Ranking of Energy Structures in EU27 Countries Focusing on the V4 Countries

While EU countries are acting as one and making commitments to achieve global climate targets, there are significant differences in the performance of individual countries and thus their contribution to the targets.The present study aims to establish a ranking based on objective weighting, using relevant environmental and economic indicators, with the main objective of identifying the position of the V4 countries (Czech Republic, Poland, Hungary, Slovakia).The ranking is carried out using the DEA (Data Envelopment Analysis) methodology with 5 different approaches (stepwise envelopment analysis, three different models of the common weights approach, stepwise Pareto efficiency approach).Despite the different weighting schemes of the different models, the country positions are well defined, on the basis of which the Member States can be grouped into five groups.The V4 countries tend to show signs of the least efficient structures, but the weight vectors in each model allow the reasons for this to be identified.