As part of the European EUB SuperHub project, funded under the Horizon 2020 programme, a new approach to assessing building energy performance has been developed, culminating in the publication of the pre-standard document CWA 18127:2024. This initiative introduces a harmonised system of Key Performance Indicators (KPIs) that expands the traditional scope of Energy Performance Certificates (EPCs), incorporating dimensions such as sustainability, digitalisation, and smart readiness. The objective is to ensure a more coherent, transparent, and practical evaluation framework across all EU Member States, in alignment with the Energy Performance of Buildings Directive (EPBD) and the European Commission’s Renovation Wave strategy.

The new methodological framework defines 21 KPIs across 10 thematic areas, covering aspects ranging from energy consumption and greenhouse gas emissions to indoor air quality and resilience to overheating. These indicators are designed to feed into a digital building passport, supported by a digital logbook that consolidates key data such as materials used, HVAC systems, and past renovations.

The adoption of CWA 18127:2024 marks a pivotal step towards the standardisation and digital transformation of EPCs in Europe, enabling more informed decisions in energy renovation, public investment, and the broader transition towards a sustainable and future-proof built environment.