(Phys.org) —"A great win for Kent, a great win for renewable energy, a great win for Britain," said Prime minister David Cameron in seeing the London Array this month officially become the world's largest offshore wind farm. Located in the Outer Thames Estuary (around 20km off the coasts of Kent and Essex on a 100km site) the wind farm's size outdoes others. With its 450 kilometers of offshore cabling and 175 Siemens 3.6MW turbines rising out of the Thames estuary, this project is said to be a major milestone. The wind farm carries a 630 MW capacity, enough to power 470,000—nearly half a million—homes with electricity per year. The Array has been operational since April, but was officially opened this month in a ceremony at Margate, Kent.
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