Hydrogen’s status as an energy vector and its high versatility make it a key tool for the integration of the different energy sectors (electricity and gas). In the electricity sector, green hydrogen facilitates easier management of the electricity grid by absorbing the spillage of unconsumed renewable electricity when it is produced. Hydrogen offers great scope for the power system operator to provide both resilience and flexibility on a large scale. For this reason, renewable hydrogen in the transport sector is embodied in the use of hydrogen fuel cells. These are devices that reverse the process performed by electrolysers, i.e., they use hydrogen produced from renewable sources to generate electricity, which provides the electrical energy to drive fuel cell electric vehicles.  

In the gas sector, green hydrogen offers the possibility of being gradually incorporated into the gas network, enabling use to be made of infrastructures and increasing the integration of the energy sectors. The main objective is to research and develop advanced fuel cell technologies for low-cost electrical energy production, as well as advanced technologies that facilitate direct injection of hydrogen to generate heat energy in industrial processes.