#Switzerland #Energy Storage #Certification #H55 #Sion

H55 Achieves Safety Testing Milestone

H55, a pioneering company based in Switzerland, has recently announced the successful completion of its System Safety Function Verification Testing for its integrated Energy Storage System (ESS). This significant achievement marks an important milestone in the journey towards validating and obtaining certification for H55's cutting-edge technology.

During the testing phase, H55 meticulously evaluated its ESS, which integrates various critical subsystems into a fully operational architecture. The impressive test setup included component parts such as Battery Modules, Battery Management Units, Energy Flow Counters, Protection and Power Distribution Units, and the Charge Control Unit. Each element plays a vital role in ensuring optimal performance and safety in aviation environments.

The testing campaign specifically aimed to assess system-level performance, communication reliability, and crucially, the safety functionality under realistic operating conditions. The outcomes were promising, confirming seamless coordination among all subsystems, which guarantees predictable and stable system behavior across a variety of scenarios.

One of the key highlights of the testing was the successful verification of essential safety functions at the system level. H55 confirmed the capacity for automatic and controlled disconnection of power in the event of predetermined fault conditions or other non-standard operating situations. This function is crucial for ensuring the safety of operations in aviation contexts.

Anthony D'Ambrisi, Head of the Design Organization at H55, commented on the significance of this milestone. He stated, “This accomplishment not only marks a step forward in de-risking our technology and certification roadmap but also demonstrates our preparedness for certification on a system-wide scale. We’ve validated our safety functions within a fully integrated architecture, a critical aspect as we move towards large-scale deployment.” Unlike many competitors developing systems in isolation, H55 has strategically engineered its ESS to align with certification requirements from the outset, working in close cooperation with aviation authorities, including EASA. Instead of approaching development through experimental or temporary means, H55's policy focuses on aerospace-grade standards, thus ensuring reliability and compliance with regulatory standards.

With over ten years of experience in electric aviation, H55 adopts a holistic safety philosophy that goes beyond simply managing failures. Instead, the company emphasizes the importance of detecting and addressing potential risks before they escalate, which is vital for achieving high reliability. This approach is critical in the demanding context of aviation.

This successful testing marks a crucial progression from validation to deployment for H55's technology. As the demand for certified electric propulsion solutions continues to rise, H55 is well-positioned to support aircraft manufacturers and operators in their transition toward electrification within the aviation sector.

As the aerospace industry shifts toward sustainability by reducing carbon emissions, H55's integrated and certifiable energy storage systems are paving the way for a new generation of electric aircraft that are ready not just to fly, but to scale efficiently.

About H55

Founded as a technological legacy of the Solar Impulse project, H55 specializes in certified electric propulsion and energy storage systems tailored for aviation. The company’s mission is to propel electric aviation into a new era by transforming commercial lithium cells into aviation-safe Energy Storage Systems that obtain regulatory approval, gain insurance backing, and can be repeatedly deployed as a certified propulsion platform across various aircraft programs.

With a foundation built on over two decades of direct electric aviation experience, H55 has successfully designed, constructed, and flown multiple electric aircraft, amassing over 2,000 hours of flight time without battery-related incidents. This operational depth equips the company to execute not merely comply with certification-grade programs. Supported by an experienced leadership team, H55 combines technological scaling with hands-on operational execution, ultimately facilitating the efficient transition from certified designs to series manufacturing.

H55's strategy incorporates a platform-based approach in which certification evidence compounds across programs. This method not only reduces risk during adoption but also streamlines the capital-efficient deployment of electric and hybrid-electric aircraft.