Danish Demo Offshore Wind Farm Gets DNV GL Certificate

DNV GL has awarded Siemens Gamesa the project certificate for its Nissum Bredning offshore wind farm located in Thyborøn, in waters of north-western Denmark.

The certification was carried out according to the Danish Executive Order No.73 (BEK 73) and covers all stages of the project development from site conditions assessment over design evaluation to commissioning.

The Nissum Bredning wind farm comprises four Siemens Gamesa turbines with an installed capacity of 28MW. It has a specific focus on the integrating of new technological innovations, including a 66kV transmission system to jacket foundations with concrete transition pieces to a cable-in-pipe installation to reduce the Levelized Cost of Energy of the project.

Due to the location in Thyborøn Kanal, the offshore wind farm can be affected by sea ice during the winter months, which made the certification process particularly challenging, DNV GL said.

“The use of new technologies and the environmental conditions of the project required an experienced certification approach,” said Karsten Albers, Nissum Bredning project certification manager at Siemens Gamesa Renewable Energy.

Through cooperation between Siemens Gamesa and DNV GL, the project certificate demonstrates that sea ice will have no significant impact on the lifetime of the turbines of the wind farm, despite the unique maritime conditions, according to DNV GL.

“The extraordinary location of the Nissum Bredning offshore wind power park provided a unique challenge to our team of certification experts, both from a technical and a logistical perspective. Having worked in close co-operation with Siemens Gamesa’s team in the past enabled us to jointly realize this project certification,” said Kim Mørk, Executive Vice President Renewables Certification at DNV GL.

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