This edited volume explores the triple problem of striking a balance between energy transition, energy security, and energy justice. The book captures their intricate relationships using an interdisciplinary framework that combines economics, political science, and law. It examines theoretical underpinnings and provides comparative case studies across several jurisdictions, drawing on globally renowned academics and practitioners. By placing energy transition within frameworks of geopolitics, socioeconomics, and justice, the volume goes beyond traditional discussions. By highlighting fair access to energy and reasonable transitions in a world that is changing quickly, it helps define sustainable development in practice.