Summary - L.1312 (07/2026) - Guidelines on multi-dimensional environmental metrics and management for data centres

Recommendation ITU-T L.1312 establishes a multi-dimensional framework for assessing the environmental performance of data centres across their life cycle. It defines a set of metrics covering energy efficiency, resource efficiency, greenhouse gas emissions and environmental impact, and provides a method to aggregate these into a comprehensive evaluation metric. In addition, it identifies key metrics across life cycle stages and offers guidance for their effective management, supporting improved environmental sustainability and informed decision-making for data centre design and operation.