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Kriegers Flak to kick off

By: Bridget Randall-Smith 08/05/2020 4C Offshore

General Vessels Windfarms

Offshore construction at the Kriegers Flak offshore wind farm is due to start next week with installation of the monopile foundations. Van Oord's 8,000-tonne heavy lift installation vessel Svanen is due to arrive on site on 11th May.

Vattenfall secured rights to the 604.8 MW project in November 2016, with a winning bid of EUR 49.9 per MWh. The Danish Energy Agency recently approved the retail project design and granted the final EIA permit and Construction License to Vattenfall in February 2020.

Located 15-40 km offshore in the Danish Baltic Sea, the Kriegers Flak wind farm is set to feature 72 Siemens Gamesa SG 8.0-167 DD turbines, each with a rotor diameter of 167 metres and tip height of 188 metres, and monopile foundations.

Rostock-based EEW finalized production of the foundations in late 2019. The monopiles weigh 600-800t and are up to 65.6m long. Aalborg-based Bladt Industries is manufacturing the transition pieces for the 72 foundations with work scheduled to finish this Summer. The components will be transported by barges to the wind farm site for installation.

The project is aiming to complete installation works for foundations and cables in 2020, and for the wind turbine installation process to begin in early 2021.

In order to facilitate construction works, Vattenfall will establish temporary construction facilities in Rødvig. The Port of Rønne, as the selected port of departure for turbines, has also been expanded by 150,000 square metres. Vattenfall plan to construct an operations and maintenance building in the harbour of Klintholm to oversee the projects operational lifetime.
The project also forms part of the Kriegers Flak Combined Grid Solution which is a 170 kV High Voltage Alternating Current cable system that connects the Kriegers Flak and EnBW Baltic 2 offshore wind farms and designed to facilitate the transmission of power between Denmark and Germany.

Commissioning of the Kriegers Flak Combined Grid Solution has been challenged by travel restrictions currently imposed by the governments of Denmark, Sweden and Germany due to the coronavirus pandemic. As a result, commissioning is expected to be launched by the end of August 2020. 50Hertz and Energinet are closely monitoring the situation and are making every effort to develop alternative ways to continue the individual commissioning steps.

For more information on offshore wind farms worldwide, click here.

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Kriegers Flak to kick off

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