APsystems Achieves Key Safety Certification for Commercial Energy Storage System

## APsystems Clears UL 9540A Safety Benchmark for APstorage 261L Shanghai-based energy technology company APsystems has announced the successful completion of UL 9540A fire safety testing for its APstorage 261L liquid-cooled battery energy storage system (BESS), according to a PR Newswire release dated September 3, 2026. The testing was conducted under the supervision of TÜV Rheinland, one of the world's leading independent technical service providers, lending additional credibility to the certification outcome. UL 9540A is widely regarded as the industry benchmark for evaluating the fire hazard of battery energy storage systems, assessing the potential for thermal runaway propagation — a critical safety concern for large-scale deployments. ### Relevance to Maritime and Port Operations While APsystems primarily targets commercial and industrial (C&I) land-based markets, the certification carries implications for the broader maritime energy sector. Port authorities, terminal operators, and shipowners increasingly rely on shore-side BESS installations to support cold ironing infrastructure, peak shaving, and grid stabilisation at berth. Safety-certified storage systems are a prerequisite for deployment in many port environments, where fire risk management is subject to stringent regulatory oversight. The liquid-cooled design of the APstorage 261L is particularly relevant for high-density energy environments, where thermal management is essential to maintaining operational safety and system longevity. ### Industry Context The push for certified, safety-validated energy storage is accelerating across the maritime supply chain as ports and shipping companies work to meet decarbonisation targets set by the International Maritime Organization (IMO) and regional regulators. Reliable, certified BESS technology underpins the electrification of port operations and supports the transition away from diesel auxiliary power. APsystems' achievement of the UL 9540A standard positions the APstorage 261L as a viable candidate for operators seeking compliant energy storage solutions in regulated industrial and port-adjacent environments. *Source: PR Newswire*