Quartz: Last year the average renewable mix was 33%, reports Agora Energiewende, a German clean energy think tank. New wind power coming online should push that even higher. "We have a greater share of renewable energy every year,' said Christoph Podewils of Agora. "The power system adapted to this quite nicely. This day shows again that a system with large amounts of renewable energy works fine.' Critics have argued that because of the daily peaks and troughs of renewable energy--as the sun goes in and...