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All Journal TEKNIK TRANSIENT: Jurnal Ilmiah Teknik Elektro Bulletin of Electrical Engineering and Informatics Jurnal Teknologi Elektro R.E.M (Rekyasa Energi Manufaktur) Jurnal Infotekmesin Scientific Journal of Mechanical Engineering Kinematika Indonesian Journal of Electrical Engineering and Computer Science Jurnal Riset Teknologi Pencegahan Pencemaran Industri Journal of Telecommunication, Electronics and Control Engineering (JTECE) Jurnal Energi Baru dan Terbarukan Jurnal IPTEK Bagi Masyarakat Prosiding Konferensi Nasional PKM-CSR
Jaka Windarta
Departemen Teknik Elektro, Fakultas Teknik, Universitas Diponegoro
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Nursing Physics Public Health Social Sciences

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Desain Pompa Air Tenaga Surya DC di Mata Air Aroen, Kabupaten Manatuto, Timor Leste Budiman Kamil; Jaka Windarta; Oo Abdul Rosyid
Jurnal Energi Baru dan Terbarukan Vol 3, No 3 (2022): Oktober 2022
Publisher : Program Studi Magister Energi, Sekolah Pascasarjana, Universitas Diponegoro, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jebt.2022.14266

Abstract

Teknologi Pompa Air Tenaga Surya (PATS) saat ini dapat menjadi solusi penyediaan air untuk keperluan rumah tangga yang ramah lingkungan tertama di daerah terpencil yang belum tersedia listrik. Desain sistem yang tepat sangat tergantung pada kondisi geografis, penyinaran matahari yang tersedia, kebutuhan air domestik dan konfigurasi yang tepat dari sistem yang diusulkan. Oleh karena itu, tujuan dari studi ini adalah untuk membuat desain Pompa Air Tenaga Surya submersibel DC yang optimal yang mampu memasok sistem pompa surya untuk memenuhi kebutuhan air domestik dari desa terpencil yang terletak di kabupaten Manatuto, Timor Leste. Pendekatan rinci untuk desain PATS, disimulasikan berdasarkan data kebutuhan air penduduk dari hasil survei. Selain itu, studi desain PATS dilakukan dengan memperhatikan kondisi geografis. Berdasarkan kondisi tersebut dan letak pemukiman, maka desain sistem pemasokan air direncanakan menggunakan 2 metoda yaitu dengan sistem pemompaan dan sistem gravitasi. Dari hasil perhitungan jarak dan ketinggian antara sumber air dengan pemukiman penduduk yang membutuhkan pompa dengan total head statis yang besar tetapi debit kecil, maka jenis pompa yang cocok adalah pompa submersibel rotor heliks dengan arus DC. Hal ini karena listrik dari panel surya adalah listrik DC sehingga akan lebih efisien jika menggunakan pompa DC. Selain itu Pompa DC memiliki keunggulan lebih efisien karena memberikan output maksimum dengan panel surya yang lebih sedikit. Pompa surya AC membutuhkan lebih banyak panel surya karena listrik harus diubah menjadi AC untuk digunakan. Akibatnya, efisiensi sistem berkurang.
Solar power plant on the rooftop of the Diponegoro University Rectorate: a technical and economic study Jaka Windarta; Asep Yoyo Wardaya; Singgih Saptadi
Bulletin of Electrical Engineering and Informatics Vol 12, No 4: August 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v12i4.3497

Abstract

Diponegoro University's Rectorate building uses electricity from the National Electricity Company with a S2 social subscription type of 105 kVA. The designed solar power plant has a capacity of 25 kW, or 25% of the installed electrical capacity. This research aims to compare the solar panels and inverter configurations that will be used in solar power plants. Moreover, this study aims to find out which configuration will provide the best results and the biggest savings. Technical analysis is carried out with the photovoltaic system (PVSyst) software to calculate the energy produced by solar panels, inverter losses, and other results. On the other hand, economic analysis is carried out with RetScreen software to calculate net present value (NPV), benefit cost ratio (BCR), and payback period (PP). Based on the PVSyst simulation results, the estimated energy production for each variant is 39,684 kWh; 39,633 kWh; 39,507 kWh; and 39,446 kWh. The first variant has the biggest performance ratio value of 84.1%. Based on the Retscreen calculation result, the third variant has an NPV value of $22,698, a BCR value of 2, and a PP of 8.7 years, which has the best result and the highest advantages.
Overview Pemanfaatan dan Perkembangan Sumber Daya Energi Surya Sebagai Energi Terbarukan di Indonesia Ferdyson Ferdyson; Jaka Windarta
Jurnal Energi Baru dan Terbarukan Vol 4, No 1 (2023): Maret 2023
Publisher : Program Studi Magister Energi, Sekolah Pascasarjana, Universitas Diponegoro, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jebt.2023.15714

