In a nutshell, the volume offers insights into regional regulations, public policies and local practices on the use of clean energy. It looks first at the EU commitment and its initiatives providing some examples from the Member States. Furthermore, it offers a comparative perspective and discusses the different approaches to the energy transition from Latin America, China, Africa and Australia. It covers a wide range of topics such as the EU renewable energy policies, Green Deal and regionalisation, energy auctions in the EU, environment in contemporary constitutionalism, Human Rights considerations, the Scandinavian perspective, practical examples from Italy and Spain. Moreover, it also considers the global context, looking at State and Market in China’s coal-to-gas transition, tendencies of legal regulation in the sphere of renewable energy in Russia, the energy transition in Latin-American countries, regional approach to the energy transition and electricity access initiatives in Sub-Saharan Africa, and transnationalism and the regional approach to the energy transition in Australia. The systematisation that this book offers and the exchange of good practices and experiences are useful tools for the key players to seriously engage with a just and sustainable energy transition. The proposed book is a reference and study material for academics and students, but also for the policy makers, officials and practitioners dealing with the energy transition. It provides some answers, potential solutions and alternatives to the main problems that the energy sector is facing worldwide.