Environment-friendly fuel cell vehicles do not emit exhaust fumes but only steam. Hydrogen is put in the tank as "fuel". In the future, the so-called high-pressure electrolyser of the small company Kumatec will manufacture the Green gas more efficiently than has been the case so far and store it. In addition, the facility of the special machine builder can be built in series and sold at lower prices than is usual on the market. The technology optimises a proven method in a new way and thus, for example, can help expand the petrol station network for fuel cell vehicles. An important building block for the energy turnaround.