The use of Energy storage systems is becoming more widespread around the world due to the coincidental increase in available intermittent renewable energy. The main uses for energy storage are the balancing of supply and demand and increasing the reliability of the energy grid, while also offering other services, such as, cooling and heating for buildings and enabling the creation and use of portable electric devices and electric vehicles.

The development of a country and the well-being of its citizens rely heavily on the availability of electricity. Further needs for the improvements of power quality and availability have been the cause for numerous studies and research efforts. During this expansion of energy availability, renewable energy (RE) sources have become popular. The widespread use of RE has however been delayed by its unreliability and fluctuations in output. This problem has however partly been solved by the implementation of energy storage systems (ESS).