Many climate protection hopes are built on photovoltaics—turning the power of the sun into electricity. This requires both the right know-how for generating solar power as well as sustainable components and tools. We provide both.
Around the world, systems are being installed on building facades, roofs, and in open spaces which convert the power of the sun into green electricity. As ever, when it comes to sustainability, we offer smart solutions for effectively installing solar power plants and producing the essential solar modules.
The technological implementation of photovoltaics is challenging. Apart from the modules and necessary electrical components, photovoltaic systems need to be installed securely and effectively. Installation requires robust assembly systems, which ensure that the panels are firmly fixed and ideally positioned, and able to withstand the elements, such as wind. voestalpine companies help to achieve this with their expertise, and by supplying steel components tailored to the specific applications. These range from special sections and tubes through to customized system solutions.
Whether PV systems are installed on unused spaces, between crops, above orchards, or on carports, we implement ideas which combine sustainable power generation with an effective use of space. Six voestalpine companies on three continents manufacture structures and components for generating solar power:
Every kilowatt hour produced by a photovoltaic system which replaces power generated from fossil fuels takes us another step further to meeting the climate goals. This explains the current boom in the PV industry. The International Energy Agency (IEA) projects a 20-fold increase in current installed PV capacity to over 14 million MWp by 2050. Solar power would then account for almost a quarter of global electricity generation.
The benefits are global. Generating electricity with photovoltaics creates no direct greenhouse gases. Instead, it avoids millions of tons of emissions. The IEA calculates that each year, every installed PV gigawatt helps to avoid 2.1 million tons of CO2 emissions resulting from coal- and gas-based electricity generation.
Faced in exactly the right direction and at the right angle—solar panels need to be precisely positioned so that the sun’s rays hit the solar cells at a right angle. Shadows need to be avoided, of course; trees, buildings, and satellite dishes, or even adjacent panels, can significantly reduce output. Intelligent installations and appropriate assembly systems are used to overcome these challenges.
In the northern hemisphere, solar panels are usually positioned to face south to exploit the power of the sun to a maximum. The exceptions to this rule are so-called east-west systems, which, although reducing peak output, distributes power generation more evenly over the day, making them ideal for PV systems used to ensure self-sufficiency.
Tracking systems are often used in open spaces to align individual panels or entire lines of modules to follow the sun along one or two axes, further increasing their output compared to static systems.
Much is happening in terms of green electricity generation in Brazil. In 2022, solar power accounted for 2.6% of overall power generation; this share is forecast to rise to more than 15% by 2030. voestalpine Meincol S. A. provides steel sections and tubes, which will help to turn this prediction into reality.
Since 2017, this Brazilian voestalpine company, based in Caxias do Sul, has increased its supplies of PV assembly systems 40-fold. Its customers include the constructors of “Futura I,” one of Brazil’s largest PV projects. In the first phase of construction, nearly 20,000 trackers cover an area of around 16 km², and once completed the PV system should harvest a maximum of 852 MW of electricity.
Using coordinated components is the most effective way of installing a PV system. Modern assembly systems are quick and easy to install, and enjoy a long service life. The components are manufactured from corrosion-resistant and extremely durable material, allowing them to withstand the stresses of wind, snow, and temperature changes.
Assembly systems in galvanized steel, such as Fastslide® and Flexroof® from voestalpine Sadef nv, are successful examples of PV systems. The Belgian voestalpine company supplies its solar power systems everywhere from Great Britain to Jordan. Whether freestanding installations or mounted on rooftops, they ensure the panels are securely directed towards the sun.
iFIX, manufactured by voestalpine Automotive Components Schwäbisch Gmünd GmbH in Germany, is a rooftop assembly system designed for sustainably and efficiently converting flat rooftops into solar power plants.
iFIX® is also extremely quick to install. The individual elements are joined together using a simple one-click system, with no need for tools, making them twice as fast to install as comparable systems.
Solar modules convert sunlight into electrical energy. Extremely fine saws are used in their manufacture: Wires as thin as 40 µm, or 0.04 mm in diameter, work their way through the cultivated silicon ingots, which are at least 156 mm in length. The result is so-called wafers, which form the core of highly- efficient, monocrystalline solar cells. Although over the past years production has moved out of Europe, manufacturers are sourcing a quality product: wire rod for the finest diamond-tipped saws. This essential prematerial for the photovoltaics industry is produced by voestalpine Special Wire GmbH in the Styrian town of Fürstenfeld, Austria.
The wire used to saw silicon ingots into wafers is just half the thickness of a human hair.
Although these saw wires are incredibly fine, they have huge tensile strength and are unbreakable. A breakage during sawing would ruin the silicon ingot. The Fürstenfeld manufacturer’s description of the product as “ultra-high-strength fine wire” indicates its key property. “Our controlled manufacturing process, from the steel plant through to the final diameter, allows us to influence our product parameters at any time, to consistently ensure its purity and grade,” stresses Helmut G., explaining the advantages of the fully integrated production chain.
The wire rod produced by voestalpine Special Wire is thinner than a human hair but 25 times stronger, and essential for the solar industry.
For decades, voestalpine has been the environmental and efficiency benchmark for the industry. We focus on sustainability out of conviction, not because it is the trend. As part of our sustainability focus, we provide information on which sustainability criteria and standards we follow, on how we are continuously improving our carbon footprint, and about the innovative, sustainable products and solutions we develop for our customers in order to make the world a little better.
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.
