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Archives: Definitions

For our research, we have been using the following definition:

“Standby power is the power used while an electrical device is in its lowest power mode.”

Most of the data compiled and presented on this website reflect that definition. At a recent IEA-sponsored meeting, government, research and industry representatives hammered out a more general definition.

The Federal Energy Management Program (FEMP) now had a recommended test procedure for measure standby power.

Definitions of “Standby Mode”

  • Advanced Configuration and Power Interface (ACPI) Specification (Intel, Microsoft, Toshiba; Revision 1.0, December 22, 1996)
  • ENERGY STAR® labeled Home Electronics (US EPA)

The material found on this page is considered archival. Please visit for the most recent information about Standby Power.