Allison Transmission Holdings, Inc. announced that in partnership with Cummins and GILLIG, has delivered 24 electric hybrid buses to IndyGo, the Indianapolis Public Transportation Corporation. Allison’s H 40 EPTM electric hybrid propulsion system is paired with the Cummins B6.7 in GILLIG buses. This system improves fuel consumption by up to 25% versus a conventional diesel bus and reduces CO2 emissions, helping to protect the environment. In addition, beginning in 2022, Allison’s next generation eGen Flex™ electric hybrid system with geofence technology will be integrated into three of IndyGo’s new buses, providing full electric operation for up to 10 miles, multiple times per route, depending on the duty cycle. This will enable IndyGo buses to eliminate engine emissions and noise by operating the bus with the engine off when the bus is stopped for loading and unloading passengers at bus stops and in dense pedestrian areas, as well as when moving through zero emission zones and bus depots. The Allison eGen Flex propulsion system is a resilient solution that provides fleets with full electric capability when required, as well as the ability to operate in hybrid mode when needed for longer routes, unplanned congestion or an inability to recharge due to power grid challenges, as it does not require any external charging source for its operation. With the eGen Flex, Allison has created a solution that can automatically and seamlessly pass through “Zero Emission Zones” by transitioning between electric and diesel engine propulsion.