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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 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
In-depth evaluation and enhancement of a PV-wind combined system: A case study at the Engineering Faculty of Wahid Hasyim University Mauludin, Moch Subchan; Khairudin, Moh.; Asnawi, Rustam; Trisnoaji, Yuki; Prasetyo, Singgih Dwi; Azizah, Safira Rusyda; Wiraguna, Rayie Tariaranie
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 16, No 2: June 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v16.i2.pp1274-1283

Abstract

Energy sustainability is crucial for mitigating climate change and reducing dependence on fossil fuels. This research evaluates a hybrid renewable energy system combining photovoltaic (PV) technology and wind turbines to meet the electricity demand of Wahid Hasyim University's Faculty of Engineering, totalling 555,000 VA. Using HOMER Pro software, the study identifies the optimal configuration based on technical, economic, and environmental aspects. The hybrid system integrating PV, wind turbines, batteries, and converters achieves the lowest Net Present Cost (NPC) of $214,877 and a Levelized Cost of Energy (LCOE) of $0.0185/kWh, outperforming grid-only systems. Environmentally, the system significantly reduces carbon dioxide (CO2) emissions, from 559,226 kg/yr in conventional systems to 62,452 kg/yr. Solar energy contributes 56% of electricity generation, leveraging stable solar radiation of 4.28–5.54 kWh/m²/day. Additionally, an annual surplus of 156,350 kWh can be sold back to the grid, enhancing operational efficiency. This study demonstrates that hybrid renewable energy systems deliver long-term cost efficiency and significantly mitigate climate impacts. It provides a sustainable energy model for campuses in Indonesia and worldwide, particularly in regions with abundant solar resources.
Techno-Economic Analysis of On-Grid Solar Power Plants for Tulungagung Hydropower Operational Cost Savings Based on Production and Load Data Syaifuddin; Prasetyo, Singgih Dwi; Kusumawardana, Arya; Rizal, Royb Fatkhur; Munir, Misbahul; Sukarman, Sukarman; Prasetyo, Roni
Jurnal Teknik Mesin Mechanical Xplore Vol. 6 No. 1 (2025): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v6i1.10081

Abstract

The increasing energy demand and environmental challenges have accelerated the global shift toward renewable energy, with Indonesia possessing a substantial solar potential of 3,294 GW. This study investigates the techno-economic feasibility of a 40.9 kWp On-Grid Solar Power Plant  as a supplementary energy source to reduce operational costs at the Tulungagung Hydropower Plant. A techno-economic analysis was conducted using 2024 solar PV production data from the ShinePhone application and the Tulungagung Hydropower business daily report, complemented by simulations from the Hybrid Optimization Model for Multiple Energy Resources (HOMER) to identify optimal system configurations. The actual solar power plant generated 52,499.9 kWh/year, contributing 15.66% of the plant's operational load of 335,150.71 kWh and resulting in annual cost savings of IDR 58,523,260, based on a PLN tariff of IDR 1,114.74/kWh. In comparison, HOMER simulations projected a higher generation of 74,265 kWh/year, with a net present cost (NPC) of IDR 6,461,879,000 and a cost of energy (COE) of IDR 1,142.36. While the PLTS has proven technically and economically viable as a complementary energy source, its current capacity remains insufficient to fully meet the hydropower plant's operational load, indicating the need for further system optimization and potential integration of energy storage solutions.
Wahana Jembatan Panorama Pada Taman Bermain Mekarsari Boyolali untuk mendukung Perkembangan Holistik Anak Arifin, Zainal; Wijang Wisnu Raharjo; Kuncoro Diharjo; Wahyu Purwo Raharjo; Dody Ariawan; Bambang Kusharjanta; Ubaidillah; Anugrah Akbar; Singgih Dwi Prasetyo
JDISTIRA - Jurnal Pengabdian Inovasi dan Teknologi Kepada Masyarakat Vol. 3 No. 2 (2023)
Publisher : Yayasan Rahmatan Fidunya Wal Akhirah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58794/jdt.v3i2.559

