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Erschienen in:
2019 | OriginalPaper | Buchkapitel
Development and Application of Metrics for Evaluation of Cumulative Energy Efficiency for IT Devices in Data Centers
verfasst von : Fernando Peñaherrera, Katharina Szczepaniak
Erschienen in: Cascade Use in Technologies 2018
Verlag: Springer Berlin Heidelberg
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This paper develops and evaluates a set of metrics to evaluate the holistic energy efficiency of data centers. The Cumulative Energy Efficiency (CEE) and Cumulated Performance Efficiency (CPE) are metrics developed considering criteria for indicators for the evaluation of resource efficiency, while also taking into account aspects of sustainability and primary resource depletion. The metrics are calculated using Cumulative Energy Demand as resource indicator, which is analyzed through a Life Cycle Assessment of products. The useful energy and performance is then compared to this resource depletion indicator. The metrics are then tested with a case study of a server used in a data center. The results indicate a CEE=0,260 and a CPE=789 ops/J. When comparing these values to other well established metrics, the developed metrics account for embodied energy and energy transformation losses for the whole energy supply chain.