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Viridi’s RPS150 Battery Energy Storage System Earns UL 9540 Intertek (cETLus) Listing
BUFFALO, N.Y., June 24, 2025 /PRNewswire/ — Viridi, a leader in fail-safe battery energy storage systems (BESS), has announced that its RPS150 system has successfully met the UL 9540 standard for Energy Storage Systems and Equipment, one of the most recognized safety standards in the industry. The system is now ETL listed by the National Recognized Testing Laboratory (NRTL) Intertek Testing Services, allowing it to carry the cETLus mark for both the U.S. and Canadian markets.
The RPS150 Battery Energy Storage System not only demonstrates fail-safe performance but also excels in fire safety, making it a reliable choice for energy storage. This achievement comes shortly after Viridi’s live demonstration at “The No Heat Zone” event, where conventional batteries underwent thermal runaway. In contrast, Viridi’s design successfully contained the failure to a single cell without any flame spread.
“Following our successful burn event, this only validates our technology even more,” said Jon M. Williams, CEO of Viridi. “At our No Heat Zone event, we proved our system’s ability to stop the propagation of energy between cells, even during a thermal event. This ETL listing to UL 9540 reinforces that our design meets the highest industry safety standards—not just in theory, but in real-world conditions.”
The issue of lithium-ion battery fires has become increasingly critical. In 2024, New York City reported 277 fires linked to lithium-ion batteries, an increase from 268 in 2023. Similarly, Phoenix, Arizona, recorded 127 fires from June 2023 to September 2024, more than doubling the annual average. These statistics highlight the urgent need for safer energy storage solutions.
Viridi’s ETL listing to UL 9540, combined with its proven anti-propagation technology, positions the RPS150 as a leading option for safe deployment in occupied areas. “We’re setting a new benchmark for what safe energy storage looks like,” Williams added. “From fire departments to facility managers, stakeholders are demanding solutions that are not only high-performing but inherently safe. Viridi is answering that call.”
For more information, visit: [Viridiparente.com](http://www.viridiparente.com)
### About Viridi
Viridi is transforming energy storage with its proprietary fail-safe lithium-ion battery technology. The company’s battery energy storage systems (BESS) incorporate innovative anti-propagation technology that significantly reduces the risk of lithium-ion battery fires. Viridi’s commercial-scale BESS is among the first to be installed in an existing, occupied building, setting a new standard for safety and reliability. Engineered for seamless integration into various environments, the BESS combines advanced AI and connectivity for unparalleled remote monitoring and energy optimization. Viridi is dedicated to enabling clean, scalable energy solutions across industries, paving the way for a safer and more sustainable future.
Media Contact:
Alexandra Pony
[Email](mailto:apony@viridiparente.com)
250.858.0656
SOURCE Viridi Parente
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Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/viridis-rps150-battery-energy-storage-system-achieves-ul-9540-certification-for-enhanced-safety-and-performance/
