The photovoltaic system on the roof of Hall D of the Wiener Stadthalle, Vienna's largest roof for culture and entertainment, generates around 1.1 million kilowatt hours of electricity per year, and with the expansion of further roof surfaces of the Wiener Stadthalle, we aim to generate 100 percent of the electricity consumed at the site green on site by 2028.


At almost five and a half thousand square meters, the area on the roof of Hall D covered by the first photovoltaic system is as large as 21 tennis courts and is 25 meters high. A total of 2,956 photovoltaic modules were screwed onto the roof of Austria's most important event location. Around 16,000 roof seam clamps were used to mount the individual panels and 20 kilometers of DC cable were laid. The total output of the system is 1,123 kWp, generating around 1.1 million kilowatt hours of electricity per year. This is as much as 580 1-person households in Vienna consume annually. According to the calculation tool of the Austrian Energy Agency, 486 tons of carbon dioxide can be saved annually. Over a useful life of 25 years, that's a total of 12,161 metric tons.