Stadler in Szolnok

Stadler and German Aerospace Center team up for development of scalable battery packs

Stadler and the German Aerospace Center (DLR) have joined forces for the development of scalable battery packs for battery-electric multiple units (BEMUs), the Swiss rolling stock manufacturer announced on Friday.

The two entities will be working together as part of the so-called MOSENAS project, the German acronym for ‘modular, scalable energy storage for sustainable regional rail passenger transport’. The project is supported by the German ministry of Digitalisation and Transport with a 5,3-million-euro grant.

According to Stadler and the DLR, a scalable battery concept is important in that the system can be adapted to certain networks or even routes. This means that trains that only cover short distances can be fitted with smaller versions of the same battery pack installed on trains that cover longer distances. This in turn saves weight and optimises space.

The project team also aims to study how to match route-specific operational requirements to the most appropriate battery system in terms of performance characteristics. Batteries tend to lose capacity as they age, which needs to be factored in ahead of installation.

Stadler and the DLR hope that the scalable battery system will enable the operators to also deploy BEMUs on routes without overhead lines where it was previously not economically feasible to run battery-electric trains. The companies will therefore also study options for charging and load balancing.

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Author: Nick Augusteijn


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