Information technology — Data centres key performance indicators Part 2: Power usage effectiveness (PUE) (Edition 2, 2026)

What is ISO/IEC 30134-2:2026 on power usage effectiveness in data centres?
ISO/IEC 30134-2:2026 defines Power Usage Effectiveness (PUE), the globally recognized key performance indicator (KPI) for quantifying how efficiently a data centre uses energy. As digital infrastructure continues to grow and power consumption becomes a growing concern, PUE provides organizations with a standardized way to measure the energy performance of their data centres and identify opportunities for improvement.

This updated edition includes new guidance for mixed-use buildings, updated measurement requirements, and greater clarity around unaccounted energy and on-site generation.

Why is measuring power usage effectiveness (PUE) important?
With demand for cloud computing, streaming, and AI skyrocketing, data centres have become critical, and energy-intensive, infrastructure. Governments and businesses alike are under increasing pressure to optimize energy use, reduce emissions, and meet sustainability goals. PUE helps organizations do just that by tracking how much energy is used by computing equipment compared to total facility energy consumption.

Used correctly, PUE enables smarter design, investment, and operations decisions, whether you’re operating a hyperscale data centre or managing a small enterprise facility.
General information
Status : Published
Publication date : 2026-01
Stage : International Standard published
Edition : 2
Number of pages : 35

ISO/IEC

ISO/IEC 23008-3:2026

ISO/IEC 22460-3:2026

ISO/IEC TS 27103:2026

ISO/IEC TR 9858:2026

ISO/IEC 18181-2:2026

ISO/IEC 8808:2026

ISO/IEC 9995-1:2026

ISO/IEC TS 19770-13:2026

ISO/IEC 19566-6:2026

ISO/IEC 30134-2:2026

ISO/IEC TS 20071-40:2026

ISO/IEC 17020:2026