Critics of renewables say that renewables cannot provide 100% of our electricity because they are intermittent, i.e. the sun doesn't shine and the wind doesn't blow all the time. The result, they say, will be blackouts.
Germany has more wind and solar in its electricity than the US and far fewer blackout minutes, and now a video has been released in English about research at the University of Kassel (Germany) showing what a 100% renewable future may look like - by mid-century. See for yourself.