The article highlights the critical need for developing hydrogen infrastructure in Europe to drive decarbonization efforts and achieve climate targets. The lack of adequate infrastructure is identified as a key obstacle hindering the growth of the hydrogen market across the continent. By connecting production to demand centers, enabling imports of cost-effective hydrogen, and ensuring storage capacities, a pan-European hydrogen network can unlock significant economic benefits. Reports from METIS and French TSOs emphasize that a coordinated approach involving a combination of power and hydrogen grids is more cost-effective than isolated strategies. The article also underscores the role of hydrogen in enhancing flexibility in power systems dominated by electrification and renewables. With the European Commission projecting a substantial increase in electricity demand by 2050, the need for grid expansion and flexibility is critical. Despite the ambitious grid expansion plans, there is a growing need for seasonal flexibility and substantial investments in remedial actions to address grid limitations. The investment requirements for hydrogen infrastructure are comparatively lower than those for electricity grids, signaling a more cost-effective pathway for decarbonization. The article concludes by emphasizing the importance of investing in hydrogen networks to facilitate the energy transition and support the growth of renewable hydrogen production.