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Offshore Power Supply Connections, German North Sea

The generation of wind energy out at sea places the highest demands on people, material and management. This also applies to the preferably loss-free transport to the consumer. Drees & Sommer supports the planning and implementation of power supply connections for wind farms in the North Sea as part of a consortium in the clusters BorWin, HelWin, DolWin and SylWin.

Additional value

  • Quicker teambuilding for the required capacities
  • Many highly qualified Drees & Sommer employees for comprehensive multi-project management
  • Optimisation of project organisation and processes

Project data


TenneT Offshore GmbH, Bayreuth/Lehrte


German North Sea, Germany

Power supply connection systems, each consisting of:

AC submarine cable (OWP connection), Offshore platform, Converter and switchgear (offshore/onshore), DC submarine cable (HVDC), DC land cable (HVDC), Operating control system, Network management systems

Project duration:

September 2010 – end of 2018

Individual services

  • Schedule planning and tracking
  • Cost planning and tracking
  • Risk management
  • Contract and follow-up management, change request
  • Documentation
  • Project lead function platform (BorWin2)
  • Project lead function cable (BorWin2)
  • Management subproject onshore station (SylWin1)
  • Coordination OWP (SylWin1)
  • Link Management (DelWin1)
  • Support PM0

Location map