MaHeiDo pipeline construction project
Security of supply and switch from L-gas to H-gas
The MaHei (Marbeck to Heiden) and HeiDo (Heiden to Dorsten) pipelines are needed for the conversion of the local service area from L-gas to H-gas and they can also be used for various H2 projects in and around Dorsten.

Facts and figures
MaHei: 1,5km
HeiDo: 17km
Pipeline length
buried
Type of installation
100 bar
Design pressure
MaHei: DN 600
HeiDo: DN 500
Pipe diameter
–
Construction
late 2026
Completion
Planning status
The MaHei and HeiDo pipeline construction projects have received planning approval from the relevant regulatory authority (Münster district government). This means that the pipeline construction projects have been approved under public law and may now go ahead. The main construction work for the pipelines will start in spring 2026.
