MeyGen is the worlds largest tidal energy plant which is currently in construction. The project uses four 1.5 MW turbines with 16m rotor diameter turbines submerged on the seabed. The project is owned and run by Tidal Power Scotland Limited and Scottish Enterprise. The high speed of currents in the area, reaching up to 5 metres per second (11 mph), made the chosen site in the Pentland Firth well suited to this type of energy generation… In December 2016 it was announced that the first turbine had begun full power operations, and all four turbines were installed by February 2017. Atlantis plans for 400 MW.
[wikipedia.org] – MeyGen