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The energy demand of ICT: A historical perspective and current methodological challenges
KTH, Skolan för datavetenskap och kommunikation (CSC), Centra, Skolan för arkitektur och samhällsbyggnad (ABE), Centra, Centre for Sustainable Communications, CESC. University of Zurich, Switzerland .
2015 (Engelska)Ingår i: ICT Innovations for Sustainability, Springer, 2015, s. 71-103Kapitel i bok, del av antologi (Refereegranskat)
Abstract [en]

This chapter provides an overview of energy demand issues in the field of ICT with a focus on the history of measuring, modelling and regulating ICT electricity consumption and the resulting methodological challenges. While the energy efficiency of ICT hardware has been dramatically improving and will continue to improve for some decades, the overall energy used for ICT is still increasing. The growing demand for ICT devices and services outpaces the efficiency gains of individual devices. Worldwide per capita ICT electricity consumption exceeded 100 kWh/year in 2007 (a value which roughly doubles if entertainment equipment is included) and is further increasing. Methodological challenges include issues of data collection and modelling ICT devices and services, assessing the entire life cycle of ICT devices and infrastructures, accounting for embedded ICT, and assessing the effect of software on ICT energy consumption.

Ort, förlag, år, upplaga, sidor
Springer, 2015. s. 71-103
Serie
Advances in Intelligent Systems and Computing, ISSN 2194-5357 ; 310
Nyckelord [en]
Energy conversion, Energy policy, Green ICT, Green software, ICT energy consumption, ICT life cycle, Regulation, Standby power
Nationell ämneskategori
Energiteknik
Identifikatorer
URN: urn:nbn:se:kth:diva-166909DOI: 10.1007/978-3-319-09228-7_4Scopus ID: 2-s2.0-84927656883ISBN: 978-3-319-09227-0 (tryckt)ISBN: 978-3-319-09228-7 (tryckt)OAI: oai:DiVA.org:kth-166909DiVA, id: diva2:817959
Anmärkning

QC 20150608

Tillgänglig från: 2015-06-08 Skapad: 2015-05-21 Senast uppdaterad: 2015-06-08Bibliografiskt granskad

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Hilty, Lorenz
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Centre for Sustainable Communications, CESC
Energiteknik

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