The electricity grid system is a complex system in which power supply and power demand must be balanced at any
given point of time. Energy storage plays a key role in balancing and creating a more flexible and reliable grid system. There are
different methods to store energy in an effective & efficient way. Emerging storage facilities will allow us to store energy
generated from renewable energy resources such as wind & solar on shorter time frames to smooth variability, and on longer
cycles to replace ever more fossil fuel. By electrifying storage facilities with energy generated from renewable energy sources, we
can reduce our greenhouse gas emissions and our major dependency on fossil fuels. This paper deals with different mechanisms
of energy storage from capacitor to traction batteries
