Boston, Massachusetts

Boston Orders Electric-Hybrid Systems from BAE for New Buses

The Massachusetts Bay Transportation Authority (MBTA) has ordered 194 electric-hybrid buses using the BAE Systems Series-ER extended range propulsion system from BAE Systems.
Boston Orders Electric-Hybrid Systems from BAE for New Buses
Courtesy of BAE

The company is delivering its Series-ER system with a higher capacity battery which it says will help Massachusetts reduce emissions and noise pollution on its transit bus routes. The Series-ER system – which uses electric motors instead of diesel engines to power the buses - builds on BAE’s technology that is saving more than 22 million gallons of fuel and 250,000 tons of CO2 each year across the globe, according to the company.

Traditionally, a transit bus powers its wheels with a diesel engine, which produces harmful emissions and uses large amounts of fuel. Instead, electric-hybrid buses are propelled by an electric motor, with power provided from a highly efficient battery system. The battery is recharged by both an on-board generator set, using a down-sized internal combustion engine and by regenerative energy produced when the bus slows to a stop.

By moving to a Series-ER system, a fleet can operate a portion of the day electrically with the engine off, reducing maintenance, idling, fuel use and emissions. Transit operators are embracing this technology because it gives them zero emission travel without the need to stop and charge the bus, and it eliminates the need to invest in costly charging infrastructure. Cities like Nashville are using Series-ER technology to drive on battery-electric power near hospitals, schools, and in the downtown tourist area, and Boston plans to use the technology to drive through their tunnels with zero emissions.

“Our new technology provides Massachusetts with an innovative and practical electric-hybrid solution,” said Steve Trichka, vice president and general manager of the Power and Propulsion Solutions business at BAE Systems. “This system provides clean electric operation that can be rapidly scaled now to help Massachusetts reap the benefits seen in thousands of buses worldwide.”

Tags: Hybrid , Fuel , CO2 , Saving , Transport
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