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New Book: Everything you Need to Know about the PUE Metric

January 27, 2014

A new book that consolidates everything data center professionals need to know about power usage effectiveness (PUE) was just published by the Green Grid Association, the leader in data center and IT resource efficiency, and ASHRAE, a global building technology society. 

PUE™: A Comprehensive Examination of the Metric explains the concepts surrounding PUE, plus in-depth application insight and resources to those implementing, reporting and analyzing data center metrics. It also includes detailed information on procedures for calculating, reporting and analyzing PUE measurements.

As a pioneer in Passive Cooling® Solutions, Chatsworth Products (CPI) is a key player in airflow management at the cabinet level. CPI Passive Cooling Solutions allow you to lower your PUE metric, by maximizing your cooling efficiencies without the need for additional CRAC units, in-row air conditioners or liquid cooling solutions. 

PUE is calculated by dividing the amount of power entering a data center by the power used to run the computer infrastructure within it. PUE is therefore expressed as a ratio, with overall efficiency improving as the quotient decreases toward 1. (Note: CPI offers a free, easy-to-use PUE Calculator that can help you easily tabulate your PUE). 

As you take your PUE calculation into consideration for your data center improvements, also take note of the benefits of CPI’s Passive Cooling Solutions:

• They can reduce data center cooling costs up to 90%

• Save up to 40% on total data center energy costs

• Allow for higher Delta T's between the data center cooling air and exhaust air

• Allow for Tier IV operation, because there are no moving parts that require redundant systems

• Permits chilled water temperatures to be increased, providing means for more hours of economization under high IT loads

• Lowers construction costs relative to active cooling solutions

PUE: A Comprehensive Examination of the Metric is available for sale through ASHRAE’s web site. Visit CPI’s Energy Efficiency page for details on how to reduce data center cooling costs. 

Raissa Carey, eContent Specialist

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