Wildan Arasid
Politeknik Negeri Bandung, Indonesia

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An IoT-based smart home prototype: Enhancing energy efficiency, water conservation, and sustainability education Wildan Arasid; Diky Zakaria; Cep Ubad Abdullah
Journal of Environment and Sustainability Education Vol. 3 No. 3 (2025)
Publisher : Education and Development Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62672/joease.v3i3.148

Abstract

The rapid development of the Internet of Things (IoT) has driven the emergence of smart home innovations that not only provide convenience but also contribute to energy efficiency and resource conservation. This study aims to develop an IoT-based smart home prototype using the ESP8266-12e module to control lights and solenoid valves that function as water faucets. The system operates in two modes: automatic mode, utilizing light-dependent resistors (LDRs) and ultrasonic sensors, and manual mode through a web-based control interface. The method in this study uses an experimental method consisting of a literature review, hardware and software design, implementation, and testing. The results show that the system functions reliably and remains stable within a Wi-Fi connection range of up to 21 meters. Furthermore, this prototype shows potential as a project-based learning medium in science and technology education, particularly in the context of sustainability education. By integrating the concepts of electricity and water conservation, this study contributes to increasing scientific literacy while supporting sustainable household practices.
Readiness of PV-Hydrogen: An environmental sustainability analysis in Sulawesi Tjatur Udjianto; Teguh Sasono; Wildan Arasid; Rolf Gisler
Journal of Environment and Sustainability Education Vol. 4 No. 2 (2026)
Publisher : Education and Development Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62672/joease.v4i2.238

Abstract

In line with the Indonesian Government's efforts to achieve decarbonization and net-zero emissions before 2060, the transition from fossil fuels to renewable energy sources has been increasingly pursued. One of the technologies employed is the hydrogen-to-power application, which promotes the utilization of photovoltaic generators, batteries, and hydrogen, particularly in Eastern Indonesia (PV-Hydrogen). The objective of this study is to obtain feasibility recommendations for the PLN (State Electricity Company) network in Sulawesi that will be used for distributing electricity generated from PV-Hydrogen through power flow studies, short-circuit current studies, and system stability analysis. This study was conducted to ensure the readiness and capability of the existing network in accommodating PV-Hydrogen generators. The power flow simulation results for the Selayar system indicate that under existing conditions, some end-of-feeder loads exhibit voltage drops still within the range above 18 kV, with the farthest point at Appatana having the lowest voltage at approximately 18.21 kV. The existing 20 kV network is generally ready to receive power supply from renewable energy generators, particularly PV-Hydrogen. To accommodate this integration, a switching substation or express feeder needs to be constructed to distribute power from PV-Hydrogen. The savings or reduction in carbon emissions resulting from replacing diesel power plants with PV-Hydrogen is approximately 128,665 tons of CO2/year.