Wave groupiness and spectral bandwidth as relevant parameters for the performance assessment of wave energy converters

Saulnier, Jean-Baptiste; Clément, Alain; Falcão, António F. de O.; Pontes, Teresa; Prevosto, Marc; Ricci, P.

doi:10.1016/j.oceaneng.2010.10.002

Cited by 53 publications

(45 citation statements)

References 34 publications

(26 reference statements)

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“…There are many other inconsistencies occurring with the use of scatter diagrams, such as the dependency of the matrix on location and wave directionality. The IEC standards committee is a very important initiative that endeavours to standardise the parameters used for wave energy calculation [18][19][20][21][22].…”

Section: Analysis Of Private and Public Assessment Methods In Ecomentioning

confidence: 99%

Integrated methodologies of economics and socio-economics assessments in ocean renewable energy: Private and public perspectives

Dalton

Allan²,

Georgakaki

et al. 2016

International Journal of Marine Energy

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Abstract-This paper offers a holistic approach to the evaluation of an ocean renewable energy (ORE) technology type or specific project in order to provide a comprehensive assessment of both narrow economic and broader socioeconomic performance.. This assessment incorporates methods from three pillars areas: Economic -financial returns and efficient use of resources, Social -employment, social and community cohesion and identity, and Environmental -including the physical environment and pollution. These three pillars are then considered in the broader context of governance. In order to structure this evaluation, a novel parameter space model was created, defined by the three pillars and by the scale of the system under assessment. The scale of the system ranged from individual components of an ORE project; to projects comprising of a number of devices; through to a geographic regions in which multiple farms may be deployed. The parameter space consists of an inner circle representing the boundary of interest for a private investor, or a firm, developing an ORE project. The outer circle is charactersised by assessment tools typically employed at the broader stakeholder level including economic, social, and environmental methods that can be employed at local, regional or national scale and which are typically employed to inform policy and decision making regarding ORE. Governance sets the stage within which management occurs. Wider impacts to the firm undertaking the project will take into account "externalities" of the project across the three fields. In this model, key methods identified are mapped onto this parameter space and the connectivity explored. The paper demonstrates that the three pillars are inter-connected and each must be considered in any meaningful assessment of ORE sustainability. An integrated assessment approach has the ability to address both the private and the public aspects of an ORE development,. This analysis provides insights on existing best practice, but also reveales the potential for disconnect between an ORE project's commercial viability and its contribution to environmental and social goals..

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Section: Analysis Of Private and Public Assessment Methods In Ecomentioning

confidence: 99%

Integrated methodologies of economics and socio-economics assessments in ocean renewable energy: Private and public perspectives

Dalton

Allan²,

Georgakaki

et al. 2016

International Journal of Marine Energy

Self Cite

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“…Books were overtopping Low head turbine published by Falnes (2002) and Cruz (2008). In addition to devicespecific R&D, scientific research has been carried out on assessment of wave energy resource (Kerbiriou et al, 2007;Folley and Whittaker, 2009;Saulnier et al, 2011), on device control for maximising power capture (Hals et al, 2002;Babarit and Clément, 2006;Crétel et al, 2011;Clément and Babarit, 2012;Fusco and Ringwood, 2012), on device performance and on array interactions (Folley et al, 2012;Babarit, 2013).…”

Section: Landmark Studiesmentioning

confidence: 99%

Hydrodynamic modelling of marine renewable energy devices: A state of the art review

et al. 2015

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a b s t r a c tThis paper reviews key issues in the physical and numerical modelling of marine renewable energy systems, including wave energy devices, current turbines, and offshore wind turbines. The paper starts with an overview of the types of devices considered, and introduces some key studies in marine renewable energy modelling research. The development of new International Towing Tank Conference (ITTC) guidelines for model testing these devices is placed in the context of guidelines developed or under development by other international bodies as well as via research projects. Some particular challenges are introduced in the experimental and numerical modelling and testing of these devices, including the simulation of Power-Take-Off systems (PTOs) for physical models of all devices, approaches for numerical modelling of devices, and the correct modelling of wind load on offshore wind turbines. Finally, issues related to the uncertainty in performance prediction from model test results are discussed.

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“…As a consequence, the met-ocean data was pre-processed to ensure consistency in frequency resolution and measurement units. This process was important because some wave parameters, such as spectral band-width, are known to be sensitive to the frequency resolution [15,16]. After processing, the frequency discretization ranges from 0.004 to 0.4775 Hz at constant 0.004 Hz bin-width.…”

Section: Wave Data Analysismentioning

confidence: 99%

Wave Energy Converter Annual Energy Production Uncertainty Using Simulations

Hiles¹,

Beatty²,

Andrés

2016

JMSE

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Critical to evaluating the economic viability of a wave energy project is: (1) a robust estimate of the electricity production throughout the project lifetime and (2) an understanding of the uncertainty associated with said estimate. Standardization efforts have established mean annual energy production (MAEP) as the metric for quantification of wave energy converter (WEC) electricity production and the performance matrix approach as the appropriate method for calculation. General acceptance of a method for calculating the MAEP uncertainty has not yet been achieved. Several authors have proposed methods based on the standard engineering approach to error propagation, however, a lack of available WEC deployment data has restricted testing of these methods. In this work the magnitude and sensitivity of MAEP uncertainty is investigated. The analysis is driven by data from simulated deployments of 2 WECs of different operating principle at 4 different locations. A Monte Carlo simulation approach is proposed for calculating the variability of MAEP estimates and is used to explore the sensitivity of the calculation. The uncertainty of MAEP ranged from 2%-20% of the mean value. Of the contributing uncertainties studied, the variability in the wave climate was found responsible for most of the uncertainty in MAEP. Uncertainty in MAEP differs considerably between WEC types and between deployment locations and is sensitive to the length of the input data-sets. This implies that if a certain maximum level of uncertainty in MAEP is targeted, the minimum required lengths of the input data-sets will be different for every WEC-location combination.

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Wave groupiness and spectral bandwidth as relevant parameters for the performance assessment of wave energy converters

Cited by 53 publications

References 34 publications

Integrated methodologies of economics and socio-economics assessments in ocean renewable energy: Private and public perspectives

Integrated methodologies of economics and socio-economics assessments in ocean renewable energy: Private and public perspectives

Hydrodynamic modelling of marine renewable energy devices: A state of the art review

Wave Energy Converter Annual Energy Production Uncertainty Using Simulations

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