Marine renewable energy pioneer Atlantis has completed construction of the lead-off stage of its giant MeyGen tidal power project in the UK's Pentland Firth, shifting gears on the 392MW projects into the 25-year operation phase.

At 6MW capacity, MeyGen phase 1A, is the world's largest tidal stream array.

This milestone follows on from an extended running-in period at the project, located in 35 metres of water in the Inner Sound between the Scottish mainland and the uninhabited island of Stroma, during which the four-unit array has generated approximately 6GWh of energy, including setting a world record for monthly production from a tidal stream array in March, when it generated 1,400MWh.