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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) International Journal of Applied Power Engineering (IJAPE) Jurnal Konversi Energi dan Manufaktur IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)
Yuki Trisnoaji
State University of Malang
Aerospace Engineering Automotive Engineering Control & Systems Engineering Electrical & Electronics Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Sustainable Energy Transition in Remote Islands: Evaluating Wind–Solar Hybrid Systems to Support Commercial Green Tourism on Kei Kecil Island Saika Khoolish Rochma Fa’alih; Muhammad Rafif Dzaky Abdad; Novita Vadina Marta Ria; Wildan Yusril Nurhuda Rizkiawan; Yuki Trisnoaji
Jurnal Konversi Energi dan Manufaktur Vol. 11 No. 1 (2026)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.11.1.2

Abstract

This study aims to analyze the techno-economic feasibility of a hybrid microgrid system designed to support commercial green tourism infrastructure on Kei Kecil Island, Southeast Maluku. The research focuses on evaluating the investment feasibility of adding a 99 kW wind power plant to an existing system comprising photovoltaic (PV), diesel generators, and batteries. The methodology employs HOMER Pro simulation to assess key financial indicators and environmental impacts, with a particular emphasis on carbon emission reduction. Simulation results indicate that the proposed hybrid scenario offers a highly profitable investment strategy, characterized by a high return on investment (ROI) and a rapid payback period of under five years. These findings confirm that integrating wind energy not only significantly increases the renewable energy fraction but also suppresses the cost of energy to a competitive level compared to conventional generation. The novelty of this study lies in the specific analysis of wind turbine intervention on a brownfield architecture in a remote island setting, distinguishing it from typical greenfield design studies. This research provides a significant contribution to policymakers and investors as a validation model for energy transition supporting sustainable tourism in archipelagic regions.
Integration of renewable energy for sustainable electric vehicle charging in Sidoarjo, Indonesia: a techno-economic perspective Mochamad Choifin; Yuki Trisnoaji; Zainal Arifin; Mochamad Subchan Mauludin; Marsya Aulia Rizkita; Singgih Dwi Prasetyo; Dony Perdana
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.
Simulasi dan Pembuatan Prototipe Generator Listrik Bertenaga Langkah Mekanis untuk Aplikasi Energi Terbarukan Nabella Sofa Nur Afiqoh; Yuki Trisnoaji; Nindia Nova Novena; Muh Farhan Atha
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 3 (2025): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i3.329

Abstract

The design and fabrication of a Mechanical Footstep Power Generator was developed as an innovative approach to harness kinetic energy from footsteps and convert it into electrical energy. Using a fabrication analysis and Design for Assembly (DFA) method, the prototype was designed to be both efficient and easy to assemble. The system consists of nine primary components, including the top plate, bottom plate, gear plate, gear, pinion, spring, dynamo (DC), long bolt M12, and nut. Fabricated parts were processed through tapping, drilling, milling, grinding, shaping, and chamfering, while other components were commercially purchased. DFA analysis indicated a medium level of assembly complexity, with potential errors mitigated by applying error proofing and systematic assembly guidelines. Experimental testing demonstrated a consistent increase in electrical output corresponding to the number of steps applied, starting from 2.96 V and 0.0074 W at the first step, reaching 5.71 V and 0.051961 W at the twentieth step. These results confirm that the prototype can reliably convert mechanical energy into electrical energy, though its application is currently limited to low-power usage. Nevertheless, the system presents significant potential for future development aimed at improving efficiency, capacity, and broader applicability in renewable energy solutions.
Tinjauan Komprehensif Teknologi Pemulihan Panas Terbuang (Waste Heat Recovery) pada Sistem Boiler untuk Peningkatan Efisiensi dan Reduksi Emisi Muhammad Rafif Dzaky Abdad; Saika Khoolish Rochma Fa’alih; Wildan Yusril Nurhuda Rizkiawan; Muhamad Fraja Dwi Putra; Yuki Trisnoaji
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 3 (2025): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i3.352

