Exposing the limits in the residential building energy performance certification model

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Energy Reports Pub Date : 2025-07-18 DOI:10.1016/j.egyr.2025.07.011

Constantinos Vassiliades , Ioannis Vardopoulos , Giovanni Barone , Mattheos Santamouris , Soteris Kalogirou

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Abstract

This study examines the energy performance of residential buildings in Cyprus, focusing on the accuracy of the iSBEM-Cy Energy Performance Certification (EPC) system. Cyprus presents a unique context due to its Mediterranean climate and aging building stock, constructed mostly between 1980 and 2000 without energy efficiency regulations. This research investigates the discrepancies between simulated and actual energy consumption in typical Cypriot homes. Previous studies have highlighted the limitations of current EPC models, often showing significant variances between predicted and real-world energy usage. Using a comparative analysis, this study collects data from 15 residential units, examining heating, cooling, lighting, and hot water energy use. The results reveal notable differences, particularly in cooling loads, suggesting the need for improved modelling of user behaviour and local climate conditions. This research underscores the importance of accurate EPCs for effective policy-making and sustainable building practices, contributing to enhanced energy efficiency and reduced greenhouse gas emissions in the building sector. Future endeavours should prioritize integrating granular behavioural and climate-specific data to refine energy certification models further.

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暴露住宅建筑节能认证模式的局限性

本研究考察了塞浦路斯住宅建筑的能源性能，重点关注iSBEM-Cy能源性能认证（EPC）系统的准确性。由于其地中海气候和老化的建筑，塞浦路斯呈现出独特的环境，这些建筑大多建于1980年至2000年之间，没有能源效率法规。本研究调查模拟和实际能源消耗之间的差异，在典型的塞浦路斯家庭。先前的研究强调了当前EPC模型的局限性，通常显示预测和实际能源使用之间存在显着差异。通过比较分析，本研究收集了15个住宅单位的数据，检查了供暖、制冷、照明和热水的能源使用情况。结果显示了显著的差异，特别是在冷却负荷方面，这表明需要改进用户行为和当地气候条件的建模。这项研究强调了准确的epc对于有效决策和可持续建筑实践的重要性，有助于提高建筑部门的能源效率和减少温室气体排放。未来的工作应优先考虑整合具体的行为和气候数据，以进一步完善能源认证模式。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Energy Reports Energy-General Energy

CiteScore

8.20

自引率

13.50%

发文量

2608

审稿时长

38 days

期刊介绍： Energy Reports is a new online multidisciplinary open access journal which focuses on publishing new research in the area of Energy with a rapid review and publication time. Energy Reports will be open to direct submissions and also to submissions from other Elsevier Energy journals, whose Editors have determined that Energy Reports would be a better fit.