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

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...

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Main Authors: Alexandre Mathern, Christoph von der Haar, Steffen Marx
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/14/7/1995
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author Alexandre Mathern
Christoph von der Haar
Steffen Marx
author_facet Alexandre Mathern
Christoph von der Haar
Steffen Marx
author_sort Alexandre Mathern
collection DOAJ
description 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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spelling doaj.art-59681bb8534048579266aa49ef9b86f92023-11-21T14:13:33ZengMDPI AGEnergies1996-10732021-04-01147199510.3390/en14071995Concrete Support Structures for Offshore Wind Turbines: Current Status, Challenges, and Future TrendsAlexandre Mathern0Christoph von der Haar1Steffen Marx2Department of Architecture and Civil Engineering, Chalmers University of Technology, Sven Hultins Gata 6, SE-41296 Gothenburg, Swedengrbv Ingenieure im Bauwesen GmbH & Co. KG, Expo Plaza 10, 30539 Hannover, GermanyInstitute of Concrete Structures, Technische Universität Dresden, August-Bebel-Straße 30/30A, 01219 Dresden, GermanyToday’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.https://www.mdpi.com/1996-1073/14/7/1995wind energyoffshore windsupport structuresfoundationsconcrete structurestrends
spellingShingle Alexandre Mathern
Christoph von der Haar
Steffen Marx
Concrete Support Structures for Offshore Wind Turbines: Current Status, Challenges, and Future Trends
Energies
wind energy
offshore wind
support structures
foundations
concrete structures
trends
title Concrete Support Structures for Offshore Wind Turbines: Current Status, Challenges, and Future Trends
title_full Concrete Support Structures for Offshore Wind Turbines: Current Status, Challenges, and Future Trends
title_fullStr Concrete Support Structures for Offshore Wind Turbines: Current Status, Challenges, and Future Trends
title_full_unstemmed Concrete Support Structures for Offshore Wind Turbines: Current Status, Challenges, and Future Trends
title_short Concrete Support Structures for Offshore Wind Turbines: Current Status, Challenges, and Future Trends
title_sort concrete support structures for offshore wind turbines current status challenges and future trends
topic wind energy
offshore wind
support structures
foundations
concrete structures
trends
url https://www.mdpi.com/1996-1073/14/7/1995
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