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."
More top news
Ex Army chief calls on Government to "think the previously unthinkable" and consider sending ground troops to combat Islamic State.
Rio Ferdinand has described being "overwhelmed" by the support he received from football fans after his wife died.
The world's oldest-known person, Jeralean Talley, celebrated her 116th birthday with family and friends at a restaurant in Michigan.