Innovative Nissum Bredning Vind to go ahead
9 December 2016The contract to construct an innovative 28 MW pilot project in northern Denmark, following a tender from the Danish Energy Agency, has been won by Nissum Bredning Vindmøllelaug and Jysk Energi. The DEA intends the project as an official test bed for new technologies and integrated design. The final investment decision has now been made for the project, which includes a test programme that is confidently expected to affect the future of offshore wind technology.
The contract to construct an innovative 28 MW pilot project in northern Denmark, following a tender from the Danish Energy Agency, has been won by Nissum Bredning Vindmøllelaug and Jysk Energi. The DEA intends the project as an official test bed for new technologies and integrated design. The final investment decision has now been made for the project, which includes a test programme that is confidently expected to affect the future of offshore wind technology.
The 4x7MW direct drive WTGs are to be supplied by Siemens, along with an innovative gravity jacket foundation solution, its new 66kV voltage grid connection solution including a new transformer, cable and switchgear
systems, and further innovations regarding tower and controller settings.
The commercial aspects of the technology to be tested are expected to show a significant positive impact on the levelised cost of electricity (LCoE). The DEA believes that the elements to be tested at Nissum Bredning will bring significant savings within both capital and operating costs.
A major contributor is likely to be the gravity jacket foundation concept, which allows the construction of the foundations at lower cost than for monopiles. Foundations generally account for 20-30% of the costs of an offshore project.
The four SWT-7.0-154 wind turbines will be grid connected using the new 66kV cabling, which Siemens expects to be the standard voltage for future offshore wind power plants. The higher voltage results in lower costs for cabling, and lower losses. Further material savings will be provided by the slender tower concept using prototypes of a new lightweight turbine tower especially suited to jacket foundations.
Nissum Bredning Vind offshore wind power plant will be supported by a guaranteed feed-in tariff of DKK 0.7/ kWh (€ 0.09/kWh) for the initial 10 years, expected to equate to 50 000 full load hours of operation. Turbine installation is scheduled for summer 2017. Commissioning will be in the third quarter of next year.
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