GILLIG has partnered with Allison Transmission to offer Allison’s new zero emission vehicle (ZEV)-capable electric-hybird system, the eGen Flex.

The Allison eGen Flex system is capable of improving fuel economy by up to 25% compared to a conventional clean diesel bus and has the ability to operate accessories such as air conditioning and electric heat at optimal efficiency with electric power. The full EV capability of the eGen Flex propulsion system can also eliminate engine emissions and noise while loading and unloading passengers, and while operating in densely populated areas or depots using geo-fencing. The system also offers full electric drive capability for up to 10 miles, depending upon duty cycle and accessory load demands.

“Through this solution, GILLIG and Allison are able to offer customers full EV capability, while maintaining a diesel engine for added flexibility, effectively serving as a bridge solution to EV,” said Rohan Barua, VP of sales, North America at Allison. “The diesel engine can serve as a range extender when needed for longer routes or route flexibility due to unplanned congestion or construction on routes.”

GILLIG has received its first order for Allison eGen Flex electric hybrid-equipped buses from IndyGo, the Indianapolis Transportation Corporation.