The 4 km subsea cable has been laid at Galway Bay, Ireland on April 10, 2015.
The cable will supply power to the site and allow unlimited data transfer from the site for researchers testing innovative marine technology including renewable ocean energy devices.
Research vessel Celtic Explorer was used to lay the cable, together with the frame to which sensors and monitoring equipment will be attached as part of the development of an ocean observatory at Galway Bay.
It is connected to the shore at Spiddal, a coastal village in the west of Ireland.
The project is a collaboration between the Sustainable Energy Authority of Ireland, the Marine Institute, University College Cork (Marine Renewable Energy Ireland – MaREI), SmartBay Ireland and Dublin City University.
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Video: SmartBay