Abstract

Tingginya potensi sumber daya energi surya di Indonesia membuat pemerintah Indonesia berupaya untuk terus meningkatkan pemanfaatan sumber energi surya untuk pembangkit listrik. Upaya untuk mengurangi energi primer yang berasal dari fosil selain dari berkurangnya cadangan batubara, juga disebabkan karena pengaruh emisi gas buang batubara. penggunaan energi primer yang berasal dari fosil dalam setiap perubahan bentuk energinya menyebabkan peningkatan emisi gas karbondioksida sehingga bisa berakibat rusaknya lingkungan dan perubahan iklim. Dalam makalah ini penulis memfokuskan untuk melihat kebijakan pemerintah dalam mengatur sumber daya energi nasional, gambaran tentang pemanfaatan dan perkembangan sumber energi surya di Indonesia dengan menunjukkan data-data yang didapatkan dari jurnal-jurnal lokal maupun internasional. Diharapakan dari makalah ini dapat membantu memberikan informasi terkait pemanfaatan dan perkembangan sumber energi primer dari matahari.
Pemanfaatan Teknologi Pembangkit Listrik Tenaga Surya (PLTS) di Desa Mojo Kecamatan Ulujami Kabupaten Pemalang Jaka Windarta; Hartuti Purnaweni; Asep Yoyo Wardaya
Jurnal Energi Baru dan Terbarukan Vol 4, No 1 (2023): Maret 2023
Publisher : Program Studi Magister Energi, Sekolah Pascasarjana, Universitas Diponegoro, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jebt.2023.16965

Abstract

Sumber energi yang paling banyak dimanfaatkan oleh teknologi penunjang kehidupan manusia saat ini adalah energi listrik. Kondisi geografis Indonesia yang sangat luas mengakibatkan distribusi energi listrik belum dapat menyeluruh merambah hingga ke desa. Secara tidak langsung ketersediaan sumber energi listrik mempengaruhi laju pembangunan infrastruktur pada suatu daerah. Salah satu daerah yang belum terjangkau oleh energi listrik adalah Wisata Mangrove dan Reservat Kepiting Desa Mojo, Kecamatan Ulujami, Kabupaten Pemalang. Desa Mojo merupakan salah satu alternatif tempat wisata di Kabupaten Pemalang, akan tetapi belum terdapat fasilitas umum seperti penerangan jalan, pompa air bersih dan bangunan permanen di Wisata Mangrove dan Reservat Kepiting Desa Mojo, kondisi ini antara lain diakibatkan belum terdapatnya sumber energi listrik. Berangkat dari kondisi tersebut tim pengabdian masyarakat Sekolah Pascasarjana Universitas Diponegoro sebagai pengusul bekerjasama dengan Mitra Pokdarwis dan Mitra Pokmaswas Desa Mojo sebagai penerima, merencanakan inisiasi PLTS sebagai sumber energi listrik terbarukan yang dapat diimplementasikan di Wisata Mangrove dan Reservat Kepiting Desa Mojo. PLTS ini rencananya di pasang pada 3 titik yang tersebar di lokasi wisata. Lokasi penempatan titik PLTS diantaranya adalah : Pintu Dermaga 1 Keberangkatan, Pintu Dermaga 2 Kedatangan dan Gazebo. PLTS yang digunakan akan menggunakan konfigurasi off – grid, kapasitas pembangkitan setara 400 Wp, dilengkapi baterai 2 × 60 Ah menggunakan inverter berkapasitas 1 × 1000 VA. Selain melakukan instalasi dan diseminasi teknologi PLTS di Desa Mojo, Pemalang akan dilakukan juga pemberdayaan masyarakat agar dapat mengoperasikan dan merawat PLTS secara swadaya. Dengan ketersediaan sumber energi listrik di Wisata Mangrove dan Reservat Kepiting Desa Mojo diharapkan dapat memacu laju pembangunan infrastruktur, sehingga dapat berdampak pula pada peningkatan daya tarik Wisata Mangrove dan Reservat Kepiting Desa Mojo sebagai salah satu destinasi wisata di Kabupaten Pemalang serta meningkatkan ekonomi masyarakat anggota Pokdarwis dan Pokmaswas Desa Mojo Kecamatan Ulujami Kabupaten Pemalang.
Potential microgrid model based on hybrid photovoltaic/wind turbine/generator in the coastal area of North Sumatra Habib Satria; Rahmad Syah; Dadan Ramdan; Muhammad Khahfi Zuhanda; Jaka Windarta; Syafii Syafii; Almoataz Youssef Abdelaziz
Indonesian Journal of Electrical Engineering and Computer Science Vol 34, No 2: May 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v34.i2.pp768-776

