Novel methodology and platform for NZEB renovation of residential buildings

Yovko Ivanov Antonov*, Per Heiselberg, Julien Egger, Flourentzos Flourentzou, Michal Zbigniew Pomianowski

*Corresponding author for this work

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review


Renovation of the existing building stock is a vital part of reaching upcoming energy savings and CO2 emission targets. The European Union (EU) continuously publishes directives and guidance to support the transition of existing buildings to nearly-Zero Energy Buildings. A method for calculation of cost-optimal levels for minimum energy performance was introduced in 2012. Its aim is to compare and select different renovation alternatives, based on energy savings and global costs. It has been successfully applied on a
package level; however, its complexity has restricted it from being used for comparing renovation alternatives between single components with the same and different functions. This paper presents a methodology for determination of a simplified value linking economical and efficiency parameters on a component level. The value allows for fast overview of cost-benefit of different renovation alternatives between components and systems. It serves a decision-making aid for compilation of renovation packages, which are further evaluated
with the cost-optimal approach. The paper also introduces novel refurbishment assessment platform that can assist decision makers with fast compilation of refurbishment packages incorporating key aspects of the
presented methodology. The current functionality of the platform is showcased at the end of the paper by a case study.
Original languageEnglish
Title of host publication15th Conference on Advanced Building Skins 26-27 October 2020, Bern, Switzerland
Number of pages11
Place of PublicationLucerne
PublisherAdvanced Building Skins
Publication date20 Jan 2021
ISBN (Electronic)978-3-9524883-0-0
Publication statusPublished - 20 Jan 2021
Event15th Conference on Advanced Building Skins - Bern, Switzerland
Duration: 26 Oct 202027 Oct 2020
Conference number: 15


Conference15th Conference on Advanced Building Skins


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