Commercial dive helmet and gear on the stern of a barge installing a massive wave energy buoy off Kaneoho Bay, Oahu. The 40-kW experimental buoy, employs the bobbing motion of the buoy to drive an electrical generator, that then sends power to the island via underwater cable, Hawaii, USA; Oahu, Hawaii, United States of AmericaImage #: 33800785 See More From: Dave Fleetham