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|Date||Title||Files and Links|
Particle concentrations in data centers
Study presents the first published measurements of particle concentrations in operating data centers. Indoor and outdoor particle measurements were taken at eight different sites in northern California for particulate matter 0.3–5.0 mm in diameter.
|Partical concentations data centers_2007.pdf|
2007 EPA Report to Congress on Server and Data Center Energy Efficiency
The United States (U.S.) Environmental Protection Agency (EPA) developed this report in response to the request from Congress stated in Public Law 109-431.
|EPA Datacenter Report to Congress|
Data Center Energy Benchmarking: Part 4 - Case Study on a Computer-testing Center (No. 21)
Case study of data center in multi-story office building in San Jose, California (#21). Since the data center was used only for testing equipment, it was not configured as a critical facility in terms of electrical and cooling supply. General recommenda
|Benchmarking case study 21_2007.pdf|
Data Center Energy Benchmarking: Part 5 - Case Studies on a Corporate Data Center (No. 22)
Case study of data center located in an office building in Pasadena, California (#22). General recommendations for improving overall data center energy efficiency include improving the lighting control, airflow optimization, control of mechanical system
|Benchmarking case study 22_2007.pdf|
Data Center Energy Benchmarking: Part 2 - Case Studies on Two Co-location Network Data Centers (No. 18 and 19)
Case studies of two data centers within a co-location facility located on the sixth floor of a multi-story building in downtown Los Angeles, California (#18 and #19). General recommendations for improving overall data center energy efficiency include im
|Benchmarking case study 18&19_2007.pdf|
Data Center Energy Benchmarking: Part 3 - Case Study on an IT Equipment-testing Center (No. 20)
Case study of data center in multi-story office building in San Jose, California (#20). Since the data center was used only for testing equipment, it was not configured as a critical facility in terms of electrical and cooling supply. General recommenda
|Benchmarking case study 20_2007.pdf|
Consortium for Energy Efficiency Data Centers and Servers Initiative
The CEE Data Centers and Servers Initiative serves to identify activities that will help program administrators better understand the complexity related to the design and maintenance of these types of loads.
|Data Centers and Servers Initiative|
Data Center Energy Benchmarking: Part 1 - Case Studies on Two Co-location Data Centers (No. 16 and 17)
Case studies of data centers located in a four-story building in San Francisco, California (#16 and #17). General recommendations for improving overall energy efficiency of the data centers included improving the design, operation, and control of mechan
|Benchmarking case study 16&17_2007.pdf|
Data Center Economizer Contamination and Humidity Study
Project measured server equipment exposure to particulate matter in typical California data centers to better understand what level of particle concentration is actually present.
|PG&E Economizer Contamination_2007.pdf|
Data Center Air Management Report
The purpose of this study is to demonstrate to data center designers and operators the operational and energy benefits of thoughtful and efficient data center air management techniques.
|DC AIr Management Report_2006.pdf|
ASHRAE Standard Weather Data for Building Design Standards
ASHRAE document that contains the international climate zones.
Demonstration Project Overview: DC Powering Architecture for Data Centers
This demonstration project focused on DC conversion at the equipment rack level.
Best Practices for Data Centers: Lessons Learned from Benchmarking 22 Data Centers
Over the past few years, the authors benchmarked 22 data center buildings. From this effort, we have determined that data centers can be over 40 times as energy intensive as conventional office buildings.
|Best Practices from Benchmarking 22 Data Centers|
Demonstration Project Overview: DC Powering Architecture for Data Centers
This demonstration project focused on DC conversion at the Data Center (or Facility) level.
Self Benchmarking Guide for Data Center Energy Performance
Energy benchmarking offers a very effective way to evaluate the performance of a data center facility and compare it to similar facilities.
|LBNL Datacenter Self-Benchmarking Guide|
Measuring and Managing Data Center Energy Use
This article summarizes best practices developed from an extensive study of energy use in 22 data centers. Author(s): Tschudi, B., E. Mills, S. Greenberg, P. Rumsey
|Measure_Manage Data Centers_2006.pdf|
High Performance Data Centers: A Design Guidelines Sourcebook
Based upon benchmark measurements of operating data centers and input from practicing designers and operators, the Design Guidelines are intended to provide a set of efficient baseline design approaches for data center systems.
High Performance Buildings: Data Centers Uninterruptible Power Supplies (UPS)
The goals for this project included a complete analysis of distribution of UPS design efficiencies, which included the development of a UPS test protocol, and the broad circulation of efficiency findings to the industry through the CEC PIER program, Law
High Performance Buildings: Data Centers Server Power Supplies
The goals for this project include an analysis of power supply efficiencies, which included the development of an accepted test protocol for server power supplies, lab and field testing of a broad range of server power supplies and documenting the resul
|Server Power Supplies_2005.pdf|
Estimating Total Power Used By Data Centers in California
This study estimates total power use for such facilities, focusing mainly on California. We begin by summarizing what is known about total floor area for these facilities, and then analyzing the power densities associated with this floor area.
|Total CA Power DCs_2005.pdf|
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
|UPS_Energy Savings Calculator.xls|
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.
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
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.
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
|Energy Efficient Data Centers Report to CEC_2004.pdf|