Croonwolter&dros and Bakker Sliedrecht to deliver complete electrical installation of integrated reel lay vessel for Subsea 7

Mon, 02/12/2018

Croonwolter&dros and Bakker Sliedrecht have obtained the order to engineer, manufacturer, install and commission the complete electrical installation of the new reel lay vessel that Royal IHC is building for Subsea 7.   The technologically advanced ship is intended for the installation of complex rigid flowlines, including pipe-in-pipe and electrical trace heating systems. This cost-effective technology will address the market trends towards longer tie-back developments.

Integrating all electrical systems of the most technologically advanced vessel

Bakker Sliedrecht and Croonwolter&dros will integrate all electrical installations of the most technologically advanced vessel to date. Key elements of the scope are:

  • 3 x Main switchboard 6,6 KV
  • 3 x Auxiliary switchboards 440 V
  • 7 x Water-cooled electrical drive systems for thrusters
  • 3 x Motors for Azimuth thrusters 3.200 kW
  • 2 x Motors for retractable Azimuth thrusters 2,400 kW
  • 2 x Motors for bow thrusters 2,200 kW
  • Dynamic positioning design according Lloyds AAA requirements (DP3)
  • Alarm, monitoring, and control systems
  • Navigation and communication equipment
  • Main power supply for all mission equipment
  • Complete lighting installation
  • Complete cable installation and connection

Impression of the reel lay vessel

Delivery in 2020

Delivery of the vessel is scheduled for the first half 2020. To ensure timely delivery, the project team of Croonwolter&dros and Bakker is working on-site at the shipyard of Royal IHC in the Netherlands to ensure great collaboration between all key suppliers.

Successful collaboration Croonwolter&dros and Bakker Sliedrecht

The integrated reel lay vessel will be the ninth vessel for Subsea 7 that will be fitted with an electrical installation of Croonwolter&dros and Bakker Sliedrecht. These nine vessels were also designed and built by Royal IHC. Croonwolter&dros will focus on the low voltage installations, Bakker Sliedrecht will focus on the high voltage installations and drive systems.

System Integration


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