“…Over the last two decades, a multitude of WEC concepts, based on different working principles, has been put forward. Among them, point absorbers (e.g., CorPower [14,15]), overtopping devices (e.g., Wavedragon [16] and Wavecat [17]), oscillating water columns [18,19], attenuators (e.g., Pelamis [20]), as well as oscillating wave surge (e.g., Oyster [21]) and submerged differential pressure (e.g., CETO [22]) devices, stand out. However, the great majority of them are still present at low technology readiness levels, far from commercial viability [23].…”