Heerema's Aegir installed DOT monopile at Eneco Amalia windpark
Heerema Marine Contractors has installed, together with its client Delft Offshore Turbine (DOT) and their subcontractor CAPE Holland, the DOT monopile at the Eneco Amalia windpark.
During the installation of the monopile a relatively new driving technology was used by CAPE Holland in combination with a new installation operation by Heerema's offshore lift vessel Aegir. The monopile was vibrated into the soil with a Vibro Lifting Tool which is a hybrid of a vibro hammer and lifting tool. Because of this no other tools were needed for picking up, upending and driving the pile to final penetration. By measuring the verticality during driving, the vessel and crane were able to control the verticality while operating in DP mode.
The installation by Heerema's Aegir was performed in floating mode on DP and with the monopile free hanging from the hook of the crane. No motion compensation frame from the vessel was used during the installation of the monopile. As a result of this operation the monopile is installed within the target box of 0.5m and has an inclination of 0.3 degrees with less required hardware.
We are pleased to announce that Heerema Marine Contractors (HMC) and AF Offshore Decom (AFOD), together known as the HAF consortium, have been awarded a contract from Marathon Decommissioning Services LLC for the Engineering, Preparation, Removal and Disposal (EPRD) services of the Brae Bravo Platform.
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This morning, Sunday September 30, Heerema’s Aegir successfully installed the DOT wind turbine on its previously installed monopile connected by a Slip Joint. Heerema Marine Contractors, part of the SJOR-consortium, decided to step into this project to present herself to the industry as an installation contractor who is also focusing on the transportation and installation of wind turbine foundations & turbines. The DOT wind turbine is located in the Eneco’s Princess Amalia Wind Park off the coast of IJmuiden, the Netherlands. The complete wind turbine was picked up in a single lift by Heerema’s lift vessel Aegir from the quay of Sif Rotterdam and transported towards its designated location. The fully assembled turbine was installed by Aegir as a floating vessel and kept in position by Dynamic Positioning (DP). The installation of the wind turbine took less than 1 hour in total, which is noticeably faster than usual installation.
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Heerema Marine Contractors (HMC) in a consortium with AF Gruppen (AFG) have received notice that Fairfield Betula Limited intends to enter into a contract for the removal and disposal of the Dunlin Alpha topside in the UK continental shelf.
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