The innovative 28 MW offshore wind farm, located in the waters of north-western Denmark, is fully operational and producing energy for Nissum Bredning Vindmøllelaug and Jysk Energi customers since the beginning of 2018. The project, which uses the first offshore wind turbines manufactured in Direct Drive series SWT-7.0-154, is an example of Siemens Gamesa’s commitment to innovation and cost reduction. Turbines and other technological advances have met expectations and are now in preparation for commercial deployment.
“Nissum Bredning Vind is a small capacity project, especially when compared to other offshore wind projects, but it is extremely relevant in terms of innovation: we have tested and validated several new technologies, from a 66 kV transmission system, passing for Jacket-type foundations with concrete transition pieces, up to a cable-in-tube installation, “says Andreas Nauen, Offshore CEO at Siemens Gamesa Renewable Energy (SGRE). “All these innovations share the common goal of reducing the LCoE of offshore wind energy, and successfully completing this project demonstrates that they are capable of doing so, even being available for commercial deployment.”
Jacket-type foundations, 66 kV transmission systems, the installation of cable in tube, concrete transition pieces or the Slender Tower concept have met expectations.
Some of the elements installed in Nissum Bredning Vind allow to reduce costs up to 30% compared to traditional elements. The innovative cable-in-tube installation, in which standard marine cables are installed in plastic pipes from the mainland to the park and between the turbines, reduces costs compared to the use of offshore cables. Gravity Jacket foundations provide, at normal water depths, an anchorage to the seabed more profitable compared to classical foundations. In addition, the transition piece of concrete can be manufactured with a cost up to 30% lower than that of a steel transition piece. For its part, the 66 kV system reduces transmission losses, providing the customer with greater energy production – and therefore higher revenues – from each wind turbine.
“At Siemens Gamesa we have been the leaders in the offshore wind industry for many years, our ambition is to continue being so, to test new technologies in projects like Nissum Bredning Vind helps us to stay at the forefront of technology, boosting our company and the entire industry. towards the future, “concludes Nauen.