Examining energy efficiency requirements in building energy standards: Implications of sustainable energy consumption

ABSTRACT Energy efficiency factors in building codes and standards are crucial components that are prescribed to buildings to augment their energy efficiency. The objective of this study was to prioritize these vital energy efficiency factors. The present study derives its motivation from energy design and execution professionals, who face the challenge of selecting certain energy factors that may result in a trade-off over other factors. A fuzzy set theory with a decision-making trial and evaluation laboratory (DEMATEL) methodology was employed to obtain the results. A ranked list of prioritized energy efficiency factors is one of the key contributions of this research. We demonstrate that energy efficiency factors can be evaluated according to the degree of their importance. Based on the results, it was concluded that outdoor and indoor climatic conditions, air conditioning systems, orientation of buildings, and ventilation are the four most significant and highest-ranked factors that affect the energy efficiency of a building.