In India all power hungry appliances especially Air Conditioners and Refrigerators are star rated based on their power consumption. The more stars it has, the lesser will be the power consumption. So if we go for a five star rated appliance the consumption of electricity will be at the optimum level. I think this is a very practical method to save on electricity bills. It is very much beneficial for Air Conditioners and Refrigerators as they consume a lot of electricity. Nowadays almost all electronic appliances have star rating with it. Do you buy electronic appliances based on star ratings? Is the same system prevails in other parts of the world too?