Acting on behalf of Spanish civil engineering and consulting firm ESTEYCO, TÜV SÜD is supporting the design and development of an innovative foundation for offshore wind-energy turbines in the ELISA and ELICAN projects funded by the European Union. A pilot turbine was installed off the eastern coast of Gran Canaria in June 2018. TÜV SÜD experts have accompanied the project from design examination to pilot-turbine Installation.
Within the scope of the ELISA and ELICAN projects, an industrial consortium under the leadership of ESTEYCO is developing an innovative support structure for offshore wind-energy turbines to be used in deep water. The combination of a telescopic tower and a concrete foundation which acts as a self-buoyant platform during transport cuts the installation costs of offshore wind-energy turbines significantly. The entire structure can be assembled from precast and in-situ concrete elements in the dry dock. During sea transport, the foundation acts as a floating body. The telescopic tower is retracted to ensure a low centre of gravity and thus improve the platform's floating stability. During installation, the foundation is lowered and the telescopic tower extended. Transportation and installation do not require costly use of special installation vessels and cranes. The ELICAN prototype of the support structure is designed for a wind turbine with a capacity of 5 MW. The two projects, ELISA and ELICAN, are funded by the European Union within the “Horizon 2020” programme.
“We are very pleased that ESTEYCO are trusting in our expertise and experience for this complex and exciting project”, says Florian Singer, project manager of TÜV SÜD Industrie Service GmbH. Within the scope of the ELISA and ELICAN projects, TÜV SÜD's experts examine the design of this innovative concept and provide inspection and monitoring services during prototype installation. Examination of the design and support structure and of static and dynamic analyses requires close collaboration between naval architects and experts in load analysis of wind-turbine structures and concrete structures. Inspection of the condition of installation is particularly challenging.
TÜV SÜD has been recognized by the Federal Maritime and Hydrographic Agency (Bundesamt für Seeschifffahrt und Hydrographie, BSH) for the certification of offshore wind farms and accredited as certification body for offshore and onshore wind-energy turbines and components. TÜV SÜD's experts have extensive experience in all types of inspections, expert reports and certifications required within the scope of international offshore projects.
Further information about TÜV SÜD's services in the field of wind energy can be found here.
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Press contact: Dr Thomas Oberst
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