Tidal kites: New technology harnessing ocean energy
Winged machines are 'flying' - or at least swimming - beneath the waters of the Faroe Islands in the North Atlantic. Known as 'sea dragons' or 'tidal kites', they look like aircraft, but are in fact high-tech tidal turbines, generating electricity from the power of the ocean. So, how does the technology work?
This video is from BBC Click, the BBC’s flagship technology programme.