Siemens has completed the foundation stone for the onshore converter station in Emden/Ost in Lower Saxony, Germany for TenneT’s 900MW Borwin 3 offshore wind grid connection system.
The work at the 22,500 square metre HVDC converter station started in October and includes 20-metre auger piles.
The transformer will be brought to the site by the end of the year, with commissioning slated for late summer 2017.
The burial has also been completed of the 30km DC onshore cable from Hamswehrum near Emden to the onshore substation.
The Prysmian cable was buried in sections of 1150 metres and connected via sockets.
The first parts of the offshore cable were buried in September, the same month Drydocks World started steel cutting for the offshore platform Borwin gamma in Dubai.
Dry Docks is carrying out the work on behalf of a consortium of Siemens and Petrofac.
TenneT awarded Siemens a contract in 2014 to supply HVDC transmission technology for the grid link, with Petrofac handling construction and installation of the planned offshore platform some 130km off the German coast.
Borwin 3 is expected to be fully commissioned in the third quarter of 2019 and will connect the 500MW Hohe See and 400MW Global Tech 1 wind farms to the grid.
Image: the completed foundation stone (Siemens)
