Portugal was able to sustain its nation of 10.4 million people completely on renewable energy for a record four whole days.
Four-and-a-half days, or 107 hours, to be more exact
From 6:45am, local time, on May 7 until 5:45pm on May 11, the electricity grid of the Iberian nation was sustained completely by solar, wind, and hydro power, according to data from Portugal’s National Energy Network (REN)
Portugal, who in 2014 had a population of 10.4 million, has a rapidly expanding renewable energy industry.
According to European statistics, Portugal generated only 23 percent of its electricity from solar, wind, and hydro sources in 2013.
Renewable energy made up 30.7 percent of Portugal’s electricity production in 2015.
Bloomberg noted that the price of power on the European Power Exchange even turned negative for a number of 15-minute intervals on May 15.
As The Guardian pointed out, this means that European energy consumers were effectively being paid to use power during those intervals.