FEATURE SPONSOR
TURBINE INSTALLATION
ARKONA PROJECT COMPLETION
Less than three weeks after laying the first block, the STX France team has laid the third and last block of the Arkona project
The project is a joint venture between E.ON and Statoil with transmission system operator 50Hz electrical offshore substation topside onto the transportation barge in the drydock of the yard in
St.Nazaire. In the meantime, the offshore works at the ARKONA windfarm site have started with the installation of the four piles of the substation jacket foundation.
One of the largest substations The substation is one of the biggest HVAC (high voltage alternating current) substations ever built - 5000 tons (4000 tons topside and 1000 tons jacket), transmitting a total of 385MW power – and will be delivered in 2018.
ON SCHEDULE The project is running according to schedule with the three blocks of the
topside now assembled on the barge which will be used for the transport offshore in spring 2018. Equipment installation and commissioning will continue until 2018 on the barge in the dry dock in
St.Nazaire.
In the meantime the jacket fabrication is in progress in a dedicated workshop in Saint-Nazaire. Last week STX, with subcontractor SHL, the first part of the offshore installation took place in the Baltic sea. SHL Heavy Lift Vessel Oleg Strashnov has installed the pile foundation for the jacket.
COLLABORATION
Due to close and trustful collaboration of all involved parties the project is in line with the schedule. A full EPCIM contract which makes of STX France one of the major European industrial
stakeholders of the Energy transition.
From the contract award in July 2015 up to the fabrication start, STX France team has carried out the design of the ARKONA electrical substation. Building of the topside and the jacket have been realised in the Offshore Energy dedicated workshop of STX’ Saint- Nazaire yard. The contract includes the transport, the installation and one year maintenance period.
KEY ACHIEVEMENT Finally, looking forward the biggest single lift for an HVAC substation so far – 4000 tons – will be carried out next spring. This will be a key achievement in the offshore wind market.
STX Europe
www.windenergynetwork.co.uk
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