Dr. Varun Sivaram is a physicist, clean energy executive, and former U.S. diplomat with experience spanning the corporate, policy, and academic sectors. He has served as Chief Strategy and Innovation Officer at Ørsted, a leading renewable energy company with the world’s largest offshore wind energy portfolio, and previously served in the U.S. Biden-Harris administration as the managing director for clean energy and senior advisor to Secretary John Kerry, the US Special Presidential Envoy for Climate, where he created the First Movers Coalition. He has also served as Chief Technology Officer of ReNew Power (NASDAQ:RNW), a multibillion-dollar renewable-energy firm that is India's largest; on the faculty of Columbia University and Georgetown University; as director of the energy program at the Council on Foreign Relations; and as senior energy advisor to the Los Angeles Mayor and New York Governor. TIME Magazine named him to its TIME 100 Next list of the next hundred most influential people in the world, and MIT Technology Review named him one of the top 35 innovators under 35. His books include "Taming the Sun: Innovations to Harness Solar Energy and Power the Planet," "Energizing America: A Roadmap to Launch a National Energy Innovation Mission," and "Digital Decarbonization: Promoting Digital Innovations to Advance Clean Energy Systems." His TED Talk on India's clean energy transition has been viewed more than 1.5 million times. A Rhodes and Truman Scholar, he holds a Ph.D. in condensed matter physics from Oxford University and undergraduate degrees from Stanford University.