Searched for: subject%3A%22Offshore%255C%2Bwind%22
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Kell, N.P. (author), van der Weijde, A.H. (author), Li, L. (author), Santibanez-Borda, E. (author), Pillai, A.C. (author)
This paper presents a novel agent-based, stochastic model, which uses game-theoretic principles to simulate Contract for Difference (CfD) auctions. The framework has use cases and implications for policymakers and renewable generators alike, and can be used by developers to prepare bidding strategy and for policymakers to empirically test...
article 2023
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Moverly Smith, B. (author), Clayton, R. (author), van der Weijde, A.H. (author), Thies, P.R. (author)
Recently, floating wind has enjoyed much public and governmental attention and is commonly identified as a crucial next step on the route to net zero targets for many countries. However, there is currently a large gap between the scale and readiness-level of devices in the water and the end-of- the-decade aspirational targets of many governments...
article 2022
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Gusatu, L.F. (author), Zuidema, C. (author), Faaij, A. (author)
Growing EU energy ambitions in the North Sea region are urging for an accelerated deployment of large-scale renewable energy (RE) infrastructure, with offshore wind farms (OWF) playing an essential role. However, implementing the current EU targets is limited by the competing spatial claims between existing sea uses and OWFs and uncertainties...
article 2022
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Martínez-Gordón, R. (author), Sánchez-Diéguez, M. (author), Fattahi, A. (author), Morales-España, G. (author), Sijm, J. (author), Faaij, A. (author)
The North Sea region, located in the Northwest of Europe, is expected to be a frontrunner in the European energy transition. This paper aims to analyse different optimal system configurations in order to meet net-zero emission targets in 2050. Overall, the paper presents two main contributions: first, we develop and introduce the IESA-NS model....
article 2022
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Li, C. (author), Mogollón, J.M. (author), Tukker, A. (author), Dong, J. (author), von Terzi, D. (author), Zhang, C. (author), Steubing, B. (author)
Offshore wind energy (OWE) is a cornerstone of future clean energy development. Yet, research into global OWE material demand has generally been limited to few materials and/or low technological resolution. In this study, we assess the primary raw material demand and secondary material supply of global OWE. It includes a wide assortment of...
article 2022
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Martinez-Gordon, R. (author), Gusatu, L. (author), Morales-Espana, G. (author), Sijm, J. (author), Faaij, A. (author)
The North Sea Offshore Grid concept has been envisioned as a promising alternative to: 1) ease the integration of offshore wind and onshore energy systems, and 2) increase the cross-border capacity between the North Sea region countries at low cost. In this paper we explore the techno-economic benefits of the North Sea Offshore Grid using two...
article 2022
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Li, C. (author), Mogollon, J.M. (author), Tukker, A. (author), Steubing, B. (author)
Continuous reduction in the levelized cost of energy is driving the rapid development of offshore wind energy (OWE). It is thus important to evaluate, from an environmental perspective, the implications of expanding OWE capacity on a global scale. Nevertheless, this assessment must take into account various scenarios for the growth of different...
article 2022
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Santhakumar, S. (author), Meerman, J.C. (author), Faaij, A.P.C. (author)
This article reviews experience curve applications in energy technology studies to illustrate best practices in analyzing technological learning. Findings are then applied to evaluate future performance projections of three emerging offshore energy technologies, namely, offshore wind, wave & tidal, and biofuel production from seaweed. Key...
article 2021
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Earle, F. (author), Huddlestone, J. (author), Williams, T. (author), Stock-Williams, C. (author), van der Mijle-Meijer, H. (author), de Vries, L. (author), van Heemst, H. (author), Hoogerwerf, E. (author), Koomen, L. (author), de Ridder, E.J. (author), Serraris, J.J. (author), Struijk, G. (author)
This paper describes the SPOWTT project. The intention of this project was to understand how sailing by crew transfer vessel (CTVs) to offshore wind farms affects the mental and physical wellbeing of individuals on board. The focus was on quantifying this impact, understanding the key drivers, with an aim to ensuring personnel can arrive to the...
article 2021
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Dragt, R.C. (author), Hengeveld, S.T. (author), Maljaars, J. (author)
Load sequence effects in fatigue crack growth, such as retardation and acceleration due to a large overload (OL) and underload (UL), can dramatically change the (remaining) fatigue life. These effects can be determined using analytical and numerical tools, often trading accuracy for a steep increase in required calculation time. This paper...
