This module aims to establish a basic understanding of global patterns of energy use and systems of energy supply, in the context of their sustainability: social, environmental and economic. It is structured so as to familiarize students with the wide range of literature on sustainability, and will develop independent study and analysis skills, Primary Energy, Global Climate change, Environmental impacts of energy use, Energy, resources and reserves, Costing energy, Lifecycle assessment, Transitional technologies (I), Transitional technologies (II), Energy scenarios.