Keyword: «standard deviation»

The purpose of the article is to conduct a study of the variability (volatility) of non-current assets of PJSC Gazprom based on the method of variance analysis for the period from 1998 to 2018. The authors describe in detail the method of variance analysis and estimate the absolute and relative volatility of non-current assets elements on the basis of corporate financial reporting. Based on the results of the methodology testing, the most volatile and least volatile elements of non-current assets are identified. Hence, the authors draw conclusions about the financial policy of managing non-current assets of the company.

The article is devoted to the study of the features of the operation of a photovoltaic installation at low temperatures in the North-Eastern part of Russia. The introduction of solar power facilities in hybrid opera-tion with facilities of traditional energy sources in the territory of the North-Eastern part of Russia is one of the possible solutions to achieve costly fuel savings in power generation facilities. The electric power regularities and methods of processing experimental data in the MatLab environment are applied and the stages of field research in the field of solar energy are described. The indicators of the influence of extremely low ambient temperatures on the operating parameters of a photovoltaic installation have been obtained.