NEARLY ZERO-ENERGY MULTIPURPOSE BUILDING FOR DESA HARAPAN BARU IN EAST KALIMANTAN

Dany Perwita Sari, Fariz Maulana Riza Nulhaq, Mutmainnah Sudirman, Dita Anggun Lestari, M. Anggi Sanusi

Abstract


Introduction. Desa Harapan Baru, one of the traditional villages in East Kalimantan, is located in a remote coastal area. Limited transportation access, lack of clean water, and poor environmental hygiene are among the major issues faced by the community. As a result, villagers rely on natural resources available around them — such as ulin timber for construction and generators for electricity supply. However, insufficient knowledge of construction practices and reforestation has negatively affected the environment, contributing to flooding in the area. Furthermore, since the generators are situated in a remote location, fuel prices have doubled. Purpose of the study. This study aims to design a nearly zero-energy multipurpose building (nZEMB) that aligns with local traditions and community needs. Besides improving the local economy, the project intends to raise awareness about sustainability. Methods. Several methods were employed during the design process. First, an assessment of local behavior and cultural practices was conducted to ensure easier community adaptation to new technologies. Solar PV was then selected and installed on the nZEMB roof. PV performance was simulated using PVsyst, computational fluid dynamics (CFD) analysis was carried out with Ansys Fluent, and energy efficiency was evaluated using DesignBuilder. Results. The renewable energy system — consisting of 17 solar panels — can fully meet the energy demand of the nZEMB in Desa Harapan Baru. Total daily energy consumption is 59.19 kWh, while the solar panels can generate up to 120 kWh. Additionally, incorporating traditional roof openings and a raised-floor design enhances natural airflow and reduces overall energy use.

Keywords


nearly zero-energy building; remote village; energy efficiency; tropical climate; Indonesian traditional architecture; East Kalimantan

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References


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