Refrigerator: ”Is your refrigerator running " may be a common joke, however, the amount of energy consumption of this appliance is not a joke. This appliance runs 24 hours a day, 365 days a year, and is one of the biggest drainers of energy in the home. Thanks to modern Energy Star-rated refrigerators, the common wattage use of today's refrigerator is between 35, 000 – 60,000 watts.