Gone are the days when “fringe technologies” meant things like solar energy and wind power. Those and other alternative energy approaches have all gone mainstream, to one degree or another, and they’re gaining more steam. However, the fringe is still out there — so-called alternative-alternative energy technologies. Some are closer to application than others; some depend on geographical factors for practical use. “We start paying attention once they reach the point of showing some promise,” said Gartner analyst Zarko Sumic.
