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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) International Journal of Applied Power Engineering (IJAPE) Rekayasa Mesin JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY Civil Engineering Journal JMM (Jurnal Masyarakat Mandiri) Mekanika: Majalah Ilmiah Mekanika SMART SPORT SEMAR Abdi Masya Indo-MathEdu Intellectuals Journal Automotive Experiences PAKDEMAS : Jurnal Pengabdian Kepada Masyarakat Jurnal Teknik Mesin Mechanical Xplore Jurnal Pengabdian Inovasi dan Teknologi Kepada Masyarakat Jurnal PADAMU NEGERI (Pengabdian pada Masyarakat Bidang Eksakta)
Singgih Dwi Prasetyo
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The Influence of The Power of Two Method in Mathematics Learning on Increasing Student Activity Subandi; Prasetyo, Singgih Dwi
Indo-MathEdu Intellectuals Journal Vol. 5 No. 1 (2024): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v5i1.878

Abstract

Mathematics learning aims to enhance problem-solving skills encompassing problem comprehension, method creation, execution, and result analysis. It covers numbers, geometry, calculations, and data processing. Low achievement in mathematics stems from inadequate understanding and reliance on arithmetic as a tool. Student disinterest further hampers learning. Although students may solve problems correctly, they often struggle to explain their reasoning, as observed in a class III student at SD Negeri 1 Pucangan. Student engagement is crucial in gauging learning motivation. Cooperative learning, particularly the power of two methods, fosters student collaboration, facilitating better comprehension. This approach enhances learning quality, promoting active and creative participation. Implementing the power of two cooperative learning models in class III at SD N 1 Pucangan improved student activity, shifting from adequate to good. The method's effectiveness in enhancing mathematics learning quality is evident through increased student engagement and activity levels
Optimization of solar panel orientation and tracking systems for standalone PV applications Prasetyo, Singgih Dwi; Trisnoaji, Yuki; Munir, Misbahul; Permatasari, Meirna Puspita; Mahadi, Abram Anggit; Rizkita, Marsya Aulia; Arifin, Zainal
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 16, No 4: December 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v16.i4.pp2721-2730

Abstract

The performance of photovoltaic (PV) systems is greatly influenced by the angle of arrival of sunlight and the geometric orientation of solar panels, especially in tropical regions with the potential for solar energy throughout the year. This study aims to evaluate the effect of tilt angle variation and tracking systems on energy output and performance indicators of standalone PV systems using PVsyst software. The simulation was conducted at the State University of Malang, Indonesia, by comparing four fixed-angle configurations (20°, 40°, 60°, and 80°) as well as a two-axis tracking system. The simulation results showed that the two-axis tracking system produced the highest normalized daily energy production of 6.8 kWh/kWp/day, with a performance ratio (PR) of 77.2% and a solar fraction (SF) of 97.1%, while a fixed configuration with an angle of 80° showed the lowest performance. These findings confirm the importance of selecting optimal panel orientation to maximize the efficiency of PV systems, as well as being the basis for the development of advanced research, such as field-based experiments, integration of adaptive MPPT algorithms, and economic feasibility studies in the application of PV systems in tropical and off-grid regions.
Integration of renewable energy for sustainable electric vehicle charging in Sidoarjo, Indonesia: a techno-economic perspective Choifin, Mochamad; Trisnoaji, Yuki; Arifin, Zainal; Mauludin, Mochamad Subchan; Rizkita, Marsya Aulia; Prasetyo, Singgih Dwi; Perdana, Dony
International Journal of Applied Power Engineering (IJAPE) Vol 15, No 1: March 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v15.i1.pp23-36

Abstract

This study explores the techno-economic feasibility of integrating solar photovoltaic (PV) systems for electric vehicle (EV) charging infrastructure in Sidoarjo, Indonesia. Through simulation using HOMER Pro software, both standalone PV and PV-grid hybrid configurations were evaluated under real-world EV load profiles. The analysis reveals that the PV-grid hybrid system demonstrates superior economic performance, achieving an annual energy production of 39,214 kWh, a levelized cost of energy (LCOE) of $0.3975/kWh, and a return on investment (ROI) of 62.01% over 20 years, despite a payback period exceeding 30 years. Sensitivity analysis confirms that the system remains moderately resilient under a 10% reduction in solar irradiance or a 20% increase in EV demand. The study also compares the standalone PV configuration, which, while suitable for off-grid applications, results in significant energy underutilization. Moreover, the PV-grid model supports surplus electricity sales, enhancing financial viability. These findings provide actionable insights for stakeholders, energy planners, and policymakers aiming to scale EV charging infrastructure sustainably in Indonesia’s urban environments.
Co-Authors Aditya Rio Prabowo Albert Xaverius Alfian Fahrul Yuliansyah Anugrah Akbar Arinal Falah Muhammad Azizah, Safira Rusyda Bambang Kusharjanta Budi Kristiawan Chico Hermanu B. Apribowo Chico Hermanu Brillianto Chico Hermanu Brillianto Choifin, Mochamad Dharu Feby Smaradhana Didik Djoko Susilo Dody Ariawan Dominicus Danardono Dwi Prija Dominicus Danardono Dwi Prija Tjahjana Dominicus Danardono Dwi Prija Tjahjana Dominicus Danardono Dwi Prija Tjahjana Dominicus Danardono Dwi Prija Tjahjana Dominicus Danardono Dwi Prija Tjahjana Dony Perdana, Dony Dwi Budi Santoso Endang Yuniastuti Harsito, Catur Heru Sukanto Ida Ayu Putu Sri Widnyani Imaduddin, Fitrian Johan Alfian Pradana Joko Triyono Kuncoro Diharjo Kusumawardana, Arya Lambang G H, Raymundus Lullus Mahadi, Abram Anggit Mauludin, Moch Subchan Mauludin, Mochamad Subchan Misbahul Munir Moh. Khairudin Mohd Afzanizam Mohd Rosli Mohd Afzanizam Mohd Rosli Noval Fattah Alfaiz Nuha Khairunisa Nurul Muhayat Permatasari, Meirna Puspita Pipit Wulansari Prasojo, Yudin Joko purwadi joko widodo Rahmad Rizki Nur Arifin Rendy Adhi Rachmanto Rendy Adhi Rachmanto Rendy Adhi Rachmanto Rendy Adhi Rachmanto Rizkita, Marsya Aulia Roni Prasetyo, Roni Royb Fatkhur Rizal Rumi Iqbal Doewes, Rumi Iqbal Rustam Asnawi Satria Auliansyah Subandi Sukarman Sukarman Sukmaji Indro Cahyono, Sukmaji Indro Suyitno - Suyitno Suyitno Suyitno Suyitno Suyitno Suyitno Suyitno Suyitno Syaifuddin Syamsul Hadi Taufik Ulhakim, Muhamad Teguh Triyono Trismawati Trismawati Trisnoaji, Yuki Triyono Triyono Ubaidillah Ubaidillah Ubaidillah Ubaidillah Ubaidillah Ubaidillah Ubaidillah Wahyu Purwo Raharjo Watuhumalang Bhre Bangun Wibawa Endra Juwana Wibawa Endra Juwana Wibawa Endra Juwana Wibowo Wijang Wisnu Raharjo Wiraguna, Rayie Tariaranie Yoga Yuniadi Yudin Joko Prasojo Zainal Arifin Zainal Arifin Zainal Arifin Zainal Arifin Zainal Arifin Zainal Arifin