Living “off the grid” may conjure images of counter-culture hippies or the old-fashioned ways of the Amish, but there’s a growing movement of people who generate their own electricity and live in the lap of luxury without ever paying a utility bill. Correspondent Patty Kim meets some of the estimated 180,000 families across North America using clean energy technology to become self-sufficient and enjoy all the comforts of modern life, off the grid.