en.Wedoany.com Reported - Acciona Energía, the renewable energy subsidiary of Spanish group Acciona, has announced plans to build a 196 MW/980 MWh battery energy storage system (BESS) in Chile. The system will be installed at the 246 MWp El Romero solar photovoltaic plant located in the Atacama Desert.

The system can supply power continuously for five hours and is expected to begin operations by the end of 2027. Acciona Energía stated that this project will double its planned energy storage capacity in Chile.

This new facility is in addition to the 200 MW/1 GWh BESS project announced in late 2025 for the Malgarida Solar Complex (238 MWp, also located in the Atacama Desert and currently under construction). The Malgarida project is scheduled to start production in early 2027.

The company stated that these two systems will optimize renewable energy management, shift solar power generation to other time periods, improve grid stability, and enhance the supply security of the local power system.

The El Romero Solar plant was connected to the grid in 2016, with a peak power of 246 MWp and a rated power of 196 MW, located in the city of Vallenar in the Atacama Region.

Acciona Energía stated that with these two new energy storage projects, it will accelerate its installed capacity growth in Chile. The company currently has 922 MW of installed capacity in Chile, distributed across five solar photovoltaic plants (El Romero Solar 246 MWp, Usya 64 MWp, Almeyda 62 MWp, Malgarida I and II 238 MWp) and three wind farms (Punta Palmeras 45 MW, San Gabriel 183 MW, Tolpán Sur 84 MW).

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