Library & Tools

The Green Grid is delivering a consistent set of definitions and tools to make it easier for data center managers to determine and compare their operational efficiency. Specific white papers, calculation tools and industry glossary represent some of the industry’s most comprehensive thinking around data center efficiency.

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White Paper #61 - Space Usage Effectiveness
*FOR MEMBERS ONLY*

The Green Grid has developed a new metric to complement the series of metrics it has introduced in the past few years, which includes the widely accepted and adopted power usage effectiveness (PUE™). The Green Grid proposes this new metric to address one of the most important challenges that data center owners face: space usage in data centers. The new space usage effectiveness (SpUE™) metric joins The Green Grid’s family of xUE metrics, which includes carbon usage effectiveness (CUE™) and water usage effectiveness (WUE™) metrics as well as PUE. Data center managers can use these metrics to quickly assess the optimization of space, carbon, water, and energy usage aspects of their data centers, compare the results, and determine if any resource efficiency and/or sustainability improvements can be made. Along with PUE’s broad implementation in the industry, CUE and WUE are gaining wider acceptance and adoption, and the SpUE metric is a natural extension of the xUE family. SpUE gives managers another tool to guide improvements in the effective use of resources.

Metrics & Measurements - December 05, 2014 Comment now
White Paper #60 - IT Asset Disposition 101 for Commercial End Users
*FOR MEMBERS ONLY*

In a landscape of increasing scrutiny and importance placed on how organizations treat their used and waste electronics and electrical equipment, it is helpful to establish some order and accountability around your IT assets through their entire internal life cycle. Data center managers and other IT professionals charged with responsible management of these assets can benefit their entire organizations by establishing IT Asset Disposition (ITAD) programs.

Many ITAD programs are established with the core objectives of realizing financial accountability and return, ensuring data security or destruction, complying with legal and corporate compliance requirements, and satisfying applicable standards and certifications. In addition to fulfilling these requirements, organizations are increasingly expressing an interest in finding ways to structure programs to help them achieve environmental and sustainability goals.

Due to the wide range of organizations’ IT assets, supply chains, numbers and locations of sites, and other complexities, there can be no truly effective one-size-fits-all description of an ITAD program. This document from The Green Grid, a non-profit industry consortium that works to improve the resource efficiency of information technology and data centers worldwide, lays out specific questions for IT professionals to ask themselves and their stakeholders when considering a customized ITAD program. It is meant to serve as an extended FAQ or program reference. It provides guidance on the business case for and positive implications of creating a program; information regarding the standards, certifications, and regulations related to ITAD; insights on identifying, selecting, and managing program stakeholders and suppliers; and a discussion of operational concerns about developing, implementing, and managing a tailored ITAD program.

Metrics & Measurements - October 06, 2014 Comment now
Harmonizing Global Metrics For Data Center Energy Efficiency - March 2014

This public memo addresses the agreement reached by the Global Metrics Harmonization Task Force on standard approaches and reporting conventions for data center energy productivity (DCeP).

 

 

Metrics & Measurements - March 13, 2014 Comment now
PUE: A Comprehensive Examination of the Metric

This book provides guidelines for determining the PUE of a dedicated data center and that of a mixed-use facility or specialized facility, along with results, scalability analyses, and case studies. It also discusses Partial PUE and outlines the approach to reuse waste heat. Issues such as availability of equipment and the productivity of the data center require different metrics and different analyses. This book is available free of charge to members as a benefit of your membership in the organization.

This publication supersedes all prior white papers and consolidates all of the new and previously published content that The Green Grid has developed related to PUE. The definition and measurement guidelines included in this book have been harmonized globally, with a primary focus on energy.

Metrics & Measurements - February 04, 2014 Comment now
White Paper #53 - Electronics Disposal Efficiency (EDE): An It Recycling Metric for Enterprises and Data Centers

This white paper outlines the new Electronics Disposal Efficiency (EDE) metric. EDE is the first universal metric launched by The Green Grid to help end-users of Information and Communications Technologies (ICT) measure their success in the responsible management of outdated equipment. EDE is a simple metric that helps organizations calculate and measure their progress in improving equipment disposal processes over time.

Metrics & Measurements - March 05, 2013 Comment now
Harmonizing Global Metrics For Data Center Energy Efficiency - November 2012

This public memo addresses the agreement reached by the Global Metrics Harmonization Task Force on measurement protocols for the Green Energy Coefficient (GEC), Energy Reuse Factor (ERF) and Carbon Usage Effectiveness (CUE) metrics.

