Tidal energy potential in UK waters

Burrows, Roger; Walkington, Ian; Yates, Nick; Hedges, Terry; Li, M.; Zhou, Jian Guo; Chen, D. Y.; Wolf, Judith; Holt, Jason; Proctor, Roger

doi:10.1680/maen.2009.162.4.155

Cited by 24 publications

(16 citation statements)

References 6 publications

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“…During neap tides, the concurrent operation of tidal impoundments certainly reduces the duration of power generation gaps, but could benefit from additional projects across the UK to further close this gap. This outcome is in line with previous investigations of Burrows et al, (2009b) and Wolf et al (2009), and could guide the strategic site selection process of future proposals. Attention should be drawn to the significance of the wetted surface area on the power output.…”

Section: 3supporting

confidence: 87%

“…Other assumptions are made on the grounds of the numerical modelling limitations. For the far-field study of Burrows et al, (2009b) it was reported that the bathymetry at nodes close to impoundment sluices and turbines were set to 30 m, to ensure the numerical stability without having to reduce the time step impractically for the simulations. This modification can distort the local flow structure, but it is doubtful whether it affects the far-field findings.…”

Section: Numerical Assessment Limitations and Potentialmentioning

confidence: 99%

“…These numerical tools extend from simplified theoretical and zero-dimensional models Aggidis and Benzon, 2013;Prandle, 2009;Prandle, 1984) to more sophisticated multidimensional tools Cornett et al, 2013;Yates et al, 2013a,b;Ahmadian et al, 2010;Xia et al, 2010aXia et al, , 2010bXia et al, , 2010cZhou et al, 2014aZhou et al, , 2014bBurrows et al, 2009aBurrows et al, , 2009b) that often require High Performance Computing (HPC) capabilities (Wolf et al, 2009) to be practically applicable. Most importantly, the reliability of such modelling studies is dependent on the assumptions underpinning the inherent basic fluid mechanics.…”

Section: Introductionmentioning

confidence: 99%

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Representation and operation of tidal energy impoundments in a coastal hydrodynamic model

et al. 2016

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A methodology associated with the simulation of tidal range projects through a coastal hydrodynamic model is discussed regarding its capabilities and limitations. Particular focus is directed towards the formulations imposed for the representation of hydraulic structures and the corresponding model boundary conditions. Details of refinements are presented that would be applicable in representing the flow (and momentum flux) expected through tidal range turbines to inform the regional modelling of tidal lagoons and barrages. A conceptual tidal lagoon along the North Wales coast, a barrage across the Severn Estuary and the Swansea Bay Lagoon proposal are used to demonstrate the effect of the refinements for projects of a different scale. The hydrodynamic model results indicate that boundary refinements, particularly in the form of accurate momentum conservation, have a noticeable influence on near-field conditions and can be critical when assessing the environmental impact arising from the schemes. Finally, it is shown that these models can be used to guide and improve tidal impoundment proposals.

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Section: 3supporting

confidence: 87%

Section: Numerical Assessment Limitations and Potentialmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Representation and operation of tidal energy impoundments in a coastal hydrodynamic model

et al. 2016

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“…Zero-dimensional modelling was initially used to investigate the different possible operating modes for tidal barrages and lagoons, exploring turbine performance at different barrage sites independently [1,8,9].…”

Section: (C) Joule Study Tidal Range Resultsmentioning

confidence: 99%

Appraising the extractable tidal energy resource of the UK's western coastal waters

Yates

Walkington

Burrows

et al. 2013

Phil. Trans. R. Soc. A.

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A two-dimensional west coast tidal model, built on the ADCIRC platform (an unstructured grid twodimensional depth-integrated shallow water model), has been developed to examine the scope for reliable and fully predictable electricity generation from UK coastal waters using an ambitious combination of estuary barrages, tidal lagoons and tidal stream generator arrays. The main emphasis has been towards conjunctive operation of major estuary barrages, initially including the presence of pilotscale tidal stream developments, though ambitious exploitation of extensive tidal streams has also been explored.

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“…There is significant evidence to suggest that global mean sea level is currently rising significantly, after a period of little or no increase for almost 2,000 years (e.g. Gehrels et al 2004;Miller and Douglas 2004;Church and White 2006;Bindoff et al 2007). Here, we investigate how sea levels of up to 5 m above present-day levels, in combination with tidal energy extraction by large-scale tidal power plants, influence the tide on the northwest European shelf.…”

Section: Introductionmentioning

confidence: 99%

Tides, sea-level rise and tidal power extraction on the European shelf

2012

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An established numerical tidal model has been used to investigate the impact of various sea-level rise (SLR) scenarios, as well as SLR in combination with large-scale tidal power plants on European shelf tidal dynamics. Even moderate and realistic levels of future SLR are shown to have significant impacts on the tidal dynamics of the area. These changes are further enhanced when SLR and tidal power plants are considered in combination, resulting in changes to tidal amplitudes, currents and associated tidal dissipation and bed shear stresses. Sea-level rise is the dominant influence on any far-field impacts, whereas tidal power plants are shown to have the prevailing influence over any changes close to the point of energy extraction. The spatial extent of the impacts of energy extraction is shown to be affected by the sea level when more than one tidal power plant in the Irish Sea was considered. Different ways to implement SLR in the model are also discussed and shown to be of great significance for the response of the tides.

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Tidal energy potential in UK waters

Cited by 24 publications

References 6 publications

Representation and operation of tidal energy impoundments in a coastal hydrodynamic model

Representation and operation of tidal energy impoundments in a coastal hydrodynamic model

Appraising the extractable tidal energy resource of the UK's western coastal waters

Tides, sea-level rise and tidal power extraction on the European shelf

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