The Institute for European Energy and Climate Policy (IEECP) has published a study assessing energy vulnerability across 57 regions in eight Eastern European countries. Using a composite indicator based on data from 2015 to 2024, the research analyses regional sensitivity to energy-related challenges and provides a comparative picture of vulnerability across the study area.

The analysis examines the relationship between vulnerability levels, rurality and household expenditure on energy services. According to the findings, Eastern European countries display significant differences between regions, with Bulgaria recording the highest level of vulnerability among the countries assessed. The results were further examined through interviews with experts to complement the quantitative assessment and improve understanding of regional conditions.