Technical Functions of Energy Storage Systems in the LV Distribution

The article presents issues related to the use of energy storage in a low-voltage distribution grid with a large number of renewable sources. Technical functions of energy storages were presented - improvement of voltage quality and stabilization of the grid allowing to limit shutdowns of prosumer installations. Thanks to this, it is possible to use the installed renewable sources more effectively without the need to expand the distribution infrastructure. The article presents the concept and operating modes of the storage system based on a pilot project implemented in one of the polish villages in cooperation with grid operator.