“…A study [15] shows a significant relationship between the diffusion of foreign technologies and energy efficiency performance in a particular country. Within the framework of the EU Erasmus+ project [16], the experience of developed European countries shows that the focus on energy efficiency allowed them to become leaders in the production and export of innovative technologies. For example, the European Environment Agency has developed a reference docu-ment [17] containing information on the best available energy efficiency technologies for the following processes: combustion, heat recovery, cogeneration, power supply, heating, ventilation, air conditioning, drying, separation, concentration and many other process operations used in more than thirty industries.…”