On windy days, wind power generation has surpassed all other electricity sources in Spain; On 21 November 2015 at 4:50 am, 70.4% of the electricity consumed on the Spanish Peninsula was covered with wind power energy. On 6 February 2013, wind power achieved an earlier record in electricity production, reaching an instantaneous peak of 17,056 MW and an hourly production of 16,918 MWh. In November 2011 a capacity peak of 59% of power demand being generated by wind power was reached. Power peaks of 14.960 GW were reached in November 2010, and in November 2009, a wind storm caused wind farms to produce a peak of 53% of total electricity demand (11.546 GW).