2. What is Green Computing?
Green computing is the environmentally responsible
and eco-friendly use of computers and their
resources.
In broader terms, it is also defined as the study of
designing, manufacturing/engineering, using and
disposing of computing devices in a way that reduces
their environmental impact.
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3. Why is Green Computing?
Environmental
Sustainability
Energy Consumption Electronic Waste
The environment is
vastly contaminated.
• Increasing growth in
the e-waste
generated: For
example, there were
252574 tons,
thousands primary
waste generated out
of which 19714 tons,
was from industry
manufacturing and
9447 tons were
hazardous waste.
It is extremely
important to keep a
consumption balance
by improving a position
of declining imports
and more efficient use
of all energy sources.
For example, a typical
office PC might use on
the order of 90 watts
when active which
includes 40 watts for a
typical LCD screen.
E-waste includes
discarded electronic
appliances such as
mobile phone,
computers, and
televisions. 50 million
tons of e-waste are
produced each year in
which 15–20% of e-
waste is recycled, and
the rest of these go
directly into landfills.
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4. Reasons for Green IT
practices
75%
73%
56%
55%
47%
0% 10% 20% 30% 40% 50% 60% 70% 80%
REDUCE POWER CONSUMPTION
LOWER COSTS
LOWER CARBON EMISSIONS ANF
ENVIRONMENTAL IMPACT
IMPROVED SYSTEMS PERFORMANCE AND
USE
SPACE SAVINGS
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5. What is the Green Computing
Program?
Energy Star Program:
It was developed in 1992 in the United States.
Its purpose was for the computer industry to adopt
sustainable practices on several fronts, such as
manufacturing, design, usage and eventual disposal.
It was also adopted by Australia, Canada, Japan, New
Zealand, Taiwan, and the European Union.
It promotes energy efficient products through its
certification and product labeling.
The most notable contribution of the Energy Star
program was “sleep mode” for computers, where the
system simply goes into hibernation when it isn’t in use,
thereby saving energy.
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6. How to Implement Green
Computing
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Power
Management
Cloud
Computing
Virtualization
E-Waste
Cycling
7. Benefits of Green Computing
Sustainability: the diversity and
productiveness of the biological systems
since it reduces negative impact of the
processes through green use, design,
disposal and green manufacturing
Improved Corporate and Social Image: a big
hand for the businesses to improve their
corporate image by meeting compliance and
regulatory requirements. It also a good way to
meet sustainability demands of the customers
and employees
Cost Savings: there is a significant saving
in the total operational costs
Better Resource Utilization: a powerful
approach to utilize resources such as office
space, data centers, computers, heat, light,
electrical power etc. in an environmental
friendly way
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8. Barriers to Green Computing
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Green computing quite
costly
Some computers which are
green may be considered
as underpowered
Difficulties in replacing
existing technology
Fast technology change Lack of green products
available
9. What You Can Do to Improve
Energy Management and
Efficiency with the Computer
Turn off your computer at night and also when not to be
used for long;
Enable the standby/sleep mode and power management
settings on your computer
Plan your computer-related activities; do them all at
once, keeping the computer off at other times;
Switch off your monitor when you are not using it
instead of using screen savers;
Choose dark backgrounds for your screen display;
bright-colored displays consume more power;
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10. Government Regulation
Policies and Programs
1.The US Environmental Protection Agency (EPA) has established the ENERGY
STAR label program;
2. Data Center Energy Efficiency Program (DOE, 2008) was established by the US
Department of Energy (DOE);
3. The Ministry of Economy, Trade and Industry (METI, 2008) has established the
Japan’s Green IT initiative program;
4. Denmark’s Action Plan for green IT has been established by the Ministry of
Science, Technology and Innovation (2008);
5. Chief Technology Officer (CTO) Council has established a Green ICT Strategy in
United Kingdom (2008);
6. The European Commission (EC) has formulated “Addressing the challenge of
energy efficiency through ICTs” (EC,2008);
7. Asia-Pacific Economic Cooperation (APEC) has established Energy Standards
Information System (APEC- ESIS) .
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