2021-09-24
http://w3.windfair.net/wind-energy/pr/37505-van-oord-france-offshore-wind-farm-location-britanny-mw-construction-aeolus-vessel-capacity

News Release from Van Oord Dredging and Marine Contractors BV.


Upgraded Aeolus starts work on French offshore wind farm

After extensive preparations, offshore installation vessel Aeolus is starting the installation of the first of 62 jacket foundations for the Saint-Brieuc offshore wind farm project. The wind farm is located 16,3 kilometres off the coast of Brittany and has a total capacity of 496 MW. Before installing the very first pin-piles for the jacket foundation this month, the Aeolus was upgraded and an extensive spread of project-specific installation equipment was placed on deck.

Image: Van OordImage: Van Oord

Project-specific equipment and modification  

Van Oord is responsible for the transport and installation of 62 jacket foundations for the wind turbines (3 pin piles each) and the 4 foundation pin piles for the offshore substation. A total of 190 pin piles will be installed. Before the start of the operations in France, equipment was engineered, constructed and extensively tested to ensure perfect execution of the project. The Aeolus was put into service in 2014. The main crane has a lifting capacity of more than 1,600 tonnes. This makes this vessel suitable for the transport and installation of foundations and wind turbines. Its advanced jacking system with its four giant legs, each measuring 85 metres and weighing 1,280 tonnes, allow Aeolus to be jacked up and to work in waters of up to 45 metres deep.

Due to the geotechnical circumstances in the Bay of Saint-Brieuc, harsh weather conditions combined with extremely strong currents, heavy Atlantic swell and very high waves, offshore operations are possible only between March and October. To ensure that the Aeolus can be safely jacked up above sea level the lifting spuds were modified with a flex-pin construction. For the drilling operations, new hydraulic drills were engineered and built to handle all types of soil and rock conditions. A newly designed and created state-of-the-art drilling template will function as a positioning and holding-tool to ensure the precise placement of the pin-piles. Van Oord will also be deploying several other vessels on the project in the next months for the removal of boulders, installation of scour protection, transport of pin piles, etc. The installation campaign for the pin piles will be executed in 2021 and 2022. In 2022 the jackets will also be installed.

Marshalling port in Cherbourg

Van Oord will use the port of Cherbourg as the pin pile marshalling port. The pin piles, coming from Spain, will be stored in France before installation offshore. The port of Cherbourg is in the heart of the Channel and an advanced logistic and industrial hub.

Source:
Van Oord
Author:
Press Office
Link:
www.vanoord.com/...
Keywords:
Van Oord, France, offshore, wind farm, location, Britanny, MW, construction, Aeolus, vessel, capacity



Alle Meldungen Von Van Oord Dredging and Marine Contractors BV.


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