Welcome to the website of the EFZN water electrolysis competence network

Water electrolysis plays a key role in the generation of hydrogen from renewable sources. It allows for the efficient conversion of renewable electrical energy and water into hydrogen and oxygen. So far hydrogen generation through water electrolysis was much of a niche application and was used where there was either no access to natural gas infrastructure, where electric energy could be obtained at low costs or where very high demands were made with regard to gas purity. Thus, research and development on water electrolysis machines was largely latent since the 1960s/1970s. In future, however, a massive increase in capacity will be required: In Germany alone, the current hydrogen demand amounts to 1.8 million tons per year (Worldwide: 54 million tons per year) - the future demand for hydrogen is estimated to reach at least double this amount. In order to generate these quantities through electrolysis, the electrolysis performance must be immensely increased.

In the water electrolysis competence network we bundle the research and development competences of water electrolysis partners in Lower Saxony under the roof of the Energy Research Centre of Lower Saxony (EFZN). We concentrate on the currently most important technologies: alkaline electrolysis (AEL), alkaline membrane electrolysis (AEM), acidic membrane electrolysis (PEMWE) in the low-temperature range, as well as high-temperature water electrolysis and co-electrolysis in oxide-ceramic systems (SOEC).

    Interested in cooperating with us?

    Dr.-Ing. Maik Becker

    Central contact partner of the EFZN water electrolysis competence network

    The following partners are members of the EFZN water electrolysis competence network:

    • DLR-Institute of Networked Energy Systems/Oldenburg, Section Fuel Cells > find out more
    • DLR-Institute of Networked Energy Systems/Oldenburg, Section Urban and Residential Technologies > find out more
    • Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute, HHI, Fiber Optical Sensor Systems Department > find out more

    • Leibniz University Hannover, Institute of Electric Power Systems > find out more
    • Clausthal University of Technology, Clausthal Institute of Environmental Technologies (CUTEC), Department of Chemical Energy Systems > find out more
    • Clausthal University of Technology, Research Centre for Energy Storage Technologies (EST) > find out more
    • Clausthal University of Technology, Institute of Chemical and Electrochemical Process Engineering > find out more

    The network partners are organised in the following committees/bodies:

    • VDE-ETG/VDI-GEU technical committee „Hydrogen and Fuel Cells“ > find out more
    • EU harmonization group „Developing Test Protocols for Low Temperature Water Electrolysis" > find out more
    • Working group „Hydrogen for the North German Energy System“ of Academy of Sciences and Humanities in Hamburg > find out more

    Photo: © CUTEC

    Photo: © IfES