Abstract

The high potential for renewable energy in the North Sumatra region, especially the coast of the Belawan area, needs to be exploited properly. The design that will be carried out is to explore the potential in coastal areas by simulating microgrid systems and hybrid system-based electricity installations. The method that will be used is to find the accuracy of strategic location points by considering the panel surface temperature which will later influence the power output of the power plant. Then find the ideal installation location as a reliable system when irregular climate conditions occur, of course this phenomenon will have a significant effect on energy balance and energy conversion, especially in coastal areas. The potential for installation construction will be carried out with a hybrid system using power sources from photovoltaics, wind turbines and diesel generators assisted by HOMER Pro software. The results of testing with simulations and information data that have been recorded in the software can later be used as a benchmark in planning electrical installations and also for identifying microgrid protection challenges. Then the measurement results that have been obtained for the installation of a hybrid-based microgrid system on Photovoltaic (PV) are DC output power of 618.80 W with measurements of sunny weather conditions, then the potential wind speed on the wind turbine reaches 5 m/s and the potential use of a diesel generator reaches 40% with power output capacity 1 kW.
Grand Design and Economic Analysis of Solar-Wind Hybrid Renewable Energy Systems in MSTP Jepara Denis Denis; Jaka Windarta; Vicky Prasetia; Gladys Datita Nathania; Richad Juven Hariara; Ahmad Arif Razaqi
Infotekmesin Vol 15 No 1 (2024): Infotekmesin: Januari, 2024
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v15i1.1789

Abstract

Marine Science Techno Park (MSTP) Jepara is a center of technology implementation aimed to encourage community economy development in the maritime sector. At present, Marine Science Techno Park (MSTP) Jepara’s electrical energy source is supplied by Perusahaan Listrik Negara (PLN), with coal-powered steam turbine generators as the main source of electrical energy generation. Therefore, a cleaner and more sustainable means of electrical energy generation is needed to fulfill the high energy demand. With this in mind, Universitas Diponegoro, as the proposer, in collaboration with MSTP Jepara, as the recipient, proposes the initiation of Hybrid Renewable Energy Systems (HRES) Power Plant construction as a way of obtaining an environmentally friendly and sustainable source of energy in this research as well as addressing the issues in the previous HRES simulations and implementations. This article will discuss various scenarios, their feasibility for implementation, and the economic returns gained from HRES installation on-site.
RANCANGAN DAN IMPLEMENTASI SISTEM MANAJEMEN ENERGI DAN AUDIT ENERGI BERBASIS ISO:50001 DI KAMPUS UNIVERSITAS ISLAM KALIMANTAN Ditza Pasca Irwangsa; Jaka Windarta; Susatyo Handoko
Scientific Journal of Mechanical Engineering Kinematika Vol 8 No 2 (2023): SJME Kinematika Desember 2023
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v8i2.265

Abstract

The use of electricity without following standards, safety, and regulations can lead to inefficiency and ongoing crises. This study aims to analyze efficiency, design strategies, and implement an Energy Management System (EMS) based on ISO 50001 at the Islamic University of Kalimantan. The methods involve literature review, observation, surveys, and primary and secondary data collection. An energy audit in three buildings on the UNISKA campus revealed an energy consumption intensity (IKE) of 16.16 kWh/m2/month, which is inefficient according to the 2012 DEPDIKNAS standards. The Gap-Analyst method was used to calculate the difference between actual and desired IKE, resulting in a difference value of 4.52 kWh/m2. With IKE savings of 11.64 kWh/m2/month, the total saved cost amounts to Rp. 81,839,250, achieving a 27.93% reduction. UNISKA management is expected to implement recommendations and the ISO 50001-based Energy Management System for energy efficiency.
Evaluation of the Design for the Construction of a 100 kW Micro Hydropower Plant (PLTMH) Utilizing Condenser Cooling Water Discharge at a 2×25 MW Coal-Fired Power Plant (CFPP) Khoeruz zaman; Jaka Windarta; Sulistyo
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 11 No 1 (2026): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v11i1.1814

