Data Center Sustainability Indices

Conference paper

Tozer, R, Flucker, S, Whitehead, B and Andrews, D (2018). Data Center Sustainability Indices. 2018 ASHRAE Winter Conference & AHR Expo. Chicago, USA 20 - 24 Jan 2018
AuthorsTozer, R, Flucker, S, Whitehead, B and Andrews, D
TypeConference paper
Abstract

Life cycle assessment of data centers has indicated that the main environmental impacts stem from the embodied impacts, energy efficiency and source energy mix of the facility mechanical and electrical systems and equipment and IT equipment. Metrics to describe the in-use efficiency of the power and cooling infrastructure are well adopted, however the other areas often go unmonitored, in part due to lack of data, metrics and difficulty of measurement. Without a holistic view of impact, burden shift may occur, i.e. where action is taken to reduce the environmental impact of one area which moves or increases the impact to another area. Life cycle assessment considers a range of environmental impacts grouped into areas of protection: human health and climate change, ecosystem quality and resources. In this paper a metric comprising separate measures for each main area of impact is described, identifying key variables and analysing their range so that their effect on environmental impact may be understood and used as a basis for decision making. The operational component includes the influence of energy and water consumption, PUE, WUE and renewable energy usage. The embodied component considers variables such as utilization, equipment lifecycle, materials and disposal in mechanical and electrical systems and plant and IT equipment. These are related to the IT output via a productivity proxy. The paper includes preliminary analysis of the application of the metric

Year2018
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Print20 Jan 2018
Publication process dates
Deposited20 Dec 2017
Accepted01 Dec 2017
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