Abstract
ABSTRACT Worldwide, the building sector is responsible for consuming more than 36% of the final global energy and produces 39% of carbon dioxide emissions. Accordingly, sustainable retrofit is an important method to achieve energy reduction and sustainable development. However, the lack of information on retrofit technologies and their benefits trigger stakeholder’s opposition to retrofit actions. The Energy Performance Certificate tool can be used to overcome the knowledge gap and boost energy saving by strengthening its recommendation report with retrofit technologies for energy performance. Therefore, this paper attempts to determine the best retrofit technologies to be highlighted in the Energy Performance Certificate’s recommendation report by considering stakeholder’s opinions. For this purpose, a model based on Quality Function Deployment has been developed. The model analyzes the data regarding stakeholder’s expectations when deciding to retrofit, and the potential retrofit technologies used. To validate the applicability of the proposed model, a case study was conducted in Romania. The findings are expected to contribute to improving the quality of the Energy Performance Certificate, as reflecting stakeholder’s opinions combined with sustainable concepts to achieve significant energy savings.
Highlights
This chapter briefly presents the retrofit project importance in achieving significant energy saving in the construction industry, and its relationship with the Energy Performance Certificate (EPC)
These points should be highlighted during the development of EPC’s recommendation report as they have a higher potential to fulfill the needs valued by the users
This study suggests to the building inspection representative (AEA) that using the proposed house of quality (HoQ) model to analyze stakeholder’s needs will allow to better incentives for them to retrofit
Summary
This chapter briefly presents the retrofit project importance in achieving significant energy saving in the construction industry, and its relationship with the Energy Performance Certificate (EPC). In the last few decades, numerous countries have introduced energy performance certification as a key policy instrument that can help the government to reduce energy consumption in the building sector (IEA 2010; Park et al 2015). This certification process helps the consumers in achieving a specified level of energy performance in their building. The EPC contains information about specific energy consumption related to space heating, domestic hot water installations, lighting, mechanical ventilation, and space cooling This information is enough to evaluate the energy performance of the certified building, but the detailed technical information, which should be provided in the EPC’s annex, is often incomplete and retrofit recommendations often are missing. By this case study, it is intended to shape a better structure of the Romanian EPC by improving the recommendations part, taking into consideration the owner and tenant’s opinion
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