Hydrogen is an important prospect for the whole of Europe. With Flow - making hydrogen happen we are creating a high-performance pipeline system for green hydrogen from 2025.

We are linking international hydrogen markets and thus opening up supply opportunities for large quantities of hydrogen to industry. The first pipeline sections are to be converted as early as 2025. This will enable CO2 emissions to be reduced faster than before. With Flow - making hydrogen happen we are providing an important building block for the European hydrogen ramp-up and the energy transition.


Planned Pipeline Route


Flow – making hydrogen happen in 9 points


Collaborative mission

We decarbonize industry. With hydrogen as a central part of the energy transition.


Our contribution

Realization of a high-performance north-south transport route for climate-neutral hydrogen by 2028.


1100 km pipeline

Lubmin - Schwedt - Berlin - Leipzig - Leuna - Erfurt - Ludwigshafen - Karlsruhe - Stuttgart


Rapid implementation

Conversion of existing natural gas pipelines to hydrogen from 2025.


Large transport capacity

Generation in the Lubmin region and in the Baltic Sea, feed-in capacity up to 20 GW.


High security of supply

Resilience through possible connection to cavern storage facilities in Brandenburg, Saxony-Anhalt and Hesse and diversification of transport routes.


Powerful network

Connection to the IPCEI projects doing hydrogen and Green Octopus Mitteldeutschland as well as to the projects Hydrogen for Baden-Württemberg, HyPipe Bavaria and MosaHYc.


Phased expansion

Commissioning of first sections in 2025, expansion to Baden-Württemberg by 2028.



Extensions to Bavaria, Austria, Switzerland, France, the Czech Republic, Poland, Denmark and to the northwest possible.


We use existing infrastructure to rapidly open up important areas in Europe for hydrogen ramp-up.

Flow - making hydrogen happen connects planned offshore pipelines of Baltic Sea countries with the Czech Republic. Further conversions to the southwest will also enable France and Austria to get connected. German areas such as the chemical triangle Halle/Leipzig and the Rhine-Main-Neckar region will also benefit.

Potential consumers of green hydrogen will benefit massively from a secure supply of large quantities of the climate-neutral and highly flexible energy carrier and raw material.

The connection to international import routes, hydrogen storage facilities, other large-scale hydrogen transport projects and the European Hydrogen Backbone create additional supply security.

We make hydrogen happen.


Project partners

Associated partners


You are planning to produce or consume hydrogen in large quantities?

Join us with your project!

    GASCADE Gastransport GmbH
    Dr. Dirk Flandrich

    ONTRAS Gastransport GmbH
    Holger Sprung

    terranets bw GmbH
    Stephanie Seybold

    More Information
    Associated project ONTRAS H2 start-up grid 2030
    With the ONTRAS start network for hydrogen, which covers around 950 kilometres, ONTRAS is laying the foundation for a hydrogen infrastructure in central and eastern Germany. About 60 percent of the hydrogen pipelines are ONTRAS natural gas pipelines that will be repurposed for hydrogen, 40 percent are new pipelines to be built. As part of the European Hydrogen Backbone, the ONTRAS start network for hydrogen connects producers and consumers in central and eastern Germany and provides access to import points and storage facilities. This creates flexible transport options and a high level of supply security. The core of the hydrogen start network are the two pipeline projects doing hydrogen and Green Octopus Mitteldeutschland.
    Associated initiative Hydrogen for Baden-Württemberg
    With its initiative "H2 for BW", terranets bw is committed to connecting Baden-Württemberg to the German and European hydrogen infrastructure. The goal to achieve is that hydrogen will become an real option in Baden-Württemberg from 2030. The platform, hosted by terranets bw, transparently provides plans and detailed conversion projects and identifies future hydrogen requirements. Together with network operators and hydrogen producers, the company constantly works on resilient transport routes from the sources to the key areas of requirement in Baden-Württemberg.
    Associated initiative mosaHYc
    With the infrastructure project mosaHYc (moselle-saar-hydrogen-conversion), the distribution network operators Creos (Germany) and GRTgaz (France), in cooperation with the energy company Encevo (Luxembourg), want to establish an approximately 100-kilometre-long hydrogen pipeline in the Grande Région. About 70 kilometres of existing gas pipelines, some of which are out of service, are to be converted into hydrogen pipelines. An additional construction of about 30 kilometres of hydrogen pipelines will create a first hydrogen island network. Specifically, existing pipelines in the area of Völklingen (Germany), Carling (France), Bouzonville (France) and Perl (Germany) will be examined for their suitability as hydrogen pipelines. A major new construction will be built from Bouzonville in the direction of Dillingen. The island network will provide a capacity of up to 120,000 m3/h, depending on the maximum operating pressure. The pipeline network is scheduled to be commissioned in 2027.Thus, the project could contribute decarbonising the steel industry in saarland, mobility uses and address major environmental and societal challenges including the topic of improving air quality in the Saar-Lor-Lux region.

    MosaHYc - Grande Regione Hydrogen
    Associated initiative HyPipe Bavaria
    bayernets GmbH sets the course for hydrogen import to Bavaria and establishes a hydrogen hub in Southern Bavaria. The project HyPipe Bavaria – The Hydrogen Hub lays the foundation for the first high-performance pipeline system for green hydrogen in Bavaria until 2030, and is mainly centred around the utilization of existing repurposed infrastructure. With about 300 kilometres HyPipe Bavaria –The Hydrogen Hub is an important part of the European Hydrogen Backbone connecting the potential hydrogen sources from various directions with end costumers.

    HyPipe Bavaria – The Hydrogen Hub