Abstract

The utilization of residual energy within existing power plant systems represents a promising pathway to enhance energy efficiency and support decarbonization without requiring additional fuel consumption. This study evaluates the feasibility of integrating a micro-hydropower (MHP) system into the condenser cooling water discharge of a coal-fired power plant (CFPP) in Indonesia. A quantitative techno-economic assessment framework is employed, incorporating hydraulic analysis, annual energy production estimation, discounted cash flow (DCF) evaluation, environmental impact assessment, and sensitivity analysis. The results indicate that an average discharge of 1.20 m³/s and an effective head of 8.73 m can generate an actual power output of 77.37 kW, corresponding to an annual electricity production of 610.01 MWh. Economic evaluation shows strong feasibility, with a Net Present Value (NPV) of approximately IDR 3.9–4.0 billion, an Internal Rate of Return (IRR) of about 27%, a Levelized Cost of Energy (LCOE) of approximately IDR 725/kWh, and a payback period of 3.6 years. Sensitivity analysis reveals that capacity factor and discount rate are the most influential parameters affecting LCOE and NPV, respectively, while the system remains financially robust under ±10% variations. From an environmental perspective, the system can reduce carbon emissions by approximately 518 tons CO₂ per year without additional fuel consumption. Compared to conventional river-based micro-hydropower systems, the proposed approach offers higher operational stability, lower resource dependency, and reduced investment risk due to the utilization of continuous industrial flow and existing infrastructure. Overall, the findings demonstrate that integrating micro-hydropower into condenser cooling systems is a technically feasible, economically competitive, and low-risk strategy for improving energy efficiency and supporting incremental decarbonization in thermal power plants. The study contributes to the advancement of infrastructure-based energy recovery approaches and provides a practical framework for industrial-scale implementation.
Analisis Teknis dan Ekonomis Pembangkit Listrik Tenaga Surya Off-grid Menggunakan Software PVSyst untuk Usaha Mikro Kecil dan Menengah (UMKM) Coffeeshop Remote Area Jaka Windarta; Susatyo Handoko; Khilmi Nafadinanto Irfani; Sunan Muqtasida Masfuha; Candra Halim Itsnareno
TEKNIK Vol 42, No 3 (2021)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v42i3.40242

Abstract

Distribusi listrik dari Perusahaan Listrik Negara (PLN) belum tentu mencapai daerah daerah terpencil, sehingga daerah tersebut memerlukan sumber listrik alternatif seperti Pembangkit listrik Tenaga Surya (PLTS). Penelitian kali ini memiliki tujuan untuk merancang dan menganalisis PLTS Off-grid skala kecil dengan studi kasus UMKM Coffeeshop ditinjau dari analisis teknis dan ekonomi. Metode penelitian yang digunakan adalah dengan melakukan perbandingan dengan menggunakan desain 2 merk panel surya kapasitas 720Wp dan 2 merk baterai kapasitas 160Ah menggunakan software PVSyst 7.0. Dari hasil simulasi didapatkan jumlah energi tersuplai paling banyak pada variasi 3 sebesar 674,51 kWh/tahun. Selain itu dilakukan analisis ekonomi dengan tujuan untuk membandingkan sisi ekonomis PLTS dengan alternatif sumber listrik lain seperti genset dan penggunaan baterai dengan charging dari PLN. Berdasarkan simulasi software RetScreen, nilai Net Present Value (NPV) pada semua variasi diperoleh nilai negatif ( < 0 ), akan tetapi penggunaan PLTS off-grid adalah yang paling menguntungkan jika dibandingkan dengan penggunaan genset atau sumber listrik baterai dengan pengisian daya dari  PLN.
Optimization of the Development of the Tambak Lorok Floating Solar Power Plant for Self-Consumption (SC) through a Technical and Economic Analysis Much Bahrun Idris; Heri Susanto; Jaka Windarta
Jurnal IPTEK Bagi Masyarakat Vol 5 No 3 (2026)
Publisher : Ali Institute of Research and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55537/j-ibm.v5i3.1635

