Uncertainties in Non-Domestic Energy Performance Certificate Generating in the UK

Shiva Amirkhani, Ali Bahadori-Jahromi, Anastasia Mylona, Paulina Godfrey, Darren Cook, Hooman Tahayori and Hexin Zhang
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Shiva Amirkhani: Department of Civil Engineering and Built Environment, School of Computing and Engineering, University of West London, London W5 5RF, UK
Ali Bahadori-Jahromi: Department of Civil Engineering and Built Environment, School of Computing and Engineering, University of West London, London W5 5RF, UK
Anastasia Mylona: Research Department, the Chartered Institution of Building Services Engineers [CIBSE], London SW12 9BS, UK
Paulina Godfrey: Energy and Environment, Engineering Operations EMEA, Hilton, Watford WD24 4QQ, UK
Darren Cook: Engineering Operations EMEA, Hilton, Watford WD24 4QQ, UK
Hooman Tahayori: Department of Computer Science & Engineering and Information Technology, School of Electrical and Computer Engineering, Shiraz University, Shiraz 71438-51154, Iran
Hexin Zhang: School of Engineering and the Built Environment, Edinburgh Napier University, Edinburgh EH10 5DT, UK

Sustainability, 2021, vol. 13, issue 14, 1-19

Abstract: In light of the recent launch of the Minimum Energy Efficiency Standard targeting the energy performance of commercial buildings, this study compares the energy performance certificates of three UK hotels generated by two different software, EDSL TAS and SBEM, both accredited by the UK government for the purpose. Upon finding the results discrepant, the study finds that the two software’s different assumptions for the air permeability rate contribute to the discrepancy. While modifying this value makes the results from the two software more aligned, further issues regarding the validation process arise. The study continues to find that the underlying issue can be found within the National Calculation Methodology’s assumption about domestic hot water consumption in hotels. These assumptions are compulsory to follow when generating a non-domestic energy performance certificate in the UK, therefore, any uncertainties within them can affect all the buildings seeking an energy performance certificate within that sector. Finally, the study discusses that, for meeting the carbon dioxide mitigation goals, it is necessary to make changes to the current procedure of energy performance certificate generating in the UK to increase its reliability.

Keywords: minimum energy efficiency standard; MEES; energy performance certificate; EPC; non-domestic; hotels; validation; compliance modeling (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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