Ostwind 2 is the 50Hertz Transmission grid connection system that links two Baltic Sea offshore wind farms—Arcadis Ost 1 (Parkwind) and Baltic Eagle (Iberdrola)—to the German extra-high-voltage network at the Lubmin substation. The connection is implemented as three 220 kV AC submarine export cable systems (designated OST-2-1, OST-2-2 and OST-2-3)...
Approx. €550 million for the export/onshore cable scope (NKT supply ≈€300m; Boskalis installation in excess of €250m). This represents the cable supply+installation contract value, not the full TSO (50Hertz) grid-connection...
1 Cost inflated in local currency then converted to euros (where applicable).
50Hertz and contractors performed standard seabed preparation and burial measures for the Ostwind 2 export systems: subsea sections are laid on the seabed and then buried where possible using ploughing/trenching...
Fibre optic:
Project documentation and contractor descriptions indicate the export cable system route includes fibre optic provisions for messaging/telemetry and communications (light‑wave/optical fibres drawn into protection ducts or accommodated within cable systems...
Burial depth varies along the route and is determined by seabed geology and water depth; 50Hertz and project contractors used a mix of survey-led seabed preparation, ploughing/trenching and targeted burial...
Burial practices vary along the route and were determined by seabed surveys and local geology. 50Hertz and contractors performed seabed preparation, pre-lay surveys and used trenching/ploughing where appropriate; sections were...