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Sunfish successfully reburies export cable at Luchterduinen Wind Farm

Saturday, October 23 2021

Wind energy – Eneco

Intertidal trencher Sunfish of Jan de Nul reburied section of the Luchterduinen OWF export cable in the Netherlands.

Jan De Nul was requested by Eneco to execute this job.  

To this purpose, Jan De Nul modified its in-house designed and fabricated intertidal trencher Sunfish and successfully reburied the nearshore section of the cable to a minimum depth of 2.5 metres below the seabed.

Due to morphological changes the export cable burial was over the last few years decreasing in depth within the nearshore section. To guarantee the cable will at all times remain sufficiently buried and thus protected, a reburial campaign was requested.

Since the section of decreased burial depth was located in the nearshore zone, it was not accessible with typical offshore trenching vehicles nor could it be easily accessed from the beach.

Jan De Nul offered Eneco the solution by mobilizing its intertidal trencher Sunfish.

Specifically for this project, the Sunfish was modified to a suitable post-lay jet-trenching vehicle with 2 water pumps delivering each 1250 m³/hr jet water and 3.5 m long jet swords.

The Sunfish successfully lowered the nearshore part of the cable working up to 1 kilometre offshore and a water depth of 8.5 metres.

Ernest Diepstraten, Project Manager at Eneco: “Eneco greatly appreciated working together with Jan De Nul constructively in delivering this project in time and in budget. We are pleased that, thanks to the work of Jan De Nul Group, the cable to our Eneco Luchterduinen wind farm is buried deep enough again so that the wind farm can continue to supply power to our customers.”

Related posts:

  1. Successful installation of Formosa 2 export cables
  2. Neptune Energy announces Eneco as partner on hydrogen pilot
  3. Jan De Nul signs third contract with Dogger Bank Wind Farm
  4. Vineyard selects Jan De Nul for inter-array cable supply and installation

Filed Under: Eneco, Export cable, International News, Jan de Nul, Luchterduinen Tagged With: Eneco, Export Cable, Jan de Nul, luchterduinen


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