Worldwide greenhouse gas emission is increasing rapidly in twenty-first century, and one of the main reasons of this upsurge is emission from internal combustion engine (ICE) cars. A major step to decrease greenhouse gas emission can be replacing ICE cars with electric vehicles (EV). Though the EVs have notable benefits such as lower GHG emission, their effects can both be good and bad, depending on certain conditions. EVs have impact on the power grid, and associated equipment. In this paper, few key concerns about the grid infrastructure related to EV connections are illustrated, with focus on grid-scale storage systems. Environmental factors and budget considerations for EV charging stations are also discussed, with evaluations of the findings through MATLAB/Simulink simulations.