From 2027, a new electric arc furnace in Donawitz will significantly reduce the greenhouse gas emissions from steel production. Green electricity is essential for the successful start of production.
By 2027 we should be ready. As part of decarbonizing our steel production as laid out in our greentec steel strategy, one blast furnace in Donawitz will be replaced by an electric arc furnace (EAF).
greentec steel is our ambitious phased plan for green steel production. We have already made huge investments in protecting the environment and climate in the past decades. Our goal is to achieve steel production with net zero CO2-emissions by 2050. The first step to achieving this goal is to convert the traditional blast furnace process in Linz and Donawitz to a hybrid route using electric arc furnaces. We are also conducting research into other novel processes, such as the SuSteel project in Donawitz for steel production with net zero CO2-emissions using hydrogen plasma to convert iron ore in a single step.
The first step of transforming the site into a hybrid steel plant that uses both electric and blast furnace steel production routes will make a significant contribution to achieving the global climate goals. Together with the planned EAF in Linz, the EAF in Donawitz will reduce our current CO2 emissions by around 30% by 2029 compared with 2019 levels. This corresponds to savings of up to 4 million tons of CO2 per year—nearly 5% of Austria’s annual CO2 emissions. A further blast furnace will be replaced with an EAF from 2030 to 2023. Unlike the current two-stage blast furnace route, in which the liquid pig iron produced in the blast furnace is subsequently processed into crude steel in the steel plant, an EAF uses green electricity to produce crude steel in a single step.
Producing steel in an EAF using electricity requires temperatures of around 1,500°C and more than 100 MW of power—roughly the output of an average Danube power plant. Currently, part of the required electricity is generated from the smelter gases originating in the blast furnace and steel plant, as well as being sourced from hydropower plants. As the blast furnaces are replaced, green electricity will take the place of smelter gases. Therefore, much needs to be done to secure sufficient power supplies generated by renewables prior to the implementation and completion of the EAF project in 2027.
We are taking active measures to further expand our renewable energy generation in order to meet future demand for green electricity. These include installing more photovoltaic systems. We are also developing wind turbines, hydropower plants, and further PV installations together with regional partners, and have already concluded supply contracts with local wind and hydropower plants. A key prerequisite for transforming our steel production is the availability of green electricity at competitive prices. The planned projects to expand renewable power generation in the region will play a major role here.
Within the framework of our focus greentec steel, we provide an overview of our concrete steps on the way towards long-term green steel production and the innovative processes we are using on this way. We provide information about the challenges we face and the breakthrough technologies we are already researching today in order to achieve our goal of steel production with net zero CO2 emissions by 2050.
Die voestalpine ist ein weltweit führender Stahl- und Technologiekonzern mit kombinierter Werkstoff- und Verarbeitungskompetenz. Die global tätige Unternehmensgruppe verfügt über rund 500 Konzerngesellschaften und -standorte in mehr als 50 Ländern auf allen fünf Kontinenten. Sie notiert seit 1995 an der Wiener Börse. Mit ihren Premium-Produkt- und Systemlösungen zählt sie zu den führenden Partnern der Automobil- und Hausgeräteindustrie sowie der Luftfahrt- und Öl- & Gasindustrie und ist darüber hinaus Weltmarktführer bei Bahninfrastruktursystemen, bei Werkzeugstahl und Spezialprofilen. Die voestalpine bekennt sich zu den globalen Klimazielen und verfolgt mit greentec steel einen klaren Plan zur Dekarbonisierung der Stahlproduktion.