Metrics & Measurements - November 13, 2012 Comment now
White Paper #49-PUE: A Comprehensive Examination of the Metric

This white paper provides guidelines for determining the PUE of a dedicated data center and that of a mixed-use facility or specialized facility, along with results, scalability analyses, and case studies. It also discusses Partial PUE and outlines the approach to reuse waste heat. Issues such as availability of equipment and the productivity of the data center require different metrics and different analyses. This book is available free of charge to members as a benefit of your membership in the organization.

This publication supersedes all prior white papers and consolidates all of the new and previously published content that The Green Grid has developed related to PUE. The definition and measurement guidelines included in this book have been harmonized globally, with a primary focus on energy.

Metrics & Measurements - October 02, 2012 Comment now
Recommendations For Measuring and Reporting Overall Data Center Efficiency Version 2 - Measuring PUE for Data Centers (May 2011)

The purpose of this document is to provide recommendations on measuring and publishing values for PUE at data centers. These recommendations represent the collective work of a task force representing 7x24 Exchange, ASHRAE, The Green Grid, Silicon Valley Leadership Group, U.S. Department of Energy Save Energy Now Program, U.S. Environmental Protection Agency’s ENERGY STAR Program, United States Green Building Council, and Uptime Institute.

Metrics & Measurements - May 17, 2011 Comment now
Using CUE™ and WUE™ to Improve Operations in Your Data Center (2011 Technical Forum)

Recently The Green Grid announced the creation of two new metrics designed to help improve the sustainability of data center facilities by measuring the effectiveness of carbon and water use tied specifically to the IT energy infrastructure they contain. The new metrics, Carbon Usage Effectiveness (CUE™) and the Water Usage Effectiveness (WUE™), are joining The Green Grid’s widely-used Power Usage Effectiveness (PUE) metric. All are designed to help IT, facilities, and sustainability organizations across the globe optimize their data centers. This will be a facilitated discussion among a panel of contributors who co-authored CUE and WUE and the audience. The panel and audience will have an interactive session where we explore the benefits and challenges of the new metrics.

Metrics & Measurements - March 02, 2011 Comment now
Data Center Efficiency Metrics - PUE™, Partial PUE, ERE, DCcE (2011 Technical Forum)

The Green Grid has released several metrics over the past few years targeting specific areas of data center energy efficiency. This session will be a panel of co-authors for the released metrics PUE, ERE, DCcE, and the soon to be released Partial PUE. The presenters will provide an introduction and current status to each metric and will reserve time for an interactive audience discussion.

Metrics & Measurements - March 02, 2011 Comment now
Global Harmonization of Data Center Efficiency Metrics (2011 Technical Forum)

This session will review the progress and current status specific to the Global Harmonization of Metrics effort. In 2009 The Green Grid in collaboration with organizations around the globe began driving toward a set of metrics and indices which can be formally adopted by all participant organizations to improve data center energy efficiency globally. Groups participating in this effort are the Department of Energy, the Environmental Protection Agency, the European Union Code of Conduct, Japan’s Green IT Promotion Council, Ministry of Economy, Trade and Industry, and various additional industry groups.

Metrics & Measurements - March 02, 2011 Comment now
The Latest On The Green Grid's Productivity Research (2011 Technical Forum)

The Green Grid defined the Data Center energy Productivity (DCeP) metric to quantify the useful work that a data center produces based on the amount of energy it consumes. This metric intends to allow data center operators the ability to optimize the energy used based on the current workload and to facilitate comparisons before and after actions are taken. The Green Grid proposed eight proxies that could be used to approximate DCeP and solicited industry feedback to determine the criteria to use to evaluate the proxies. In this session, the presenter will review the proposed proxies to measure productivity and present a preliminary assessment of the top five evaluation criteria. The session will also cover experimental validation of the proxies that The Green Grid is conducting to assess ease-of-use and accuracy.

Metrics & Measurements - March 02, 2011 Comment now
WP#35-Water Usage Effectiveness (WUE™): A Green Grid Data Center Sustainability Metric

This white paper introduces the water usage effectiveness (WUE™) metric, which combined with the power usage effectiveness (PUE™)  and carbon usage effectiveness (CUE™) metrics, enables data center operators to quickly assess the water, energy, and carbon sustainability aspects of their data centers, compare the results, and determine if any energy efficiency and/or sustainability improvements need to be made.

