Following an international tender, the electricity transmission system operator 50Hertz has awarded two major contracts for submarine and land cables in the Baltic Sea to the suppliers Hellenic Cables and Jiangsu Zhongtian Technology Submarine Cable (ZTT). The company’s supervisory board, which includes representatives of the majority shareholder Elia Group, KfW and representatives of the employee side, has given the go-ahead for the order. The cables are intended to connect the Gennaker offshore wind farm to the German extra-high voltage grid. Following the order placed a few months ago with a Dutch-Belgian shipyard consortium for the construction of two offshore substation platforms, the current cable award is another important step on the way to completing this major project.
In total, the cable award involves three 220 kV systems with a connection capacity of 927 MW, which will be routed onshore from two offshore substation platforms (OSS). In addition, a cross-connection between the offshore platforms (OSS) Zingst and Darß is planned. The two systems between the OSS-Darss and the onshore substation are to be supplied by Hellenic Cables, while the 88-kilometre cable between the OSS-Zingst and the onshore substation as well as the connecting cable between the two platforms is to be supplied and installed by ZTT.
Gennaker is to be the most powerful offshore wind farm in the German Baltic Sea yet. It is located around 15 kilometres north of the Fischland-Darß-Zingst peninsula in the coastal sea of Mecklenburg-Western Pomerania. 50Hertz is responsible for the entire grid connection project under the name Grid Connection OST-6-1. The planning approval procedure is currently being prepared at the Ministry of Economics, Infrastructure, Tourism and Labour of Mecklenburg-Western Pomerania. The public participation process for the route of the landline and for the location of a substation has already begun.
Source: 50 Hertz
