ZeroAvia and PowerCell have announced a strategic partnership to advance fuel cell technologies for aviation applications. They will focus on developing intermediate and high-temperature fuel cells to enable more energy-intensive uses, such as powering large fixed-wing aircraft and rotorcraft. ZeroAvia plans to incorporate PowerCell's low-temperature proton exchange membrane stacks in their powertrains, starting with a 600kW powertrain designed for up to 20 seat aircraft, and progressing towards a 2000kW system for 40-80 seat aircraft. The collaboration aims to enhance the power density of the fuel cells, with a roadmap to achieve 3+ kW/kg at the system level. By increasing operating temperatures, the companies aim to simplify the architecture, reduce cooling requirements, and improve power-to-weight ratios. Both ZeroAvia and PowerCell express confidence in the future commercial deployment of hydrogen-electric aircraft, citing environmental and cost benefits that will drive adoption in the aviation industry. ZeroAvia has already conducted extensive testing of its prototypes in the UK and the US, demonstrating progress towards cleaner and more efficient propulsion systems for regional turboprop aircraft.