Energy should be generated affordably in a sustainable manner such as by sun and wind. But what in windless or dark weather? One problem, however, is the dependence of renewable energy on the weather. hydrogen is considered the most important energy carrier for a sustainable energy economy. Therefore, carbon-free energy carriers are needed to bridge the imbalance between supply and demand. Hydrogen is considered one of the most important carriers in this respect. However, hydrogen is highly flammable and therefore needs to be stored at high pressure or under cryogenic conditions. This complicates transport and storage of energy.

Team Solid and their partners offer a revolutionary solution to this by using iron as a 'storage medium' for hydrogen. With their steam-iron concept, in which pure iron reacts with high-temperature steam to form hydrogen and rust, the hydrogen can be used for various purposes. By using hydrogen, the rust can be regenerated for its next use. This has created a safe system for transporting and storing hydrogen. Tycho Graat and Joost van der Kraan from Team Solid were prepared to tell more about it.