Transit Agencies Select Allison eGen Flex
Allison’s eGen Flex system is the next generation of Allison’s proven H 40 EPTM electric hybrid propulsion system.

Allison electric hybrid systems have accumulated more than 3 billion miles of operation.
Photo: Allison Transmission
Allison Transmission announced the addition of several public transit agencies in the Midwest that are selecting the Allison eGen Flex electric hybrid propulsion system for their buses.
The Metropolitan Evansville Transit System, which provides public transportation services for Evansville, Indiana, will integrate GILLIG buses equipped with the eGen Flex into its fleet. In addition, GO Transit, based in Oshkosh, Wisconsin and the Muncie Indiana Transit System have selected eGen Flex-equipped New Flyer buses for their fleets.
“Allison is proud to partner with public transit agencies across the Midwest to support their efforts to reduce carbon footprints and dependence on fossil fuels in order to protect the environment and enhance quality of life for their passengers,” said David Graziosi, Chairman and CEO, Allison Transmission. “As fleets move to electric hybrid and full EV technology to support sustainability goals, Allison is pleased to be a partner of choice due to our ability to deliver innovative technology specifically designed to meet the needs of the transit industry.”
In addition to this recent growth across the Midwest, Allison announced in June the delivery of the first buses equipped with the eGen Flex electric hybrid propulsion system to IndyGo, the Indianapolis Public Transportation Corporation.
In-use testing of eGen Flex confirmed the engine was off over 50% of the time the bus was in operation. As a result, the eGen Flex equipped bus operated in full EV mode for over half of its day. Allison’s eGen Flex system is capable of operating in electric-only mode for up to 10 consecutive miles or 50 minutes, multiple times per route and per day. The system’s geofencing technology eliminates engine emissions and noise while loading and unloading passengers in dense pedestrian areas and in zero-emission zones and bus depots.
Allison’s eGen Flex system is the next generation of Allison’s proven H 40 EPTM electric hybrid propulsion system, which has been operating in transit buses since 2003. Allison electric hybrid systems have accumulated more than 3 billion miles of operation, saved more than 380 million gallons of diesel fuel from being consumed and reduced CO2 emissions by over 3.8 million metric tons.
More Bus

New York MTA Plans Largest Bus Fleet Upgrade in More Than a Decade
The agency is seeking manufacturers for 650 new CNG buses to replace aging vehicles, improve reliability, and advance its broader fleet modernization strategy.
Read More →Building a Flexible Path to Transit Electrification
John Hroncich discusses BAE Systems’ modular and scalable approach, lessons learned from decades of real-world operations, and how agencies can identify electrification strategies that fit their fleets.
Read More →
Bus Tech Talk: Keeping Transit Technicians Ahead of the Technology Curve
LA Metro’s Obed Mejia discusses technician training, evolving maintenance technology, fleet replacement, and strategies for getting the most out of today’s transit fleets.
Read More →
Biz Briefs: RIPTA Unveils New Frontrunners, Clevland RTA Adds New Siemens, and More
In METRO's latest installment, we take a look at recent news from Siemens, Prevost, Dodge, and more partnerships making headlines across the transportation sector.
Read More →
People Movement: Holly Arnold Joins Transdev and More
In this edition, we also cover recent appointments and announcements at Pace, CamTran, MCI, and more, showcasing the individuals helping to shape the future of transportation.
Read More →
The High Cost of Transit Buses: Industry Leaders Look to Procurement Reform
Transit leaders and policymakers examine how standardized bus designs, streamlined procurement, and predictable funding could help agencies stretch budgets and deliver better service.
Read More →
The Business Voice Behind Public Transportation
As chair of APTA’s Business Members Board of Governors, Ray Melleady explains how more than 850 business members are partnering with transit agencies to advance funding, innovation, and industry-wide collaboration.
Read More →From Surviving to Thriving: Building Stronger Transportation Organizations
Bus Business Consultants founder Brian Dickson shares lessons on leadership, organizational health, and creating options for long-term success in a changing transportation industry.
Read More →
Finding the ‘Happy Medium’: Optimizing Maintenance Without Sacrificing Reliability
The key to maintenance optimization isn’t doing less work—it’s doing the right work at the right time on the right assets.
Read More →
LA Metro, City of West Hollywood, and Partners Advance Smarter Bus Lane Enforcement
The award-winning partnership combines AI-powered detection with human oversight to improve bus reliability, accessibility, and enforcement efficiency.
Read More →