The article highlights the growing importance of green hydrogen as a breakthrough fuel that offers zero emissions, high efficiency, and rapid refuelling capabilities. In the quest for cleaner transportation solutions, the focus has shifted towards sustainable energy sources like green hydrogen, which has the potential to revolutionize various industries. Unlike internal combustion engines, hydrogen fuel cells tap into the chemical energy of hydrogen directly, making them more efficient and environmentally friendly due to water vapour being the only by-product. This feature positions hydrogen as a clean energy source suitable for powering vehicles and industrial processes, with benefits such as longer driving range, faster refuelling times, and superior acceleration. However, challenges exist in scaling up hydrogen fuel cell production for industrial use due to the complexity and cost associated with manufacturing fuel cells. Automation, advanced materials, and AI-driven quality control are being explored to make the production process more efficient and cost-effective. The article also discusses the shift towards hydrogen-based alternatives in industries like steel, cement, and chemicals to decarbonise processes traditionally reliant on coal and natural gas. One major obstacle to mainstream adoption of green hydrogen is the cost and efficiency of electrolysis technology, which currently relies on rare and expensive metals like iridium and platinum. To overcome this challenge, manufacturers are focusing on developing alternative catalysts using transition metals and other abundant materials to reduce costs and dependency on rare elements. Investing in manufacturing infrastructure, automated assembly lines, and modular electrolyser designs is crucial to improving production efficiency and making green hydrogen cost-competitive with fossil fuel-derived alternatives. Overall, the article emphasizes the potential of green hydrogen in transforming transportation and industrial manufacturing while highlighting the importance of addressing challenges to enable widespread adoption.