The erection

The erection of the turbines commenced in March 2002 and in July, the first wind turbine was put into operation. The rough weather conditions in the North Sea required a detailed planning of the project.

1 First, the foundation was placed, which is a cylindrical steel pipe with a diameter of about 4 metres. A pile driver placed on a barge, stabilized by legs, ramed the pipe approx. 25 metres into the seabed.
2 Then, the wind turbines was mounted by means of large specially built vessels with submersible legs. A crane on the vessels lifted the turbines into place.
3 The wind turbines were connected via submersible cables to the offshore transformer substation which will collect the power.
4 Via a submarine cable, the substation is connected to the onshore power transmission grid.
 

See allso the news letters for a
 description of the erection

 

Important events of the Horns Rev Project

V80/2 MW prototype turbine erected in Tjæreborg 5. December 2001
First foundation arrives at Esbjerg Harbour   13. February 2002
First fundament pile driven 30. March 2002
Eltra's transformer module placed at Horns Rev 16. April 2002
First turbine erected 7. May 2002
First cable laid in park 19. May 2002
First turbine in operation 29. July 2002
Transition piece fitted on the last foundation 3. August 2002
Last turbine erected 21. August 2002
Last cable laid between the turbines 23. August 2002
Blades damaged on V80/2 MW prototype turbine erected at Tjæreborg 4. November 2002
All the turbines in operation 11. December 2002