Balancing Renewable Electricity: Thomas Ziesemer

"By 2050 anywhere from 80 to even 100 percent of our electricity will be generated from renewable energy sources." That's the ambitious and controversial claim made in a recent German report co-authored by Dr. Thomas Ziesemer. We ask him to justify this figure and to give his recommendations for renewable energy production, storage, and how to balance supply and demand. http://www.merit.unu.edu/permalink.php?id=731