Aluminium’s infinite recyclability makes it the king of the circular economy. Recycling not only preserves the metal's properties but also offers a dramatic 95% reduction in energy consumption compared to virgin aluminium production. This solidifies aluminium as a key material for a low-carbon future.
By integrating efficient recycling practices, North America can unlock a multitude of benefits. Recycling aluminium minimizes the need for virgin materials, significantly reducing the environmental footprint associated with mining and processing. This translates to cleaner air, water, and less land degradation. Furthermore, utilizing recycled aluminium often proves more cost-effective than virgin resources, offering a financial advantage to manufacturers. Finally, a closed-loop system for aluminium creates a reliable source of materials, contributing to increased production capacity and a more secure supply chain.
North America is uniquely positioned to capitalize on this opportunity. Boasting the world's highest Recycling Input Rate, with 57% of its aluminium production originating from scrap, the region possesses a strong foundation for a robust circular aluminium economy. However, to fully unlock this potential, significant investments are needed. Expanding capacity for re-smelting and refining recycled aluminium is crucial to meet future demand.
The automotive sector, a champion of circularity within its own right, presents a significant growth opportunity. As the demand for lightweight and sustainable materials for electric vehicles intensifies, readily available, high-capacity casting complexes in North America will be critical to meet this growing need.
Realising a sustainable and efficient aluminium industry in North America requires a collective effort from every corner of the sector.
Industry leaders have the power and influence to be a driving force for change. Continued investment into cutting-edge technology that will enhance efficiency and minimize environmental impact can pave the way for the entire industry. Pioneering these initiatives will not only benefit their own operations but also serve as a model for others to follow, accelerating the industry’s collective transformation towards a sustainable future.
Of course, none of this is possible without the help of technology providers, which are the essential catalysts for efficiency throughout the aluminium production process. This includes advancements in low-carbon aluminium melting processes and technologies, like the electromagnetic stirrers (AL-EMS) provided by ABB. ABB’s technology has proven to increase productivity by up to 25%, lower energy consumption by 10%, and reduce dross generation by 15% in more than 400 aluminium furnaces worldwide. Unsurprisingly, demand for such solutions is on the rise. In February 2024, GNA alutech, aluminium furnace provider, sought to optimise efficiency, increase productivity, lower energy consumption, and help reduce operating costs, and ordered four of ABB’s electromagnetic stirrers to do just that.
Advancements in low-carbon aluminium melting processes and technologies is made possible through collaboration. ABB metallurgists predict and ensure electromagnetic stirring force and related improvements for each furnace project.
In addition to the advancements mentioned previously, technology providers also play a role in developing more efficient electrical solutions within aluminium production facilities. One promising area of development is the adoption of DC (direct current) to AC (alternating current) conversion technology. While traditional aluminium smelting relies on AC power, the conversion process itself can be energy intensive. By implementing DC power supplies such as ABB’s high power rectifiers at specific stages of production, facilities can reduce energy consumption and minimise their overall carbon footprint.
The final piece of the puzzle is the work that governments and policymakers are doing behind the scenes, which can significantly accelerate the rate of progress. Favourable policy creates a fertile environment to capitalize on the rich industry appetite for reshoring growth and sustainable technology adoption.
North America is uniquely positioned to become a global leader in clean aluminium production. Abundant natural resources, a strong foundation in recycling, and a spirit of innovation provide a solid platform for success. By embracing reshoring, recycling, and a commitment to sustainability, the aluminium industry can not only foster environmental stewardship but also unlock significant benefits. Increased production capacity will ensure a secure and reliable supply chain. Through collaboration and innovation, all stakeholders within the industry can work together to ensure a sustainable and secure future for aluminium in North America. This will not only benefit the industry itself but also contribute to a greener and more sustainable future for the entire region.
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