One of the directions of Technosphere Safety is to find ways of rational management of energy resources during the operational stage of the project. The studies of domestic and foreign sources show that the achievements in the field of resource conversation are the priorities of state and business under modern economic conditions. A special attention should be given to energy saving technologies that allow to solve a wide range of issues concerning the Russian economy and related to poor energy efficiency of many businesses. In the article content of the terms «energy efficiency» and «energy saving» is analyzed; the energy component of the modern economy is evaluated; the key issues of Technosphere Safety on the level of development of modern building technologies are identified; the importance of the transition to energy-efficient technologies in the building design phase in accordance with the principles of the international standard ISO 26000 «Guidance on social responsibility» by the development of project documentation of the investment project that is positioned on the status of public importance for the priority development areas; the variants of the energy efficiency activities are presented.