Energy is one of the critical factors that we must consider using each day to carry out the most basic needs of daily life. However, the use and demand for electricity has gone up so high that we are being forced to be conscious about energy saving electronic devices. We will be surprised to know that a big chunk of money can be saved by using these meters. However, there are certain limitations in the sense that these meters can only show ho much electricity is being consumed. They do not show how much energy can be saved or how can they be saved. This is where improvement is still lacking. This is the area where more focus should be given in order to save electricity.