Beyond the surface Why WHY HYDROGEN? Hydrogen's potential as a renewable energy source lies in its ability to store and balance energy from intermittent renewable sources. Currently used renewable energy sources, such as wind and sun, are intermittent, which means they do not produce energy continuously due to their dependence on weather conditions. Storage of hydrogen underground can act as a strategic reserve: thanks to its ability to be stored for long periods, it represents a continuous energy supply capable of improving the resilience of the energy system. Furthermore, due to its versability to be used in a wide range of applications, from powering vehicles to providing backup power for buildings, using hydrogen as an energy source can help reduce greenhouse gas emissions and contribute to the fight against climate change. WHY UNDERGROUND STORAGES? Using underground storages for hydrogen, such as porous media and rock and salt caverns, is advantageous due to their ability to provide substantial storage capacity and enhanced safety. These subterranean options minimize the risk of hydrogen coming into contact with atmospheric oxygen, thereby reducing the potential for explosive hazards that are more prevalent in above-ground storage. Why
