Exploring the ambiguity associated with the actual magnitude of the energy performance gap in buildings

Odeh, Khaleel and Parvaz, Md and Jakkula, Jitendra and de Wilde, Pieter and McElroy, Lori Barbara; Moreno-Rangel, Alejandro and Kumar, Bimal, eds. (2025) Exploring the ambiguity associated with the actual magnitude of the energy performance gap in buildings. In: EG-ICE 2025. University of Strathclyde Publishing, GBR, pp. 605-614. ISBN 9781914241826 (https://doi.org/10.17868/strath.00093252)

[thumbnail of Odeh-etal-EG-ICE-2025-Exploring-the-ambiguity-associated-with-the-actual-magnitude]
Preview
Text. Filename: Odeh-etal-EG-ICE-2025-Exploring-the-ambiguity-associated-with-the-actual-magnitude.pdf
Final Published Version
License: Creative Commons Attribution 4.0 logo

Download (1MB)| Preview

Abstract

This paper investigates the magnitude of the energy performance gap in buildings, defined as the discrepancy between measured and simulated energy use. It highlights the ambiguity surrounding the actual size of this gap, particularly given the variety of benchmarks against which actual energy consumption can be compared. A comprehensive case study is presented, involving the development of four thermal energy models using four different dynamic energy simulation tools to further examine discrepancies among simulation tools. Multiple simulation scenarios are explored to assess how varying inputs influence the size of the gap. The results reveal significant differences between simulated results from different tools for heating and total electricity consumption, as well as notable deviations from measured energy performance.

ORCID iDs

Odeh, Khaleel, Parvaz, Md, Jakkula, Jitendra, de Wilde, Pieter and McElroy, Lori Barbara ORCID logoORCID: https://orcid.org/0000-0003-4472-9891; Moreno-Rangel, Alejandro and Kumar, Bimal