Energy production from tidal currents in an estuary: A comparative study of floating and bottom-fixed turbines

Sánchez, M.; Carballo, R.; Ramos, V.; Iglesias, G.

doi:10.1016/j.energy.2014.09.053

Cited by 42 publications

(22 citation statements)

References 35 publications

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“…Nevertheless, what determines the viability of a project, and therefore, decisions concerning tidal stream energy deployment in a coastal area, is the amount of energy production ( [27]). In other words, the performance of a specific Tidal Energy Converter (TEC) at a given location needs to be assessed [28]. The energy production (technical potential) (Et) at each grid cell of the model was calculated by using Eq.…”

Section: Energy Productionmentioning

confidence: 99%

method for the spatial targeting of tidal stream energy policies

Vazquez¹,

Astariz²,

Iglesias³

2018

Int. J. Mar. Ene.

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Policy making is called to play a decisive role in the commercialisation of tidal stream energy projects. For they are site-specific, spatial targeting of policies is needed, so that tidal stream regulations (financial supporting mechanisms, consenting procedures, etc.) could be concentrated to sites where they can achieve the greatest benefits. With this in view, the aim of this paper is: (i) to develop a new method to delimit the most suitable (target) areas for tidal stream energy policy intervention within a coastal area of interest, and (ii) to apply it to the Bristol Channel and Severn Estuary (UK). The method includes spatial numerical analysis by means of a Matlab-based code coupled with a Navier-Stokes solver. The programme works in steps, in which different constraints are imposed with a view to carry out a zoning process. As a result of this zoning process, four hotspots are selected, for which a set of policy interventions is proposed. This includes the specific levels of subsidisation for closing the grid parity gap of potential projects in each area. The method can be viewed as a supporting decision mechanism for spatially targeted policy-making and management of tidal stream energy across the Bristol Channel and Severn Estuary.

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Section: Energy Productionmentioning

confidence: 99%

method for the spatial targeting of tidal stream energy policies

Vazquez¹,

Astariz²,

Iglesias³

2018

Int. J. Mar. Ene.

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“…Nowadays, marine current power systems represent an important and promising renewable energy technology for future electricity generation and have recently gained worldwide attention [1]. Since the marine current energy has relatively higher power density and appreciably higher predictability than wind energy, the marine current power systems are generally more efficient as compared with wind power systems [2].…”

Section: Introductionmentioning

confidence: 99%

Fuzzy terminal sliding mode control for extracting maximum marine current energy

Yin

Liu

et al. 2015

Energy

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“…Among them, tidal stream energy is one of the most predictable and reliable resources [3]. With a number of full scale prototypes in operation [4] and the plans for commercial tidal arrays well advanced [5], this energy has the potential to make significant contributions towards a low carbon energy mix and a green energy economy in a number of areas worldwide, including straits between islands [6], sites in the nearby of headlands [7], or enclosed bodies of water, like estuaries [8]. A case in point is the Bristol Channelof national strategic significance as the single largest resource area for tidal energy in the UK [9].…”

Section: Introductionmentioning

confidence: 99%

A holistic method for selecting tidal stream energy hotspots under technical, economic and functional constraints

Vazquez

Iglesias

2016

Energy Conversion and Management

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Although a number of prospective locations for tidal stream farms have been identified, the development of a unified approach for selecting the optimum site in a region remains a current research topic. The objective of this work is to develop and apply a methodology for determining the most suitable sites for tidal stream farms, i.e. sites whose characteristics maximise power performance, minimise cost and avoid conflicts with competing uses of the marine space. Illustrated through a case study in the Bristol Channel, the method uses a validated hydrodynamics model to identify highly energetic areas and a geospatial Matlab-based program (designed ad hoc) to estimate the energy output that a tidal farm at the site with a given technology would have. This output is then used to obtain the spatial distribution of the levelised cost of energy and, on this basis, to preselect certain areas. Subsequently, potential conflicts with other functions of the marine space (e.g. fishing, shipping) are considered. The result is a selection of areas for tidal stream energy development based on a holistic approach, encompassing the relevant technical, economic and functional aspects. This methodology can lead to a significant improvement in the selection of tidal sites, thereby increasing the possibilities of project acceptance and development.

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Energy production from tidal currents in an estuary: A comparative study of floating and bottom-fixed turbines

Cited by 42 publications

References 35 publications

method for the spatial targeting of tidal stream energy policies

method for the spatial targeting of tidal stream energy policies

Fuzzy terminal sliding mode control for extracting maximum marine current energy

A holistic method for selecting tidal stream energy hotspots under technical, economic and functional constraints

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