ZTT instals cables for the Kaskasi II wind farm

The Nantong-based, ZTT submarine cable & system company completed the cable load out and installation for the Kaskasi II wind farm project. The wind farm is in the North Sea, approximately 35 kilometres off the coast of Heligoland, Germany. It is being developed by the multinational energy company RWE, headquartered in Essen.

The 342MW offshore wind farm is expected to power 400,000 homes a year upon its commissioning. It is meant to support Germany’s goal of achieving 20GW of offshore wind energy capacity by 2030. The wind farm’s three-phase electric power connection will be installed in the North Sea Cluster 4.

After being generated, the electricity will be transported to the HelWin beta high voltage direct current (HVDC) sea station, an HVDC link built to transmit offshore wind power to the power grid of the mainland, by two alternating currents (AC) subsea cables.

Subsea7 was contracted for work in 2020, the scope of which includes the transport and installation of the offshore substation foundation, 38 wind turbine monopile foundations and 52 kilometres of inner array grid cables. Wagenborg Towage also delivered project cargo for the wind farm in January. The 1,400-tonne offshore substation topside was placed onto the monopile foundation by RWE in March.