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DOI10.1016/j.enpol.2019.111085
Measuring the thermal energy performance gap of labelled residential buildings in Switzerland
Cozza S.; Chambers J.; Patel M.K.
Date Issued2020
ISSN0301-4215
Volume137
Other AbstractThis paper addresses the thermal Energy Performance Gap (EPG), defined as the difference between a building's theoretical and actual energy consumption for thermal purposes (heating and hot water). Successful energy policies require estimates of the energy saving potential of the building stock. It is the objective of this work to analyse whether and to what extent an EPG exists in residential buildings in Switzerland. The database of the Swiss Cantonal Energy Certificate for Buildings was used, covering over 50 000 buildings. The median EPG was found to be −11% (i.e. actual consumption lower than theoretical) but varied across ratings from 12.4% (B-label) to −40.4% (G-label). Buildings with low energy ratings tend to consume significantly less than expected, while buildings with high rating tend to consume slightly more than expected. For the A-labels buildings (0.5% of the total) an EPG of −6.2% was found, suggesting that the very high-performance buildings may be more robust to the EPG. Simplified scenarios to illustrate the impact of this EPG on total consumption are presented, which highlight the challenge of meeting the Swiss Energy Strategy 2050 with a realistic renovation rate. The importance of low carbon heat supply for buildings is also discussed. © 2019 Elsevier Ltd
enkeywordsActual consumption; Energy label; Energy performance gap; Environmental policy target
Subject AreaEnergy utilization; Environmental protection; Housing; Labels; Thermal energy; Actual consumption; Energy labels; Energy performance; Energy saving potential; Energy strategy; Environmental policy; High performance buildings; Residential building; Energy efficiency; building; energy conservation; energy use; environmental policy; performance assessment; thermal power; Switzerland
Language英语
scopus keywordsEnergy utilization; Environmental protection; Housing; Labels; Thermal energy; Actual consumption; Energy labels; Energy performance; Energy saving potential; Energy strategy; Environmental policy; High performance buildings; Residential building; Energy efficiency; building; energy conservation; energy use; environmental policy; performance assessment; thermal power; Switzerland
journalEnergy Policy
Document Type期刊论文
Identifierhttp://gcip.llas.ac.cn/handle/2XKMVOVA/118225
AffiliationChair for Energy Efficiency, Institute for Environmental Sciences and Department F.-A. Forel for Environmental and Aquatic Sciences, University of Geneva, Switzerland
Recommended Citation
GB/T 7714
Cozza S.,Chambers J.,Patel M.K.. Measuring the thermal energy performance gap of labelled residential buildings in Switzerland[J],2020,137.
APA Cozza S.,Chambers J.,&Patel M.K..(2020).Measuring the thermal energy performance gap of labelled residential buildings in Switzerland.Energy Policy,137.
MLA Cozza S.,et al."Measuring the thermal energy performance gap of labelled residential buildings in Switzerland".Energy Policy 137(2020).
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