To ensure energy security and achieve its climate protection goals, Germany will import large quantities of hydrogen in the future. Dimethyl ether (DME) is an environmentally friendly, non-toxic, efficient, and economically attractive gas that shows great promise as an energy source for hydrogen and its derivatives. The Fraunhofer Institute for Solar Energy Systems ISE has developed a new, particularly energy-efficient synthesis process for its production, which could become a game changer for DME production and thus for the hydrogen economy.