Ostwind 2

Ostwind 2 is the project to connect the Baltic Sea wind farms Arcadis Ost 1 and Baltic Eagle to the German extra-high voltage transmission grid. Arcadis Ost 1, the wind farm of the Belgian company Parkwind, is located in the cluster Westlich Arkonasee. Baltic Eagle, the project of the Spanish energy company Iberdrola, is located in the cluster Arkonasee. Together, the two wind farms are to generate an output of approximately 725 megawatts (MW). 50Hertz plans to build three submarine cable systems to deliver this power. These 220 kV AC voltage cables can transmit a total of 750 MW of power. The connection to the German extra-high voltage transmission network takes place at the grid connection point in the substation Lubmin (Mecklenburg-Vorpommern).

The clusters Arkonasee and Westlich Arkonasee have been designated as special areas of wind power for the construction of wind turbines. Together they cover an area of approx. 106 square kilometres and are located in the German Exclusive Economic Zone (Arkonasee) as well as in the 12-mile zone (Westlich Arkonasee) of the Baltic Sea. To the nearest coast of Ruegen it is about 20 kilometres (Arcadis Ost 1) and 30 kilometres (Baltic Eagle), to Lubmin on Greifswalder Bodden about 90 kilometres.

The grid connection of the Arcadis Ost 1 wind farm was completed in late 2023. The grid connection of the Baltic Eagle wind farm was commissioned in April 2024 and has been ready to inject electricity since then.

Grid connection
Location of the Clusters Westlich Arkonasee /Arkonasee	approx. 20 km / 30 km to north-east of Rügen
Route length (total)	approx. 90 km
Cable length off/onshore	approx. 95 km / approx. 3 km
Onshore connection point	Lubmin substation
Cable operator	50Hertz Transmission GmbH
Status of the approval procedures	Onshore – approved
	Offshore 12 nautical mile zone - approved planning approval procedure for the sea route in coastal waters in accordance with the German Energy Industry Act (EnWG) in conjunction with Mecklenburg-Western Pomerania State Administrative Procedure Act (VwVfG M-V)
	Offshore EEZ + border corridor - approved
Expected completion deadline under § 17 section 2 sentence 1 of the EnWG	Project as designated in O-GDP	Designation	Date
	OST-2-1	AC grid connection system OWF Arcadis Ost 1	30/09/2023
	OST-2-2	AC grid connection system OWF Baltic Eagle	31/12/2023
	OST-2-3	AC grid connection system OWF Baltic Eagle	30/09/2024


Offshore wind farms (OWF)
Operator of OWF Arcadis Ost 1		Parkwind
Operator of OWF Baltic Eagle		Baltic Eagle GmbH