In the monograph , based on the improvement of the methodology of sustainable development in thermal energy enterprises of the Republic of Uzbekistan scientific-theoretical approaches to sustainable development in the digital economy, organizational-economic features of the development of heat energy enterprises in Uzbekistan, regulatory and legal bases for stabilizing the activities of energy industry enterprises, conditions and principles of sustainable development trends, indicators determining sustainable development trends methodological aspects of the system, practical criteria for assessing sustainable development in industrial enterprises, foreign experience of sustainable development of heat energy enterprises, modern trends in the development of the energy industry in the world, effective mechanisms for the development of the energy industry in our country, the current state of the energy industry and heat energy in Uzbekistan, in the sustainable development of heat energy directions for assessing the efficiency of economic activity in the sustainable development of investment processes and thermal energy industry enterprises were analyzed.