Metrics & Measurements - March 01, 2011 Comment now
Harmonizing Global Metrics For Data Center Energy Efficiency - February 2011

This public memo addresses the agreement reached by the Global Metrics Harmonization Task Force on measurement protocols for the Power Usage Effectiveness (PUE™) metric and continued discussions on additional energy efficiency metrics.

 

 

Metrics & Measurements - February 28, 2011 Comment now
WP#34-The Green Grid Data Center Compute Efficiency Metric: DCcE

The Green Grid is proposing the use of a new metric—data center compute efficiency (DCcE)—and its underlying sub-metric, server compute efficiency (ScE). These metrics will enable data center operators to determine the efficiency of their compute resources, which allows them to identify areas of inefficiency. Using DCcE and ScE, data center operators can continually refine and increase the efficiency of their compute resources in the same way that they use power usage effectiveness (PUE) to improve data center infrastructure.

Metrics & Measurements - December 20, 2010 Comment now
WP#32-Carbon Usage Effectiveness (CUE): A Green Grid Data Center Sustainability Metric

This white paper introduces the carbon usage effectiveness (CUE) metric and addresses data center–specific carbon emissions, which is emerging as an extremely important factor in the design, location, and operation of these facilities today and in the future. CUE, combined with PUE, enables data center operators to quickly assess the relative sustainability of their data centers, compare the results, and determine if any energy efficiency and/or sustainable energy improvements need to be made.

Metrics & Measurements - December 02, 2010 Comment now
EMEA Technical Forums 2010 - Harmonizing Global Metrics for Data Centre Energy Efficiency

Presented at the EMEA Technical Forums held in Europe in November and December 2010.

Metrics & Measurements - November 30, 2010 Comment now
WP#29-ERE: A Metric for Measuring the Benefit of Reuse Energy from a Data Center

The energy efficiency of data centers continues to be a critical factor in improving the overall energy use of IT equipment. In more and more new facilities, the energy from the data center is being reused in other parts of the facility or campus with beneficial results. These designs lack a metric with which can be tracked and compared. Power Usage Effectiveness (PUE) is a base data center infrastructure metric, but it does not consider these alternate uses for the waste energy. To account for these, The Green Grid has proposed and defined a new metric: Energy Reuse Effectiveness, or ERE.

Metrics & Measurements - September 22, 2010 Comment now
Power Usage Effectiveness Estimator

The Power Usage Effectiveness Estimator will allow you to enter data on the estimated power usage of the components for a data center facility in order to properly estimate the PUE™ of the facility. This tool includes the concept of physical boundaries within a data center and also reports partial PUE™ for these boundaries. Results of the PUE™ estimation can be saved as PDF or CSV files, in a URL for later reference, or emailed. All data is saved anonymously.

Metrics & Measurements - August 11, 2010 Comment now
Recommendations For Measuring and Reporting Overall Data Center Efficiency

The purpose of this document is to provide recommendations on measuring and publishing values for PUE at dedicated data center facilities. These recommendations represent the collective work of a task force representing 7x24 Exchange, ASHRAE, The Green Grid, Silicon Valley Leadership Group, U.S. Department of Energy Save Energy Now Program, U.S. Environmental Protection Agency’s ENERGY STAR Program, United States Green Building Council, and Uptime Institute. The recommendations are prepared in accordance with the guiding principles discussed in the paper. The task force continues to work towards a Version 2 document, which will provide corresponding guidance for mixed-use buildings.

Metrics & Measurements - July 15, 2010 Comment now
Measuring Data Center Productivity: The Latest and Greatest

Last year, The Green Grid introduced the concept of measuring data center productivity through the use of proxies: simplified metrics that closely indicate the amount of real work done in data centers without the expense and difficulty of measuring work directly. This year, results of the feedback surveys are analyzed, progress on the metrics is discussed, and directions for the coming year are explained.

Metrics & Measurements - February 04, 2010 Comment now
A Metric for Measuring the Re-use of Waste Heat
*FOR MEMBERS ONLY*

This session will review ongoing work within The Green Grid and select national labs on developing a metric for measuring the benefit of reusing excess or waste energy from the data center.

Metrics & Measurements - February 03, 2010 Comment now
Calculating Partial PUEs
*FOR MEMBERS ONLY*

The measuring and management of the PUE for an IT facility is an effective tool in the overall management of the energy use of a facility. While PUE is a valuable tool, it can be used inappropriately.

