For European distributors, energy storage safety has evolved beyond simple certification compliance into a comprehensive issue involving site insurance, operational maintenance costs, and fire safety regulation adherence. The Evercore series commercial energy storage systems (120kWh/261kWh) from Ginlong Technologies have recently passed the UL 9540A:2026 (sixth edition) testing under the supervision of T V Rheinland. Under the most stringent conditions, including deactivated BMS, no active fire suppression engagement, and a full state of charge (100% SOC), the product series demonstrated no external flames, no explosions, no projectile debris, no re-ignition, and zero fire spread beyond the cabinet.

Thermal Runaway Propagation: A Critical Safety Concern for the European Market

Commercial energy storage cabinets are typically densely deployed in factory premises or parking lots of industrial parks. If a single cabinet experiences thermal runaway without effective isolation, it could trigger a chain reaction leading to substantial losses. The UL 9540A test is specifically designed to validate performance under this risk scenario. The key test conditions included: the standard version being UL 9540A:2026 (sixth edition); the tested cabinet being at full charge (100% SOC) with cabinet doors closed; the active fire suppression system (aerosol/perfluorohexanone) remaining inactive throughout the test; and the BMS electronic controls being non-intervening. The test layout positioned the subject cabinet, target cabinets, and observation walls at standard distances to simulate the compact arrangement of real-world sites. The results showed that after triggering cell thermal runaway, there were no external flames, no explosions, no molten material splatter, and no re-ignition, while adjacent cabinets remained unignited. For end users, this test confirms that under conditions where active fire suppression fails, BMS malfunction occurs, or communication is interrupted, the passive physical protection layers of Evercore can still contain thermal runaway within a single cabinet, buying critical time for personnel evacuation and fire response.

Safety Isolation Design That Does Not Rely on Software Control

In energy storage safety incidents, some cases originate from software logic errors or sensor failures. The safety design principle of Evercore is that critical safety barriers do not depend on software operation, meaning physical structures can independently provide protection even when electronic systems fail. Evercore implements this through four distinct physical protection layers.

Cloud-Based AI: Shifting from Passive Alarms to Proactive Early Warnings

While physical structures provide last-resort protection under extreme conditions, the Solis AI platform focuses on risk prediction during normal operation. The early warning capability supports remote monitoring and over-the-air (OTA) upgrades. Through AI algorithms that identify early sub-health characteristics such as micro-short circuits and abnormal internal resistance in cells, the system delivers risk alerts days in advance, transforming maintenance operations from a reactive "wait for failures to be repaired" approach to a proactive "replace potential risks ahead of time" strategy. For arc protection, the AI arc detection module rapidly disconnects DC fault arcs, preventing secondary fires caused by cable aging or poor contact.

Practical Implications for Channel Partners in Project Deployment

First, regarding certification and approval, the UL 9540A report issued by T V Rheinland can be submitted directly to local fire review authorities for risk assessment, which helps shorten the project fire approval cycle. Second, for deployment and maintenance, the system adopts a solar-like installation approach with plug-and-play functionality, supports flexible capacity expansion, and requires only two personnel for routine maintenance, reducing on-site installation risks and labor costs. Third, applicable scenarios include factory parks, large supermarkets, solar-storage-charging stations, microgrids, and commercial projects in distribution network areas. The successful passing of the UL 9540A:2026 test by Ginlong Evercore validates its physical protection capability without reliance on active fire suppression or BMS intervention. Ginlong Technologies will continue to address the market's deep concerns about energy storage safety through transparent, verifiable test data, delivering energy storage solutions to global customers that withstand extreme challenges.