ТЕОРЕТИКО-АНАЛІТИЧНІ ЗАСАДИ ІНФРАСТРУКТУРНОГО РОЗВИТКУ ЕНЕРГЕТИЧНОГО СЕКТОРУ

The energy sector of Ukraine is a key element of economic development, national security and international competitiveness of the state. In the context of global energy transformations, Ukraine's integration into the European energy market and the need to restore critical infrastructure after the devastating consequences of the war, the problem of infrastructural development of energy is becoming especially relevant. The article is aimed at highlighting the results of the study of the theoretical and analytical foundations of the infrastructural development of the energy sector of Ukraine under martial law. Methods used in the study: detailing and generalization, grouping, systematization, indicator, tabular method, etc. The hypothesis of the study was the assumption that based on the results of the study of the theoretical and analytical foundations of the infrastructure development of the energy sector of Ukraine, the differences inherent in the conditions of martial law will be identified. Summary of the main material: the energy sector in the national economy of Ukraine plays a strategic role and is of security importance, and the main task of the Energy Security Strategy is the successful integration of Ukraine into the EU, the synchronization of Ukraine's energy systems and markets with European ones and their sustainable development. The classification of energy sector enterprises as critical infrastructure is of fundamental importance from the point of view of the national economy, but generalizationtheoretical approaches to the essence of critical (energy) infrastructure indicates an ambiguous interpretation of this definition. The article expands the system of indicators for assessing the consequences of the impact of modern threats on the functioning of the critical infrastructure of the energy sector of Ukraine by adding another one - the level of energy security. in the context of analytical support for the infrastructure development of the energy sector, the use of the Energy Transparency Index, which was introduced in Ukraine for a comprehensive assessment of the availability and quality of information in the energy sector, deserves attention. The system of indicators for assessing the infrastructural development of the energy sector of Ukraine has been supplemented by another indicator - the level of shadow consumption of energy sources. The originality and practical significance of the study lies in the justification of the expediency of using indicators and indicators that reflect the features of the infrastructural development of the energy sector of Ukraine under martial law. Conclusions. The infrastructural development of the energy sector of Ukraine under martial law has fundamental differences from the development in peacetime, as it acquires existential importance. Further research consists in the development of mechanisms for adapting critical energy infrastructure to the conditions of the war and post-war period, the introduction of the best international practices in reforming the energy infrastructure of Ukraine, and the assessment of the economic feasibility of introducing new technologies in the field of renewable energy.