Proterra's (www.proterra.com) EcoRide BE35 transit bus, called the Ecoliner by Foothill Transit in West Covina, California, is the world’s first heavy duty, fast charge, battery-electric bus. Proterra's ProDrive drive-system uses a UQM motor and regenerative braking that captures 90% of the available energy and returns it to the TerraVolt energy storage system, which in turn increases the total distance the bus can drive by 31-35%. It can travel 30–40 miles on a single charge, is up to 600% more fuel-efficient than a typical diesel or CNG bus, and produces 44% less carbon than CNG.
Proterra, Inc.is an American manufacturing company focusing on design and manufacture ofzero-emissions vehicle, all-electric transit vehicles and on-route, fast-charge systems.
Its EcoRide BE35 was the first 30 ft (9 m) or larger all-battery electric busto complete federally mandated Altoona testing. It was also the first full-size, fast charge transit bus to enter revenue service in the U.S. and meet California’s Zero-Emission Bus Rules.
As of June 2015its buses cost up to $800,000 and have a range of up to 200 miles (320 km).
Its manufacturing facility and corporate headquarters are located in Greenville, South Carolina.