AES Andes is a leader in energy storage, with 62 MW in operation. It was a pioneer in introducing the first 12MW lithium battery bank in the Andes substation in 2009. Subsequently, it built 2 banks of 20 MW each adjacent to the Angamos and Cochrane power plants respectively, and in 2021 it added Virtual Reservoir at the Alfalfal I Power Plant, with 10 MW. Currently, it has projects under construction for more than 250 MW in this type of technology.
Batteries are a fundamental complement to the generation of renewable energy, since they allow this energy to be stored and then supplied to the system during the hours of greatest demand.