Levelised cost of energy for offshore floating wind turbines in a life cycle perspective

Myhr, Anders; Bjerkseter, Catho; Ågotnes, Anders; Nygaard, Tor Anders

doi:10.1016/j.renene.2014.01.017

Cited by 406 publications

(273 citation statements)

References 7 publications

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“…Commercial offshore windfarms currently comprise bottom-fixed wind turbines that cannot be installed at depths exceeding 50 m [43]. Most potential wind energy is associated with areas above deeper waters, and so is not currently utilized.…”

Section: Development Of Floating Wind Farmsmentioning

confidence: 99%

A 2018 Horizon Scan of Emerging Issues for Global Conservation and Biological Diversity

Sutherland

Butchart

Connor

et al. 2018

Trends in Ecology & Evolution

126

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We present the results of our eighth annual horizon scan of emerging issues likely to affect global biological diversity, the environment, and conservation efforts in the future. The potential effects of these novel issues might not yet be fully recognized or understood by the global conservation community, and the issues can be regarded as both opportunities and risks. A diverse international team with collective expertise in horizon scanning, science communication, and conservation research, practice, and policy reviewed 100 potential issues and identified 15 that qualified as emerging, with potential substantial global effects. These issues include new developments in energy storage and fuel production, sand extraction, potential solutions to combat coral bleaching and invasive marine species, and blockchain technology. Aims of Horizon ScanningWe have conducted an annual horizon scan of global conservation issues since 2010 with the aim of highlighting, by consensus, emerging topics that are not yet widely known in the conservation community but could have substantial effects on biological diversity worldwide in the medium to long term. Our iterative, transferable process of horizon scanning, which is designed to be both transparent and democratic, is carried out by a team with a wide range of experiences and areas of expertise.Our aim has been to focus attention and stimulate debate about these subjects, potentially leading to new research foci, policy developments, or business innovations. These responses should help to facilitate better-informed forward-planning. It is difficult to gauge the direct effects of our horizon scans on the research, policy, or business communities, except through personal communication and hearsay. However, several topics recognized in our previous horizon scans Trends This is the eighth such annual horizon scan.An international team with expertise in horizon scanning, science communication, and conservation research, practice, and policy identified 15 issues, following widespread consultation and a Delphi-like scoring process to identify the most important.The issues were wide ranging, and include sand extraction, blockchain technology, use of robotics to combat invasive species, and new developments in energy storage and fuel production. There is now substantial action on this issue internationally, with several governments, including those of the USA and the UK, introducing legislative bans on microbeads in cosmetics and detergents, and many cosmetics companies voluntarily committing to halt their use of microplastics by 2020 [2,3]. New research on the effects of microbeads has revealed biological responses in both terrestrial and aquatic environments, with evidence demonstrating that microplastics reduce the survival and fitness of earthworms Lumbricus terrestris [4] and facilitate the accumulation of sorbed organic pollutants in fish [5]. Discussion of the use of gene editing to control invasive species or disease vectors, raised in our 2014 horizon scan [6], has increased...

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Section: Development Of Floating Wind Farmsmentioning

confidence: 99%

A 2018 Horizon Scan of Emerging Issues for Global Conservation and Biological Diversity

Sutherland

Butchart

Connor

et al. 2018

Trends in Ecology & Evolution

126

View full text Add to dashboard Cite

show abstract

“…Special attention has been paid to those activities or resources which play an important role in offshore maintenance: for instance, the energy losses during activity maintenance have been taken under consideration as well as fuel consumptions. All costs have been assumed under a literature review (Krohn et al 2009;Malcolm and Hansen 2006;Myhr et al 2014;Poore and Walford 2008;IRENA 2012;RAB 2010; The Crown Estate 2010). Equation (15.15) shows how the overall cost is based on associated costs:…”

Section: Costmentioning

confidence: 99%

Reliability and Preventive Maintenance

Garcia¹,

Sánchez²,

Barbati³

2016

Mare-Wint

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In this chapter, the authors explain how to perform the core analysis of a Reliability Centered Maintenance (RCM) process for an offshore wind turbine. The aim is to provide an engineering guide which can improve the maintenance of the system, and consequently increases its availability and the production of energy. The initial investigations have been carried out using a database for an onshore 5 MW wind turbine; the data has then been converted using a proper conversion factor, so that it can be used for a 10 MW offshore turbine case. The reliability and availability of the entire offshore wind turbine have been calculated through Reliability Prediction and a Reliability Block Diagram (RBD). In addition, a failure mode analysis is done using FMECA, in order to identify the most important failure modes in a risk priority order, and to the note the effect of propagation of each functional failure. The maintenance part of the RCM analysis has also been studied, to facilitate the creation of an optimum packaging of preventive maintenance tasks, which can help to avoid the functional failures of items throughout the system. Although the main target of the RCM is to reduce the downtime of the wind turbine, a reduction in Life Cycle Costs can be also accomplished through this process.

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“…However, research in Korea in this field is limited and structural data for reference is scare. Industries related to renewable energy projects are evaluated using the concept of levelized cost of energy (LCOE) which calculates the unit production cost of electricity [10]. Geographical, financial, and economic factors are taken into account as to facilitate market penetration of offshore wind farm projects.…”

Section: Objectives Of the Researchmentioning

confidence: 99%

“…Costs concerning both the horizontal and vertical types are extracted from "Levelised cost of energy for offshore floating wind turbines in a life cycle perspective" [10]. Each items' costs are analysed according to its weight in tons.…”

Section: Approachmentioning

confidence: 99%

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Assessment of Floating Offshore Wind Farm in Korea

2015

2015 International Conference on Substantial Environmental Engineering and Renewable Energy (SEERE-15) Jan. 13-14, 2015 Abu Dha

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Levelised cost of energy for offshore floating wind turbines in a life cycle perspective

Cited by 406 publications

References 7 publications

A 2018 Horizon Scan of Emerging Issues for Global Conservation and Biological Diversity

A 2018 Horizon Scan of Emerging Issues for Global Conservation and Biological Diversity

Reliability and Preventive Maintenance

Assessment of Floating Offshore Wind Farm in Korea

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