My goal was to develop a CO2-free heating system that produces hydrogen and heat predominantly during summer and uses the stored hydrogen to provide heat throughout the entire year. This avoids the emission of greenhouse gases, which are responsible for global warming. Initially, it seemed unlikely that I would be able to reach my goal as solar cells seemed to be too inefficient, while solar thermal collectors only generate heat. Later, I thought of using wind energy as well. I solved the remaining challenge of energy storage with an innovative combination of a hydrogen tank and an insulated hot water tank, which allowed me to store energy for a sufficiently long time to reach my goal.
