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Rotterdam Offshore Group upgrades world’s largest jack-up vessel

The world’s largest jack-up vessel Seajacks Scylla, has recently visited the Rotterdam Offshore Group (ROG) terminal in the Waalhaven, after her first successful assignment on phase 1 of the Veja Mate Offshore Windpark project.

During the vessel’s stay at the Waalhaven facility, ROG performed an upgrade on the vessels mooring system. ROG worked around the clock to complete the project within strict deadlines and to the highest quality levels required by the vessel owners and to class satisfaction.

After the upgrade, Seajacks Scylla sailed to Esbjerg where the vessel has been mobilised for the 2nd Phase of the Veja Mate offshore wind farm project which includes the turbine installation of 67 Siemens SWT-6.0-154 wind turbines at the 402MW wind farm.

Seajacks Scylla had already completed phase 1 of the project, installing 67 foundation monopiles at the site located some 95km north west of the island of Borkum in the German exclusive economic zone (EEZ). Each monopile weighs approximately 1,300 tonnes, has a diameter of 7.8m and each transition piece is over 25metres in length and weighs approximately 360 tonnes.

Seajacks Scylla, the world’s largest and most advanced wind farm installation and offshore construction vessel, was delivered by the Samsung Heavy Industries Shipyard in Geoje, Republic of Korea in 2015. The vessel has been designed to operate in the UK Round 3 offshore zones, Scottish territorial waters and the other North West European markets.

Based on the Gusto MSC NG14000X design, the ABS-classed Seajacks Scylla, has more than 8,000 tonnes of available variable deck load. Equipped with a 1,540 tonne leg-encircling crane and a usable deck space in excess of 5,000 square meters, the unit is outfitted with 105-meter legs with the ability to install components in water depths to 65m.

The rig is capable of meeting the installation needs of jumbo-monopiles, jackets, and turbines of future wind farms in deeper waters farther from shore.

Ships Montly - January 2024

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