UQM Technologies announced that Proterra LLC will showcase a prototype of Proterra’s its HFC 35 composite body, zero-emission, battery-dominant hybrid-electric transit bus at the American Public Transportation Exposition in San Diego. The bus is powered using UQM’s PowerPhase® 150 propulsion system. The HFC 35 can carry 37 passengers, and it will make it’s real-world debut as part of a nationwide trial sponsored by the FTA starting in 2009.

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