I just read about a guy in NJ who lives in the nation's first solar-hydrogen house. The technology this civil engineer has been able to string together – solar panels, a hydrogen fuel cell, storage tanks, and a piece of equipment called an electrolyzer – provides electricity to his home year-round, even on the cloudiest of winter days:
http://news.yahoo.com/s/csm/20070315/ts_csm/chydro
Sounds great, however, the price tag, according to the news- "The total cost, $500,000, was paid for in part with a $250,000 grant from the New Jersey Board of Public Utilities."
Imagine paying $500,000 per house to get it off the grid. Even at a whopping average of $1,000/month in electrical utilty bills, it would take almost 42 years to cost-justify! That's without factoring in maintenance and replacement as the system wears out!
What are your thoughts on the pros and cons of getting off the grid?