About
Flow-hydrogen is a renewable energy company headquartered in Kassel, Germany specializing in Hydrogen.
Flow making hydrogen happen is a joint initiative by three German transmission system operators—GASCADE Gastransport GmbH, ONTRAS Gastransport GmbH, and terranets bw GmbH—to develop a continental hydrogen transport infrastructure. The program converts approximately 3,700 kilometers of existing natural gas pipelines into hydrogen pipelines, creating a north-south axis connecting Baltic Sea hydrogen imports with central and southern Europe. The northern section was commissioned in December 2025 with approximately 400 km of operational capacity. The southern section is planned for commissioning by October 2030. The network integrates with international import routes via Rostock Port and the Baltic Hydrogen Collector (with feed-in capacity up to 20 GW), connects to European hydrogen storage facilities in Brandenburg, Saxony-Anhalt, and Hesse, and links to major hydrogen production and consumption hubs including the chemical triangle Halle/Leipzig, Rhine-Main-Neckar region, Bavaria, and international connections to Poland, Czech Republic, France, Austria, and Switzerland. The initiative was confirmed as a Project of Common Interest by the European Commission in November 2023 and is part of the hydrogen core network approved by the Federal Network Agency in October 2024.
Headquarters
Kassel, Germany