Project Description

An underground station becomes a solar power station

In the course of a pilot project, Wiener Linien is working alongside Wien Energie to test novel, plastic solar modules on the flat roof of the Ottakring underground station. Around 62,000 kWh of solar power will now be produced on an area covering approximately 360 sqm. This will mean savings of 21 tonnes of CO2 per year.

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Project details

This pilot project is taking place under an EU funding programme aiming to reduce the CO2 emissions of mobility providers in European cities. The EU is covering 80% of the project costs of EUR 120,000. The pilot project is scheduled to run until early 2022. If it is successful, other station buildings may also be used to generate power.

These innovative solar modules are manufactured from plastic rather than glass by the company Das Energy based in Wiener Neustadt. In contrast to conventional photovoltaic systems, the films are five times lighter. They are also self-adhesive, flexible and available in all conceivable colours. They can be attached nearly anywhere, but particularly on the façades of buildings.

The electricity generated is used on site at the Ottakring underground station to power escalators, lifts and station lighting. The 60.3 kWp PV system is able to meet around 15% of the station’s energy requirements.

Ulli Sima

“Public transport is one of the key factors when it comes to environmental protection in Vienna. Not only trams, buses and underground trains but also the supply of energy to Wiener Linien plays an important role here, which is why I am delighted that Wiener Linien is also acting as a pioneer in this area by testing photovoltaic films on large roof areas alongside Wien Energie.”

Ulli Sima, Vienna city councillor responsible for the environment and Wiener Stadtwerke

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