Aegir — a tie-up between Swedish utility Vattenfall and Edinburgh-based Pelamis Wave Power — has plans to sail 14 750kW P2 wave-energy converters (WECs) out to the 2sq km site, roughly 10km from land, as part of a 10MW lead-off phase.

Ultimately, the development could comprise 26 of the serpentine devices, slack-moored and spaced 300 metres apart in a “daisy­chain” to form a 20MW complex, supplying power to 26,000 homes.