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All Journal Buletin Udayana Mengabdi Jurnal SPEKTRUM Majalah Ilmiah Teknologi Elektro PROSIDING CSGTEIS 2013 Journal of Electrical, Electronics and Informatics International Journal of Engineering and Emerging Technology Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Jurnal Indonesia Sosial Sains Majalah Ilmiah Teknologi Elektro Merkurius: Jurnal Riset Sistem Informasi dan Teknik Informatika
I Wayan Sukerayasa
Teknik Elektro Fakultas Teknik Universitas Udayana
Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Neuroscience Physics Social Sciences

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ANALISIS UNJUK KERJA PEMBANGKIT LISTRIK TENAGA SURYA (PLTS) ATAP ON-GRID 463,25 kWp DI PERUSAHAAN FARMASI PADA KAWASAN PT JAKARTA INDUSTRIAL ESTATE PULOGADUNG, JAKARTA TIMUR Neysa Amelia Hutagalung; I Nyoman Setiawan; I Wayan Sukerayasa
Jurnal SPEKTRUM Vol 10 No 2 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i02.p9

Abstract

The number of PLTS installed on factory rooftops is growing. In Indonesia, the Directorate General of New, Renewable Energy estimates a total renewable energy potential of 442 GW, with solar energy holding the greatest potential. The performance of the PLTS system needs to be considered to ensure good performance in generating electricity. This research focuses on the rooftop on-grid PLTS system in a Pharmaceutical Company located in the PT Jakarta Industrial Estate Pulo Gadung area, with a capacity of 463.25 kWp. Electricity generation potential is modeled using PVSyst software for examination of the PLTS system's performance. For the period of one year, from November 2021 through October 2022, the PLTS system's performance characteristics are determined. These include the Yield Factor (Yf), Reference Yield (Yr), Performance Ratio (PR), and Capacity Utilization Factor (CUF). According to the model, the 463.25 kWp on-grid rooftop PLTS system may generate up to 629,550 kWh of power each year. The values of the PLTS system performance parameters are as follows: Yield Factor (Yf) is 1,358.99 kWh/kWp, Reference Yield (Yr) is 1,730.6 kWh/kW, Performance Ratio (PR) is 78.56%, and Capacity Utilization Factor (CUF) is 15.73%. Meanwhile, the actual electricity production for one year is 570,724.82 kWh, with the following performance parameters for the PLTS system: Yield Factor (Yf) is 1,232 kWh/kWp, Reference Yield (Yr) is 1,642.85 kWh/kW, Performance Ratio (PR) is 76.12%, and Capacity Utilization Factor (CUF) is 14.26%. There is a difference between the PVSyst software simulation and the actual results, which are 58,825.18 kWh, 126.98 kWh/kWp, 87.75 kWh/kW, 2.44%, and 1.47% respectively.
PERENCANAAN PEMBANGKIT LISTRIK TENAGA SURYA (PLTS) OFF GRID DI PT. GEBER SAMUDRA Suryo Aji Wicaksono; Rukmi Sari Hartati; I Wayan Sukerayasa
Jurnal SPEKTRUM Vol 10 No 3 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i03.p8

Abstract

Indonesia has a great opportunity to utilize new renewable energy sources for conversion to electric power. One possible use of renewable energy is solar power plants (PLTS). The average potential of solar energy in Indonesia is around 4.8 kWh/m2/day. Therefore, this study is related to the design of PLTS on the roof of PT. Geber Samudra is off the grid. The design of this solar power plant is made with the help of Helioscope software with a total roof area of 125.71 m2 and a roof slope of 20°. The potential power generated is 9.8 kWp and the total annual energy production is 15.56 MWh. It takes 28 pieces of UKSOL UKs-6M 350wp solar panels, 1 Solax X3 HYBRID 10.0 T type inverter with a capacity of 10 kW, and 6 units of 48V 100Ah batteries assembled in series. Based on the results of PLTS roof design can be analyzed that the planning of PLTS roof at PT. Geber Samudra is considered worthy because it meets the criteria of net present value (NPV) of Rp. 25.603.062 is greater than zero. The Benefit-Cost Ratio (B-CR) is greater than one which is 1.12, and the discounted payback period (DPP) is 21,8 years and is achieved at the age of PLTS with the assumption of operating for 25 years.
ANALISA MITIGASI EMISI KARBON SERTA KEEKONOMIAN PEMBANGKIT LISTRIK TENAGA SURYA (PLTS) ATAP ON GRID 463,25 kWp DI PERUSAHAAN FARMASI PADA KAWASAN PT JAKARTA INDUSTRIAL ESTATE PULOGADUNG, JAKARTA TIMUR I Nyoman Candra Erawan; I Nyoman Setiawan; I Wayan Sukerayasa
Jurnal SPEKTRUM Vol 10 No 3 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i03.p4

