The 2MW L’Arcouest machine, which like its mate - installed in January - flies a 16-metre-diameter rotor in an 'open-centred' design, will operate at water depths of 40 metres, off the channel island of Bréhatas.

It was installed by OpenHydro, a subsidiary of French naval giant DCNS, using its purpose-build deployment barge.

“OpenHydro, DCNS and EDF have worked hand-in-hand to deliver this milestone for the tidal energy industry," states OpenHydro chief executive James Ives.

"Paimpol-Bréhat