The Pentland Firth has been described as the greatest untapped source of energy in Scotland, and has the potential to generate vast quantities of tidal, wind and wave power.
It is estimated that around 8 TWh could be generated by tidal power in the Pentland Firth, representing 8% of total UK electricity consumption of 350 TWh.
However, building any such development will prove to be a major engineering project, and it will be a challenge to overcome the hostile waters of the Firth.
Never the less, Dutch firm, Tocardo, already plans to build a 10mw prototype tidal energy plant in the firth. A further 1,600 megawatts of production are planned.