Paper Conference

Proceedings of Building Simulation 2021: 17th Conference of IBPSA


A framework to evaluate the reliability of energy performance assessment methods using buildings databases, application to the French Residential Energy Performance Certificate

Nicolas Bernard Jean Bourbon 1,2, Thomas Recht 2, Rofaïda Lahrech 1, Mora Laurent 2
1 CSTB - Centre scientifique et technique du bâtiment, Champs sur Marne, France
2 University of Bordeaux, CNRS, Arts et Metiers Institute of Technology, Bordeaux INP, INRAE, I2M Bordeaux, F-33400 Talence, France

Abstract: The reliability of Assessment Methods of Energy Performance in Housing (AMEPH) is a major stake to boost energy-efficient renovation. Energy Performance Certificates (EPCs) represent a relevant instrument supposed to be strongly structuring for the assessment of buildings energy performance and decision support both for public and private actor. However, a lack of reliability in the methods used by the EPC is reported in several countries depending on the assessor, input data and calculation tools, etc. The French EPC tends to show an overestimation, a significant dispersion and a lack of repeatability in consumption calculations, which has lead public authorities and users to demand improvements in its reliability. Various studies have been carried out on previous calculation method but most of these studies do not make for an accurate representation of the diversity of the building stock. In this article, we propose a framework to evaluate the reliability of AMEPHs which uses recent housing databases containing a few hundred to several thousand elements. We then present the adaptation of the framework and all the materials needed to apply this framework to the French EPC calculation method.
Keywords: Energy Performance Certificate (EPC), Reliability, Housing stocks, Building energy performance simulation
Pages: 2007 - 2014