Oceanic Wave Energy Devices

The global renewable energy sources (RESs) are comprised of solar photovoltaic, wind energy, marine energy, geothermal energy, and so on. Among the RESs, wave energy is considered as the prominent energy resource as the oceans cover around three-fourths of total area of the earth’s surface and it contains a huge amount of energy that can be extracted from the ocean. However, to extract the energy from this source, it is essential to know about its exact location. This chapter presents various wave energy converters (WECs) and devices with their operation. The resources along with the main renewable energy centers, the technical, environmental, and social aspects of the procedures are discussed. Several methods of wave energy extraction and wave termination are also explained. Construction of the WEC or devices such as WET-NZ, Oyster, Limpet, and Penguin along with their visual structures and working principles are demonstrated. Additionally, many other devices such as Paramus, Power buoy, SEAREV, SeaRay, etc., are studied that can harvest the power from the wave. Finally, the construction and operational formula of point absorber WEC is discussed along with its related factors. The chapter concludes with the discussion of current research and educational approach to wave energy.