As of December 1, 2025, Wiener Linien (Vienna Public Transport) will convert its first bus line to fully hydrogen operation. This will be the twelfth bus line to operate emission-free. The hydrogen technology leverages synergies within the Wiener Stadtwerke Group (Vienna Public Transport Company) – and Vienna is setting another strong example as a pioneer in the decarbonization of public transport.
From December 1, 2025, ten new, emission-free hydrogen buses will be in service on line 39A. With its many inclines, short distances between stops, and high passenger volume, the route of line 39A is one of the most challenging in the city. Here, the new hydrogen buses from the Portuguese manufacturer CaetanoBus can fully demonstrate their strengths: Thanks to hydrogen technology, they are much lighter than similarly sized electric buses and therefore ideally suited for hilly terrain. With a range of 400 kilometers, they can operate all day without refueling and can even be used during the night.
The new, twelve-meter-long hydrogen bus offers space for 78 passengers, a combined wheelchair and stroller area, and is fully air-conditioned. In recent weeks, the buses have undergone intensive testing, and the drivers have been trained on the new vehicles. Now, nothing stands in the way of the start of the hydrogen era.
Photo of Wiener Linien
Full press release (translated by Google): https://tinyurl.com/yyzpvvsn
