The first turbine of the Trianel wind farm Borkum has been installed

Tuesday, 30 July, 2013 - 09:45

This weekend, the first of 40 wind turbines of the Trianel wind farm Borkum, was installed just off of the coast of Germany. Two more Areva M5000 turbines will be fully installed by the end of the week.

"We are getting closer and closer to the finish line. If all goes well, we will be feeding electricity into the grid by the fall of this year with the turbines that have been installed up till then and will begin commercial operation before the end of the year," said Klaus Horstick, Managing Director of Trianel Windkraftwerk Borkum GmbH & Co. KG.

The special vessel Adventure, which belongs to the British company MPI Offshore, was chartered for the construction of the 148-meter-high wind turbines with a capacity of 5 MW each. The heavy transport vessel with a length of about 140 m has enough space to carry the components for three complete wind turbines per trip. A week before, the Adventure had already reached the construction site and begun preparations for installation. In the coming months, the installation vessel will continuously travel back and forth between the base port in Eemshaven and the construction site close to Borkum. The construction work will take about half a year for all 40 turbines.


Video MPI Adventure


The grid connection to DolWin1, for which the grid operator TenneT is responsible, is planned for the 4th quarter. The offshore converter platform DolWin alpha, which is necessary for this, is scheduled to be installed during the summer months. "When the grid connection is established, the turbines will no longer need to be supplied with power from diesel generators and we can begin test operation of the wind farm," says Horstick.

Video DolWin alpha

Due to repeated delays of the grid connection, completion of the wind farm is already about a year behind the initial schedule. In order to cover a portion of the financial losses caused by this, both the utility companies participating in the project as well as Trianel will make use of the liability regime for a delayed grid connection, which came into effect on 1 January 2013. The terms provide for 90% of lost revenue for feeding electricity into the grid to be compensated by TenneT. The compensation payments for Trianel wind farm Borkum are in the mid double-digit million range.

A total of 33 public utilities and communal energy suppliers from Germany, the Netherlands, Austria and Switzerland have stakes in the project.  

Katharina Garus

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