Hong Kong is on the brink of becoming the first city in the world to be powered entirely by hydrogen energy, marking a significant milestone in the global shift towards green energy solutions. The city's hydrogen trials have delivered promising results, surpassing expectations and setting new benchmarks in the integration of hydrogen into energy sources. With HK Electric leading the way in innovative strategies and infrastructure development, Hong Kong is poised to play a pivotal role in the emerging hydrogen energy economy. The collaboration between HK Electric and Mitsubishi at Takasago Hydrogen Park in Japan signifies a major leap in technological innovation, establishing Hong Kong as a frontrunner in combating climate change through energy transformation. Government support for hydrogen trials and projects further propels Hong Kong towards a sustainable future, with ambitious plans to significantly reduce carbon emissions by 2035. The success of hydrogen trials not only highlights the efficiency and cleanliness of hydrogen but also positions Hong Kong as a potential hub for the global hydrogen industry. By embracing hydrogen as a reliable energy source, Hong Kong sets an example for other cities worldwide seeking to decarbonize and transition towards cleaner energy options. The city's proactive stance on sustainable development, coupled with strategic partnerships and advancements in technology, underscores the reality that hydrogen power is not just a futuristic concept but a tangible solution for today. As Hong Kong continues its hydrogen revolution, it stands at the forefront of a new era in energy transition, offering insights and inspiration for cities globally. The city's commitment to a hydrogen-powered future not only promises environmental benefits but also paves the way for economic growth and international collaboration. With the potential to operate entirely on hydrogen, Hong Kong may serve as a blueprint for sustainable cities worldwide, driving the momentum towards a cleaner and greener future.