Construction of phase 1 of the wind farm began in March 2011 and was completed by mid 2013 , being formally inaugurated by the Prime Minister of the United Kingdom , David Cameron on 4 July 2013 .
Construction of phase 1 of the wind farm began in March 2011 and was completed by mid 2013 , being formally opened by the Prime Minister of the United Kingdom , David Cameron , on 4 July 2013 .