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The city of Sion and PostBus are electrifying Bus Sédunois

By the end of 2024, the entire urban public transport network in Valais’ capital will be electric. Thanks to its partnership with PostBus, Sion is set to become a pioneering town in Switzerland. A major commitment has been made to reduce carbon emissions.

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A Sédunois bus is parked in front of the postbus station in Sion.
The Bus Sédunois vehicles will be emission-free by the end of 2024.

The project is supported by the Canton of Valais’ Office for Mobility and is part of the Canton of Valais and the Swiss Confederation’s joint commitment to decarbonize public transport. The project also meets Swiss Post’s climate and energy targets of net zero emissions by 2040.

The “Bus Sédunois” vehicles, operated by PostBus, carry around 1.8 million passengers and cover one million kilometres a year. For the company, the switch to electric power for the town’s 20 buses represents the biggest transformation of a network to date. Preliminary analyses show that all the “Bus Sédunois” routes are particularly well suited to operating a fleet of electric vehicles. This will result in savings of around 1,000 tonnes of CO2 per year. As well as reducing carbon emissions and air pollutants, this modern means of transport is much quieter for passengers, local residents and drivers.

The new fully electric vehicles produced by Mercedes will be able to run all day without recharging. For this reason, only the depot will have charging stations.

Sion will become one of the first Swiss towns to have an all-electric public transport network. Reflecting this dynamism, a number of innovative projects linked to the network rollout are set to emerge.

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