Canadian Solar’s e-STORAGE Sets New Benchmark in Battery Fire Safety with SolBank 3.0

Canadian Solar Inc.announced that its energy storage subsidiary, e-STORAGE, has successfully completed Large-Scale Fire Testing (LSFT) for its SolBank 3.0 system, confirming its advanced fire safety performance for utility-scale applications.

Conducted under the CSA C-800:25 §9.7 protocol, the LSFT demonstrated SolBank 3.0’s ability to contain thermal events within a single enclosure, preventing fire propagation to adjacent units. The system’s passive fire containment design kept all doors and structural elements intact throughout testing, aligning with NFPA 855 safety standards.

The results were independently verified by CSA Group and fire safety experts at Energy Safety Response Group (ESRG), underscoring SolBank 3.0’s suitability for large-scale, safety-critical deployments.

Josh Dinaburg, Fire Test Specialist at CSA Group, commented, “Key stakeholders in the energy storage industry have raised justifiable concerns about the ability of BESS to limit the spread of fire between units without relying on complex extinguishing systems or putting first responders at risk. The e-STORAGE system demonstrated that an aggressive fire consuming all available fuel in one unit does not ignite new fires and spread to adjacent units. This is critical performance data for the end-users and site managers, first responders, insurance adjusters, and the community at large where these systems may be installed.”

Colin Parkin, President of e-STORAGE, added, “Successfully completing the Large-Scale Fire Testing reinforces our high standard on system safety. At the same time, it once again positions e-STORAGE as a leader in delivering safe, scalable energy storage solutions—across products, projects, and markets—and our continued commitment to go beyond industry standards for operation safety.”