Offshore Windmill Installation Vessel

Installation of first telescopic leg crane:

Last week, the boom for the first offshore telescopic leg crane has successfully been installed onto the slewing platform onboard the SC-14000XL at Japan Marine United Corporation.The 2500t offshore heavy lift crane is designed, manufactured and commissioned by the heavy lift group of NOV’s subsidiary GustoMSC and installed on the SC-14000XL, Shimizu’s wind installation jack-up vessel. The GustoMSC designed vessel will be the largest self-elevating platform for offshore wind installation in Japan and capable of installing next generation wind turbines.

Source : ocean-energyresources


One meter higher than the Eiffel Tower. That’s how high Jan de Nul’s brand new offshore jack-up installation vessel VOLTAIRE can reach. And that’s necessary: the vessel is designed to install the offshore wind turbines of the future, with turbines over 270 metres high and blades 120 metres long. Size matters! The VOLTAIRE is specifically designed to transport, hoist and install offshore wind turbines, transition pieces and foundations. For these lifting works, the vessel is equipped with a main crane of more than 3,000 tonnes, a giant that has just been installed on board at the shipyard in China.
With a crane house weighing 1800 tonnes, a boom length of 140 metres and weighing 800 tonnes, this is the largest Leg Encircling Crane ever built. The crane will use a Universal Quick Connector (UQC) to pick loads quickly and completely without manual handling, i.e. fully automated. A big step forward in safer working! The legs enabling the VOLTAIRE to lift itself above the water surface, are also being mounted on board. The first part of the legs were installed just before the launching at the end of January. We are now gradually increasing the height until they reach their full 131.5 metres.

With both feet in the middle of the energy transition
With these unprecedented dimensions and possibilities, the Voltaire is an important asset for the future of the renewable energy sector. That future revolves more and more around a global energy transition and a minimal impact on the climate. That is why Jan De Nul is equipping its new generation vessels with a double exhaust gas filter system that removes up to 99% of nanoparticles from emissions. An Ultra-Low Emission vessel, in other words!
Source: Maasmond Newsclippings

Remember her??:

DEME’s crane vessel ORION arriving Vlissingen April 21st after a long wait in Rostock. Almost ready for her first task.
Photo: René van Quekelberghe (c)

At the Keppel Shipyard in Singapore two sheerlegs of Asian lift lifted the new Huisman built crane boom from the SEAWAY OSPREY and installed the boom onboard the BOLD TERN

Offshore wind plans driving investment in installation vessels: driving-investment-installation-vessels_20220425.html

Source: Journal of Commerce

JDN’s VOLE AU VENT building the first French offshore Wind Farm between thunder storms. Seen from the bridge.
Photo: Remy Fleury ©

Loaded and ready for action:

IMO 9621704, WIND OSPREY in the Prinses Ariane Harbour (Maasvlakte 2)
Photo; Dirk Jan Habig MSc BE ©

DEME Jack up WTIV “INNOVATION” moored at the SIF Foundations B.V. Yard Maasvlakte 2.
Photo: Gerard Maijntz OCM / OIM Offshore Maritime Consultancy

What a week it has been for the DEME Offshore team, crews on board of our installation vessels and the many partner companies involved in our current offshore wind projects! Above seen the ORION transporting a set of XXL foundations for Parkwind’s Arcadis Ost 1 offshore wind farm in Germany. Installation works were completed last weekend:

Just after installing the last foundation at Arcadis Ost 1, DEME Offshore has achieved yet another significant milestone. The first foundation was installed at the Dogger Bank offshore wind farm in the UK with jack-up vessel ‘INNOVATION. The foundations, weighing on average 1,057 tonnes, are huge but also, they are technically complex to install. We are very proud to be supporting the construction of the world’s largest offshore wind farm with foundation installation and later in the programme as installer of the inter-array cables:

CADELER`s Windfarm Installation Vessel WIND ORCA preparing to depart PORT of NIGG for the SEAGREEN OWF with Five VESTAS V164-10.0 MW TURBINES.
Photo: David Meek (c)

The MPI RESOLUTION inbound passing the Hoek van Holland breakwaters Photo : Willem Holtkamp ©

Thar’s size over them grippers:

The BOKALIFT 2 in drydock at Damen Verolme in Rotterdam Botlek with clearly visible the recently installed Huisman Schiedam built gripper

One more Monopile Installation Vessel designed by Ulstein Design & Solutions:

The BOKALIFT 2 during tests at the Dutch coastal waters before heading for USA

Source: Bokalift 2 upgrade to accommodate US wind farm monopile installations | Offshore (

Another view of the BOKALIFT 2 during tests before heading for the USA:

BOKALIFT 2 during trails at Rotterdam Maasvlakte
Photo: Flying Focus Aerial Photography ©

After successfully completing its mission to install XXL monopiles along the east coast of the United States, the impressive crane vessel, Bokalift 2, has made its triumphant return to the Netherlands:

Photo : Jan Plug ©

Offshore wind farm installation vessel "SEAJACKS SCYLLA"berthed in Cherbourg and presently participating in the building of the Saint-Brieuc wind farm off Brittany coast. Vessel is outfitted with 105-metre-long legs that can install components in water depths of up to 65m, She has a useable deck space in excess of 5000 m² and is fitted with a 1500 t leg-encircling crane. Accomodation for 130 persons. Photo: Michel Leparquier ©