The FID, which follows yesterday's granting by the Scottish government of a marine licence for the development, pushes the button on investment of some NKr2bn ($236m), pointing to a potential per megawatt cost reduction as great as 70% compared to the company's original pilot project off Norway, Hywind 1, which was switched on in 2009.

Located 25km off the coast of Peterhead, the Buchan Deep array will be built around five 6MW next-generation versions of the pioneering floating concept, a slimline spar design first developed by the offshore oil industry.

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