BAE Systems to Power New Hybrid-Electric Bus Fleet in San Francisco

4/22/2025

BAE Systems is to provide 42 electric drive systems for the San Francisco Municipal Transportation Agency’s (SFMTA) new fleet of hybrid-electric buses. The company will deliver its Gen3 electric drive systems to New Flyer for integration into the vehicles.

BAE Systems’ electric drive technology has been operating on SFMTA buses since 2007. The Gen3 system builds on proven components with next-generation developments, incorporating advanced materials such as silicon carbide (SiC) with a lightweight, compact design to maximize electrical efficiency.

“BAE Systems’ Gen3 system will help the SFMTA achieve its goals by providing dependable, zero-emission capable technology,” said Bob Lamanna, vice president and general manager of power & propulsion solutions at BAE Systems. “Hybrid buses equipped with our technology will deliver immediate benefits, such as reducing emissions and improving air quality, while advancing San Francisco toward a zero-emission transit system.”

The Gen3 system includes a traction motor, onboard energy storage, and smart-power electronics to create a clean, integrated electric propulsion and accessory power system for the buses. The upgraded modular power control system and electric motor use a reduced number of components, connections, and cables.