Green building certification and its correlation to building energy index: Malaysia commercial green building

Green building is the spine of the Sustainable Development Goals. It is supported by their rating tools that cover energy efficiency as a part of the indicator. The paper authored to identify design efficiency of green buildings in terms of energy performance. Therefore, the value of Building Energy Index for each building and level of association between Building Energy Index and tier points of green rating for buildings will be identified using correlation value. The first objective is to calculate the Building Energy Index of the commercial green building using the standard formula of MS1525:2019. Secondly is to calculate the correlation between the Building Energy Index and total tier of green rating certification points. All buildings consist of office, retail, industrial and institution buildings were analysed are under the average standard of MS1525:2019. Tier of green rating certification points divided to Platinum, Gold, Silver and Bronze rankings. In contradiction with the total tier points of green rating, it is found that the higher the tier points, the better the Building Energy Index of a green building as the correlation results between Building Energy Index and tier point of green rating indicates the negative correlation relationship for the case study covering different types of building at 0.57.