To Content

In our Energy Grids division, we offer our customers comprehensive solutions for the construction of pipelines for the transport of natural gas, hydrogen, district heating and water, as well as the construction of underground power cables.

In addition to the engineering of pipeline or power cable grids, we cover the entire range of services for pipeline construction to wastewater technology to underground power cable construction for the energy grids of the future.


  • Pipeline works up to DN 1400
  • Complex manual and automatic welding processes
  • Weld seam coating
  • Culvert laying
  • Special laying procedures
  • LWL and cable protection pipe laying
  • Recultivation work
  • CCP systems (cathodic corrosion protection)
  • Non-destructive testing
  • Pipeline drying and inspection
  • Comprehensive documentation

Industrial & distribution pipelines

  • Underground pipeline construction
  • Overhead pipeline systems
  • Pressure and gravity pipelines
  • Nominal diameter up to DN 3200
  • Pressure ratings up to 3,000 bar
  • Steel, stainless steel and cast iron
  • PE, PVC, GFK, CFK and composite materials
  • Stoneware, concrete and prestressed concrete
  • Materials for special applications
  • Grid safety and control systems

Power cables

  • Cable construction up to high and extra high voltage levels (up to 525 kV)
  • Complex HDD drilling procedures (horizontal & directional drilling)
  • Cable pulling, handling and installation
  • Landfall connections of offshore wind farms
  • Protective pipe systems PE, PE HT, PP
  • Sheet piling, deep foundations, pile driving, pressing, etc.
  • Installation of liquid soil according to RAL 507
  • Connection & control points
  • Recultivation works

Water Management

  • Water and wastewater pumping stations
  • Wastewater treatment plant construction
  • Small sewage treatment plants
  • Infiltration systems
  • Vacuum drainage
  • Drainage works
  • Leak test of sewers
  • Sewer construction and renewal