Approximately
one-third of a home's electrical use is spent on lighting.
A standard incandescent bulb uses only 10% of the power
consumed to create light, the rest is burned off as heat
waste. Incandescent literally means "to glow
with intense heat", so for every $1.00 spent on light,
$0.10 is actual light/cost an $0.90 is heat!. But you
have the choice to use more energy efficient bulbs like
the compact florescent lamps (CFLs). They use only about
25 percent of the energy of incandescent bulbs to deliver
the same amount of light, and last 10 to 13 times longer.
This chart compares the costs of a single 75¢ 75-watt incandescent
bulb to a $20.00 18-watt CFL and illustrates how these savings
add up:
| |
Incandescent |
CFL |
| Watts Consumed |
75W |
18W |
| Rated Life |
750 hours |
10,000 hours |
| # of bulbs used in 10,000 hours |
13 |
1 |
| kWh used in 10,000 hours |
750 kWh |
180 kWh |
| Cost per kWh (average) |
$0.083 |
$0.083 |
| Electricity cost per 10,000 hours |
$62.25 |
$14.94 |
| Bulb cost per 10,000 hours |
$9.75 |
$20.00 |
| TOTAL COST PER 10,000 HOURS: |
$72.00 |
$34.94 |
Think about that: if you replaced just 4 commonly used bulbs
in your house that is an extra saving of over $100.00 per
year! Wow, fatten your wallet and help the environment by
using less energy. Essentially you are getting paid (by
conventional standards) to be environmentally conscious.
It's win win and you get to make a difference.
There's An Environmental Payday,
Too
• The average CFL lasts 10,000 hours, more than 13 times
longer than incandescents. This reduces natural resource
consumption and keeps more bulbs out of landfills. Americans
throw away over a billion incandescents each year. CFLs
could reduce this number to 77 million.
• CFLs prevent pollution. Over their lifetimes, they'll
prevent the release of between 1,000 and 2,000 lbs of
carbon dioxide from coal-fired power plants; the production
of approximately 25 milligrams of deadly plutonium from
nuclear plants; or the use of 1.25 barrels of oil. Read
more at Gaiam
You've probably heard
about how efficient compact fluorescent light bulbs are
compared to regular incandescent bulbs. Another efficient
lighting option you may not have heard about is low voltage
direct current lighting. DC lighting uses much less power
than standard AC bulbs. Read
more about energy efficient lighting at Gaiam 
This look at the economic
and environmental advantages of energy efficient lighting
examines the appreciable savings you can realize by using
compact fluorescent light bulbs at home. Additionally,
you'll learn tips to help maximize your investment in
this technology and achieve the most cost-effective results.
Read
more at Gaiam