Bramble Energy, in collaboration with Equipmake, Aeristech, and the University of Bath, has achieved a crucial milestone in the Hydrogen Electric Integrated Drivetrain Initiative (HEIDI) project. The project, funded by the Advanced Propulsion Centre UK, aims to develop a hydrogen double-deck bus featuring Bramble Energy's innovative printed circuit board fuel cell (PCBFC™) technology. After a year of progress, the consortium has completed concept designs for the bus and fuel cell system, emphasizing scalability and innovation. The HEIDI project highlights Bramble's commitment to addressing global challenges through technology. Achievements include finalizing concept designs, showcasing promising results in fuel cell stack testing, and predicting a range of up to 280 miles with rapid refueling times. These advancements position the project as a sustainable and efficient solution for public transport. Moving forward, Bramble Energy and partners will focus on manufacturing key components for the project, aiming to revolutionize commercial vehicles with net-zero emissions. Dr. Vidal Bharath, CCO at Bramble Energy, emphasizes the project's potential to revolutionize public transport and reduce CO2 emissions significantly. The integration of fuel cell stacks into the hydrogen bus not only advances sustainable transport but also supports job creation and environmental protection. The HEIDI project represents a significant step towards a sustainable, cost-effective, and zero-emission future in the transport sector. By prioritizing innovation and scalability, the project aims to benefit both the industry and its customers, showcasing the potential of hydrogen technology in transforming public transport.