FOSTERING ENERGY SECTOR "GREEN" TRANSITION BASED ON RENEWABLE ENERGY IN UKRAINE IN TERMS OF WAR

This article presents the updated state of the renewable energy sector development in the European Union countries and in Ukraine. Due to obligatory international frameworks of the sustainable development and climate change policies introduction in the EU and Ukraine, it is important to track the transition period and its supportive mechanisms. The authors provide a comparison of the tendencies of the renewable energy development and "green" transition with emphasis on solar energy in Ukraine and EU before the full-scale war. The object of the research is the complex of introduced mechanisms that support and promote energy transition to RES in Ukraine taking into consideration the conditions of operationg in full-scale war. It is defined that in Ukraine, during wartime, state regulation of renewable energy development is carried out comprehensively – through legislation, financial instruments, market mechanisms, and advanced technical support for critical infrastructure. The primary research target of the article centers on the need for fostering energy transition based on renewable energy in Ukraine in times of war. Framed within this context, our research analyses how economic policy for the transition to renewable energy in Ukraine is optimized for achieving national goals in increasing renewable energy share in energy production and how the state is coping with rebuilding energy infrastructure on the bases of "green" transition during the full-scale war. It is concluded that the new changes in legislation can be effective when applied with the necessary economic and regulative mechanisms. The example of Ukraine shows how the new challenges and mechanisms to tackle with all risks involved are implied in the country during the war. A profound analysis of legislation changes, new financial mechanisms, energy market instruments modernization, construction of distributed energy system in Ukraine during the war with the simultaneous EU integration is made. It is emphasized that Ukraine has a great potential in transition of its energy sector to renewable energy sector. Its evidence is the statistic data of the rapid growth of installed capacities of renewable energy objects in Ukraine before the full-scale war. That’s why it is obvious to make a prediction that in after war period the recovery of Ukraine will be based on "green" energy as well.