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                                                                                                                                 RENEWABLE ENERGY IN THE OCEAN







                                                                                                                                                                                                 Milad Shadman

                                                                                                                                                                                             Segen Farid Estefen









                                                                                                                                 1. Introduction


                                                                                                                                    Offshore renewable energy sourc-      difference and chemical properties. These
                                                                                                                                 es can be divided into two categories,  properties include waves, tidal range, tid-
                                                                                                                                 as  shown in  Figure 1.  The  first is  ma-  al current, salinity and thermal gradients,
                                                                                                                                 rine renewable energy, which includes  and  ocean  currents.  The  second  includes
                                                                                                                                 sources  originating from seawater  and  renewable sources not originating from
                                                                                                                                 is defined as energy captured by tech-   seawater, which can be harnessed in the
                                                                                                                                 nologies that use the movement of sea-   ocean space, such as offshore wind and
                                                                                                                                 water or take advantage of the thermal   solar energy.


                                                                                                                                              Figure 1- Classification of renewable sources in the ocean


                                                                                                                                                    Renewable Energy in the Ocean




                                                                                                                                        Oceanic Space                        Sources from Sea Water





                                                                                                                                  Offshore Wind   Floating Solar         Wave           Tidal          Tide
                                                                                                                                                                                        Range         Current

                                                                                                                                                                         Ocean         Thermal        Salinity
                                                                                                                                                                        Current       Gradient       Gradient
                                                                                                                                                                                            Source: author’s elaboration



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