Diversification as a tool to increase energy security

Abstract The aim of this paper is to highlight the importance of diversification in the gas sector in Slovakia. We focus on defining the category of diversification, from the views we have received from foreign and domestic literature. The aim is to introduce individual approaches to the perception of energy security in its complexity. Its security affects all economic subsets at both transnational and national levels. Given the high capital intensity, it has become a problem not only for economic clusters but also for individual states. On a concrete example, we calculated the "price" of increasing security in the household sector under SR conditions.