Electric power systems are gradually maturing in the operational and management architecture. The eventual goal of the system operators is to provide more reliable and high-quality energy services in a cost-effective and environmental framework. To that end, new applications and technologies should be innovated and integrated into the system infrastructure sustainably. Energy storage system (ESS) is an essential part of the power system. Various types of ESS technologies, the associated characteristics and benefits are overviewed in this section.
