In December 2015 it produced 369 GWh, a monthly capacity factor of 78.9%. It produced 2.5 TWh in 2015.
The wind farm started producing electricity at the end of October 2012. All 175 turbines of phase 1 were confirmed fully operational on 8 April 2013, and the wind farm was formally inaugurated by the Prime minister David Cameron on 4 July 2013.