Energy Storage Systems are systems that store the energy produced by any energy source and enable it to be used again at the desired place and time. The main purpose of Energy Storage Systems for electrical networks is to transform electrical energy into a desired form to be stored, to store it and to transfer it back to the grid as electrical energy when necessary. Energy Storage Systems are installed with control and management systems to support a reliable operating process. The aim is to provide not only local control, but also coordinated control of equipment throughout the network. Energy Storage Systems can charge and discharge themselves in order to reduce energy costs and control demand load.