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Energy Efficiency in Green Computing

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IndexFuture Scope of Energy EfficiencyAdvantagesDisadvantagesTechniques for reducing energyEnergy StarBlack Google

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DefinitionEnergy 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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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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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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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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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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Techniques for reducing energy usage for Green

ComputingTurn 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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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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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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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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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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“Google goes Green by going Black”

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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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THANK YOU!!!