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Trelleborg to protect Hornsea Two cables

By: Tom Russell 31/03/2020 Trelleborg

Cables General

Trelleborg has secured a contract from Ørsted to provide four integrated cable protection systems for the Hornsea Two offshore wind farm. Trelleborg’s NjordGuard cable protection system will be used to protect the inter array power cables from fatigue, over-bending and abrasion, at the entry point of the monopiles.

Design, testing and manufacture of the NjordGuard cable protection system will take place in Trelleborg’s manufacturing facility in the North of England. Project engineering works will commence immediately, with installation activities scheduled for execution in 2021.

NjordGuard is an integrated cable protection system, designed and developed to protect offshore wind farm and substation static power cables from over-bending, fatigue, abrasion and impact, in both monopile and J-tube applications. It aims to protect the cable both during installation and throughout life. NjordGuard can be installed, removed and reused without the need for Remotely Operated Vehicles (ROVs) or diver intervention, using a patented ball and groove connector technology.

Andy Smith, Product Group Manager for renewables at Trelleborg’s applied technologies operation, commented: "Trelleborg’s NjordGuard provides lifetime protection of the cable at the critical monopile entry point and is easy to both install and remove without diver intervention. We are extremely pleased that Ørsted has selected Trelleborg to supply NjordGuard for Hornsea Two and welcome the opportunity to continue our successful relationship.”

Patrick Harnett, Senior Programme Director for Hornsea Two, said: “In our continued bid to support and promote a strong national supply chain, we are pleased that Trelleborg’s product will be made locally in the North of England. Once complete, Hornsea Two will be the world’s largest offshore wind farm and it is important to us at Ørsted that where possible, we are able to utilize UK industry for the manufacturing and fabrication of components for this global accolade.”

The 1.4 GW Hornsea Two offshore wind farm secured a Contract for Difference in September 2017. Once operational in 2022, the wind farm is expected to supply clean electricity to over 1.3 million homes. It will consist of 165 Siemens Gamesa SG 8.0-167 DD turbines covering an offshore area of 462 km² .

Hornsea Two is one of four projects Ørsted is developing off the Yorkshire coast. It recently commissioned the Hornsea One offshore wind farm, 120 km off the coast of Lincolnshire and Yorkshire. It is currently the world’s largest offshore wind farm operational offshore wind farm features 174 Siemens Gamesa SWT-7.0-154 turbines with an overall capacity of 1.2 GW. It is anticipated that the project will produce enough power for more than 1 million homes annually.

Ørsted is also developing the Hornsea Three and Hornsea Four projects. Hornsea Three is currently awaiting development consent approval from the Secretary of State and Hornsea Four recently entered a formal phase of community consultation.

For more information on offshore wind farms worldwide, click here. Alternatively, you can view projects across the globe using 4C Offshore's Interactive Map.

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Trelleborg to protect Hornsea Two cables

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