Looking at energy intensity of the regional economy using the indicator kWh per 1,000 EUR GDP.
The EU-28 average considering only final energy consumption lies below all of the presented Central and Eastern European regions (880 kWh/ 1,000 EUR), which is in line with the finding that Eastern European countries are generally above the EU average due to a lack of investments in the past. Although energy intensity is recently decreasing at a higher rate than in member states of western Europe.
The full report on Energy Efficiency Situation of Central and Eastern European Regions can be downloaded here: https://ceesen.org/?dlm_download=energy-efficiency-situation-of-central-and-eastern-european-regions