First jacket contract - ST³ Offshore

First jacket contract


ST³ Offshore starts on offshore wind suction bucket jacket project for Borkum Riffgrund 2.

Following on from the execution of DONG’s Race Bank TP’s, DONG Energy has now awarded ST³ Offshore with a contract to fabricate 20 offshore wind suction bucket jackets, for the Borkum Riffgrund 2 OWF.

The Borkum Riffgrund 2 will be located approximately 34 km North of the island Borkum in Germany, 54km off the coast of Lower Saxony, next to one of DONG Energy’s other wind farms, Borkum Riffgrund 1.
The Borkum Riffgrund 2 Offshore Windfarm has a target power generation capacity of up to 450 MW using turbines mounted on a total of 56 steel foundations where 20 foundations are jackets and the remaining 36 foundations are Monopiles. It will feature the largest wind turbines in German waters: 56 units of MHI Vestas’ 8 MW wind turbines with rotor spans of 164 meters. The offshore wind farm will supply CO2-free power corresponding to the annual electricity consumption of approximately 460,000 German households.
ST³ Offshore has already started fabrication on the Borkum Riffgrund 2 project as preparations of nodes using the latest robotic welding techniques and equipment have been started. The works include final assembled jackets, coated and complete with secondary steel, electrical equipment, TP and suction buckets. ST³ is working closely with steel partner Salzgitter for the supply of steel plates and standard pipes to produce a value for money jacket foundation.


Source - Dong Energy. Project Borkum Riffgrund 1. Suction Bucket Jacket before the installation.