Introduction. European countries are at different stages of transition to a new energy system due to different levels of energy dependence, geographical conditions, and priorities of national administration. The use of information technology and innovative developments in the energy field allows for reducing energy production costs, improving resource use efficiency, reducing environmental impact, and ensuring energy security. Modern energy is reaching a new qualitative level due to technology transfer and government policy. Such an energy transition in the industry requires time, unfolding globalization processes, implementing sustainable development strategy and solving greening problems.  Aim and tasks. The aim of the study is to assess the level of the economic base of technology transfer in the creation and functioning of a new energy system based on the principles of environmental safety of modern enterprises in EU countries. Results. The theoretical model is considered, which explains the essence and factors in the implementation of the new energy system of production enterprises in the cross-section of the EU countries. The ranking of European countries is given based on the calculation of the use of final electricity consumption per dollar per capita and one percent of renewable energy consumption minus the tax burden. Thus, some countries already have significant indicators that indicate the effectiveness of the transition to a new energy structure of their national enterprises. And such results do not directly depend on the share of the use of renewable energy sources and the reduction of the use of coal. But the share of more than 60% of the use of renewable energy and the significant tax burden placed on the final household consumers of electricity are general signs of the implementation of such a transition. Enterprises use such a transition mechanism more effectively in EU countries, where more than 60%. In economic terms, such transitions of enterprises are carried out at the expense of the lion's share of the tax burden on electricity use by end consumers – households. Conclusions. The study of the economic basis of technology transfer in the creation and functioning of a new energy system based on the principles of environmental safety of modern enterprises in EU countries is of great importance for improving energy efficiency and achieving environmental safety in the region as a whole. The research will be useful for government bodies that are engaged in shaping energy policy, regulating the energy sector, and ensuring environmental safety.