Italy-headquartered Prysmian has concluded the set up of submarine and land energy cables to attach the 450 MW Neart na Gaoithe offshore wind farm to the Scottish mainland energy grid.
The offshore wind challenge is now within the testing and commissioning section and the system is scheduled to go dwell throughout 2024.
Prysmian designed, provided, and put in two HVAC 220 kV three-core extruded export submarine cables with single-wire armoring which attain land at Thorntonloch seaside in East Lothian.
The corporate additionally offered two 220 kV extruded land cable circuits that hyperlink the landfall space to the substation at Crystal Rig and two 400 kV extruded land cable circuits to hyperlink the Crystal Rig substation to a Scottish Energy substation.
“Prysmian managed advanced scopes such because the sea-land cable touchdown, the laying and burial of the cables, the pulling of the cables onto the offshore platform and the termination of the cables all inside its scope. This required main effort spent on interfacing with different packages engaged on the challenge,” stated Lubna Gemey, Undertaking Supervisor for the offshore actions.
The submarine cables had been manufactured at Prysmian’s heart of excellence in Pikkala, Finland, whereas the land cables had been produced in Gron, France.
The marine cable laying work was carried out by the corporate’s Cable Enterprise vessel, whereas the burial marketing campaign was carried out by the Normand Pacific.
The Cable Enterprise additionally managed the pulling of the cables on the platform.
“We’re proud to have delivered the challenge matching the required high quality however most of all reaching the heaviest attainable well being and security outcomes, with 0 LTI (misplaced time damage) registered in over 600,000 labored manhours,” stated Massimo Galleta, Undertaking Director.
Among the many challenges Prysmian encountered in the course of the challenge was the necessity to coordinate with many different corporations concerned, the agency stated.
The wind generators for Neart na Gaoithe are produced by Siemens Gamesa, the foundations are by Saipem, and the substations are provided by GE.
“On the offshore platforms, we had been working in a confined area with the opposite contractors, ensuring that issues had been going easily, additionally contemplating the simultaneous operations that had been being carried out. This required robust planning to collaborate effectively and meet time necessities, a great angle, and shut cooperation,” stated Gemey.
“One other technical problem confronted by Prysmian in the course of the challenge was associated to the sea-land horizontal directional drilling (HDD), a 600 meter pipe put in on the sea-land transition space that allowed the cable to move from offshore to the land,” stated Galleta.
“Prysmian employed a brand new methodology for putting in the pipe, which was pushed from the shore as an alternative of being pulled from offshore, with a view to restrict the engagement of the offshore unfold at all times subjected to climate constraints.“
Cable burial actions on the inter-array routes throughout the Neart na Gaoithe offshore wind farm had been performed in March 2024, following the completion of cable set up works in January.
Situated 15 kilometres off the coast of Fife in Scotland, the 450 MW Neart na Gaoithe offshore wind farm will characteristic 54 Siemens Gamesa 8 MW wind generators.
The challenge, owned by the three way partnership between EDF Renewables and ESB, is predicted to provide its first energy this 12 months.
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