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Alcoa bets on power transmission to decarbonize bauxite mine

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With the aim of reducing carbon emissions in the operations of the Juruti mine, in the state of Pará, currently powered by fossil fuel, Alcoa will invest around R$130 million in a contract with Equatorial Energia to build 51 kilometers of transmission lines that will integrate the region into the National Interconnected System (SIN) and serve the mine and the port.The new infrastructure will also have a substation and will replace the power supply, which is carried out with diesel generators, with electricity from a renewable source, which is expected to generate approximately 35% reduction in CO2 emissions during the mining stage.The project is expected to be complete in three years, with delivery expected in 2026. The generation capacity will be 10 average megawatts (aMW), enough to supply a city with about 40,000 inhabitants.With a current operating capacity of 7,5 million tonnes per year and a potential bauxite reserve of 700 million metric tonnes, the Juruti mine is in the Amazon rainforest. The mine has been operating since 2009 using diesel generators to obtain the energy consumed in the port and washing plant.The use of fossil fuels in isolated systems in the region has always been criticized, since it has great potential for generating clean and renewable energy. Alcoa’s CEO Otávio Carvalheira says that this process of migration from fossil energy to renewable electricity aims to meet the company's global goals of reducing scope 1 and 2 emissions by 30%, aiming to achieve zero net emissions by 2050.Being connected to the grid, the idea is to have access to energy generated in the portfolio, since Alcoa has participations on the energy self-production plants of Machadinho, Estreito, Baesa and Serra do Facão, which together total 3,087.6 MW of installed capacity, enough to supply 50% of its production."The region was not served by transmission lines that would enable us to make the connection. This reality is changing, and Alcoa is currently investing around R$130 million to connect us to this grid," he said.Besides using the energy generated in the portfolio, Alcoa will have the possibility to attend its own energy needs through long-term contracts in the free energy market, which will make the company self-sufficient in energy for aluminum...

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