On October 1-2, the 4th International Scientific Practical Conference "Architecture: Aesthetics + Ecology + Economics " was held at the POLTAVA NATIONAL TECHNICAL YURI KONDRATYUK UNIVERSITY. Within the framework of Jean Monnet Erasmus + project " The challenges of energy efficiency: cooperation of Ukraine with the EU ", the Associate Professor of the Department of Enterprise Economics and Human Resourse Management Byba Volodymyr presented his report . The presentation was devoted to the issues of the European model of energy-efficient economy. Vigorous debates emerged at the conference. Besides, both the students and the scientists of PoltNTU discussed the burning problems of the European trends