Wärtsilä has set a new benchmark in energy storage safety with its Quantum3 system, following the completion of three demanding fire safety tests.
The programme covered UL 9540A unit-level trials, Large Scale Fire Testing, and Wärtsilä’s proprietary Active Ignition Mitigation System (AIMS), with each of the fire safety tests designed to replicate worst‑case scenarios and provide reassurance for regulators, customers and first responders.
Independent verification was provided by CSA Group, which witnessed all three fire and explosion tests. UL 9540A confirmed that if a cell entered thermal runaway, the event would not spread to adjacent modules or enclosures. No external flaming or explosion hazards were observed during the fire safety tests.
Large Scale Fire Testing, conducted under CSA/ANSI C800:25, saw a fire deliberately ignited inside a Quantum3 unit and allowed to burn for more than 22 hours. The blaze was contained within the initiating unit without suppression, demonstrating robust resilience.
AIMS testing validated Wärtsilä’s approach to igniting flammable gases at the earliest stage of a thermal event, preventing uncontrolled deflagrations and maintaining enclosure integrity.
“These results reflect years of engineering innovation and safety-first design,” said Mishaal SyedNaveed, product manager – fire protection at Wärtsilä Energy Storage. “By completing all three tests, Quantum3 has proven its best-in-class safety performance, giving our customers and the general public confidence that Wärtsilä systems are ready for the most demanding applications.”
Quantum3 is the most advanced addition to Wärtsilä’s Quantum portfolio, combining safety, cyber security, energy density and sustainability.
