Browse Definitions :
Definition

standby power

Standby power is electrical power that a device consumes when not in present use, but plugged in to a source of power and ready to be used. Standby power consumption is the amount of such power that is used even though the power drainage is not apparent. The terms apply to appliances such as television sets, computers, computer peripheral s, and various other devices, including those that use battery chargers. Standby power is expressed in watt s (W).

An increasing number and variety of consumer devices incorporate standby features. Often a device is in standby mode when the consumer thinks it is completely powered-down. Placing the power switch in the OFF position does not guarantee that a device consumes no power. The only way an everyday consumer can be sure a device is not drawing power is to unplug it from the utility outlet.

Standby power, over time, adds to the energy expense incurred by a household or business. Consider a home with the following appliances in standby operation: two television sets (10 W each); three cordless telephone s (2 W each); a computer with an Uninterruptible Power Supply ( UPS ), a scanner , external hard drive, compact disc ( CD (24 W combined); and various other appliances such as microwave ovens, electric clocks, and hi-fi sets (20 W combined). The total standby power used by this household is 70 W. Over the course of a 365-day year, this amounts to more than 600 kilowatt hours (kWh). If electric energy rates average 8 cents per kWh for this period, the total bill for the year, resulting from standby power, is over 48 dollars.

It can be argued that the economic cost of standby mode, for the average consumer, is worth the added convenience the feature provides in terms of shortened warm-up periods and well-charged batteries. But when the standby power of 70 W per household or business (often much more) is multiplied by millions in a nation and integrated over a long period of time, the resulting energy consumption may have far-reaching environmental and economic consequences.

This was last updated in September 2005

Continue Reading About standby power

SearchNetworking
SearchSecurity
  • man in the browser (MitB)

    Man in the browser (MitB) is a security attack where the perpetrator installs a Trojan horse on the victim's computer that is ...

  • Patch Tuesday

    Patch Tuesday is the unofficial name of Microsoft's monthly scheduled release of security fixes for the Windows operating system ...

  • parameter tampering

    Parameter tampering is a type of web-based cyber attack in which certain parameters in a URL are changed without a user's ...

SearchCIO
  • e-business (electronic business)

    E-business (electronic business) is the conduct of business processes on the internet.

  • business resilience

    Business resilience is the ability an organization has to quickly adapt to disruptions while maintaining continuous business ...

  • chief procurement officer (CPO)

    The chief procurement officer, or CPO, leads an organization's procurement department and oversees the acquisitions of goods and ...

SearchHRSoftware
SearchCustomerExperience
  • first call resolution (FCR)

    First call resolution (FCR) is when customer service agents properly address a customer's needs the first time they call.

  • customer intelligence (CI)

    Customer intelligence (CI) is the process of collecting and analyzing detailed customer data from internal and external sources ...

  • clickstream data (clickstream analytics)

    Clickstream data and clickstream analytics are the processes involved in collecting, analyzing and reporting aggregate data about...

Close