One way of regulating the fluctuating energy supply from renewable resources with the help of wastewater treatment plants and integrating it into the supply grid is to convert electrical energy into more storable forms of energy like hydrogen.
The potential here lies in the production of hydrogen in conjunction with the generation of our own electricity through wind energy and coupling with wastewater treatment. The pure oxygen produced in addition to hydrogen during electrolysis can be used locally to produce ozone for the removal of trace substances or for the aeration required in the biological purification stage of sewage treatment plants. In addition, the plasmalysis process of the technology partner Graforce will be used to produce hydrogen directly from the sewage water.
The pilot plant is scheduled to go into operation in May 2021. Subsequently, it is planned to use hydrogen to fuel the vehicle fleet.