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1 |
You should never turn off your computer.- Your
computer is designed to handle 40,000 on/off cycles. If you
are an average user, that’s significantly more cycles than
you will initiate in the computer’s five-to-seven-year-life.
When you turn your computer off, you not only reduce energy
use, you also lower heat stress and wear on the system. |
2 |
Turning your computer off and then back on uses more energy
than leaving it on - The surge of power used by a computer
to boot up is far less than the energy your computer uses
when left on for more than three minutes. |
3 |
Screen savers save energy.- This is a common misconception.
Screen savers were originally designed to help prolong the
life of monochrome monitors. Those monitors are now technologically
obsolete. Screen savers save energy only if they actually
turn off the screen or, with laptops, turn off the backlight.. |
4 |
Network connections are lost when computers go into low-power
or Stand by (sleep) mode.- Newer computers are designed to
Stand by (sleep) on networks without loss of data or connection.
CPUs with Wake on LAN (WOL) technology can be left in Stand
by (sleep) mode overnight to wake up and receive data packets
sent to the unit. |
5 |
LCD monitors use less energy than CRT’s so therefore I
should leave it on at all times. The average 17” LCD monitor
uses 35 watts of electricity an hour. In a business environment
where hundreds to thousands of LCD’s are in use simultaneously,
this can add up in costs very quickly. Again, use power saving
techniques, and look for |
6 |
A monitor that is an Energy Star qualified product. Energy
star products will put the monitor into sleep mode if configured
correctly. Remember, LCD monitors are considered to be “vampire
energy users”, meaning the display will still be drawing
power, even in sleep mode. If the size of the monitor isn’t
necessarily a factor, consider purchasing a 14” LCD, you
will be generating 40% less energy as opposed to a 17” LCD. |
7 |
An average desktop computer requires 85 watts just to idle,
even with the monitor off. If that computer were in use or
idling for over 40 hours a week instead of a full 168, over
$40 in energy costs would be saved annually. |
8 |
One computer left on 24 hours a day costs you between $115
and $160 in electricity costs annually while dumping 1,500
pounds of CO2 into the atmosphere. |
9 |
A tree absorbs between 3 and 15 pounds of CO2 each year.
That means up to 500 trees are needed to offset the annual
emissions of one computer left on all the time! |
10 |
If each household in a region the size of the metro Boston
area turned off its computer for just one additional hour
per day, it would save $3.2 million in electricity costs
and prevent 19,000 tons of CO2 from heating the atmosphere. |
11 |
Electricity production is the largest source of greenhouse
gas emissions in the United States, ahead of transportation |
