Baseline Design of the Deep Turbine Installation-Floating, a New Floating Wind Concept

Serret, Jordi; Tezdogan, Tahsin; Stratford, Tim; Thies, Philipp R.; Venugopal, Vengatesan

doi:10.1115/omae2019-95477

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…[96] Hybrid spar (Toda Construction) [22,97] Floatgen (Ideol) [22,31] Eco TLP (Mocean, DBD Systems, Ewind) [22] SeaTwirl (SeaTwirl AB) [22] Semi-Spar (Cobra) [3] Hybrid TLP (Blue H Engineering) [57] WindCrete (UPC-BarcelonaTech) [22] OO-Star Wind Floater (Dr.techn.Olav Olsen) [98] Telwind (Esteyco) [99] Nezzy SCD (Aerodyn Engineering) [22] DeepWind (DTU et al) [22] Sea Flower (Fincantieri) [100] DTI-F (FWT Ltd.) [101] n/a (Naval Energies) [ Although the last time a gravity-based substructure was used in a commercial wind farm in Europe was in 2013 and the installation at the greatest water depth occurred in 2008, many new concepts of gravity-based concrete substructures for deeper waters are currently being developed (see Figure 11). For instance, the three conceptual substructures Gravitas, Vici Ventus and Seawind are reported to be suitable for water depths of up to 60 m, 30-100 m and 40-90 m, respectively [75,77,78].…”

Section: List Of New Conceptsmentioning

confidence: 99%

Concrete Support Structures for Offshore Wind Turbines: Current Status, Challenges, and Future Trends

2021

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Today’s offshore wind turbine support structures market is largely dominated by steel structures, since steel monopiles account for the vast majority of installations in the last decade and new types of multi-leg steel structures have been developed in recent years. However, as wind turbines become bigger, and potential sites for offshore wind farms are located in ever deeper waters and ever further from the shore, the conditions for the design, transport, and installation of support structures are changing. In light of these facts, this paper identifies and categorizes the challenges and future trends related to the use of concrete for support structures of future offshore wind projects. To do so, recent advances and technologies still under development for both bottom-fixed and floating concrete support structures have been reviewed. It was found that these new developments meet the challenges associated with the use of concrete support structures, as they will allow the production costs to be lowered and transport and installation to be facilitated. New technologies for concrete support structures used at medium and great water depths are also being developed and are expected to become more common in future offshore wind installations. Therefore, the new developments identified in this paper show the likelihood of an increase in the use of concrete support structures in future offshore wind farms. These developments also indicate that the complexity of future support structures will increase due to the development of hybrid structures combining steel and concrete. These evolutions call for new knowledge and technical know-how in order to allow reliable structures to be built and risk-free offshore installation to be executed.

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Section: List Of New Conceptsmentioning

confidence: 99%