Installation of Jacket, Piles and Topside for Borkum Riffgrund 1 Substation

Market: Renewables and Environmental
Scope of work: Installation of jacket, piles and topside for Borkum Riffgrund 1
Location: North Sea, Germany
Client: Dong Energy Wind Power A/S
Period: August 2013
HLV:  Rambiz

Dong Energy A/S awarded Scaldis the contract for transportation and installation of the Borkum Riffgrund 1 Offshore wind farm substation which is located in the south-eastern part of the North Sea approximately 20NM north of the German island of Borkum.

Scaldis transported the substation jacket, eight piles and topside by barge from Aalborg (Denmark) to the offshore site in August 2013. At the site HLV Rambiz lifted and installed the nearly 1700 tonnes jacket, placed and piled to depth the eight foundations piles, grouted the jacket sleeves and lifted the 1850 tonnes topside onto the jacket.

During the piling operations a bubble screen was used to reduce the noise. The operations were successfully and quickly completed.