Ocean thermal energy conversion (OTEC) refers to the process of generating electricity by utilizing the temperature difference between warm surface water and cold deep water in the ocean. There are several synonyms for OTEC, including ocean thermal energy, ocean thermal power, and ocean thermal electricity generation. The process involves harnessing the potential energy stored in the ocean's temperature gradient, which can be used to produce power. OTEC is a sustainable and renewable energy source that has the potential to produce clean energy in the long term. The development of OTEC technology is still in its early stages, but it has the potential to revolutionize the world's energy markets.