4C is now TGS

We are excited to announce a significant milestone in 4C Offshore's journey. Our integration into the TGS family marks the beginning of a new era in offshore wind market intelligence.

Learn what this means for you!

Orsted to replace Cable Protection System on WOW04

By: Rameeza Haq Duggal 11/05/2021 Marine Management Organisation

Cables General Interconnectors Windfarms

A cable protection system (CPS) has failed on an inter-array cable at WOW04 B16, at the Walney Extension offshore wind farm. Ørsted has secured a marine license to replace the faulty CPS.

The new CPS will be installed on top of existing scour protection. The work details include: the vessel will position itself next to failed CPS and divers will make their way via an umbilical to the affected array cable, the existing CPS will be inspected for any loose or recoverable parts, a tripod will be used to lift the cable for the repair works, ~1 m long shells will be added around the cable, diver will return to vessel after completing the repair work.

In its Q1-2021 report, Walney Extension’s developer, Ørsted mentioned a cable protection system issue on array cables, which impacted up to 10 offshore wind farms across the UK and continental Europe. The issue occurs when the CPS moves across the scour, abrading the CPS and in the worst-case scenario causing the cables to fail.

Walney Extension is a 659 MW offshore wind farm, located in the Irish sea. The project is a shared ownership project between Ørsted, PFA and PKA. Walney Extensions consists 87 turbines, 190 km array cables, and 2 export cables, each 68.3 km long. The wind farm entered full operations in 2018.

This story was first reported exclusively for 4C Offshore subscribers. For more information, click here

Premium

4C Offshore Premium, our most popular subscription, gives you full access to use the 4C Offshore WebApp which includes exclusive offshore wind, transmission and vessel reports, news and downloads.

Request a 30 minute Demo

Orsted to replace Cable Protection System on WOW04

Back to News

Trending News!