Ostwind 2
OperationalOffshore GridDE750 MW220 kV90 km2024
Basic information
8 fieldsAlso Known As
Ostwind2 · Ostwind 2 grid connection · OST-2-1 · OST-2-2 · OST-2-3
Status
operational
Capacity
750 MW
Owners
Project Company
Type
offshore grid
Transmission Model
TSO Build & Own
Website
Supply Chain (3)
Project Timeline (11)
2024Commercial Operations Full Power
Ostwind 2 grid connection system commissioned and operational.
10 Jul 2024System Testing
Around early July 2024, 50Hertz completed a four‑week trial operation of the third and final 220 kV AC cable system for the Ostwind 2 offshore grid connection off the coast of Rügen. This trial operation tested the last of three export cable systems linking the Arcadis Ost 1 and Baltic Eagle offshore wind farms to the onshore grid at Lubmin, enabling the Ostwind 2 connection to move into continuous operation nearly three months earlier than planned and ultimately integrate up to 750 MW into the 50Hertz high‑voltage network.
2022Cable Installation Start
Third Ostwind 2 cable system (OST-2-3, connecting Baltic Eagle) installation commenced 2022. Commissioned April 2024 after trial operation completing July 2024.
10 Dec 2021Cable Installation Complete
By December 2021, the second of the three 220 kV export cable systems for the Ostwind 2 offshore grid connection in the German Baltic Sea had been successfully laid on the seabed, bringing the grid connection of Iberdrola’s Baltic Eagle wind farm another step closer and fulfilling 50Hertz’s commitment to install two cable systems within five years.
Sept 2021Cable Installation Complete
By September 2021, 50Hertz had completed the laying of the first of three Ostwind 2 sea/export cable systems, establishing the grid connection from the offshore route to the Arcadis Ost 1 wind farm as part of the 220 kV AC grid connection to Lubmin.
Mar 2021Cable Installation Start
First Ostwind 2 cable section laid by March 2021 by Boskalis/NKT consortium. First cable system completed September 2021. Contract awarded November 2018.
2020Manufacturing Update
NKT began cable production at Karlskrona (Sweden) and Cologne (Germany) at beginning of 2020 for approximately 200 km of 220 kV three-core submarine export cables.
2019Uxo Survey StartStale
Royal Boskalis Westminster, contracted by 50Hertz for the Ostwind 2 offshore grid connection, planned to commence unexploded ordnance (UXO) survey activities in 2019 as part of a wider export cable installation project that will link the Arcadis Ost 1 and Baltic Eagle wind farms to the Lubmin onshore substation.
2019Geophysical Survey StartStale
As part of Boskalis and NKT’s export cable contract for Ostwind 2, geophysical seabed and water-depth surveys were scheduled to start in 2019 to support route engineering and installation of approximately 270 km of 220 kV export cables between the Arcadis Ost 1 and Baltic Eagle offshore wind farms and the Lubmin substation.
26 Nov 2018Cable Supplier Selected
50Hertz awarded NKT a contract to supply the Ostwind 2 export cable system, under which NKT will provide approximately 270 km of 220 kV high‑voltage AC XLPE offshore export cable and 8 km of 220 kV AC XLPE onshore cable to connect the planned Arcadis Ost 1 and Baltic Eagle wind farms to the onshore substation in Lubmin, Germany; the order, valued at around EUR 300 million, is NKT’s largest ever AC high‑voltage export cable order and involves manufacturing at its Karlskrona (Sweden) and Cologne (Germany) plants with production scheduled to start in 2020.