Power Consumption - Desktops - We could save a lot
The average power consumption of a desktop when it is fully functional is about 300-400 watts per hour depending on the graphics card and other power driven equipments connected to your desktop. And when the system is idle, it draws approximately 150-200 watts per hour. A 17 inch monitor alone draws approximately 80 watts per hour.
The above are just an approximate statistics of power utilized by a standard PC provided by any software company to its employee.
Now let me take an example of an IT firm which has about 10,000 employees. Assuming each employee using a desktop, there are 10,000 desktops being used by the firm. Assuming that the employees ideally work from 9:00 AM to 7:00 PM (Approximately). I am quite sure that almost all employees would just lock the system before leaving for their homes. This means that the systems will be idle for about 14 hrs a day. So taking account of the 10,000 employees of the firm, number of hours the systems are idle in a day is approximately 1,40,000 hours.
Now summarizing the above cost factor and idle time factors:
Power utilized by a idle system : 200 watt-hour
No of idle hours of desktop of a firm : 1,40,000 hours
Total power consumed during this period : 2,80,00,000 watt-hours = 28,000 KWHr
So this comes to approximately 28 Mega
Now let me summarize this for just one city,
Again summarizing the above,
Power utilized 10,000 desktops : 28,000 KWHr
Power utilized by 50,00,000 desktops : (28,000 * 50,00,000) / 10,000 = 1,40,00,000 KWHr = 1,40,00,000 Units
If you are surprized, then probably you have not yet realized that the above figures are only for a single day in
Alone in
Don't you think all this could be just prevented by a simple "Alt + F4" and "ENTER" before you leave for your house. These are just statistics of a single city, 42 crores of power units per month can be saved by just switching off your desktops before you leave for the day.
And for those people who think that blank screen saver could save power, it has been very much evident that a blanking screen monitor consumes 30-40 watt-hour in comparison to "NIL" of a monitor switched off.
Ofcourse, System in standby mode absolutely utilizes no power, but again a desktop power settings usually has a standby mode gap of one hour. Let me not get into those calculations again.
Its quite simple,
Switching off the monitor with blank screensaver saves 40 WHr.
Switching off the monitor in general saves 80 WHr.
Switching off your desktop saves overall 150-200 WHr.
Setting standby mode for system saves 90% of power utilized after idle state.
So for the next time, you leave your office for the day, please switch off your monitor, switch off your computer and help save precious power. Just to save your 2 mins to start your desktop in the morning, why to waste crores of precious power units, ask this to yourself and you can provide your helping hand for a noble cause to care for our environment.
The statistics above may be approximate, but the purpose can still be served even if each one of us could save one power unit per day.
The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message.
Comments for this post
