For all practical purposes it is impossible to achieve Boulder's goal of being 100% renewable (i.e. carbon free) by 2030 if we rely on wind and solar. This is because both of these sources are intermittent and require either gas back-ups or very expensive lithium batteries. Come learn about how advanced nuclear reactors could be our way out of this energy dilemma. We are talking about Molten Salt Reactors (MSRs), and they are coming.