Amprion selects Dragados Offshore and Siemens Energy to deliver LanWin converters

4C Offshore | Tom Russell
By: Tom Russell 11/01/2023 Dragados Offshore

Dragados Offshore and Siemens Energy have been commissioned to deliver the High Voltage Direct Current (HVDC) converter platforms of both the LanWin1 and LanWin3 HVDC grid connection projects by Amprion Offshore.


The projects are the first of 2 GW bi-pole converter systems awarded, as part of the transmission of electrical energy generated in offshore wind parks in the German North Sea, part of Germany’s Energy Transition, where Amprion is the transmission system operator responsible for both systems. Furthermore, the two projects are among the first of the overall 2 GW offshore programme to be developed in Northern Europe.

The two HVDC onshore stations for LanWin1 and LanWin3 are located at the Wehrendorf and Westerkappeln grid connection points respectively, where they are connected to the 380 kV links yet to be built for the AC transmission grid.


Dragados Offshore is responsible for providing the offshore platforms, including detail design and engineering, procurement, fabrication, construction, load out, transportation, installation and hook-up of the offshore platform, and installation and commissioning of its platform systems. The topsides have a weight of approx. 24,000 tons each and the jackets of approx. 10,000 tons each.

Siemens Energy is responsible for the HVDC systems, as well as the complete onshore converter stations.


LanWin1 and LanWin3 are scheduled to be in commercial operation at the end of 2029 and 2030 respectively. Wind farms will be connected to both offshore stations via 66 kV AC direct connection systems and convert the power to 525 kV DC voltage for transmission to shore.


For more information on offshore wind farms worldwide, click here.