The group’s RWE npower renewables unit said the revised capacity range follows a review at Triton Knoll, which received UK government offshore consent for 1.2GW last July, and will "ensure the efficiencyand utilisation of the site is maximised".

Project Manager Jacob Hain said: “The recent optimisation work is part of a project review to make the site more competitive and more economic in line with government proposals to bring down the cost of offshore wind.”

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