Turning on a space heater to keep an area warm. Using a spa or hot tub with an electric heater that heats the water. Using an upright freezer purchased before 1985. New upright freezers and chest type freezers use less energy. Using a refrigerator purchased before 1985.
New refrigerators use much less electricity.
Buying Energy Star appliances to get the most energy-efficient products. Replacing incandescent lights used for five or six hours each day with lower wattage compact fluorescent lamps. Lifestyle Habits Holding the refrigerator door open for prolonged periods of time. Leaving unused appliances turned on. Sleeping on a water bed.