The International Energy Technologies Conference, ENTECH '13, will take place at a time when energy is of vital importance to the societies. The future of energy has to be sustainable in terms of environment and climate. Crucial changes are to be inevitably happen on many different levels. The challenges encompass many layers of complexity, from natural science research and engineering to social sciences, systems solution and actions and agreements at the global political level. This question of the future of global energy supply has to be addressed with objectivity and competence, without ideological bias. Only an interdisciplinary approach would have the potential to optimize the necessary cooperation and communication in energy research, development and the support to industrial innovation.