http://www.theguardian.com/environment/2015/may/25/weatherwatch-wind-turbines-research
Wind turbines are becoming a familiar feature in the British landscape, and last year nearly 10% of the UK's electricity demand was met by wind power (compared with 1.5% in 2007). The UK is considered to be one of the best locations in the world for wind power, but what happens when the wind fails to blow?