Energy sector, one of the largest sectors globally, plays a crucial role in the world economy. The sector is undergoing a significant transition from fossil fuel-dominance to a rising share of renewable energy in the final energy production and consumption mix. Energy economics involves the use of economic theory and tools to understand and solve the challenges facing energy markets. Developing on a managerial perspective, this course explores the theoretical and empirical perspectives of the economics of energy demand and supply, energy markets, electricity market structures, externalities, regulation, taxation and other government interventions in the energy sector, energy efficiency, decarbonisation and policy instruments affecting energy. This course explores energy-related topics from an individual and industrial stance. The course also discusses the political economy of energy and climate change, energy transition, energy sector developments and trends in South East Europe and the Mediterranean region, regional energy policies, regulations and initiatives like the European Green Deal, the European Climate Law and the EU taxonomy, the Sustainable Development Goals and the UN Agenda to 2030.  The course stimulates science-driven discussion on the energy-growth nexus and on the energy-food-water-environment nexus.