Marine energy refers to the renewable energy derived from the ocean and other water bodies. This includes energy generated from various marine resources, such as waves, tides, currents, and thermal energy from the seawater. Marine energy encompasses different technologies and methods aimed at harnessing the kinetic and potential energies of water movements, as well as the temperature gradients present in oceans and seas. As a renewable energy source, it has the potential to contribute significantly to reducing greenhouse gas emissions and dependence on fossil fuels, while providing a sustainable power supply for coastal communities and beyond.