The Joint Graduate School of Energy and Environment, King Mongkut’s University of Technology Thonburi has the founding philosophy to be a national center of excellence for research and training in energy technology. It aims to produce high caliber human resources for science and technology related to energy and environment as a result of the impact of the production and utilization of energy. Doctor of Philosophy Program in Energy Technology intended to produce qualified personnel in research and technology development of new energy. It focusses on research so that research studies will be analyzed and synthesized with the utmost aim of creating or developing a new body of knowledge to solve the problem of energy crisis and the release of greenhouse gases locally and internationally. It also aims at producing high quality research studies with international standard. This philosophy can properly suit its determination to produce high quality personnel with professional ethics who are responsible for the society. The graduates can analyze and create a new body of knowledge for solving problems related to energy and its impact from the production and the utilization of energy locally and internationally to fulfill the needs for human resources. It is expected that the graduates can be the think tank of government and the private sector to drive Thailand towards a knowledge-based society in the near future.