Metrics & Measurements - February 03, 2010 Comment now
Global Harmonization of Metrics
*FOR MEMBERS ONLY*

This session will review the progress and current status specific to the Global Harmonization of Metrics effort. In 2009 The Green Grid in collaboration with the following organizations began driving toward a set of metrics and indices which can be formally adopted by all participant organizations to improve data center energy efficiency globally.

Metrics & Measurements - February 03, 2010 Comment now
PUE/DCiE Current Status and Future Developments
*FOR MEMBERS ONLY*

In light of the recent Environmental Protection Agency announcement to support the PUE metric as the foundation for the Data Center Energy Star Rating system, this session will briefly outline the previous PUE/DCiE publications, the current progress within The Green Grid respective to PUE/DCiE, and the future developments that will be released in 2010.

Metrics & Measurements - February 03, 2010 Comment now
The United States of America, European Union and Japan Reach Agreement on Guiding Principles for Data Center Energy Efficiency Metrics

As business demands and energy costs for data centers rise, owners and operators have focused on the energy efficiency of the data center as a whole, frequently using energy efficiency metrics. However, the metrics are not always applied clearly and consistently at a global level. To address these inconsistencies, a group of global leaders met on February 2, 2010 to agree on data center energy efficiency measurements, metrics, and reporting conventions.

Metrics & Measurements - February 02, 2010 Comment now
Data Center Industry Leaders Reach Agreement on Guiding Principles for Energy Efficiency Metrics

As business demands and energy costs for data centers rise, owners and operators have focused on the energy efficiency of the data center as a whole, frequently using energy efficiency metrics. However, the metrics are not always applied clearly and consistently. To address these inconsistencies, a group of leaders from across the industry met on January 13, 2010 to agree on data center energy efficiency measurements, metrics, and reporting conventions.

Metrics & Measurements - February 01, 2010 Comment now
WP#24-Productivity Proxy Proposals Feedback: Interim Results

In January 2009 The Green Grid (TGG) published a paper entitled, “Proxy Proposals for Measuring Data Center Productivity,” which proposed eight candidates for a simple proxy that would be useful for estimating DCeP, but significantly easier to calculate than the DCeP metric is. This paper reviews the results of the feedback from users that was gathered as to which of the proposed proxies they felt would be the most useful and worthy of further investigation.

Metrics & Measurements - October 07, 2009 Comment now
WP#22-Usage and Public Reporting Guidelines for PUE/DCiE

The Green Grid is publishing a set of rules and guidelines and a required process that organizations should follow when making public claims as to PUE or DCiE measurements for their data centers.

Metrics & Measurements - October 02, 2009 Comment now
PUE Scalability Metric and Statistics Spreadsheet
*FOR MEMBERS ONLY*

Spreadsheet used to plug-in power data samples and yield statistics for the PUE Scalability Metric.

Metrics & Measurements - March 02, 2009 Comment now
How to Measure and Report PUE and DCiE

During this session four Contributor Member companies will present on the latest developments on The Green Grid Efficiency metrics. The first section will provide a brief background of PUE and DCiE. The second section will provide an overview of the DCiE Detailed Analysis white paper. The final section will provide an overview of the recently published PUE / DCiE Usage and Public Reporting Guidelines and will include a quick preview of three Green Grid web-based tools scheduled for future release: PUE Calculator, Free Cooling Map, and Power Configurations Calculator.

Metrics & Measurements - February 04, 2009 Comment now
Productivity Proxy Proposals

While the DCeP metric is well defined, it can sometimes be difficult to implement. The Green Grid (TGG) recognizes that there is a need for something that is simpler to implement than the DCeP metric, and that can be used to make comparisons of the work done within a data center. TGG is proposing that a simple indicator, or proxy, while less accurate than a metric such as DCeP, can be useful because it will be easier to implement. The goal is to find a proxy that will substitute for a difficult measurement, but that still gives a good enough indication of useful work completed. Eight potential proxies are proposed in this session, with instructions on how to give feedback to TGG and what future work may be undertaken.

Metrics & Measurements - February 04, 2009 Comment now
PUE Scalability Metric and Statistical Analysis

This session will review The Green Grid Association's PUE Scalability Metric and Statistical Analyses white paper and illustrate the use of metrics and statistics. The PUE metric allows for the leveraging of periodic power data measurements taken in the data center and the analysis from this paper will help the data center facilities manager better understand and measure the value of opportunities for investments in energy efficiency improvements. Also covered is viewing the metrics and analyses on either real-time or cumulative gauges.

