Energy Tips
(Sources: May 2002 Consumer Reports Cover Story, “50 Ways to Save”,
June 2001 Consumer Reports Your Money Column, “Power to the People”)
• Use compact fluorescent bulbs (except with dimmer switches, electronic photocell on/off
switches, and electric timers) for all lights that run more than four hours a day. They cost about $ 10
each but can provide as much light as a 100-watt incandescent bulb while using only about 25 to 30
watts. We calculate that using electricity at the average rate of 8.4 cents a kilowatt hour, an
incandescent bulb will cost $ 84 plus about $ 5 for 10 replacements. By contrast, a compact
fluorescent will cost only about $ 35 in total.
• Don't rinse your dishes before placing them in the diswasher. Unless you have been dining on
Krazy Glue, the gunk should come off without prewashing, saving both water and energy costs.
• Right-size your cooking. When baking a potato or other small portions, use a toaster oven or
microwave oven instead of a conventional oven. When using the stovetop, match the size of the pot
to the burner size. Doing so will keep heat from escaping into the atmosphere, boosting your
energy expense.
• Put a lid on it. Covering a pot brings the water to a boil more quickly, also saving energy.
• Don't get your water piping hot. Set your hot-water-heater thermostat at 120 degrees F (or "low").
That's hot enough for most needs - including dishwashers, which generally have booster heaters. If
your hot-water heater feels warm to the touch, wrap it in an insulating blanket to limit energy loss.
Use warm- or cold-water settings for the laundry, and wash only when you have full loads.
• Turn off computers and TVs when they're not in use. Running a computer and its monitor 24
hours a day, 365 days a year, uses some 1,800 kilowatt hours. At 8.4 cents each, that adds up to
about $ 150 annually. Putting the central processing unit and the monitor on sleep mode will save
about three-quarters of that expense. A 36-inch color TV may use 180 watts. Leaving it on eight
hours a day costs about $ 44 a year.
• Seal leaky ducts. Hot, humid air gets drawn into your home through ductwork leaks, dissipating
the cool air your air conditioner cranks out. Because as much as 40 percent of what you spend to
cool or heat your home can be lost through problematic ducts, it pays to seal and insulate them
carefully, including any that pass through unheated or un-air-conditioned garages, basements,
attics, or crawl spaces. You can also keep cool air indoors by caulking or adding weather stripping
around doors and windows.
• Buy energy-efficient appliances. Most new major home appliances are required to carry an
Energy Guide tag that spells out the projected annual cost of operation in terms of electricity
consumed. If you are in the market for an air conditioner, refrigerator, dishwasher, or clothes
washer, it pays to choose an energy-efficient model. A refrigerator that consumes a thrifty 500
kilowatt-hours of electricity each year will cost 40 percent less to operate over the course of a year
than an inefficient model that uses 830 kilowatt-hours.
• Limit your use of appliances that throw off heat. You can augment the electricity-saving
potential of your energy-efficient appliances by running your oven, dishwasher, or clothes dryer
during the cooler hours of the day, when your air conditioner doesn't have to work overtime to
overcome the heat they generate. And, of course set your air-conditioner thermostat higher. For
each degree you raise it, you can cut your cooling bills by 3 percent.
• Add insulation to your attic. Attics trap hot air, driving up the temperature in the rooms below and
pumping up cooling costs. For homes in warm-weather cities like Miami or Los Angeles, the U.S.
Department of Energy recommends insulating with the equivalent of a blanket of fiberglass about
12 inches thick.