July 16, 2009 — Hydrovolts is one of 12 semifinalists in the Pacific Northwest Clean Tech Open. The company’s flip wing turbine marks new levels of efficiency in generating energy from flowing water. A generator can be dropped into a canal or stream in an afternoon with minimal site preparation. Denis Du Bois interviews Burton Hamner, co-founder and President. (podcast) (continued at http://energypriorities.com/)