Metrics & Measurements - February 04, 2009 Comment now
Introduction of The Green Grid Tools
*FOR MEMBERS ONLY*

The Green Grid is currently developing three tools in an effort to aid data center operators.

Metrics & Measurements - February 03, 2009 Comment now
Update on Progress of DCeP
*FOR MEMBERS ONLY*

In this session PNNL’s experience applying TGG’s proposed Data Center Energy Productivity (DCeP) metric to a HPC cluster with scientific workloads will be discussed.

Metrics & Measurements - February 03, 2009 Comment now
WP#20-PUE Scalability Metric and Statistical Analyses

This paper explains how to leverage energy consumption data collection to enhance the results of PUE/DCiE metrics with additional statistical analyses and a new metric called PUE Scalability to provide a well-rounded view of data center infrastructure energy efficiency.

Metrics & Measurements - January 28, 2009 Comment now
WP#17-Proxy Proposals for Measuring Data Center Productivity

Proxy Proposals for Measuring Data Center Productivity

Metrics & Measurements - January 14, 2009 Comment now
WP#05.1-Existing Data Center & IT Energy Efficiency Metrics, Guidelines and Programs
*FOR MEMBERS ONLY*

In this paper, The Green Grid provides a survey of various organizations that are currently investigating issues surrounding data center power and energy.

Metrics & Measurements - January 07, 2009 Comment now
WP#14-Data Center Infrastructure Efficiency (DCiE) Detailed Analysis

This paper serves as a follow-up to the previously published paper "The Green Grid Metrics: Describing Data Center Power Efficiency." The paper provides a detailed analysis to support and strengthen the DCiE metric with the intent of enabling data center managers collectively to derive and use DCiE as a global standard metric.

Metrics & Measurements - July 02, 2008 Comment now
WP#15-Green Grid Productivity Indicator

This paper proposes a tool which visualizes how effectively the resources in the data center are being used. Through the use of a radial graph, relevant indicators such as data center efficiency, data center utilization and IT utilization can be quickly and clearly communicated to provide organizational awareness.

Metrics & Measurements - July 02, 2008 Comment now
WP#10-Framework for Establishing a Rating System for Operational Data Center Infrastructure Energy Efficiency
*FOR MEMBERS ONLY*

This paper delivers a results-oriented means to evaluate the energy efficiency of a data center. This rating system focuses on rewarding data centers that measure energy-use over a long period of time, log data for short-term and long-term energy efficiency calculations, and analyze the scalability of total energy-use as information technology (IT) equipment load varies.

Metrics & Measurements - June 25, 2008 Comment now
WP#13-A Framework for Data Center Energy Productivity

This paper introduces a new family of data center resource optimization metrics designated collectively as Data Center Productivity (DCP) metrics and presents the first derivative metric within this family called Data Center energy Productivity (DCeP).

Metrics & Measurements - April 29, 2008 Comment now
ASHRAEs Building Ratings and Codes

ASHRAEs Building Ratings and Codes

Metrics & Measurements - February 06, 2008 Comment now
Five Ways to Save Server Power

Five Ways to Save Server Power

Metrics & Measurements - February 06, 2008 Comment now
Measuring Data Center Productivity

Measuring Data Center Productivity

Metrics & Measurements - February 06, 2008 Comment now
Measuring DCiE Today
*FOR MEMBERS ONLY*

Measuring DCiE Today

Metrics & Measurements - February 06, 2008 Comment now
WP#06-The Green Grid Data Center Power Efficiency Metrics: PUE and DCiE

The Green Grid is an association of IT professionals seeking to dramatically raise the energy efficiency of data centers through a series of short-term and long-term proposals. This is an update to the first white paper published by the Green Grid in February 2007 called "Green Grid Metrics: Describing Data Center Power Efficiency."

Metrics & Measurements - October 23, 2007 Comment now
WP#01-The Green Grid Metrics: Describing Data Center Power Efficiency

The Green Grid explains the use of the Power Usage Effectiveness (PUE) metric, along with its reciprocal the Data Center Efficiency (DCE) metric.

Metrics & Measurements - February 20, 2007 Comment now
WP#02-Guidelines for Energy Efficient Data Centers

The Green Grid provides a framework for improving the efficiency of both new and existing data centers. The nature of data center energy consumption is reviewed and best practices are suggested that can significantly impact operational efficiencies.

Metrics & Measurements - February 16, 2007 Comment now
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