German powertrain specialist H2FLY has unveiled its latest hydrogen fuel cell system, the H2F175, at the ILA Berlin air show, achieving a peak power of 175kW during bench testing. This new system, an advancement from previous iterations rated at 55kW and 115kW, showcases promising fuel cell stack technology according to Dr Josef Kallo, the company's CEO. Bench tests in Stuttgart demonstrated the system's ability to deliver 150kW consistently and up to 175kW at peak power, although with lower efficiency levels. Future plans include optimizing the H2F175 for efficiency and size reduction, introducing a smaller 'Evo' system next year, and developing a 1MW-class system using multiple 175kW stacks along with a new product, the H2F500. The company aims to target larger aircraft, such as a 40-seat regional turboprop requiring a 2MW system. H2FLY is also focused on seeking partnerships to showcase real-world applications of its hydrogen technology. Although the company had previously flown its experimental fuel cell-powered aircraft, the HY4, to validate hydrogen technology, current priorities lie in ground testing and technology advancement. H2FLY's commitment to decarbonization and zero-emission flight initiatives underscores its dedication to advancing hydrogen fuel cell technology in the aviation sector.