BBC: One of the largest offshore wind farms in the world has been approved to be built off the coast of north Wales. The 250 turbines of Gwynt y Môr offshore wind farm will be built eight miles off the coast, 10 miles away from Llandudno, Conwy. Gwynt y Môr, combined with three other nearby wind farms, will provide enough green electricity to power the equivalent of 680,000 homes. It has been approved by the Department of Energy and Climate Change (DECC). The wind farm …