2. Index
Future Scope of Energy Efficiency
Advantages
Disadvantages
Techniques for reducing energy
Energy Star
Black Google
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3. Definition
Energy efficiency is "using less energy to provide the same
service".
Energy efficiency is not energy conservation.
Energy conservation is reducing or going without a service to
save energy.
For example: Turning off a light is energy conservation.
Replacing an incandescent lamp with a compact fluorescent
lamp (which uses much less energy to produce the same
amount of light) is energy efficiency.
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4. FUTURE SCOPE OF ENERGY
EFFICIENCY
Although energy efficiency is now a primary concern in the World, less
blessed with the same abundance of natural resources. However, the
every countries has been readjusting its thinking about energy use as
well as the pollution of the environment for decades now.
Although it goes beyond just the issue of green computing, an early
program still going strong is Energy Star.
Subsequent to its implementation in the US, the program was adopted
by Australia, Canada, Japan, New Zealand, Taiwan, and the European
Union.
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5. Advantages of Energy Efficiency
Saving energy and resources saves money.
Conserving resources means less energy is required to
produce , use , and dispose of products.
Green computing even includes changing government
policy to encourage recycling and lowering energy use by
individuals and businesses.
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6. Reduce the risk existing in the laptops such as chemical
known to cause cancer , never damage and immune
reactions in humans.
Energy efficiency reduce greenhouse gas emissions and
contribute to a healthier planet.
Because the use of energy efficiency we breathe healthy ,
fresh , and clean air.
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7. Disadvantages of Energy Efficiency
Green Computing Could Actually Quite
Costly.
Some Computers That Are Green May Be
Considerably Underpowered .
Rapid Technology Change .
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8. Techniques for reducing energy
usage for Green Computing
Turn Off Equipment When Not In Use.
Monitor Sleep Mode.
Computer Power Savings Modes:
Management of power consumption is a standard yet often
overlooked, feature of most computers and operating
systems on the market today.
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9. System Standby Mode :
System standby is one of the most effective power saving
features. After a preset idling period, a computer will
shutdown most of its components significantly reducing
power use.
Hibernate Mode :
The hibernate mode goes one step further than standby mode by
completely powering off the computer.
Invoking the hibernate mode causes the memory state to be saved onto
the hard disk before powering down. When coming out of hibernate
mode, the computer restores the memory state, returning the
computer to its pre-hibernate state.
A desktop computer will consume approximately 3 watts in hibernate
mode vs. 5 watts for standby.
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10. Hard Disk Sleep Mode :
A computer can place its hard disk drives in a low power
sleep mode when they are idle. Hard disk drives on
desktop computers can use 10 watts or more, when in
use while notebook computer drives use less but energy
savings have the benefit of extending battery charge life.
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11. Energy Star
The first step toward the green computing
movement was the commencement of the
Energy Star program back in 1992.
Energy Star served as a voluntary label
awarded to computing products that
succeeded in minimizing use of energy while maximizing
efficiency.
Energy Star applied to products like computer monitors, television
sets and temperature control devices like refrigerators, air
conditioners, and similar items.
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12. Devices carrying the Energy Star service mark, such as computer
products and peripherals, kitchen appliances and other products,
generally use 20-30% less energy than required by standard products.
Products cannot use the service mark unless they are Qualified for
Energy Star service mark.
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14. How to save energy while
browsing on the Internet??
Blackle is a website powered by Google Custom Search and created by
Heap Media, which aims to save energy by displaying a black
background and using grayish-white font color for search results.
Blackle saves energy because the screen is predominantly black.
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