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Co-located wave-wind farms: Economic assessment as a function of layout

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  • Astariz, S.
  • Perez-Collazo, C.
  • Abanades, J.
  • Iglesias, G.

Abstract

Marine energies have a significant potential as an alternative to fossil fuels. However, the current high cost of the technology or the intermittency of the resources are often cited as a barrier to their large-scale development. The combined harnessing of different ocean resources in the same area can contribute to overcoming these issues. This work deals, in particular, with co-located wind and wave farms. With a currently operational wind farm as a reference, different co-located layouts are proposed and their impact on the Levelised Cost of Energy (LCOE) is analysed. A third-generation spectral wave model (SWAN) and real wave climate data are used. First, the combined use of the resource is characterised – energy yield per unit area, smoothing of power output, average power output and its seasonal variability. Second, a number of co-located layouts and the baseline (wind only) farm are compared in economic terms. Finally, conclusions are drawn on the potential cost reductions in co-located farms. We find that the energy cost is reduced by more than 50% relative to stand-alone wave farms. These results confirm the interest of combining wave and wind energy through co-located farms for the purpose of enhancing the economic viability of wave energy.

Suggested Citation

  • Astariz, S. & Perez-Collazo, C. & Abanades, J. & Iglesias, G., 2015. "Co-located wave-wind farms: Economic assessment as a function of layout," Renewable Energy, Elsevier, vol. 83(C), pages 837-849.
    • Handle: RePEc:eee:renene:v:83:y:2015:i:c:p:837-849
    DOI: 10.1016/j.renene.2015.05.028
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