Abstract

Global climate change and rising greenhouse gas (GHG) emissions demand an accelerated transition from fossil fuels to sustainable energy systems. Floating solar power plants (FSPs) are one strategy for integrating renewable and conventional energy sources by utilizing water bodies without causing land-use conflicts. However, this implementation faces challenges related to fluctuations in solar irradiance, aquatic environmental characteristics, and economic uncertainty in investment, particularly for self-consumption schemes at existing power plants such as the Tambak Lorok Combined Cycle Power Plant (CCPP) in Semarang City. This study aims to analyze the technical feasibility, contribution to CO₂ emission reduction, and economic viability of developing a floating PV plant at Tambak Lorok. The research methodology employs a quantitative-analytical approach based on secondary data and system simulation. The study utilizes data on solar irradiance, meteorology, technical specifications of modules and inverters, electricity consumption data from the gas-fired power plant, and project economic parameters. The analysis was conducted through technical, environmental, economic, and integrative approaches. The results show that a 1.166 MWp floating solar power plant system is capable of generating approximately 1,810 MWh of electricity per year, with a performance ratio (PR) of around 85%, indicating efficient system performance. From an environmental perspective, this system has the potential to reduce carbon emissions by approximately 1,085 tons of CO₂ per year, or about 32,558 tons of CO₂ over the project’s 30-year lifespan.Economically, the project is deemed viable, with a net present value (NPV) of Rp5.45 billion, an internal rate of return (IRR) of 12.8%, and a payback period of 11.48 years. These results indicate that the development of a floating solar power plant in Tambak Lorok is technically feasible, provides significant environmental benefits, and is economically profitable, thereby having the potential to serve as a model for the energy transition of fossil-fuel-based power plants in Indonesia.
Co-Authors Adiarso Adiarso Ahmad Arif Razaqi Ahmad Wisnu Prasetyo Akhmad Choerudin Ali Firmansyah Ali Firmansyah Almoataz Youssef Abdelaziz Andrian Mayka Ariawan Archibald Nagel Ardian Burhandono Arie Wicaksono Asa Taufiqurrahman Asep Yoyo Wardaya Asep Yoyo Wardaya Ayu Inka Avinda Baharudin Helmy Bambang Winardi Budiman Kamil Candra Halim Itsnareno Choirul Alfian Putranto Chrisna Radityatama Dadan Ramdan Darell Mahardhika Darjat Darjat Denis Denis Denis Ginting Dimas Adi Satrio Ditza Pasca Irwangsa Enda Wista Sinuraya Erick Hardian Giovanni Erik Prasetiya Aji Ferdyson Ferdyson Gladys Datita Nathania Gregorius Mariyanto Pasaribu Gusti Prasetyo Rendy Anggara Habib Satria Handoko Bayu Hartuti Purnaweni Hendra Ardi Kurniawan Heri Susanto Ilham Muammar Yusuf Imam Arifan Nurdani Imam Arifan Nurdani Imam Fajar Nur Diansyah Irfan Arif Kusuma Irwan Firmanto Nainggolan Iwan Gunawan Jauhar Fahmi Jon Marjuni Kadang Karnoto . Khilmi Nafadinanto Irfani Khilmi Nafadinanto Irfani Khoeruz zaman Listya Nurina Rahayu Mahendra Krisna Aldianto Much Bahrun Idris Muhammad Ali Muhammad Khahfi Zuhanda Nazaruddin Sinaga Nurhadi Nurhadi Oktapianus Ala Oo Abdul Rosyid Priambodo Wibowo Rahmad B.Y Syah Richad Juven Hariara Ricky Ricky Satyo Jati Prakoso Singgih Saptadi Singgih Saptadi Sri Widodo Agung Suedy Sujarwanto Dwiatmoko Sujarwanto Dwiatmoko Sulistyo Sumardi . Sunan Muqtasida Masfuha Sunan Muqtasida Masfuha Suriyan Arif Wibowo Susatyo Handoko Syafii . Syarief Albar Tua Harolt Hutapea Udi Harmoko Vicky Prasetia Yudhanto Edhi Wibowo Yudiartono Yudiartono