Standby power

Wednesday September 18, 2013

Standby power Five tips to save energy

Did you know?


  • Standby Power globally consumes up to 480 TWh each year, nearly 3 times the total electricity used in Mexico!
  • A computer that runs 24 hours a day uses between $75 and $120 worth of electricity each year.
  • Computer screensavers increase power consumption.
  • Leaving a charging device (cellphone, batteries) in the power socket after the device has finished charging will cause it to continue to draw electricity. Even after the device is removed from the charging device, it will still draw electricity until it is unplugged.


How can you cut down the unwanted power consumption of idle devices?


The following 5 tips will help you achieve this.


  1. 1. Delay start


Some devices activate themselves automatically. A feature allows you to program devices to activate at a given moment in the future, in some cases up to 24 hours later. Devices left in this mode are neither in active nor passive Standby, thereby using very little energy.


  1. 2. Power down


A device is powered down when it is connected to a power source, but does not produce any sound or picture, transmit or receive information. If the product has a remote control, it cannot be powered on using the remote control. A device that is not equipped with a power switch (such as a TV, DVD player, stereo sound system) can be connected to a power bar and be switched off. To further save energy, unplug battery chargers and external power supplies when they are not being used or plug them into a power bar that can be turned off when not in use.


  1. 3. Intelligent power bars


Intelligent power bars are a more convenient way to reduce Standby Power usage. They can do the thinking for you. A typical intelligent power bar has the following: a master receptacle, many slave receptacles, and always on receptacles. Simply plug the main device (such as a TV) into the master receptacle and other devices (such as a DVD player, VCR, video game console, etc.) into the slave receptacles. In the always on receptacles, plug in devices that should not have power cut off completely (like set-top boxes). Turning off the TV (plugged into the master receptacle) will cause all the devices plugged into the slave receptacles to shut off completely, automatically saving energy and money.


This is not the only type of power bar. Some power bars are also equipped with a timer that will cut off electricity to designated receptacles at a user-specified time interval. There are also power bars that detect motion and will turn off automatically after a certain amount of time when there is no motion. Several other new types of intelligent power bars may also be available. It is worth researching until you find the one that best suits your needs.


  1. 4. Watt Meters


Purchase, rent, or borrow (available at some public libraries) a watt meter that will help determine the biggest Standby Power consuming products - those that should be addressed in priority. You do not need to unplug the device consuming less than 1 W of Standby Power. In any case, most of these meters are likely not able to read below 1W.


  1. 5. Buy ENERGY STAR Qualified Products


Because consumer electronics spend more time turned off than on, one of the ENERGY STAR criteria for these types of equipment is based on power consumption in Standby or sleep mode. ENERGY STAR qualified electronics can consume up to 50% less electricity than conventional products when they are turned off, thereby eliminating a major share of wasted electricity and greenhouse gas. You would have the same high quality and functions at a fraction of the overall energy cost.




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