Greater Gabbard wind farm opens off East coast 7 August 2013 Last updated at 15:59 The second largest offshore wind farm in the world has been officially opened off the Suffolk and Essex coast. The Greater Gabbard wind farm will produce enough energy for 500,000 homes and will provide hundreds of jobs. Energy and Business Minister Michael Fallon said he wanted to see the wind industry "grow even further," calling it an "engine of our economy." The 140-turbine project will double in size once the Galloper wind farm extension is completed in 2017. Greater Gabbard cost £1.3bn to build and is capable of producing 500MW of energy. Mr Fallon said: "The UK leads the world in offshore wind power generation with more capacity than the rest of the world combined, and we want to see this sector grow even further. Greater Gabbard has already brought jobs and wider benefit to the local community, with hundreds of people employed on site. This sector is an engine of our economy. By the end of this decade, tens of thousands of additional jobs could be created in the supply-chain for offshore wind throughout the UK. The Department of Energy and Climate Change said offshore wind has the potential to provide enough power for 11 million homes in the UK by the end of this decade, creating 30,000 jobs and contributing £7bn to the economy. The world's largest operating offshore wind farm - the London Array - was opened by the Prime Minister last month, with 175 turbines.