The energy transition is progressing, power grids are upgraded, PV and wind turbines are expanded. Natural gas becomes a discontinued model – and with it the pipelines. Part of it will be preserved for green gas and hydrogen. Both will be important in a world of renewables in order to provide enough energy even in winter dark downs and, above all, to help the heavy industry with decarbonization. After all, electricity can hardly be saved effectively for a long time – but in the form of hydrogen.