ISO/IEC 30134 is the multi-part international standard series defining Key Performance Indicators (KPIs) for information technology data centres — providing standardised measurement methodologies for energy efficiency, renewable energy use, water consumption, and carbon performance. The series covers: PUE (Power Usage Effectiveness, 30134-2), REF (Renewable Energy Factor, 30134-3), WUE (Water Usage Effectiveness, 30134-5), ERE (Energy Reuse Effectiveness, 30134-4), CUE (Carbon Usage Effectiveness, 30134-7), and ITEEsv (IT Equipment Energy Efficiency, 30134-8).

ISO 30134 provides the measurement framework referenced by EN 50600-2-6, the EU Code of Conduct on Data Centre Energy Efficiency, the European Green Digital Coalition, and India's MeitY Data Centre Policy. Organisations using ISO 30134-aligned KPIs demonstrate credible, auditable energy performance — essential for ESG reporting, green financing, and demonstrating sustainability to enterprise clients with Scope 3 emissions reduction obligations.

🌿 Green Finance: Indian data centre operators pursuing green bonds, sustainability-linked loans, or ESG investor reporting should adopt ISO 30134 as their energy KPI framework — it provides the ICMA/LMA-accepted measurement methodology for data centre sustainability claims.