Ewan Pritchard is the hybrid program manager for Advanced Energy, a small nonprofit energy-consulting company in Raleigh, N.C.  In 2002, Pritchard shared his dream of doubling the mileage of school buses and he was almost laughed out of the industry.  Ewan explains how his dream is now a reality with 15 plug-in hybrid school buses deployed across the nation.  Listen to how plug-in hybrid technology saves school districts money and offers a healthier environment for our children.