Marine energy, also known as ocean energy, is a renewable source of power that comes from waves, tides, and temperature differences in the ocean. This energy can be used to generate electricity for homes, transportation, and industries. It includes wave power from surface waves and tidal power from moving water. Offshore wind power is different from marine energy. The ocean has a lot of energy potential and is close to many populated areas. Ocean energy can provide a significant amount of new renewable energy worldwide. The ocean can produce thermal energy from the sun's heat and mechanical energy from tides and waves.