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Trenching Support Vessel Argo 5

The Egypt – Saudi Arabia (KSA) Electricity Interconnection

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The Egypt–KSA project establishes a critical HVDC interconnection between Egypt and Saudi Arabia. The project features a ±500kV, 3000 MW HVDC transmission system spanning the northern part of the Red Sea’s Gulf of Aqaba. It comprises 23 kilometers of submarine cables and 1,300 kilometers of land cables, connecting Cairo’s Badr Substation to Madinah East Substation, with a tap at Tabuk. 

ASSO undertook the pre-lay trenching operations along approximately 28 kilometers of the submarine route. These operations were conducted in water depths ranging from 10 to 130 meters, navigating complex seabed conditions such as fine sands, cemented sands, and zones with rocks and boulders. Through the deployment of advanced equipment and extensive expertise, ASSO ensured precise trenching to enable the secure installation and long-term protection of the submarine cables. 

The underwater scope includes two MVDC XLPE return cables, six HVDC Mass Impregnated (MI) cables, and two fiber optic telecommunication cables. Horizontal Directional Drilling (HDD) is employed on both sides of the crossing to minimize environmental impact, avoiding sensitive coral reef areas. By accommodating the Gulf of Aqaba’s distinctive bathymetric features, ASSO’s contribution was crucial in guaranteeing the project’s technical success and compliance with environmental best practices. 

Service Provided: 

Pre-Lay Trenching operations

PROJECT SPECIFICATIONS

  • Owner
    EEHC / SEC
  • Contractor
    Prysmian Powerlink SrL
  • Year
    2024
  • Cable Type
    fo, hvdc
  • Cable Diameter
    121mm
  • Cable Weight
    45kg/m
  • Trenching Length & Burial Depth
    28km
  • Max Water Depth
    130m

SERVICES PROVIDED

Some of the services we provided for The Egypt – Saudi Arabia (KSA) Electricity Interconnection 

VESSELS USED

  • Argo

    DP II – Trenching Support Vessel The Argo is a DP-2 Trenching Support Vessel built for worldwide operations, …

    Argo Trenching Support Vessels

EQUIPMENT USED

  • AssoTrencher IV Mk9

    AssoTrencher IV Mk9 sits at the top of the mechanical trenchers range as it forms the latest version …

    AssoTrencher IV Mk9 Deep Water Trenchers, Subsea Burial Equipment

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