Abstract

Pembelajaran anak di luar ruangan melalui taman bermain diakui memberikan dampak positif yang signifikan pada perkembangan fisik, sosial, emosional, dan kognitif anak-anak sehingga secara efektif dapat merangsang perkembangan holistik anak-anak. Taman bermain anak adalah ruang terbuka yang dirancang khusus untuk memberikan kebebasan bermain kepada anak-anak. Selain sebagai tempat bermain dan bersenang-senang, taman bermain juga merupakan wahana penting yang memberi kesempatan kepada anak-anak untuk belajar, tumbuh, dan berkembang dalam berbagai aspek kehidupan mereka. Pengabdian ini bertujuan untuk merancang desain wahana bermain jembatan panorama yang dirancang dengan mempertimbangkan faktor keselamatan, kenyamanan, dan pengembangan anak di Taman Mekarsari Desa Kaligentong, Kecamatan Gladagsari, Kabupaten Boyolali. Jembatan panorama merupakan salah satu sarana permainan anak-anak dengan berbentuk seperti jembatan gantung yang diharapkan dapat menumbuhkan sifat percaya diri yang dimiliki sehingga dapat mendukung perkembangan holistik anak. Jembatan panorama yang dirancang mengedepankan aspek keselamatan dan keindahan visual sehingga nyaman dan aman untuk digunakan.
The Photovoltaic Performance based on Radiation Intensity Examination using Experimental Study and Thermal Simulation Prasetyo, Singgih Dwi; Taufik Ulhakim, Muhamad
Jurnal Teknik Mesin Mechanical Xplore Vol. 4 No. 2 (2024): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v4i2.6141

Abstract

Solar energy is a renewable energy source that can be converted into electrical energy through photovoltaic (PV) solar cells. However, the efficiency is low, with only 15-20% depending on solar irradiation converted into electricity. The angle of the sun and the structural position of the solar cell system also affect the amount of solar radiation received. Research has been carried out to determine the effect of radiation intensity on the performance of PV solar cells using experimental methods and thermal simulation. The temperature distribution of PV cells has been studied using experimental studies and thermal simulations. The highest temperature was produced at a solar radiation intensity of 1100 W/m2 of 68.4 ⸰C for the experimental study and 69.4 ⸰C for the thermal simulation study. The highest efficiency is produced at a radiation intensity of 1000 W/m2, with the highest efficiency being 11.5%. This study analyzes the impact of radiation intensity on the electrical efficiency of solar PV cells using two-way ANOVA. The radiation intensity has a P-value of 1.85E-05, which indicates an influence on the electricity produced. There is an MS value of research variation smaller than the MS error of 7.22E-07, indicating an interaction between the two variables
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.
Design of a Solar Power Plant System for Government Buildings in the Ibu Kota Nusantara of Indonesia Using HOMER Optimization Mohd Rosli, Mohd Afzanizam; Mahadi, Abram Anggit; Harsito, Catur; Prasetyo, Singgih Dwi
Mekanika: Majalah Ilmiah Mekanika Vol 24, No 1 (2025): MEKANIKA : Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v24i1.92798

Abstract

Indonesia's social and political landscape necessitates a balanced distribution of development and a restructuring of its population and industries. In response, the government has relocated the capital from Jakarta to Ibu Kota Nusantara (IKN) in East Kalimantan, aiming to alleviate the pressures on the central city. Given the region's abundant solar energy resources, this paper explores the potential for investing in solar energy systems within government buildings to align with the innovative city initiative. The study employs the Hybrid Optimization Model for Electric Renewables (HOMER) to evaluate the feasibility of the government's solar energy plan. This simulation tool analyzes investment costs, energy generation potential, and economic viability. The HOMER configuration includes solar panels, batteries, and an inverter integrated with the on-grid electrical system, tailored to meet government building requirements. Simulation results indicate that the proposed model can generate approximately 828,980 kWh annually, with a total energy consumption of around 643,257 kWh. The estimated investment cost is IDR 20,581,290,000, with a production cost of IDR 1,407.11 per kWh and a net payback period of about seven years. This analysis suggests that solar energy systems are well-positioned to thrive in IKN's emerging business environment.
Optimizing Energy Efficiency in Vertical Axis Wind Turbines: A CFD Analysis of Inlet Velocity and Fluid Type Impact Nubli, Haris; Baek, Seung Jun; Nur Afiqoh, Nabella Sofa; Trisnoaji, Yuki; Prasetyo, Singgih Dwi
Mekanika: Majalah Ilmiah Mekanika Vol 24, No 2 (2025): MEKANIKA : Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v24i2.104188

