Abstract: Due to the advancement and development of renewable energy, a significant portion of the future market will be related to clean energy. Because of the variable and infrequent nature of these sources, there will be fluctuations in energy production. These massive electricity storage problems have shaped today’s power system technology. The existence of peak-load consumption creates many annual costs for the establishment of new power plant units to supply peak loads, which can be improved by using storage systems. The most common methods of storing electrical energy are pumped-storage hydroelectricity (PSH), compressed air, heat, hydrogen gas, and batteries. The main idea of an energy storage system is to store energy during off-peak hours (electricity is cheap) and use it during peak-load hours (electricity is expensive). One of the types of systems is battery-powered, discussed in this chapter, in the section on simulation and setting of network parameters.