Typical Building and Energy Consumption Pattern of High School Buildings in Makassar, Indonesia

As a country that implements sustainable development, Indonesia sets goals for energy efficiency, especially in the building sector. School buildings as representative building stock are the target of this study. The surveys and data collection were done from 28 high schools in Makassar. In the early stage of energy efficiency design, it is important to investigate the actual condition of school buildings as a foundation for further studies in energy consumption and energy efficiency planning. This paper comprehensively analyzes a typical school building, energy consumption patterns, and constant usage. Besides that, the effect of building conditions on school energy consumption is discussed. The findings of this study indicate that typical school buildings are usually in the south direction where site plan adjacent to the buildings around could lead to some challenges in energy efficiency. The energy consumption pattern reveals two categories, Category 1 has high fluctuation for monthly energy consumption and Category 2 has relatively flat consumption. Thus, two categories may have different site conditions. The study also found that the constant energy use, which assumes as a lighting energy consumption, is 5.87–7.78 W/m² or 15.22–20.17 kWh/m² per year.