Mark Nelson

About

Mark Nelson is the founder and Managing Director of Radiant Energy Group, a Chicago-based consultancy that provides data-driven insights, strategic roadmaps, and advisory services to industry leaders, governments, and environmental nonprofits on navigating the global energy transition—with a strong emphasis on nuclear energy's critical role in delivering abundant, reliable, low-carbon power amid rising demands from AI and electrification. A University of Cambridge M.Phil graduate in nuclear engineering from Oklahoma, Nelson previously served as a senior energy analyst at Environmental Progress and a fellow at The Breakthrough Institute, honing his expertise in debunking anti-nuclear myths, analyzing plant closures like Germany's costly phase-out, and highlighting successes in countries scaling atomic power. A sought-after speaker on podcasts like Titans of Nuclear and Power Hungry, media outlets including CNBC, and international forums, he passionately advocates for restarting idled reactors, extending existing fleets, and embracing new builds to combat climate change while critiquing renewable intermittency and transmission bottlenecks—positioning nuclear as indispensable for a high-energy, prosperous future.