So how do sea kites look like? According to an artist’s rendition they should look like as seen in this picture above. The purpose? A Swedish company named Minesto is planning to harness tidal energy using Sea Kites attached to the ocean floor as another source of ‘renewable’ energy. The system is called the ‘Deep Green‘ technology and as the data goes, each underwater turbine is estimated to produce 500 kilowatts of electricity.