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9/10/2025
The San Bernardino County Transportation Authority (SBCTA) will enter into service its first hybrid hydrogen fuel cell-battery electric passenger train on Sept. 13.
The train will travel the 9-mile Arrow Corridor of Metrolink's San Bernardino Line between San Bernardino and Redlands, California. The two-car trainset, a zero emission multiple unit (ZEMU), is North America's first self-powered, zero emission passenger train that meets Federal Railroad Administration (FRA) requirements, SBCTA officials said in a press release.
Water vapor is the only emission generated from the propulsion system. SBCTA received $60.2 million in state and local funding to purchase the vehicle, complete testing and initial studies, retrofit an existing maintenance facility and construct a new fueling station.
Stadler Rail built the ZEMU, which arrived in San Bernardino for testing in June 2024.