Net Metering is a very important Electricity Policy for the promotion of Distributed Electricity Production from Renewable Energy Sources especially Solar Energy.All consumer establishments connected to the power grid have an electricity meter installed which measure the amount of power consumed during a month in Kilowatt Hours (KwH) which is known as one unit.The power utility compiles the data for power consumption during 1 month and sends a bill which is usually the number of KwH multiplied by the retail electricity rate which can vary widely from 10c/KwH to around 35c/KwH depending on the geography.