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Technology group Wärtsilä has completed rigorous large-scale fire safety testing of its GridSolv Quantum energy storage system (ESS). The scope and scale of Wärtsilä’s testing program have set a new standard for fire safety testing in the energy storage industry.
The large-scale fire testing exceeds the mandatory testing requirements of existing testing standards (such as UL 9540A) and was designed to simulate a worst-case scenario. Overseen by Wärtsilä’s fire safety partners and stakeholders – including Fire & Risk Alliance, Energy Safety Response Group, and Energy Security Agency – the testing was completed at a facility in Piqua, Ohio, and run by the Energy Safety Response Group. Fire safety is a major priority for the energy storage industry and Wärtsilä’s ESS is designed to meet and exceed stringent safety and quality standards.
The testing involved intentionally igniting a fire within a Wärtsilä’s GridSolv Quantum to reveal important information about how the system would react in a highly unlikely event of a catastrophic failure and demonstrate that, even in the worst-case scenario, a fire in a GridSolv Quantum unit would not spread to neighbouring enclosures.
Under the test conditions, a fire was ignited within a ventilated unit and was allowed to free-burn for more than eight hours. The results showed that a fire would remain contained within the initiating unit, doors would remain closed, and the fire would not result in unit-to-unit propagation.
This kind of bespoke, self-directed testing program assesses the unit as an integrated system to provide a more complete understanding of fire risk than what could be achieved through mandatory testing alone, which largely assesses individual components. The testing helps ensure that Authority Having Jurisdictions (AHJs), the fire service, and other stakeholders have a complete understanding of the potential risk.
As part of the testing, the Fire and Risk Alliance (FRA) captured plume gas data to assess the potential environmental impact of the smoke emitted by an ESS fire. FRA’s analysis concluded that the smoke from an ESS fire is no worse in terms of environmental impact than fires involving normal consumer products.
“This new testing benchmark demonstrates Wärtsilä’s commitment to keeping our partners, customers, local safety officials, and local community members safe. It is crucial that the industry treats fire safety as its priority. Volunteering to complete testing beyond the minimum requirements provides confidence to key stakeholders that risks are being actively managed,” said Darrell Furlong, Director of Energy Storage Product Management and Hardware Engineering at Wärtsilä. “We are proud to set a new fire safety standard and we remain committed to safety as our top priority.”
“Wärtsilä’s bespoke testing is the ideal way to demonstrate that a fire will not propagate between ESS enclosures or from string to string. This outcome illustrates that with minimal or no response from the fire service or other responders, a fully involved fire is unlikely to spread beyond the initiating unit,” said Noah Ryder, PhD, Managing Partner, Fire & Risk Alliance.
“As the risks posed by energy storage systems are better understood by AHJs, the desire to incorporate even more data into the safety analysis requires greater scale and evolution in testing. Test results such as those from large-scale fire tests help inform this process, which overall allows for better analysis and satisfaction of code requirements,” said Nick Warner, Principal, Energy Safety Response Group. “In the case of Wärtsilä, once the system was fully-involved [fully on fire], the risk to neighbouring units was minimal and could be managed by a well-trained fire department with proper planning and support.”
Wärtsilä’s GridSolv Quantum is a fully integrated modular and compact ESS that offers the lowest life cycle costs, fastest deployment times, highest quality control and maximum flexibility. By design, GridSolv Quantum solves many fundamental safety challenges such as thermal management, fire detection, short circuit handling and interconnection communication. It is certified to UL 9540 by Eurofins MET Labs in April 2022 and CSA in March 2023. It met UL 9540A unit-level performance requirements in February 2023. Wärtsilä’s GridSolv Quantum utilises Lithium Iron Phosphate (LFP) batteries, which are less prone to fire risk to other lithium-iron chemistries, adding an extra layer of safety.
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Image caption: Wärtsilä has fire safety as a major priority for its GridSolv Quantum ESS, complying with UL 9540A unit-level performance requirements and designed to meet stringent safety and quality standards. © Wärtsilä
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Wärtsilä Energy in brief
Wärtsilä Energy leads the transition towards a 100% renewable energy future. We help our partners to accelerate their decarbonisation journeys through our market-leading technologies and power system modelling expertise. These cover decarbonisation services, future-fuel enabled balancing power plants, hybrid solutions, energy storage and optimisation technology, including the GEMS Digital Energy Platform. Wärtsilä Energy’s lifecycle services are designed to increase efficiency, promote reliability and guarantee operational performance. Our track record comprises 76 GW of power plant capacity and 110 energy storage systems delivered to 180 countries around the world.
Wärtsilä in brief
Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy markets. We emphasise innovation in sustainable technology and services to help our customers continuously improve their environmental and economic performance. Our dedicated and passionate team of 17,500 professionals in more than 240 locations in 79 countries shape the decarbonisation transformation of our industries across the globe. In 2022, Wärtsilä’s net sales totalled EUR 5.8 billion. Wärtsilä is listed on Nasdaq Helsinki.