Alcoa has recently completed the installation of a new furnace that uses renewable energy to melt and recycle scrap aluminum, saving energy and reducing carbon emissions while producing the low-carbon products that customers seek.
Located in Norway, Alcoa’s Mosjøen melter is fully powered by renewable energy and produces rolling ingots and foundry alloys, including metal for Alcoa’s SustanaTM line, the most comprehensive offering of low-carbon products in the aluminum industry, and metal certified from the Aluminum Stewardship Initiative. Specifically, Mosjøen produces EcoLumTM, a low-carbon primary aluminum with a carbon footprint 3.5 times better than the industry average, and EcoDuraTM aluminum, which includes at least 50% recycled content.
“The recycling furnace in Norway is a collaboration with MMG Aluminium AG, a metals company based in Germany that supplies the smelter with clean aluminum chips and shavings that have been compressed into briquettes.”
Most plants across the world remelt scrap using furnaces where the burners are powered by fossil fuels. The furnace at Mosjøen differs as it runs on electricity sourced from wind and hydropower, using alternating current that passes through a resisting coil to create heat. That heat melts the scrap, and any impurities are removed before pure aluminum is poured off via the furnace’s tilting mechanism.
The closed-loop induction furnace at Mosjøen is just one of many ways Alcoa is reinventing the aluminum industry for a sustainable future, including our technology roadmap that outlines a path toward a net zero future for the industry.
As the demand for low-carbon aluminum increases, technologies like the induction furnace will help deliver the raw materials required for a more sustainable world.