The article presents calculations of energy costs when carrying out major renovations of a building. Based on the obtained values, the structure of fuel and energy resources expenditures by subgroups of repair and construction work was formed. The presented research results are based on the calculation and comparison of the obtained energy consumption values ​​in proportional units - kilograms of standard fuel. As a result of the study, the highest energy consumption was established, which is accounted for by the consumption of liquid fuel in comparison with electricity, which is due to the specifics of the machines and mechanisms used (truck crane, truck, etc.), as well as the chosen technology of repair and construction work. In order to account for and minimize energy costs during the period of major repairs, it is also proposed to monitor the consumption of fuel and energy resources.

Keywords: diversification of management, production diversification, financial and economic purposes of a diversification, technological purposes of ensuring flexibility of production

In the context of the development of energy-efficient construction production, the issue of eliminating the irrational consumption of fuel and energy resources and regulating their consumption in the course of construction and installation work, including the demolition of an object, has been updated. The article discusses the features of the production of dismantling works in the process of renovation of residential buildings, taking into account the consumption of fuel and energy resources by the main consumers - means of mechanization. On the example of a five-story brick residential building, the total energy consumption during demolition by the method of mechanical collapse and element-by-element disassembly with the preservation of suitable materials was determined, and the relationship between these two options was established. The calculations showed that the consumption of fuel and energy resources during the element-by-element dismantling of all building structures with the preservation of suitable materials for brick heated buildings is 55.3% less compared to dismantling the building by the collapse method; in monetary terms, the energy costs for option 1 exceed the costs for option 2 by 1.55 times.

Keywords: fuel and energy resources, renovation, demolition, dismantling, energy efficiency, building production, elemental dismantling, mechanical collapse