Practical energy saving and power-workload proportionality in a campus environment

H. Abaci, G. Parr, S. McClean, A. Moore, L. Burness, L. Forgiel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


This paper reports the results of a study that aims to identify where it would be possible to reduce the energy consumption of IT equipment at BT's (British Telecom) site at Adastral Park in the UK. We studied a small sample of the equipment (routers, switches and servers) which were owned by the research team. The paper identifies practical steps that system administrators can take to reduce their power use and achieve Power-Workload Proportional (PWP) IT. We propose a model to calculate the average power consumption of servers and network devices, and propose a new metric "Waste" that measures how "green" a device is by calculating wasted energy consumption per performance/throughput e.g. the "Waste" per Gbps for the network and "Waste" per GHz for the server. Based on this study, we estimate that it would be possible today to save 38.6% of server energy consumption and up to 19.9% of network equipment energy consumption at the BT site.
Original languageEnglish
Title of host publication2012 IEEE Green Technologies Conference
PublisherThe Institute of Electrical and Electronics Engineers (IEEE)
ISBN (Electronic)978-1-4673-0967-7 , 978-1-4673-0966-0
ISBN (Print)978-1-4673-0968-4
Publication statusPublished - 12 May 2012
Event2012 IEEE Green Technologies Conference - Tulsa, United States
Duration: 19 Apr 201220 Apr 2012


Conference2012 IEEE Green Technologies Conference
Country/TerritoryUnited States

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