en.Wedoany.com Reported - Antuko's Águila Andina Energy Storage System (Sistema de Almacenamiento Águila Andina) project has obtained environmental approval. This battery energy storage project, located in Vallenar, Atacama Region, Chile, is a stand-alone system with a planned investment of $224 million, designed to operate connected to the National Electric System (SEN).

According to project documents, the facility has a rated power of 200 megawatts and a maximum energy storage capacity of 800 megawatt-hours (lasting 4 hours). Infrastructure includes a 33/220 kV step-up substation, a 220 kV transmission line, access roads for construction and operation, as well as temporary and permanent facilities. The Águila Andina energy storage system consists of 161 battery containers, 23 transformer centers, and 161 power conversion systems (PCS). The project description notes that the inverters are bidirectional, enabling charging and discharging operations between the storage system and the grid.

The project plans to draw electricity from the Agua Amarga Substation (Subestación Eléctrica Agua Amarga), temporarily store it during low-demand periods, and reinject it into the National Electric System when energy demand is higher. With a capacity of 800 megawatt-hours, this project is one of a series of large-scale energy storage initiatives in Chile aimed at enhancing the reliability and resilience of the power system.

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