The Environmental Assessment Committee of the Metropolitan Region of Chile recently approved the Environmental Impact Declaration for the BESS Paicaví energy storage system, submitted by Korkia Solar Ray, a company associated with the Finnish Korkia Group. This energy storage project is planned with a power capacity of 150 MW and an energy capacity of 750 MWh. It will be located near the Mariscal substation in the La Pintana commune of Santiago Province.

According to project documents, the BESS Paicaví system will utilize surplus energy from the Mariscal substation, store it in batteries, and reinject it into Chile's national grid as needed to optimize energy dispatch. The system plans to install 150 containers, each covering 15 square meters, with a unit capacity of up to 5,000 kWh, and will be equipped with inverters and auxiliary equipment for protection and control.

The project covers an area of 38,879 square meters with a total investment of approximately $90 million. Execution is expected to begin on June 1, 2027, with a designed service life of 30 years. The construction phase will employ 70 workers, the operational phase will provide 3 permanent positions, and the decommissioning phase will require up to 40 positions.

The BESS Paicaví project also includes a 33/110 kV step-up substation with a transformer capacity of 150 MVA (ONAN)/160 MVA (ONAF), equipped with an operations building, battery rooms, and measurement and protection systems. To connect to the grid, a 0.5-kilometer-long high-voltage line will be constructed using three galvanized lattice steel towers.

The implementation of this BESS Paicaví energy storage system will help enhance the stability and energy efficiency of Chile's power grid, supporting the integration of renewable energy. The project is expected to commence in 2027, creating local employment opportunities and promoting clean energy development.