The relevance of this article is based on the aim to reveal public opinion towards the most important aspects of energy security and to compare the data of years 2017 and 2013. The results of empirical surveys (public polls carried out in 2017 and 2013) are used to demonstrate the public attitude to energy security and its main aspects. Three main tendencies can be distinguished: since 2013, society has become better informed, more critical and more supportive at the same time. This resulted in the change of the position of six aspects (three went up and three — down) in the overall hierarchy of the most important energy security aspects.