Carbon-Reducing Japanese Transit Systems

MHI launches 'Prismo,' a next-generation Automated Guideway Transit (AGT) system, in Hiroshima as part of its Crystal Mover series. This new system is designed to be more energy-efficient and environmentally friendly, using a unique energy management approach that combines rapid charging at stations with onboard batteries that store energy from braking. This innovation removes the need for power rails between stations, cutting energy use and CO₂ emissions by about 10%.

The batteries, developed with Musashi Energy Solutions and Mitsubishi Electric, allow continued travel to the next station even during a power outage. Prismo also uses a center guidance system, which supports slimmer tracks, reducing construction and maintenance costs.

Manufacturing takes place at MHI’s Carbon Neutral Transition Hub in Mihara, powered by solar energy and producing 97.5% fewer emissions. Overall, Prismo reduces lifecycle CO₂ emissions by over 40%, offering a cleaner, more cost-effective transit solution for urban environments.

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