Keolis and the Massachusetts Bay Transportation Authority (MBTA) have launched a tender to acquire seven battery-electric multiple units (BEMUs) for the Fairmount Line in Boston.
Subject to the procurement process, the first train is expected to enter service on the Fairmount Line in early 2028.
The new BEMUs will feature hybrid technology combining onboard batteries and overhead wire power supply. This innovative system will reduce greenhouse gas emission while ensuring frequent service, with intervals of every 20 minutes during weekdays. This technological advancement will offer best-in-class passenger experience, shorter journey times and more reliable service, encouraging travelers to choose public transport as a more environmentally friendly alternative.
A priority project for the Governor of Massachusetts, Maura Healey, this investment in battery technology is one component of an ambitious USD 8 billion investment plan over 10 years to modernise transport infrastructure and make it more reliable while delivering a sustainable transport system. The project will improve the quality of life for the Fairmount Line communities by offering decarbonised solutions tailored to their everyday needs.
For over ten years, Keolis has been operating and maintaining the MBTA commuter rail network, the sixth-largest commuter rail service in North America. Under this agreement, Keolis is working closely with the MBTA to electrify the Fairmount Line.
In July 2024, MBTA approved a USD 54 million plan to bring battery-electric train service to the Fairmount Line, which will ultimately result in more frequent service and lower emissions in surrounding communities. Keolis submitted a proposal to the MBTA in December 2023 with a plan to introduce battery electric multiple unit trains (BEMUs) onto the Fairmount commuter rail line.
In august 2024, the Governor of Massachusetts, Maura Healey, celebrated the USD 54 million plan to bring battery-electric train service to the Fairmount railway.
The Fairmount Line is the shortest of the commuter rail lines in Boston with nine stations, including South Station and Readville and has a ridership of around 3,200 passengers per day. The new BEMUs will mitigate 17,700 tonnes of CO2 per year compared to diesel.
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