As the world moves towards cleaner alternatives in the mobility sector, hydrogen is emerging as a crucial player in the decarbonisation puzzle. Dr. Rajalakshmi, Professor of Practice at IIT – Dharward, highlighted the transformative potential of hydrogen at the SAE India Automotive Leadership Summit. Hydrogen, serving as both a fuel and an energy carrier, offers an alternative to fossil fuels that is abundant, versatile, and applicable across various transport modes. The article emphasizes the role of hydrogen in decarbonisation, with a focus on green hydrogen produced through electrolysis as the cleanest option. Despite challenges such as production costs and infrastructure limitations, hydrogen fuel cells are seen as a promising solution for commercial vehicles due to their comparable performance to internal combustion engines and faster refuelling times. The comparison between electric vehicles (EVs) and hydrogen fuel cells showcases the advantages and challenges of each technology. While EVs are efficient and silent, they face limitations in range and charging time, whereas hydrogen addresses these concerns but presents challenges in terms of production costs and infrastructure. The article also discusses the applications and innovations in the hydrogen sector, including stationary power, aviation, and shipping. It mentions the use of simulation tools like NREL’s FASTSim for developing different vehicle configurations, emphasizing the potential of hydrogen in various industries beyond transportation. The article underlines the importance of policy support, public-private partnerships, and cost reductions through scaling for the commercialisation of hydrogen. It notes that despite the current leadership in hydrogen adoption by countries like China, Korea, and Japan in the commercial vehicle sector, there are challenges related to demand, cost volatility, and infrastructure. The conclusion highlights that while hydrogen is not a standalone solution, in conjunction with battery electric and hybrid technologies, it forms a vital part of a diversified clean mobility future. The roadmap for hydrogen’s journey from the lab to the road involves continued research, simulation-driven development, and proactive policy frameworks to accelerate its adoption and impact in the global decarbonisation efforts.