Scotland had another extraordinary month" for renewable energy in May, according to environmental groups. Wind turbines alone provided enough electricity to supply 95% of Scottish homes. WWF Scotland analysed renewables data, [and] found that in several parts of Scotland, homes fitted with solar PV panels had enough sunshine to generate more than 100% of the electricity needs of an average household. Wind turbines provided 863,495 MWh of electricity to the National Grid during May, an increase of almost 20% compared to May 2016 when wind energy provided 692,896 MWh. Overall the data showed that wind generated enough output to supply 100% or more of Scottish homes on 11 of the 31 days in May. Dr Sam Gardner, acting director of WWF Scotland, said: "The global energy revolution is unstoppable and continues at pace here in Scotland. "On one day in particular, 15 May, output from turbines generated enough electricity to power 190% of homes or 99% of Scotland's total electricity demand. Month after month, renewables play a vital role in cutting carbon emissions and powering the Scottish economy." Homes with solar PV (photovoltaic) panels generated over 100% of average household electricity needs in Aberdeen, Dumfries, Dundee, Edinburgh, Glasgow, Inverness and Lerwick. Dr Gardner added: "Thanks to a super sunny month, solar was on sizzling form and could have met more than 100% of household electricity demand in towns and cities across Scotland."