The article discusses the importance of electrolyser technology in the context of hydrogen-powered fleets and the energy transition. It highlights how decentralization of hydrogen production via on-site electrolysers can offer cost advantages in the commercial transport sector. By having a vast network of smaller-scale production facilities, supported by renewable energy sources, the transportation and storage costs of hydrogen can be reduced. The article emphasizes the role of proton exchange membrane (PEM) electrolysers, such as those developed by IMI, in responding efficiently to variable renewable energy sources, ensuring a stable supply of pure hydrogen for fuel cells and H2 combustion engines. Moreover, the article underscores the potential benefits of increasing fuel cell vehicles to alleviate strain on national grids and utilize excess renewable energy. It also addresses the importance of on-site hydrogen production, emphasizing the scalability, modularity, and affordability of electrolyser solutions for the transport sector. The article concludes by highlighting the resilience and market stability provided by decentralized production, reducing exposure to market fluctuations and ensuring a minimum service level. Overall, the article presents a positive outlook on the role of electrolyser solutions in promoting the adoption of hydrogen-powered fleets for a sustainable future.