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Assessment of the energy extraction potential at tidal sites around the Channel Islands

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  • Coles, D.S.
  • Blunden, L.S.
  • Bahaj, A.S.

Abstract

Tidal flows around the Channel Islands contain a significant energy resource that if harnessed could provide electrical power to the Channel Islands, the UK and France. We have developed a new 2D hydrodynamic model of the English Channel which gives an improvement to the temporal and spatial resolution of the ambient flow in comparison with previous regional scale resource assessments. The ambient flow was characterised to identify suitable sites, resulting in a reduction in total development area of up to 80% compared with previous studies. Estimates for upper bound energy extraction confirm that Alderney Race contains the majority of the Channel Islands resource, giving a maximum potential of 5.1 GW, which exceeds a previous estimate for the Pentland Firth by 35%. This is followed by Casquets (0.47 GW) and then Big Roussel (0.24 GW). Our work shows that energy extraction at Alderney Race has a constructive impact on the resource at Casquets, and that the sensitivity to added drag at each site with respect to energy extraction is highly dependent on bathymetry and the proximity of coastlines. These results have implications for the overall resource development within the Channel Islands, where regulation is needed to account for site-site interaction.

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  • Coles, D.S. & Blunden, L.S. & Bahaj, A.S., 2017. "Assessment of the energy extraction potential at tidal sites around the Channel Islands," Energy, Elsevier, vol. 124(C), pages 171-186.
    • Handle: RePEc:eee:energy:v:124:y:2017:i:c:p:171-186
    DOI: 10.1016/j.energy.2017.02.023
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    References listed on IDEAS

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    9. Jon Hardwick & Ed B. L. Mackay & Ian G. C. Ashton & Helen C. M. Smith & Philipp R. Thies, 2021. "Quantifying the Effects of Wave—Current Interactions on Tidal Energy Resource at Sites in the English Channel Using Coupled Numerical Simulations," Energies, MDPI, vol. 14(12), pages 1-17, June.
    10. Yang, Zhaoqing & Wang, Taiping & Branch, Ruth & Xiao, Ziyu & Deb, Mithun, 2021. "Tidal stream energy resource characterization in the Salish Sea," Renewable Energy, Elsevier, vol. 172(C), pages 188-208.
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    12. Goss, Z.L. & Coles, D.S. & Kramer, S.C. & Piggott, M.D., 2021. "Efficient economic optimisation of large-scale tidal stream arrays," Applied Energy, Elsevier, vol. 295(C).
    13. El Hage, Hicham & Herez, Amal & Ramadan, Mohamad & Bazzi, Hassan & Khaled, Mahmoud, 2018. "An investigation on solar drying: A review with economic and environmental assessment," Energy, Elsevier, vol. 157(C), pages 815-829.
    14. M. S. Chowdhury & Kazi Sajedur Rahman & Vidhya Selvanathan & Narissara Nuthammachot & Montri Suklueng & Ali Mostafaeipour & Asiful Habib & Md. Akhtaruzzaman & Nowshad Amin & Kuaanan Techato, 2021. "Current trends and prospects of tidal energy technology," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 23(6), pages 8179-8194, June.
    15. Jérôme Thiébot & Nasteho Djama Dirieh & Sylvain Guillou & Nicolas Guillou, 2021. "The Efficiency of a Fence of Tidal Turbines in the Alderney Race: Comparison between Analytical and Numerical Models," Energies, MDPI, vol. 14(4), pages 1-13, February.
    16. Thiébaut, Maxime & Sentchev, Alexei & du Bois, Pascal Bailly, 2019. "Merging velocity measurements and modeling to improve understanding of tidal stream resource in Alderney Race," Energy, Elsevier, vol. 178(C), pages 460-470.
    17. Nasteho Djama Dirieh & Jérôme Thiébot & Sylvain Guillou & Nicolas Guillou, 2022. "Blockage Corrections for Tidal Turbines—Application to an Array of Turbines in the Alderney Race," Energies, MDPI, vol. 15(10), pages 1-18, May.
    18. Mejia-Olivares, Carlos Joel & Haigh, Ivan D. & Angeloudis, Athanasios & Lewis, Matt J. & Neill, Simon P., 2020. "Tidal range energy resource assessment of the Gulf of California, Mexico," Renewable Energy, Elsevier, vol. 155(C), pages 469-483.
    19. Goh, Hooi-Bein & Lai, Sai-Hin & Jameel, Mohammed & Teh, Hee-Min, 2020. "Potential of coastal headlands for tidal energy extraction and the resulting environmental effects along Negeri Sembilan coastlines: A numerical simulation study," Energy, Elsevier, vol. 192(C).
    20. Nicolas Guillou & Georges Chapalain, 2017. "Tidal Turbines’ Layout in a Stream with Asymmetry and Misalignment," Energies, MDPI, vol. 10(11), pages 1-14, November.
    21. Pierre-Luc Delafin & François Deniset & Jacques André Astolfi & Frédéric Hauville, 2021. "Performance Improvement of a Darrieus Tidal Turbine with Active Variable Pitch," Energies, MDPI, vol. 14(3), pages 1-18, January.
    22. Burić, Melita & Grgurić, Sanja & Mikulčić, Hrvoje & Wang, Xuebin, 2021. "A numerical investigation of tidal current energy resource potential in a sea strait," Energy, Elsevier, vol. 234(C).

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