Economic Justification for Equipping LV Network Systems with Energy Storage Units to Enhance Power Supply Parameters

The development of distributed generation and the emergence of new types of devices such as energy storage in the LV grids creates new challenges. On the one hand, it leads to the appearance in the low-voltage grids of phenomena occurring so far in higher-voltage grids, and on the other, it forces the use of more extensive control over its work. Phenomena that cause deterioration of power quality parameters that pose potential threats to devices working in the grid and force the operators to take remedial actions. This can be the extra control of the grid with a number of micro-sources. There is also possibility to mitigate risks of grid violations by energy storage unit cooperating with the grid control system. The aim of the article is to conduct an analysis of the introduction of an energy storage as an alternative to the modernization of the LV grids.