Grid-scale

Colbún chooses e-Storage for 912 MWh battery project in Chile

Canadian Solar’s e-Storage division secured the supply deal from Chilean utility Colbún for the Atacama-based project. Construction is slated to begin in June with the site to be operational in December 2026.

By

Luis Ini

Apr 24, 2025

The e-Storage division of PV manufacturer Canadian Solar has landed a 228 MW/912 MWh battery energy storage system (BESS) supply deal from Chilean energy company Colbún for its Diego de Almagro Sur project, in the Atacama region.

Announcing the contract, e-Storage said it would supply a SolBank 3.0 lithium iron phosphate (LFP) BESS including active battery management and a liquid cooling system to maximize performance and safety.

Site construction is set to begin in June, creating 150 peak construction jobs, with commercial operation planned for December 2026.

The BESS will be installed next to the 232 MW Diego de Almagro Sur solar farm Colbún has operated since 2022 and which already has an 8 MW/32 MWh energy storage system.

The new BESS will provide sufficient electricity for 55,480 homes, according to e-Storage, which added the site would also provide grid-forming, black-start, and inertia support services for the Chilean grid.

As part of the supply contract, e-Storage will provide local project management, commissioning services, and long-term maintenance of the BESS.

From pv magazine LatAm.

Written by

Luis Ini
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