Abstract

This systematic literature review examines the application of Waste Heat Recovery (WHR) technologies in boiler systems to improve thermal efficiency and reduce CO₂ emissions. Using the PRISMA 2020 framework, 20 relevant studies published between 2010 and 2025 were selected through predefined eligibility and quality criteria. A thematic analysis was conducted to synthesize methodological approaches, performance outcomes, and implementation challenges across the included studies. The findings indicate that WHR integration can enhance thermal efficiency by up to 20.3%, provide fuel savings of 17.9%, and reduce CO₂ emissions by approximately 180 kg/MWh. Heat Recovery Steam Generators (HRSG) and Organic Rankine Cycle (ORC) systems demonstrate the highest performance levels, although their adoption is often constrained by higher capital costs and engineering complexity. The review also highlights gaps in policy incentives and regulatory support, which remain significant barriers to large-scale deployment. Overall, WHR technologies present a strategic pathway for improving industrial energy efficiency and advancing decarbonization efforts through a synergistic interplay of technological innovation, economic feasibility, and supportive policy frameworks.  
Evaluasi Sistematis Efisiensi Turbin Angin Lepas Pantai Terapung dan Potensi Reduksi Emisi Karbon Salma Salsabila; Sigit Prasetyo; Putra Adil Wicaksana; Siti Dhurrotus Sa’Diah; Muhammad Rafif Dzaky Abdad; Yuki Trisnoaji
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 3 (2025): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i3.357

Abstract

The growing demand for clean energy has accelerated interest in Floating Offshore Wind Turbines (FOWTs), which enable efficient wind energy harvesting in deep-water regions. This study conducts a systematic literature review across four major databases, Scopus, ScienceDirect, SpringerLink, and Google Scholar, to evaluate the energy efficiency, carbon emission reduction potential, and economic feasibility of FOWT systems. The findings indicate that combined configurations, such as Spar–TLP and multi-turbine platforms, provide the highest energy conversion performance and structural stability, contributing to up to 17% in carbon emission reduction. Economically, several studies report competitive Levelized Cost of Energy (LCOE) and relatively short payback periods. This research strengthens the understanding of FOWT performance by integrating global evidence into the context of marine energy sustainability. However, methodological limitations arise from data variability across studies and the dominance of simulation-based analyses. Further research is required to optimize mooring systems and adapt FOWT designs to tropical and archipelagic environments, such as those found in Indonesia.
Edge-AI robotic swarms for predictive maintenance in utility-scale solar farms: a systematic review and meta-analysis Luqman Assafat; Mochamad Subchan Mauludin; Singgih Dwi Prasetyo; Yuki Trisnoaji
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 17, No 3: September 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v17.i3.pp1831-1841

Abstract

The rapid expansion of utility-scale solar photovoltaic infrastructure poses critical operational challenges for maintaining reliability across large, dispersed networks. Conventional manual inspection and reactive maintenance approaches are increasingly ineffective, leading to reduced energy yield, increased downtime, and higher operational costs. This study presents a systematic review and meta-analysis evaluating the performance of autonomous robotic swarm technologies for predictive maintenance in solar farms, following PRISMA 2020 and Cochrane methodologies. A total of 20 eligible studies were analyzed using random-effects modeling, forest plot interpretation, subgroup evaluation, publication bias assessment, and sensitivity analysis. Results indicate a significant pooled effect size (Hedges g = 7.80) with substantial improvements in detection accuracy, efficiency, and cost reduction, supported by low publication bias and strong robustness. The discussion emphasizes the theoretical and practical implications of decentralized multi-agent coordination, while highlighting the limitations of heterogeneous methodologies and limited real-world validation. The study concludes that swarm robotics offers transformative potential for scalable, intelligent maintenance ecosystems and recommends future research that includes large-scale field deployments and standardized evaluation frameworks.
Co-Authors Dony Perdana Luqman Assafat Marsya Aulia Rizkita Mauludin, Mochamad Subchan Mochamad Choifin Muh Farhan Atha Muhamad Fraja Dwi Putra Muhammad Rafif Dzaky Abdad Nabella Sofa Nur Afiqoh Nindia Nova Novena Novita Vadina Marta Ria Putra Adil Wicaksana Saika Khoolish Rochma Fa’alih Salma Salsabila Sigit Prasetyo Singgih Dwi Prasetyo Siti Dhurrotus Sa’Diah Wildan Yusril Nurhuda Rizkiawan Zainal Arifin