Energy Secretary Ed Davey said: "This deal is excellent news for the people of Hull and the Humber, the UK, the wind industry, and our energy security.
"We are attracting investment by backing enterprise with better infrastructure and lower taxes.
"As well as helping to keep the lights on and putting more than 1,000 people in work, this deal means we will help to keep consumer bills down as we invest in home-grown green energy and reduce our reliance on foreign imports."
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The company said its role was not to decide what was or was not compliant with local building regulations.