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The amount of energy consumed by computers and
monitors in commercial buildings is significant. In
full-power operation, a computer can use 80-100
Watts of power. In sleep mode, a computer only uses
on average 3-5 Watts.
Computer Power Usage
Plug load energy accounts for
approximately one third of commercial
building electricity consumption.
Data Source: DOE, 2010
Space
Cooling
13%
Ventilation
11%
Water
Heating
7%
Space
Heating
16%
Lighting
20%
Plug Load
33%
Computers and monitors account for
66 percent of all plug load energy use
in commercial offices.
Data Source: Itron, Inc., 2006
Computers &
Monitors
66%
Office
Electronics
16%
Miscellaneous
18%