
On a mild Sunday afternoon, California set a historic milestone in the quest for clean energy. The sun was shining, the wind was blowing and on May 8th, the state produced enough renewable electricity to meet 103% of consumer demand. That broke a record set a week earlier of 99.9%.
Energy experts say the falling records are a sign of the remarkable progress that renewable energy has made. But that doesn't mean fossil fuels were out of the picture.