Trina Storage has completed a major fire safety validation of its Elementa 2 Pro energy storage system, with the large‑scale test independently witnessed by North American fire engineering consultancy The Hiller Companies.
The fire test, carried out in November, was designed to demonstrate system‑level safety and reinforce the company’s commitment to rigorous third‑party assessment.
Hiller, recognised in the United States for its expertise in fire protection, engineering and energy safety, brought extensive knowledge of NFPA, UL and other essential safety standards to the process. A subject matter expert from Hiller was present throughout the on‑site experiment, overseeing every stage, ensuring strict execution, and capturing detailed data to guarantee full transparency and traceability.
The test followed the most up‑to‑date international standards, NFPA 855:2026 and UL 9540A:2025‑11, and was conducted under conditions that went beyond standard requirements. The Initiation container remained structurally sound with no collapse, and there was no thermal propagation to neighbouring units. Recorded maximum cell temperatures reached 43.9°C in back‑to‑back placement and 23.9°C in side‑by‑side configuration, remaining comfortably below venting thresholds.
Paul Hayes, vice president of energy infrastructure and senior fire protection engineer at Hiller, stated that the system’s performance reflects its professionalism in energy storage safety engineering. Hiller will now complete a full, impartial analysis of the collected data and prepare an independent evaluation report alongside an NRTL report.
