The Siemens Gamesa (SGRE) 28MW offshore wind power project located in the waters of North-western Denmark is now fully operational and utilises the first serial-manufactured SWT-7.0-154 direct drive offshore wind turbines. According to SGRE cost reductions of up to 30% compared to traditional elements can be provided by some of the elements installed at Nissum Bredning Vind.The cable-in-pipe installation, where standard onshore cables are installed in plastic pipes from the mainland as well as between the turbines, lowers capital expenditures compared to employing offshore cables. Gravity jacket foundations provide a soil interface at normal water depths which can be made more cost-efficient versus classic jacket foundations. Furthermore, the concrete transition piece can be made at a cost level of up to 30% lower than a steel transition piece. Also, the 66 kV transmission system reduces transmission losses, providing the customer with a higher energy output. The turbines and further technological advancements have fulfilled expectations and are now in preparation to become available for commercial deployment.
