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First facade solar system in Floridsdorf: A step towards a green future!
On October 17, 2025, the first facade photovoltaic system went into operation at the Floridsdorf U6 station to promote renewable energy.
First facade solar system in Floridsdorf: A step towards a green future!
A new chapter in sustainable energy is being written in the heart of Floridsdorf. The first glass facade with integrated photovoltaic cells was inaugurated at the U6 station. This pilot project by Wiener Linien in collaboration with Wien Energie has been running since the summer and has already produced impressive figures: by the end of September, over 120,000 kilowatt hours of solar power had been generated. Vienna is thus taking a further step towards more environmentally friendly and innovative city transport.
The glass facade has an impressive area of around 1,300 square meters and is not only a practical but also an aesthetic highlight. Around 60% of the area is used to generate electricity and provide shade. The remaining 40% remains transparent thanks to the semi-transparent technology, allowing for an inviting view of the outside. This represents a successful compromise between functionality and design, as Wiener Linien and Wiener Energie stated in a joint press release.
A step in the right direction
On sunny days, the new system produces more energy than is needed to operate lights, lifts and escalators. The excess power can be transferred to neighboring stations, further increasing the efficiency of this system. The goal is to cover a third of the U6 station's annual electricity needs from its own generation. An ambitious but long-term sustainable project.
This new terrace of sustainable energy production is part of the photovoltaic offensive launched by Wiener Linien and Wien Energie in 2020. 27 solar power plants have now been installed on public transport areas throughout Vienna, which together generate up to 5.7 million kilowatt hours of electricity per year - enough to supply around 2,853 Viennese households with green electricity.
Photovoltaics as the key to sustainability
The introduction of this modern technology in urban locations is not just a fad. It offers a clean, renewable alternative to fossil fuels and helps reduce CO2 emissions and strengthen cities' energy independence. Innovative solar designs like the one at the U6 station also improve air quality and reduce the urban heat island effect, which often leads to problems with high-rise development, explains Ökosuchmaschine.
For Wiener Linien, the completion of this first facade PV system is a significant step in the implementation of its environmental policy goals. It shows how technical innovations and awareness of sustainability can go hand in hand to meet the demands of climate change. A good knack for future-oriented projects is more in demand than ever in times like these.
With its pioneering role, the project in Floridsdorf could trigger a wave of imitation and inspire other urban developments. Vienna is not only used as a development location for efficient energy, but is also recognized as a model for other cities in the fight against climate change.
The future is already visible on the facades of the Vienna subway, and it remains exciting to see how innovative approaches like this can change our cities and encourage a more sustainable way of life.
For further information about the project, see the reports from MeinBezirk and Wien.gv.at.