The AES Gener-Alfalfal Virtual Dam Project – Battery Energy Storage System is a 10,000kW energy storage project located in San Jose de Maipo, Santiago Metropolitan, Chile.

The project was announced in 2018 and will be commissioned in 2021.

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The AES Gener-Alfalfal Virtual Dam Project – Battery Energy Storage System is owned by AES Gener (100%), a subsidiary of The AES.

The key applications of the project are renewable energy integaration and electric energy time shift.

Contractors involved

AES Gener is the owner of AES Gener-Alfalfal Virtual Dam Project – Battery Energy Storage System.

Additional information

The storage system will be able to supply 10 MW over 5 hours and will provide the run of river hydro plant with the ability to store energy and later inject it into the grid during times of high demand.


All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.