The transformation of the United States’ energy system provides unprecedented opportunities for leadership in innovation, economic growth, and decarbonization, but it will not be without significant challenges. The National Academies will host a forum to address critical issues arising from ongoing growth and changes in the energy system to meet increasing energy demands and respond to climate change. The forum will convene an interdisciplinary set of experts to provide a strategic, rapid response capability for grappling with the dynamic nature of energy system transitions and serve as a venue for independent, high-quality advising on the future of nation’s energy systems.