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Work item:
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L.Env_DC
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Subject/title:
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Guidelines on Multi-Dimensional Environmental Metrics and Management for Data Centres
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Status:
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Under study [Issued from previous study period]
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Approval process:
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AAP
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Type of work item:
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Recommendation
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Version:
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New
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Equivalent number:
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-
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Timing:
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2026 (Medium priority)
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Liaison:
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GeSI; ISO/IEC JTC1 SC39
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Supporting members:
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China Telecommunications Corporation, ZTE, China, Orange
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Summary:
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Under the goal and vision of sustainable development, more purchasers have put forward higher requirements for the environmental friendliness level of data centres. For instance, they have set more demands on the renewable energy level, carbon emission level, and resource recycling utilization of data centres. The early PUE index has played an important role in improving the energy efficiency of data centres. However, this index is limited to energy utilization and has very limited effect on the improvement of the environmental sustainability of data centres in terms of renewable energy utilization and resource recycling. Currently, there is a lack of an overall index system for evaluating the carbon emissions of data centres.
This recommendation introduces muti-dimensional environmental metrics system over the life cycle data centre, which is consisted of dimension of energy efficiency, resource efficiency, carbon emission efficiency and environmental impact, and details the metrics in each dimension, including:
(1) Energy efficiency: Power usage effectiveness, datacentre infrastructure efficiency, IT equipment energy efficiency for servers, computational Efficiency, cooling efficiency ratio, energy reuse factor;
(2) Resource efficiency: Land-use intensity, infrastructure usage effectiveness, Equipment Utilization for servers, IT equipment load rate, water usage effectiveness, reuse and recycling rate;
(3) Carbon emission efficiency: Renewable energy factor, carbon usage effectiveness;
(4) Environmental impact: Outdoor noise, refrigerants usage amount, air pollutants emissions intensity.
Then, it proposed environmental metrics of concern in the data centre life cycle stages and guidelines on management of these metrics.
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Comment:
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-
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Reference(s):
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Historic references:
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Contact(s):
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| ITU-T A.5 justification(s): |
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First registration in the WP:
2023-11-24 16:37:23
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Last update:
2025-11-13 07:14:07
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