14

Aug

Napa School District gets first PHEV school bus

Posted by admin  Published in EV/Plug-in, Diesel, Hybrids

Last week the Napa Unified School District in California received its first plug-in hybrid school bus. The bus was built by IC Corporation which is a subsidiary of Navistar and a major producer of school buses. The bus uses a parallel hybrid diesel electric powertrain produced by Enova. The electric motor is integrated into the transmission and is designed as a drop-in system that can be easily installed either by the bus manufacturer on the original assembly or retrofitted to existing buses.

Enova has developed two systems: a charge depleting plug-in system and a charge sustaining system.

The latter uses smaller batteries and operates similarly to most current parallel hybrid systems. The plug-in system used on the Napa bus uses a larger battery system that can be charged from the grid and run down during the duty cycle of the bus. The plug-in system can get up to a ninety percent reduction in emissions and one hundred percent reduction in fuel consumption based on the duty cycle.

[Source: Enova Systems]

Original post by Sam Abuelsamid

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