The Greater Gabbard project was commissioned in September 2012, and is a 504 MW wind farm on sandbanks 23 kilometres off the coast of Suffolk in England at a cost of £1.5 billion. Onshore construction activities commenced in early July 2008 at Sizewell. It was completed on 7 September 2012 with all of the Siemens SWT3.6–107 turbines connected.