NDLI: Energy Use in the Media Cloud: Behaviour Change, or Technofix?

Content Provider	IEEE Xplore Digital Library
Author	Preist, C. Shabajee, P.
Copyright Year	2010
Abstract	We present an analysis of the potential worldwide demand for downloaded data and the resulting energy requirements of the cloud. Assuming that the average westerner’s media consumption moves fully online but does not rise substantially beyond current levels, and the global middle class reach western levels of consumption, we estimate the overall demand to be 3200MB/day per person, totaling 2570 Exabytes per year by the world population. We estimate the current energy demand for bandwidth to be 4Wh/MB, based on two independent sources of data. We conclude that the average power required to support this activity would be 1175GW at current levels of efficiency, and that a factor 60 performance improvement would be needed if infrastructure energy is to be provided by 1% of renewable energy capacity in 2030. By looking at historical trends in energy efficiency, we observe that this would be reached around 2021 if these trends continue. We document potential new applications that might require bandwidth capacity beyond our estimate. We also outline behavior change strategies that could be used to reduce the overall demand for bandwidth if historical performance improvements are not maintained, and as interim measures prior to efficiencies being realized.
Starting Page	581
Ending Page	586
File Size	302475
Page Count	6
File Format	PDF
ISBN	9781424494057
DOI	10.1109/CloudCom.2010.40
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Energy consumption Energy Behavior Change Digital Media Sustainability Bandwidth Media Streaming media Energy efficiency Internet Digital audio broadcasting Green IT
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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