Latin America has had a record year in terms of deployed electrical storage capacity for grid use.
In September 2025, the largest BESS project in the region to date began operations, and others with even greater capacity are currently under development.
However, what are the biggest projects today?
Let's take a closer look:
10. BESS - PFV Salvador (50 MW, 250 MWh) Company: Innergex With an investment of USD $75 million and a discharge capacity of 5 hours, this project located in the Atacama desert stores energy paired with a solar power plant.
9. BESS PFV Capricornio (48 MW, 264.2 MWh) Company: ENGIE Chile Located in Antofagasta, this system supports the dispatch of renewable energy and improves the operational flexibility of northern Chile.
8. BESS PFV Andes IIA (80 MW, 268.8 MWh) Company: AES Andes Combines solar generation and storage, also located in Antofagasta, Chile.
7. BESS PFV Tamaya Solar (68 MW, 341 MWh) Company: ENGIE Chile Near Tocopilla, and the second largest BESS plant of Engie in Chile.
6. Andes Solar IIb (112 MW, 560 MWh) Company: AES Andes. Key part of the Andes Solar complex in Antofagasta. Combines photovoltaic generation with large-scale storage.
5. BESS PFV Quillagua I (95 MW, 586 MWh) Company: ContourGlobal Located in María Elena, this project strengthens the continuity of solar supply and lays the foundations for BESS development in the northern zone.
4. La Coya (158 MW, 638 MWh) Company: ENGIE Chile Integrated into the Coya solar park, in Antofagasta, this system allows the storage of energy generated during the day for use during peak hours.
3. BESS - Andes IV (130 MW, 650 MWh) Company: AES Andes The BESS system of AES Andes, also in Antofagasta, is paired with a solar plant.
2. Quillagua II (105 MW, 651 MWh) Company: ContourGlobal Second phase of the Quillagua project, with entry into operation in September 2025. Together with Quillagua I, it reaches 1,219 MWh, so, together both projects are considered the largest BESS of its kind in LATAM.
1. BESS del Desierto SpA (200 MW, 800 MWh) Empresa: Atlas Renewable Energy El BESS stand-alone más grande de América Latina, ubicado en Antofagasta. Inaugurado en abril y completamente operativo desde septiembre, representa un paso hacia adelante en los proyectos BESS en la región de latinoamerica.
The common denominator of all these projects? The answer: Chile.
With more than 1.4 GWh currently operating, Chile is comfortably positioned as the leader in Latin America in electrical storage.