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Date Title Files and Links
04/17/2005 Calculating Energy Savings Using High Efficiency Power Conversion (UPS, AC-DC & DC-DC Power Supply) in Server Applications (Tool)

This Excel-based calculator provides a first-order estimate of the magnitude of the energy savings based on improving the efficiency of any one or more of the elements (UPS, AC-DC and DC-DC power supply) involved in powering a rack of servers

Office spreadsheet icon UPS_Energy Savings Calculator.xls
12/01/2004 Data Centers Revisited: Assessment of the Energy Impact of Retrofits and Technology Trends in a High-Density Computing Facility

This paper updates one of the first studies to document the electricity consumption and power distribution within an Internet data center.

PDF icon DC Revisited_Assessment_2004.pdf
06/21/2004 Server Power Supply Loading Guideline

Presentation on the Server Power Supply Loading Guideline. The purposes of this Guideline is to ensure that the loading for each DC bus for a multi output server power supply is consistent when measuring power supply efficiency and to allow consistency

PDF icon ServerPowerSupply_2004.pdf
06/07/2004 Guidelines for Field Data Collection to Benchmark Data Center UPS Efficiency

The purpose of this procedure is to provide instructions/guidelines for reporting the efficiency of UPS systems that are installed in data centers.

PDF icon UPS_Field_Data_2004.pdf
03/30/2004 Energy Efficient Data Centers (Report to California Energy Commission)

Prior to this study, very little public information concerning the true electrical power requirements for California’s data centers was available. Author(s): Tschudi, B., T. Xu, D. Sartor, B. Nordman, J. Koomey, and O. Sezgen

PDF icon Energy Efficient Data Centers Report to CEC_2004.pdf
03/02/2004 Data center power use: a review of the historical data

Presentation from the IBM Austin Conference on Energy-Efficient Design Austin, TX. Author(s): Koomey, J.

PDF icon Data Center Power Use_2004.pdf
09/26/2003 Energy Benchmarking: What is Your Building's Energy IQ?

Presentation that answers the question- what is energy benchmarking anyway? As well as techniques, complications, applications, and tools. Author(s): Mills, E.

Energy Benchmarking: What is Your Building's Energy IQ?
08/01/2003 Data Centers and Energy Use – Let’s Look at the Data

The information presented can be used by data center owners, operators, and designers to understand current performance, to set design and operational criteria for new projects, to identify current best practices in design and operation, and to improve

PDF icon DC Look at Data_ACEEE 2003.pdf
02/01/2003 Design Recommendations for High-Performance Data Centers

Report from a whole-system design charrette organized by the Rocky Mountain Institute to challenge the current model for data centers and develop a groundbreaking data center design—a clean-sheet model with no compromises.

PDF icon HPDC Charrette_2003.pdf
10/01/2002 Label for UPS Systems

The Swiss Federal Office of Energy (SFOE) commissioned the project „Parameteridentifikation und Messverfahren für USV-Anlagen“ [1] and created a basis for comparing UPS systems.

PDF icon Swiss_Energy_Office_Label_2002.pdf
01/01/2002 National and regional implications of internet data center growth in the US

Combining estimates of US computer room floor space for hosting facilities with total computer room power density, we found that these US data centers in the aggregate required less than 500 MW of power in 2000, and used only about 0.12% of the electric

PDF icon National_regional DC Growth_2002.pdf
01/01/2002 Roadmap for Public Interest Research for High-Performance Data Centers

The roadmap development identified many areas where significant efficiency gains could be achieved through adoption of current best practices, better application of existing technology, and research into new technological solutions.

PDF icon Datacenter RD & D Roadmap
07/26/2001 Data center power requirements: measurements from Silicon Valley

Current estimates of data center power requirements are greatly overstated because they are based on criteria that incorporate oversized, redundant systems, and several safety factors.

PDF icon Data Center Power Requirements_2001.pdf
National Workshops

Summary of National Workshops

ENERGY STAR Data Centers


ENERGY STAR Data Centers
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