Technical FAQs 4

Are battery energy storage systems a viable alternative for Chilean power producers?

With transmission lines at overcapacity and permitting delays slowing the development of new grid infrastructure, battery energy storage systems (BESS) have surged as a profitable alternative for Chilean power producers.

What is the largest battery-based energy storage system in Latin America?

In March 2024, BESS Coya, the largest battery-based energy storage system in Latin America, started operations. The facility is located in the Antofagasta region and has a storage capacity of 638 MWh, with 139 MW of installed capacity. The project utilizes lithium-ion batteries and stores the energy generated by the 180-MW Coya photovoltaic plant.

How much does a battery cost in Chile?

In fact, batteries charged at nearly $0/MWh during the day in the sunny, northern desert regions of Chile, sell energy at night for over $100/MWh. Although projects such as Engie’s BESS Coya are already enjoying these large spreads, this capacity payment will partially de-risk Chile’s dependence on volatile, but still profitable, merchant revenues.

How much battery storage does Chile have?

Chile has an operational installed capacity of approximately 1GW in batteries, and another 3GW is under construction. Battery storage has been largely financed by bank lending in recent years, but we believe larger projects could increase the scope for bond financing.

Photovoltaic Storage & BESS Technical Resources


Expert insights on photovoltaic energy storage systems, BESS solutions, mobile power containers, EMS management systems, commercial storage, industrial storage, containerized storage, and outdoor power generation for South African and African markets

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