The average amount of electricity consumed in U.S. homes has fallen to levels
last seen more than a decade ago, back when the smartest device in people's
pockets was a Palm pilot and anyone talking about a tablet was probably an
archaeologist or a preacher.
Because of more energy-efficient housing, appliances and gadgets, power usage
is on track to decline in 2013 for the third year in a row, to its lowest point
since 2001, even though our lives are more electrified.
Here's a look at what has changed since the last time consumption was so
low.
Better Homes
In the early 2000s, as energy prices rose, more states adopted or toughened
building codes to force builders to better seal homes so heat or air-conditioned
air doesn't seep out so fast. That means newer homes waste less energy.
Also, insulated windows and other building technologies have dropped in
price, making retrofits of existing homes more affordable. In the wake of the
financial crisis, billions of dollars in Recovery Act funding was directed
toward home-efficiency programs.
Better Gadgets
Big appliances such as refrigerators and air conditioners have gotten more
efficient thanks to federal energy standards that get stricter ever few years as
technology evolves.
A typical room air conditioner -- one of the biggest power hogs in the home
-- uses 20 percent less electricity per hour of full operation than it did in
2001, according to the Association of Home Appliance Manufacturers.
Central air conditioners, refrigerators, dishwashers, water heaters, washing
machines and dryers also have gotten more efficient.
Other devices are using less juice, too. Some 40-inch (1-meter) LED
televisions bought today use 80 percent less power than the cathode ray tube
televisions of the past. Some use just $8 worth of electricity over a year when
used five hours a day -- less than a 60-watt incandescent bulb would
use.
Those incandescent light bulbs are being replaced with compact fluorescent
bulbs and LEDs that use 70 to 80 percent less power. According to the Energy
Department, widespread use of LED bulbs could save output equivalent to that of
44 large power plants by 2027.
The move to mobile also is helping. Desktop computers with big CRT monitors
are being replaced with laptops, tablet computers and smart phones, and these
mobile devices are specifically designed to sip power to prolong battery
life.
It costs $1.36 to power an iPad for a year, compared with $28.21 for a
desktop computer, according to the Electric Power Research Institute.
http://www.cbsnews.com/news/home-electricity-use-in-us-falling-to-2001-levels/
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