Wave Spectral Analysis for designing Wave Energy Converters

Abstract

Assessing wave energy for estimating the resource potential, and further for determining design and operational parameters, requires a deep understanding of the local wave spectral characteristics. The analysis based on bulk Hs and Tp parameters only is not sufficient. Here we present a spectral statistical approach that allows identifying the main spectral components and their characteristics. Among others, the spectral band width, seasonal variability, and extremes play a crucial role in the actual potential. Complementary, for a quick global view using integral parameters, it is observed that the average bulk wave power is misleading, other parameters offer a more objective perspective. Based on that, we find that equatorial regions rather than extra-tropical ones are more attractive for wave energy exploitation.