Facts about Kriegers Flak

Denmark’s largest offshore wind farm
Official handling: Start June 2014                                                                      Tender procedure for large plant sections: Autumn 2014 - 2016
Contracting: Spring 2015 - 2016
Commissioning: 31st December 2018

 

The Plant at Sea

The grid connection of the offshore wind farm at Kriegers Flak will at sea consist of two transformer platforms and submarine cables.

Offshore transformer platforms
In order to collect the electricity from the 600 MW offshore wind turbines, two transformer platforms must be erected. Their function is to collect the electricity from the offshore wind turbines and increase the electric voltage from the offshore wind turbines to 220 kilovolts. The platforms are placed approx. 11 km from each other. This is due to the fact that in the offshore wind turbine area there is an area for raw material extraction where wind turbines cannot be placed. Therefore, 200 MW offshore wind turbines are placed at the western side of the raw material area and 400 MW at the eastern side.

Each platform will match the size of the transformer platform to Anholt Offshore Wind Farm and will be built on a foundation of a type similar to the Anholt platform. (Source. energinet.dk)

 

The Plant, Onshore

Onshore, a total of appr0x. 100 km cables must be installed, a new cable substation must be built and existing substations must be expanded.

Onshore cables between Rødvig and Bjæverskov
From Rødvig to Bjæverskov two parallel 220-kilovolt land-cable systems will be installed. An onshore cable system consists of three conductors, laid next to each other in a cable chute.

Conversion of the substations in Bjæverskov, Ishøj and Hovegård
To receive the power from the offshore wind turbines on Kriegers Flak and transport it into the existing 400-kilovolt grid it is necessary to convert the substations in Bjæverskov, Ishøj and Hovegård. New electrical components will be installed which can increase the voltage from the cables’ 220-kilovolt to the grid’s 400-kilovolt. (Source: energinet.dk)