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The world's most powerful wind turbine - that can fuel a house with a single turn of its blades - has been launched in UK waters.
Vattenfall confirmed the first of 11 turbines in its European Offshore Wind Deployment Centre (EOWDC) had been put in place off Aberdeen.
Project director Adam Ezzamel said the giant device is so powerful that one single rotation of its blades could provide enough electricity to power an average UK home for a day.
The turbines are each 191 metres tall, with each blade being eight metres long, while the 164-metre rotor has a circumference larger than that of the London Eye.
The Aberdeen Bay development, which will be Scotland's largest offshore wind test and demonstration facility and will trial next generation technology, has been hit by delays - including legal challenges from Donald Trump who claimed the turbines would ruin the views from his golf course at Balmedie.