The construction of the BESS is set to commence in June 2025.
The project will utilize e-STORAGE’s SolBank 3.0, featuring lithium-iron-phosphate batteries, an active balancing management system, and liquid cooling technology. This solution prioritizes efficiency and safety, supporting Colbún’s sustainability goals while maintaining reliable long-term performance with a minimal environmental impact.
e-STORAGE will provide a full range of services, including project management, system commissioning, and ongoing maintenance. Construction is scheduled to begin in June 2025, with up to 150 jobs expected to be created during peak activity. The system is planned to start commercial operations in December 2026.
Colbún CEO José Ignacio Escobar said: “This agreement with e-STORAGE positions us as one of the leading companies in Chile’s energy storage market, ensuring a continuous and secure supply of renewable energy for our industrial clients. This project, together with the other battery systems we are developing in the north of the country, will complement the storage capacity we already have through our reservoirs in the south. It is aligned with our vision of driving a responsible energy transition, where renewable energy must be not only sustainable but also secure, continuous and competitive.”
The BESS will integrate with the 232MW Diego de Almagro Sur Solar Park, operational since 2022, and will have the capacity to power approximately 55,480 households. Beyond energy storage, the system will provide advanced grid services, including grid forming, black start, and inertia support, facilitating greater integration of renewable energy into Chile’s national grid.
e-STORAGE president Colin Parkin said: “The Diego de Almagro Sur BESS Project represents a significant milestone for e-STORAGE’s expansion in Latin America and reinforces our role as a key enabler of Chile’s clean energy transformation. This project showcases the critical role of BESS in enabling greater grid reliability, optimising renewable energy usage, and supporting industrial demand with a secure and continuous supply. With our SolBank 3.0 technology, we are not only delivering cutting-edge performance and safety but also reinforcing our long-term commitment to Latin America’s clean energy future.”
The project strengthens Chile’s renewable energy infrastructure, ensuring a stable and sustainable energy supply for industrial and residential needs.
