Energy Performance Certificate Classes Rating Methods Tested with Data : How Does the Application of Minimum Energy Performance Standards to Worst-Performing Buildings Affect Renovation Rates, Costs, Emissions, Energy Consumption?

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Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2022-10
Major/Subject
Mcode
Degree programme
Language
en
Pages
19
Series
Energies, Volume 15, issue 20
Abstract
Energy renovations of the building stock are a paramount objective of the European Union (EU) to combat climate change. A tool for renovation progress monitoring is energy performance certificate (EPC) labelling. The present study tested the effect of different EPC label classifications on a national database, which comprises ~25,000 EPC values from apartment buildings, detached houses, office buildings, and educational, commercial, and service buildings. Analysing the EPC classes labelling resulting from four different EU methods, we estimated the annual renovation rates, costs, energy savings, and CO2 emissions reduction that would affect the national building stock if each of them was adopted, to fulfil the European Climate Target Plan by the year 2033. The ISO 52003-1:2017 two-point and one-point methods determined a very uneven distribution of renovation rates, from 0.45% to ~9%. Conversely, the Directive 15% recently proposed in COM/2021/802 with uniform rates determined smaller differences and standarddeviation, not pushing renovations above 3.70%, namely a rate that once fine-tuned can stimulate realistic, yet effective renovation campaigns. The major differences in renovation rates provided by the studied methods show the need for a harmonized strategy such as the Directive proposal to enable achievement of European targets.
Description
| openaire: EC/H2020/856602/EU//FINEST TWINS Funding Information: Support is acknowledged from the European Regional Development Fund via the Estonian Centre of Excellence in Zero Energy and Resource Efficient Smart Buildings and Districts ZEBE, grant 2014-2020.4.01.15-0016, from the Estonian Research Council through the grants PSG409, PRG658, and DigiAudit, from the Estonian Ministry of Education and Research and European Regional Fund (grant 2014-2020.4.01.20-0289), and by the European Commission through the H2020 project Finest Twins (grant No. 856602). Publisher Copyright: © 2022 by the authors.
Keywords
carbon emissions, energy efficiency, Energy Performance Building Directive (EPBD), Energy Performance Certificates (EPC), European Green Deal, statistical analysis
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Citation
Ferrantelli , A & Kurnitski , J 2022 , ' Energy Performance Certificate Classes Rating Methods Tested with Data : How Does the Application of Minimum Energy Performance Standards to Worst-Performing Buildings Affect Renovation Rates, Costs, Emissions, Energy Consumption? ' , Energies , vol. 15 , no. 20 , 7552 . https://doi.org/10.3390/en15207552