First evidences of energy performance certificate operational rating: The case of Cyprus

Abstract

AbstractThis study aims to introduce the first pieces of evidence of an operational rating scheme for energy performance certificates for the case of Cyprus, an EU member state which conducts buildings classification with asset rating. For the purpose of this study, a case building was monitored for over 12 months in Cyprus, recording over 60 sensors within the building related to heating, cooling, lighting, and appliances. A set of operational indicators were extracted and demonstrated with the purpose of establishing a dataset of operational measurements for buildings in Cyprus. Normalization practices related to occupancy and weather correction factors are also discussed. Following the guidelines of ISO 52003 on the operational rating of buildings, the study concludes with the definition of representative values for the actual energy performance of buildings in Cyprus, delivering typical operational rates for the Cypriot building stock. The case study building is also examined, with regard to its operational rating, based on the average value of the Cypriot building stock. This study aspires to set the grounds for the development of an operational rating scheme for the island state of Cyprus based on best practices and the normative framework for energy-efficient buildings.