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Impact of tidal-stream arrays in relation to the natural variability of sedimentary processes

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  • Robins, Peter E.
  • Neill, Simon P.
  • Lewis, Matt J.

Abstract

Tidal Energy Converter (TEC) arrays are expected to reduce tidal current speeds locally, thus impacting sediment processes, even when positioned above bedrock, as well as having potential impacts to nearby offshore sand banks. Furthermore, the tidal dissipation at potential TEC sites can produce high suspended sediment concentrations (turbidity maxima) which are important for biological productivity. Yet few impact assessments of potential TEC sites have looked closely at sediment dynamics beyond local scouring issues. It is therefore important to understand to what extent exploitation of the tidal energy resource will affect sedimentary processes, and the scale of this impact is here assessed in relation to natural variability. At one such site in the Irish Sea that is highly attractive for the deployment of TEC arrays, we collect measurements of sediment type and bathymetry, apply a high resolution unstructured morphodynamic model, and a spectral wave model in order to quantify natural variability due to tidal and wave conditions. We then simulate the impacts of tidal-stream energy extraction using the morphodynamic model. Our results suggest that the sedimentary impacts of ‘first generation’ TEC arrays (i.e. less than 50 MW), at this site, are within the bounds of natural variability and are, therefore, not considered detrimental to the local environment. Yet we highlight potential environmental issues and demonstrate how impact assessments at other sites could be investigated.

Suggested Citation

  • Robins, Peter E. & Neill, Simon P. & Lewis, Matt J., 2014. "Impact of tidal-stream arrays in relation to the natural variability of sedimentary processes," Renewable Energy, Elsevier, vol. 72(C), pages 311-321.
    • Handle: RePEc:eee:renene:v:72:y:2014:i:c:p:311-321
    DOI: 10.1016/j.renene.2014.07.037
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    References listed on IDEAS

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    1. Iyer, A.S. & Couch, S.J. & Harrison, G.P. & Wallace, A.R., 2013. "Variability and phasing of tidal current energy around the United Kingdom," Renewable Energy, Elsevier, vol. 51(C), pages 343-357.
    2. Neill, Simon P. & Litt, Emmer J. & Couch, Scott J. & Davies, Alan G., 2009. "The impact of tidal stream turbines on large-scale sediment dynamics," Renewable Energy, Elsevier, vol. 34(12), pages 2803-2812.
    3. Ahmadian, Reza & Falconer, Roger & Bockelmann-Evans, Bettina, 2012. "Far-field modelling of the hydro-environmental impact of tidal stream turbines," Renewable Energy, Elsevier, vol. 38(1), pages 107-116.
    4. Neill, Simon P. & Hashemi, M. Reza & Lewis, Matt J., 2014. "The role of tidal asymmetry in characterizing the tidal energy resource of Orkney," Renewable Energy, Elsevier, vol. 68(C), pages 337-350.
    5. Neill, Simon P. & Jordan, James R. & Couch, Scott J., 2012. "Impact of tidal energy converter (TEC) arrays on the dynamics of headland sand banks," Renewable Energy, Elsevier, vol. 37(1), pages 387-397.
    6. Neill, Simon P. & Hashemi, M. Reza, 2013. "Wave power variability over the northwest European shelf seas," Applied Energy, Elsevier, vol. 106(C), pages 31-46.
    7. Barbariol, Francesco & Benetazzo, Alvise & Carniel, Sandro & Sclavo, Mauro, 2013. "Improving the assessment of wave energy resources by means of coupled wave-ocean numerical modeling," Renewable Energy, Elsevier, vol. 60(C), pages 462-471.
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