September 22, 2020

ACS is awarded the project to connect a wind farm on the German North Sea coast




The ACS group, through its subsidiary Dragados Offshore, has been awarded, in consortium with Siemens, the development of the Borwin5 project HVDC conversion platform for TenneT, as reported by the company chaired by Florentino Pérez.

Specifically, the project consists of an electric power transmission system with a capacity of 900 megawatts between the He Dreiht offshore wind field, operated by EnBW, on the German North Sea coast and the onshore converter point. With the BorWin5 project, the customer wants to achieve a direct continuous connection in Cluster 7 of the North Sea.

Dragados Offshore is responsible for the supply of the offshore platform (including detailed engineering and design, purchase, manufacturing, construction, loading, transportation and installation of the offshore platform, and installation and commissioning of its systems), while the work to be carried out by Siemens includes the HVDC equipment of the platform, as well as the development of the substation on land.

Borwin5 is a independent platform, which includes housing module and helipad, and has a total weight, including Siemens HVDC equipment, of approximately 12,000 tons, while the jacket weighs approximately 7,000 tons.

“An important milestone”

The ACS group has highlighted that the contract is “an important milestone” for Dragados Offshore, since strengthens its activities in the delivery of platforms for the ‘offshore’ wind industry by building a “leading-edge project in its sector.”

The official start date of the project is set at el August 10 of this year and will provide workload at the Dragados facilities in Puerto Real (Cádiz) until the departure of the platform, which is scheduled for the end of April 2025.

The start of energy transmission through the HVDC system will be in the fourth quarter of 2025 and the Final delivery to the customer is scheduled for the first quarter of 2026.

Borwin5 is the second project of an HVDC platform awarded by TenneT to Dragados Offshore in consortium with Siemens and provides a “perfect fit of workload and continuity” with the first awarded project, Dolwin6, which continues to be carried out in the Dragados Offshore yard in Puerto Real, with completion scheduled for 2022 .

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