Nat is the CEO of Advanced Energy Economy and CEO of Fairtide Renew. Advanced Energy Economy provides education about and advocacy for all of the technology innovations that make powering our industrialized economies more affordable, clean, and secure. Fairtide Renew invests in helping traditional industries adopt new technologies that create sustainable value for customers, shareholders, and societies, which today includes transforming electric utilities to use 100% clean energy, powering homes and small businesses with solar electricity, electrifying transportation, and turning garbage into valuable recycled materials. Nat is the chairman emeritus of the board of directors of the national Solar Energy Industries Association and lecturer at the Institute for Sustainable Energy at Northwestern University. An experienced entrepreneur, Nat was president and co-founder of SunRun (NASDAQ: RUN), CEO of Clean Power Finance as well as Spruce Finance, president of Acro Energy Technologies, and creator of the climate trading business for Virtu Financial. Nat is a veteran of the war in Afghanistan, where he served in the U.S. Special Forces and was awarded the Bronze Star Medal. President Obama named Nat a “Champion of Change.” He has a BS from Northwestern University and an MBA from Rice University.