panels with Electrolyzer (to convert water into 0xygen and Hydrogen), store the hydrogen in a massive tank, and then fuel a fuel cell and batteries to power the home for 14 days as a backup to the solar panels.