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2010 Volume 1 Issue 3
 
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[BELGIUM - Major Wind Farm Makes Progress . . .cont]

 

A jack-up barge installs the first of the wind turbines.Belwind monopiles installed

Ballast Nedam’s heavy lift vessel Svanen was commissioned by Van Oord to drive 56 steel piles for the foundations. In February 2010 Van Oord installed the last of 56 monopiles.

Each monopile is 5 m diameter, weighs between 300 and 500 tonne and is 50 to 70 m in length. They were transported from the fabricators by coasters to the strorage site in Zeebrugge, Belgium. In addition, there were 56 transition pieces, which were manufactured in Aalborg, Denmark, and also transported to Zeebrugge, Belgium.

Each monopile is 5 m diameter, weighs between 300 and 500 tonne and is 50 to 70 mBy mid-February, Van Oord had successfully installed 50 of the transition pieces using the self -elevating jack-up platform, JB-114, equipped with a Favco PC 300 HD offshore crane.

The crane has a capacity of 280 tonne at 22 m. Van Oord finalized the installation works at the beginning of March 2010.

The installation of the 55 turbines started in the second half of March 2010 by a jack-up platform. The wind turbine generators are being erected by Vestas.

The 52 km inter-array cable laying work is planned to start in April 2010, and will be executed by the 1,082 gross tonnage, Van Oord cable laying vessel, HAM 601. A supply barge will be used to bury the cable.

In the spring and summer of 2010 the export cable installation, scour dumping and installation of the Offshore High Voltage Stations will be in progress.

With the installation of the 56 monopiles completed, Van Oord began installing the last of the 56 transition pieces (TPs). One of these transition pieces is for the Offshore High Voltage Station.With the installation of the 56 monopiles completed, Van Oord began installing the last of the 56 transition pieces (TPs).

One of these transition pieces is for the Offshore High Voltage Station.

Each transition piece weighs 160 tonne and is 25 m long. The foundation of each wind-turbine consists of a monopile and a TP. Total weight is 410 - 660 tonne in total and is between 65 to 90 m long. With these in place, work began installing the turbines.

By the end of March, Van Oord began the transport and installation of the 55 wind generator turbines of 3 MW each (165 MW in total) and it did not take long for the first turbine to be successfully installed.

This first V90 Vestas turbine was positioned using the jack-up platform, JB 114, which departed from Zeebrugge to one of the most difficult locations on site.

By the end of March, Van Oord began the transport and installation of the 55 wind generator turbines of 3 MW each (165 MW in total) and it did not take long for the first turbine to be successfully installed. Each turbine has three, 45 m long, blades mounted to the nacelle located on top of the tower with a height of approximately 73 m from sea level. Completion of the installation of 55 turbines is expected at the end of September 2010, according to programme.

Van Oord

 
 

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