The proposed Rampion offshore wind farm, situated off the coast of Sussex, has been the government go-ahead.
The E.ON development, which will cost £2bn in development and construction costs, has a target capacity of 665MW. It aims to generate enough electricity to power approximately 450,000 homes.
The wind farm will be located between 13km and 25km from the shore, and will occupy an area of 167km2.
E.ON will use a site at the Port of Newhaven for the administration and engineering functions of the wind farm.
Energy and Climate Change Secretary Ed Davey said: “We’re driving investment in our energy security, and our plans have made us number one in the world for investment in offshore wind energy.
“This project is great news for Sussex, providing green jobs as well as driving business opportunities right across the country in a sector with a clear roadmap for long-term growth.”