Energy efficiency compliance towards benchmarking for intermittent use religious buildings

Purpose The purpose of this study is to assess the level of energy efficiency (EE) practices and worshippers' comfort experience towards energy consumption of a selected energy retrofitted mosque. This study identifies whether the work was done on ad hoc or planned basis and to gauge the success level of the retrofit work. Design/methodology/approach Mixed method was used in this study. A selected mosques with a capacity of more than 1,000 worshippers under the Class A of classification places of assembly with operating hour ranging from 45 to 65 h and the penarafan hijau jabatan kerja raya (pHJKR) rating tool as a benchmarking for EE assessment is used. A total of 45 respondents were involved in this study to obtain their perception on comfort experience in mosque. Meanwhile, energy audit and walk-through surveys were conducted to obtain data on energy consumption. To identify whether the work was done on ad hoc or planned basis and to gauge the success level of the retrofit work, pHJKR rating tool and efficiency standard MS1525:2019 are used for benchmarking in keeping with sustainability guidelines. Findings The results of this study indicated that the EE score achieved by the mosque is good while there are still rooms for improvement to increase the higher score to the pHJKR's EE benchmarking tool. Research limitations/implications EE is one of the most important agenda under sustainable development initiatives. Part of the initial government strategy is to encourage the use public buildings in demonstrating initiatives for sustainable development to justify high capital resources investment. Mosque buildings have huge potential for this purpose because as religious public buildings for the majority Muslim community, their operations are fully funded from public funds. Selection of mosques is also driven by its unique intermittent energy consumption pattern, while early mosques adopted natural ventilation, modern mosques are often designed with mechanical ventilation (air conditioning). Practical implications An encouragement on government initiative towards sustainable development can be escalating by producing exemplary building for intermittent use pattern categories by mosque as a model. Social implications Sustainable development especially in EE becomes normal practices and energy and impact towards environment possibly be saved. Originality/value Sustainable development especially in EE becomes normal practices and energy and impact towards environment possibly be saved. This research is based on supportive national agenda by assessing EE measure for development of energy management in intermittent use buildings (mosque).