Abstract

The development of Vertical Axis Wind Turbines (VAWTs) has become a key focus in renewable energy utilization due to their ability to operate at low wind speeds and their simple design. This study aims to analyze the effects of inlet velocity variations and fluid physical properties on flow patterns, turbulence, and kinetic energy in VAWTs. The simulation was conducted using the Computational Fluid Dynamics (CFD) method, based on ANSYS Fluent, for a 2D turbine model with a diameter of 12 cm. Inlet velocity variations of 10, 11, 12, 13, and 14 m/s were tested using three types of fluids: air, helium, and hydrogen. The results show that increasing inlet velocity transforms the flow pattern from stable to complex, with greater turbulence forming behind the cylinder. Air exhibited the highest kinetic energy at low to medium velocities, ranging from 10 to 12 m/s, which was up to 24.7% higher than that of helium and 3.8% higher than that of hydrogen. At higher velocities, 13–14 m/s, the kinetic energy difference among the three fluids decreased to less than 1.5%. Furthermore, outlet velocity was consistently higher than inlet velocity for all fluids, with hydrogen achieving the highest acceleration at 14 m/s.
Co-Authors Aditya Rio Prabowo Albert Xaverius Alfaiz, Noval Fattah Anugrah Akbar Arinal Falah Muhammad Azizah, Safira Rusyda Baek, Seung Jun Bambang Kusharjanta Budi Kristiawan Budi Kristiawan, Budi Budiana, Eko Prasetya Chico Hermanu B. Apribowo Chico Hermanu Brillianto Chico Hermanu Brillianto Choifin, Mochamad Danardono Dwi Prija Tjahjana, Dominicus 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 Dony Perdana Dwi Aries Himawanto Dwi Budi Santoso Dwi Prija Tjahjana, Dominicus Danardono Endang Yuniastuti Farid, Muh. Farhan Atha Fernandio Prasetyo, Tyo Febrino Haji, Mohammed M. Harsito, Catur Heru Sukanto Ida Ayu Putu Sri Widnyani Imaduddin, Fitrian Indri Yaningsih Johan Alfian Pradana Joko Triyono Kandimba, Enock Michael Kombe, Godlisten Gladstone Kuncoro Diharjo Kusumawardana, Arya Lambang G H, Raymundus Lullus Lumban Gaol, Mangisi Larixon Mahadi, Abram Anggit Mauludin, Moch Subchan Mauludin, Mochamad Subchan Misbahul Munir Moh. Khairudin Mohd Afzanizam Mohd Rosli Mohd Rosli, Mohd Afzanizam Noval Fattah Alfaiz Novena, Nindia Nova Nubli, Haris Nuha Khairunisa Nur Afiqoh, Nabella Sofa Nurul Muhayat Permatasari, Meirna Puspita Pipit Wulansari Prasojo, Yudin Joko purwadi joko widodo Rachmanto, Rendy Adhi Rahmad Rizki Nur Arifin Ramanda, Raihan Danu 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 Shame, Buruhan Haji Sinaga, Febrianto 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 Wicaksana, Putra Adil Wijang Wisnu Raharjo Wijayanta, Agung Tri Wiraguna, Rayie Tariaranie Yoga Yuniadi Yudin Joko Prasojo Yuliansyah, Alfian Fahrul Zainal Arifin Zainal Arifin Zainal Arifin Zainal Arifin Zainal Arifin