Alternative fuel locomotive

In the United States, BNSF Railway tested a hydrogen powered switcher locomotive in 2008 and 2009, in partnership with the United States Army.^[2]

Several railroads have tested battery electric locomotives, which operate based on rechargeable batteries and have zero greenhouse gas emissions.^[2] Compared to conventional diesel locomotives, battery electric locomotives are quieter and cleaner, but require charging stations to support their use.^[3] At least one instance of a battery electric locomotive, for the Bessemer and Lake Erie Railroad, was funded by a state government grant supporting improvements to air quality.^[3] As of 2022, battery electric locomotives are only a small part of the locomotive fleet in North America, which numbers approximately 39,000.^[3]

• List of low-emissions locomotives