Trina Storage recently completed a large-scale fire test of its Elementa 2 Pro energy storage system, evaluating the system's enclosure integrity, fire isolation, and reliability of critical systems under extreme fire conditions.

 

The test was conducted in accordance with the latest editions of CSA/ANSI C800-2025, NFPA 855-2026, and UL 9540A (November 2025), and went beyond standard criteria by reducing the spacing between containers to just 10 centimeters, creating a more severe thermal challenge to assess system-level safety margins.

 

Adjacent container cell temperatures remained well below safety thresholds

 

During the test, the initiation container experienced sustained flames exceeding 1300°C, simulating an extreme fire scenario. Cells in adjacent containers remained far below critical safety limits:

• Cell temperature in back-to-back container: below 43.9°C
• Cell temperature in side-by-side container: below 23.9°C
• Cell temperature in face-to-face container: below 28.6°C

These temperatures are well under the cell venting points, surpassing UL 9540A acceptance criteria and outperforming typical industry benchmarks. No thermal propagation occurred, demonstrating the effectiveness of the system's multi-layered safety design, including enclosure structure, fire-resistant materials, and thermal protection strategies.

 

Throughout the fire exposure, the fire alarm in the initiation container continued operating until power was lost, confirming the robustness of the communication system under extreme conditions.

 

Post-test inspections confirm structural integrity and operational reliability

 

After the fire test, inspections showed that electrical cabinets in the initiation container were intact, with internal separation maintained by multi-layer isolation. Adjacent containers remained structurally sound and fully functional. Fire protection systems in adjacent containers maintained 100% availability, module-level thermal management systems remained operational, and cell charge/discharge performance was unaffected.

 

The results demonstrate that Elementa 2 Pro maintains strong system-level reliability and thermal isolation under severe fire conditions. By exceeding standard acceptance criteria, the test highlights Trina Storage's engineering capability and leadership in safe energy storage system design.