article 2020
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Stock Williams, C.F.W. (author), Krishna Swamy, S. (author)
Offshore wind farm managers and schedulers need to manage large numbers of wind turbine visits every day, in order to: repair minor faults; conduct inspections; and perform scheduled service operations. Daily schedules form a choice of which maintenance activities to conduct, taking account of: constraints on weather conditions, shifts, vessel...
article 2019
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Leontaris, G. (author), Morales-Nápoles, O. (author), Dewan, A. (author), Wolfert, A.R.M.R. (author)
Offshore asset construction is a complex and costly process that is subject to various uncertainties within the entire supply chain. Hence, both the construction management optimization and the reduction of deployment expenditures should be supported by automated decision support models which include proper representations of predominant...
article 2019
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Dragt, R.C. (author), Hengeveld, S.T. (author), Maljaars, J. (author)
Measurements at Offshore Wind Turbine (OWT) substructures show that typical loading patterns include overloads, underloads, and shifts in mean stress cycles, due to the everchanging wind direction. These events follow each other in time and are further expressed as load sequences. Load sequences may affect the fatigue life. A novel model...
conference paper 2018
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Dragt, R.C. (author), Allaix, D.L. (author), Maljaars, J. (author), Tuitman, J.T. (author), Salman, Y. (author), Otheguy, M.E. (author)
Fatigue is one of the main design drivers for offshore wind substructures. Using Fracture Mechanics methods, load sequence effects such as crack growth retardation due to large load peaks can be included in the fatigue damage estimation. Due to the sequence dependency, a method is required that represents the sequences of loads in the design or...
conference paper 2017
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Courage, W.M.G. (author), Nicoreac, M.P. (author), Kempker, P.L. (author)
For offshore wind turbines (OWT’s) environmental and accessibility conditions make inspection and maintenance costly. Hence the potential of cost reduction when the planning of these actions can be optimized. Taking uncertainties into account, a risk based concept is adopted in which probabilities of failure and its consequences are balanced...
conference paper 2017
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Dragt, R.C. (author), Maljaars, J. (author), Tuitman, J.T. (author), Salman, Y. (author), Otheguy, M.E. (author)
Retardation is a load sequence effect, which causes a reduced fatigue crack growth rate after an overload is encountered. Retardation can be cancelled when the overload is followed by an underload. The net effect is beneficial to the fatigue lifetime of Offshore Wind Turbines (OWTs). To be able to take this into account, computationally...
conference paper 2016
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Jansen, E. (author), De Jong, C. (author)
conference paper 2016
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Asgarpour, M. (author), Serraris, J.W. (author), de Ridder, E. (author), van den Broek, J. (author), Bos, J.E. (author)
Operation and maintenance (O&M) costs contribute to a significant part of Cost of Energy produced by offshore wind. In order to reduce the O&M costs and to guarantee safety and wellbeing of the maintenance technicians, for each individual wind farm an optimal set of support vessels and access systems should be selected. This selection should...
conference paper 2016
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Bolle, L.J. (author), de Jong, C.A.F. (author), Bierman, S.M. (author), van van Beek, P.J.G. (author), Wessels, P.W. (author), Blom, E. (author), van Damme, C.J.G. (author), Winter, H.V. (author), Dekeling, R.P.A. (author)
Concern exists about the potential effects of pile-driving sounds on fish, but evidence is limited, especially for fish larvae. A device was developed to expose larvae to accurately reproduced pile-driving sounds. Controlled exposure experiments were carried out to examine the lethal effects in common sole larvae. No significant effects were...
conference paper 2016
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Kastelein, R.A. (author), Helder-Hoek, L. (author), Gransier, R. (author), Terhune, J.M. (author), Jennings, N. (author), de Jong, C.A.F. (author)
Acoustic mitigation devices (AMDs) are used to deter marine mammals from construction sites to prevent hearing injury by offshore pile-driving noise. In order to quantify the distance at which AMDs designed as ‘seal scarers’ are detected by seals, the 50% hearing thresholds for playbacks of their sounds were determined. The broadband hearing...
article 2015
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