In the Institute of Energy Systems and Environment (IESE) approximately 20 different level professionals (including 5 professors) are working. The average age of IESE teachers is 39 years. Most of the teachers have enhanced their knowledge also in foreign universities. Our teachers are very different people, but they have two things in common - their trust to IESE ideas and their professionalism. We also invite guest lecturers from the organizations and enterprises of Latvia as well as foreign experts from Europe and the USA.