Transport & Installation Rentel Offshore Substation

Market: Renewables and Environmental 
Scope of Work: Transport & Installation Rentel Offshore Substation
Location: North Sea, Belgium
Client: Dredging International NV
Period: January 2018
HLV: Rambiz

The Rentel Offshore Substation is installed in the North Sea, on the planned territory located in the Belgian Exclusive Economic Zone (EEZ).
In total 42 wind turbines of type Siemens SWT-7.0-154 with a power of 7.0 MW each shall be erected.
The Rentel OSS will in the first phase be connected onto the ELIA substation Stevin in Zeebrugge. In the second stage an Offshore Switchyard (OSY) will be installed and the Rentel OSS will be connected onto the OSY via the 220kV and 33kV Coupling Cable.
Rentel has awarded STX for the supply as an EPC/I Contractor of the fully empowered OSS consisting of the respective complete foundation and topside with the corresponding electrical and non-electrical equipment.
The design lifetime of the OSS will be 30 years.

Scaldis Scope

In January 2018 Scaldis successfully completed the transport and installation of the Rentel Offshore Substation.
The Rentel Offshore Substation was built by STX in Saint Nazaire, France and arrived in Zeebrugge on 20 January.
On 25th of January, both Rambiz and barge left the port of Zeebruges in order to install the Rentel Offshore Substation.
Rambiz entered the field late afternoon and proceeded with anchoring.
The next morning, the transport barge was moored to the Rambiz bow.
The rigging stored on Rambiz deck was lifted above the Rentel Offshore Substation, 4 Scaldis riggers were transferred to the Rentel Offshore Substation to connect the rigging to the padeyes on the Substation.
After all rigging was connected, the seafastening was cut and topside was lifted free of her grillages.
Rambiz shifted towards the foundation and the Offshore Substation was installed on the foundation.
Scaldis riggers were transferred by manbasket to the topdeck of the Offshore Substation to disconnect rigging.
Rigging was retrieved to Rambiz deck and Rambiz anchors were recovered and sailed back to the port of Vlissingen.