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21 October 2025
Jan De Nul launches its newest cable-laying vessel: the Fleeming Jenkin. The company will use it to install subsea cables for the transmission of renewable energy. The vessel has a loading capacity of 28,000 tonnes, making it the world's largest of its kind. Delivery is scheduled for the second half of 2026.
The launch took place by flooding the dry dock at the CMHI Haimen shipyard in China. The final vessel construction phase now begins, including sea trials.
Wouter Vermeersch, Director Subsea Cables Offshore Energy at Jan De Nul: "The Fleeming Jenkin combines all the cable installation expertise we have built up over the past fifteen years. The entire vessel and the technologies on board were designed by our in-house specialists. The result is a vessel that operates very efficiently, reducing both the cost price and the ecological footprint of our projects."
First assignment: 2,800 kilometres of subsea cables for TenneT's 2GW projects
Once operational, the Fleeming Jenkin will immediately start her first assignment: the 2GW Program by TenneT, the grid operator for the Netherlands and large parts of Germany. This 2GW Program introduces a new generation of offshore grid connection systems that can each transmit up to two gigawatts. This is more than double the capacity of existing connections, usually between 700 and 900 megawatts. For comparison, an average nuclear power plant typically generates between 1 and 1.6 gigawatts. Fleeming Jenkin will install export cables on four of these 2GW connections, bundling and laying four cables together. This results in a total of more than 2,800 kilometres of cable being installed over a distance of more than 700 kilometres.
Image by Jan De Nul Group.
Jan De Nul Group press release
