The article examines the current state of state policy in the field of energy saving and energy efficiency, prospects for further implementation of energy-saving technologies, taking into account national and world experience. Attention is focused on the fact that renewable energy sources can be considered as basic elements of energy efficiency of separate sectors of the economy and energy independence of the state as a whole. This is facilitated by the constant growth of humanity's energy needs, the lack of fossil fuel and energy resources, their depletion, as well as the introduction of modern trends in the development of industries. The state policy of Ukraine for the coming years, enshrined in a number of legislative and regulatory acts, envisages comprehensive support and development of the sphere of energy conservation, reduction of harmful anthropogenic impact on ecology, reduction of energy intensity of products. Ukraine has significant potential for energy saving and is gradually increasing efforts to improve the energy efficiency of separate industry of the economy and the energy independence of the state as a whole. In particular, in the field of architecture and urban planning, measures to increase the energy efficiency of buildings and constructions, through the use of renewable energy sources and the creation and implementation of modern automatic control systems for engineering subsystems in general life support systems, seem quite promising. In order to inherit the considerable previous scientific experience, the latest research and publications on this topic were analyzed. Prospective renewable energy sources, methods for determining their energy potential, regions and methods of practical use in the field of increasing the energy efficiency of buildings and constructions, as well as options for improving existing and creating new modern automatic control systems have been identified. Ways of further scientific research are planned.