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Audi Hungaria starts operation of Europe’s biggest solar roof installation

Audi Hungaria, in cooperation with E.ON Hungaria, officially started operation of Europe’s biggest photovoltaic roof installation. Since the start of the year, the site in Győr has used only green power. In 2012 Audi’s Hungarian plant opened a geothermal facility to supply most of its heat requirements. The remainder is compensated by bio-gas certificates.


Audi Hungaria: Photovoltaic system on the roofs of the two logistics halls

Audi Hungaria is thus the second of five Audi sites (after Audi Brussels) to achieve a neutral carbon balance, according to the company.

We have a clear aim: that all Audi sites will have carbon-neutral operation by 2025.

—Peter Kössler, board member for production at Audi and chairman of the supervisory commission of AUDI HUNGARIA Zrt

All of the measures for reducing the ecological footprint at Audi sites, in production and in logistics are gathered together under Mission:Zero. The focus lies on the challenges that are key to Audi: decarbonization; water utilization; resource efficiency; and biodiversity. Since the start of this year, all Audi plants have used only green power.

Audi is constantly reducing the energy requirement at its sites. In 2019 alone, Audi Hungaria saved more than 18,000 megawatt-hours of energy and avoided CO2 emissions amounting to almost 5,750 tonnes by means of numerous efficiency measures. In addition, the site at Győr in Hungary is engaged in decarbonization by means of three mechanisms.

The first is the switch to green power, which has taken place thanks to the commissioning of Europe’s biggest photovoltaic roof installation and the supply of electricity from renewable sources. The facility, built in cooperation with E.ON Hungaria, has been installed on the roofs of the plant’s two logistics centers.


This solar energy park, covering an area of approximately 160,000 square meters, consists of 36,400 solar cells and provides a maximum performance of twelve megawatts.

The second measure is the supply of geothermal energy. Since 2012 Audi Hungaria has used this source for most of its requirement for heat at the site. The geothermal plant in Győr meets approximately 70% of the demand. The remaining heat is generated through natural gas, with carbon neutrality assured thanks to bio-gas certificates. Audi Hungaria is the biggest user of industrial geothermal energy in Hungary. The plant has an annual output of at least 82,000 megawatt-hours of thermal energy annually. Since 2015 the company has made use of 250 gigawatt-hours of geothermal energy, reducing emissions of CO2 by 50,000 tonnes.

Carbon emissions that are currently unavoidable—for example those from the engine testing facilities—are compensated by Audi Hungaria through internationally recognized and certified carbon credits. This is the third mechanism, which accounts for about five percent of the carbon emissions.

Audi is continuously working to reduce the ecological footprint of its sites. The company is also engaged beyond the gates of its plants. Since 2017 Audi’s logistical rail transportation carried out with Deutsche Bahn has been largely carbon-neutral. Thanks to the changeover to the “DBeco plus” product of DB Cargo, the company has saved more than 13,000 tonnes of CO2 annually.

Since 2010 the so-called “green train” has been on the rails between Ingolstadt and the North Sea loading port of Emden. Since 2012 “green trains” have also been in operation on the route from the Audi plant at Neckarsulm to Emden. Since 2019 Audi has also been compensating the routes between the factories in Ingolstadt, Győr and Brussels, the production site of the Audi e-tron.


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