50Hertz, Skyborn Ink Deal for Gennaker Offshore Converter Platforms

German transmission system operator 50Hertz and offshore wind developer Skyborn Renewables have signed a platform cooperation agreement that clears the way for the commissioning of the Gennaker offshore wind farm in the German Baltic Sea.

The agreement establishes the legal and regulatory framework for OSS Zingst and OSS Darß, two offshore platforms that will jointly serve as part of both the wind farm and the grid connection system. The deal resolves uncertainties linked to connecting offshore wind farms located in German territorial waters and paves the way for full commissioning by mid-2028.

The two platforms will have a combined grid connection capacity of up to 927 MW and will collect electricity generated by Gennaker’s 63 turbines before transforming it to 220-kilovolt high voltage.

Power will then be transmitted via three subsea and onshore cable systems forming the OST-6-1 grid connection to the Gnewitz substation, located around 70 to 90 kilometers away.

The platforms are currently under construction at shipyards in the Netherlands. Shared platform use, already proven in the Baltic Sea, is intended to reduce costs, minimize the