Power usage effectiveness (PUE) or power unit efficiency is a ratio that describes how efficiently a computer data center uses energy; specifically, how much energy is used by the computing equipment (in contrast to cooling and other overhead that supports the equipment).
PUE is the ratio of the total amount of energy used by a computer data center facility[1][2][3][4][5][6][7][8][excessive citations] to the energy delivered to computing equipment. PUE is the inverse of data center infrastructure efficiency.
PUE was originally developed by a consortium called The Green Grid. PUE was published in 2016 as a global standard under ISO/IEC 30134-2:2016
An ideal PUE is 1.0. Anything that isn't considered a computing device in a data center (e.g. lighting, cooling, etc.) falls into the category of facility energy consumption.
- ^ "What is power usage effectiveness (PUE)? - Definition from WhatIs.com".
- ^ Digital Realty - PUE Data Center Efficiency Metric
- ^ "Optimizing Power Usage Effectiveness In Data Centers". www.esmagazine.com.
- ^ "The Green Grid - The Green Grid Data Center Power Efficiency Metrics: PUE and DCiE".
- ^ Google - Efficient Computing - Data Centers - Efficiency: How we do it?
- ^ Dell - Best Practices for Increasing Data Center Energy Efficiency
- ^ Cisco Systems - Cisco Energywise
- ^ Google Data Center Optimization - [1]