Impacts of energy storage on the future power system

The electrical energy storage systems serve many applications to the power system like economically meeting peak loads, quickly providing spinning reserve, improving power quality and stability, and maintaining reliability and security. The rapidly increasing integration of renewable energy sources into the grid is driving greater attention towards electrical energy storage systems which are capable of stabilizing the output from renewable energy sources. The application of electrical energy storage systems will also defer the installation of new transmission lines. With the development of advanced energy storage technologies, the electrical energy storage systems are making the future power system more reliable, efficient and economical. This paper presents various energy storage technologies currently used, their applications and the role they are going to play in the future power system.