Cost Optimum Design of a Tropical Near Zero Energy House (nZEH)

Abstract

Housing development, as part of economic development, must be supported by energy availability in order to achieve sustainable growth. One of the approaches to supporting renewable energy promotion is to design and build energy efficient housing. However, the optimal design of such buildings faces two conflicting requirements, namely the consideration of cost effectiveness and minimum environmental impact. The high costs of energy efficient buildings, such as the near Zero Energy House (nZEH), are due to the high price of the materials and equipment used, such as photovoltaic (PV) panels, insulation and other supporting materials. Indonesia is situated on the equator and benefits from sunlight throughout the year. Nonetheless, this potential has not been fully realized, as the solar-generated energy technology for housing comes at a high price. Therefore, the objective of this study is to find the cost optimum combination of validated design variables for an nZEH which suit the tropical climate conditions of Indonesia. Experiments and a case study are employed in the study to validate the design variables for an optimum nZEH design, which include building orientation, PV panels, fenestration, and passive design. The study finds that the cost optimum nZEH design achieved 72 percent site-energy savings and 21 percent savings in the total Net Present Value (NPV) of life cycle costs, with insignificant incremental initial construction costs in enhancing the design.

Filtered Leakage Current Measurement for Various Loads

“…LED lamps are compared with CFL lamps in Latief et al (2019),based onits DC characteristic, LED has been chosen in this experiment. The filter design for the RCD is initially described before giving an overview of our monitoring system with the discussed IoT system and Python server.…”

“…In this work, the approach is applied to Light-Emitting Diode (LED) based lamps in comparison with Compact Fluorescent Lamp(CFL), as done in Latief et al (2019), because of the low cost of these lamps. We start by describing a filter design for the RCD before outlining our monitoring system with the discussed IoT system and Python server.…”

Kelayakan Finansial Near Zero Energy Building Dengan Peraturan Kementerian Energi Dan Sumber Daya Mineral No. 49 Tahun 2018 Mengenai Insentif Energi Terbarukan

“…Setiap unit rumah susun sudah dilengkapi dengan 1 kamar mandi per unit, sehingga total luas 1 unit adalah 18 m 2 . Spesifikasi material bangunan yang digunakan dalam penelitian ini menggunakan spesifikasi desain dan material Zero-Energy Building yang sudah dioptimalkan secara biaya dan konsumsi energi (Latief, Berawi, Koesalamwardi, Sagita, & Herzanita, 2019;Koesalamwardi & Rostiyanti, 2019).…”

The Analysis of Tall Building Energy Performance by Using EDGE Application towards Net Zero Energy Building (NZEB)

“…Indonesia is a tropical country located on the equator with sunshine all year round, this can be a potential and a challenge in itself in developing the NZEB design. These potentials and challenges include the use of photovoltaic (PV) panels to obtain energy, as well as the relatively high use of air conditioning which can be overcome by implementing passive design strategies to reduce heat radiation [6]. The research shows that the application of the NZEB concept can reduce the index of electricity consumption by 98.38% from 179.6 kWh/year.m 2 to 2.9 kWh/year.m 2 .…”