Energy consumption of personal computer workstations

Conference · Mon Aug 01 04:00:00 EDT 1994

OSTI ID:10182775

Szydlowski, R F; Chvala, Jr, W D

A field study directly measured the electric demand of 189 personal computer workstations for 1-week intervals, and a survey recorded the connected equipment at 1,846 workstations in six buildings. Each separate workstation component (e.g., computer, monitor, printer, modem, and other peripheral) was individually monitored to obtain detailed electric demand profiles. Other analyses included comparison of nameplate power rating with measured power consumption and the energy savings potential and cost-effectiveness of a controller that automatically turns off computer workstation equipment during inactivity. An important outcome of the work is the development of a standard workstation demand profile and a technique for estimating a whole-building demand profile. Together, these provide a method for transferring this information to utility energy analysts, design engineers, building energy modelers, and others. A life-cycle cost analysis was used to determine the cost-effectiveness of three energy conservation measures: (1) energy awareness education, (2) retrofit power controller installation, and (3) purchase of energy-efficient PCs.

• Research Organization: Pacific Northwest Lab., Richland, WA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 10182775
• Report Number(s): PNL-SA--24424; CONF-940893--9; ON: DE94018916
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320000
99 GENERAL AND MISCELLANEOUS
990200
ENERGY CONSERVATION
ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
ENERGY EFFICIENCY
FORECASTING
MATHEMATICS AND COMPUTERS
PERSONAL COMPUTERS
POWER DEMAND