An indirect feedback of energy flexibility is given to the consumer after the period of energy consumption. It is either historic (comparing the energy consumption with the past consumption of the same household), or normative (comparing household energy consumption with that of a group of similar households). Graphically, it is presented in the form of clustered baseline load curve of identical households or average load curve of same household. This extended abstract presents a statistical comparison of methods to formulate reference load curve of residential consumer. An RLC (superposed on MLC) is helpful in measuring energy flexibility of a residential consumer during a flexibility activated day ‘D’.