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TenneT gets Borssele greenlight

By: Tom Russell 27/03/2017 TenneT

General Ports Substations Windfarms

Following "intensive" consultations the Flemish and Dutch Governments have reached an agreement on the route for the subsea cables which will connect the Borssele offshore wind farms.

The Port Authority of Antwerp will withdraw its appeal to the Council of State which it filed in August 2016 due to concerns that the cable route poses risk for maritime traffic travelling to and from the port via the Westeschelde, an important shipping route to the Belgian port.

Concerns were raised on how the cable can be laid without being damaged by anchors or future developments along the route. The involved parties agreed that the cable will need to be buried deep enough into the soil and regularly monitored to ensure it is adequately buried depth following natural soil movement.

The cables will be installed at a depth of 1m in the North Sea, and at a depth of 3m along the entire route in the Western Scheldt estuary, up to the point where they come onshore at Borssele.

With the agreement in place the irrevocable licenses for the grid connection project have been awarded, paving the way for TenneT to begin the realisation of the project.

Last month HSM Offshore was been awarded a contract by TenneT for the construction of the Borssele Alpha offshore transformer station. The contract also includes an option for the construction of a transformer station for the Borssele Beta project.

The contract for the supply and installation of onshore and subsea cables for Borssele Alpha, and optionally Borssele Beta, was awarded to a consortium of NKT cables GmbH & Co. KG and VBMS B.V. (Boskalis) in November 2016.

The total length of cable from the onshore station at Borssele to the Borssele Alpha platform is approximately 61km. The offshore grid connection consists of two 220 kV subsea cables with a capacity of 350MW each. The cables will feature so-called “dynamic capacity” technology which means that a single cable can be temporarily subjected to a load of up to 380MW.

Located south-west of the Netherlands to the Dutch onshore grid the rights to the four Borssele wind farms were tendered in 2016. The Dutch Government held two tenders rounds with rights for Borssele I & II awarded to DONG Energy in July and a consortium of Shell, Van Oord, Eneco and Mitsubishi securing the rights to Borssele III & IV in December.

For more information please follow the links provided. You can also click here to view projects worldwide on our interactive map.

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TenneT gets Borssele greenlight

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