Dr. Z. K. Morvay, holds a PhD in electrical engineering and has more than 20 years of teaching experience at universities in Croatia, the UK and Thailand. During the early 1990s he worked for a UK energy and environmental consultancy firm, managing projects for international development banks and aid organizations, technical assistance projects for governmental and consultancy projects and feasibility studies for industry. he moved to Thailand to manage the local office just before the economic crisis in South East Asia in 1997. He developed, designed and managed the implementation of a number of energy and environmental management projects for large industrial international companies from Japan, the USA, the UK and Thailand, which often evolved into cost management projects because the theme of the day at that time was cost cutting. In addition, he has practical experience of change management, training needs assessment and support for organizational learning. He is the author of a number of professional papers and of a handbook and manuals on energy and environmental subjects. Currently, he manages a national energy efficiency project in Croatia. Dr. D. D. Gvozdenac is Professor and Chairman of Thermal Engineering at the University of Novi Sad Serbia and Thailand. This is complemented by having spent the last 15 years as an international consultant working on energy projects in Europe, Africa, South East Asia and China. He was also the director of a national energy efficiency agency and a regional energy efficiency centre. He has managed a number of energy audits in industry, solving the problems of energy and utility systems, and has developed best practice and preventive maintenance manuals for industrial equipment and machines. He is the author of a number of professional papers, editor of conference proceedings and author of training manuals. Currently, he is working on the development of a national cogeneration project in Thailand.