Abstract

According to the Directorate General of EBTKE, Indonesia has a great deal of untapped potential for PLTS development because the equator passes through the country. Furthermore, the use of PLTS can mitigate the negative effects of carbon emissions caused by conventional power plants' reliance on coal. This research aims to quantify the savings in carbon emissions from PLTS deployment and to conduct an economic analysis of PLTS deployment by considering its Life Cycle Cost (LCC), Levelized Cost of Energy (LCoE), Net Present Value (NPV), and Payback Period (PBP). Profitability Index (PI) and Internal Rate of Return (IRR) for a pharmaceutical firm located in East Jakarta's PT Jakarta Industrial Estate Pulo Gadung. The results of the analysis that has been carried out obtain a total reduction in carbon emissions due to the use of PLTS when compared to JAMALI's electricity carbon emissions of 479.4 tons CO2eq in a year. The use of PLTS affects savings in paying electricity bills of IDR 591,145,354.06 each year and from the economic analysis using the methods (LCC, (LCoE), (NPV), (PBP), (IRR), and (PI) it is obtained that the feasibility The investment in PLTS development in this company is considered feasible.
ANALISA EKONOMI RANCANGAN PLTS OFF-GRID PADA ADIDAYA WORKSHOP I.P. Dika Putra Ariantika; I.N. Setiawan; I.W. Sukerayasa
Jurnal SPEKTRUM Vol 10 No 3 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i03.p9

Abstract

The PLTS Off-Grid design at the Adidaya Workshop as an additional power supplier is based on the load needs used for the equipment and operational on the workshop. PLTS Off-Grid features are economically likely to take a long time to make a profit. This study deals with the economic analysis of the PLTS Off-Grid system design using the Net Present Value (NPV) analysis method and aims to find out the comparison projections between output and output of the Off-Grid PLTS project at the Adidaya Workshop during the estimated life of PLTS will operate over 20 years. After the calculation, it was obtained that 1th Scenario using a variation of the solar panel capacity of 300 Wp with a battery of 540 Ah produced the largest RAB demand value worth Rp. by 286.038.441 While the smallest RAB requirement value is generated from 4th Scenario using a variation in solar panel capacity of 300 Wp with a 540 Ah battery worth Rp 252.093.730. The largest and the smallest NPV values are also generated by 1th and 4th Scenario with the NPV value of -Rp 316.734.509 and –Rp 251.285.665.
PENINGKATAN KEANDALAN PENYULANG TUKAD MUSI DENGAN PENAMBAHAN PENYULANG BATANGHARI DENGAN POLA LOOP Ian Rahmadi Kurniawan; I Gede Dyana Arjana; I Wayan Sukerayasa
Jurnal SPEKTRUM Vol 10 No 3 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i03.p14

Abstract

Reliability of the distribution system is one of the critical challenges and important indicators in the electricity power system. The indicators determining reliability are SAIFI (System Average Interruption Frequency Index) and SAIDI (System Average Interruption Duration Index). The method used to improve the reliability of the distribution system in this research is by converting two radial feeders, namely Tukad Musi feeder and Batanghari feeder, into a loop configuration.The calculation results show that before the improvement, the SAIDI value for the Tukad Musi feeder is 26.59 hours/customer/year, and the SAIFI is 1.92 interruptions/customer/year. The initial values of SAIDI for the Batanghari feeder are 18.14 hours/customer/year, and SAIFI is 1.69 interruptions/customer/year. By implementing a loop configuration through the addition of extra channels at both ends of the feeders, the SAIDI is reduced to 24.79 hours/customer/year, and SAIFI becomes 1.89 interruptions/customer/year. Further improvements are achieved by maneuvering a portion of the load, resulting in SAIDI of 21.51 hours/customer/year and SAIFI of 1.83 interruptions/customer/year.This study contributes to enhancing the reliability of the distribution system by converting radial feeders into loop configuration. The findings can serve as guidelines for planning and developing a more reliable and efficient distribution system.
PERANCANGAN PLTS TERAPUNG UNTUK MENDUKUNG WISATA HIJAU DI BENDUNGAN TAMBLANG, DESA SAWAN, KABUPATEN BULELENG K. Cakrawenda Yoga Laksana; I.A. Dwi Giriantar; I W. Sukerayasa
Jurnal SPEKTRUM Vol 10 No 3 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i03.p5

Abstract

The Province of Bali have many dams, one of it is the Tamblang Dam, which is located in Sawan Village, Sawan District, Buleleng Regency. The Government of Buleleng Regency is planning to make Tamblang Dam as a new Tourist Destination Area (Daerah Tujuan Wisata or (DTW) in order to improve the existing tourism conditions in North Bali. It is planned to utilizing Renewable Energy (Energi Baru Terbarukan or EBT) sources to support the needs of DTW and to support government programs to reaching the Bali's clean energy target on 2050. The Renewable Energy Power Plant that will be designed is a Floating Solar Photovoltaic (PV) Power Plant, as it the potential source of energy considering that Indonesia is located on the equator. The Solar PV Power Plant is designed using the tool from website by utilizing 5% of the surface area of the dam water which is 4,561.97 m2, based on Kementrian PUPR no 6 Tahun 2020 regulation. So that a Floating Solar PV Power Plant capacity of 0.6 MW is obtained by using 1,533 solar modules and produce energy reaching of 926,539 kWh in a year. The designed Floating PV need an initial investment cost of IDR 13,551,481,157, with the result of economic analysis, obtained value of each parameter including the NPV value is IDR 7,470,053,884, BCR is 2.66, and PP is less than 25 years.
PENINGKATAN KEANDALAN PENYULANG TUKAD MUSI DAN PENYULANG BATANGHARI PT.PLN (PERSERO) UP3 BALI SELATAN ULP SANUR DENGAN POLA RADIAL Nyoman Ananda Tri Utami; I Gede Dyana Arjana; I Wayan Sukerayasa
Jurnal SPEKTRUM Vol 10 No 3 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i03.p10

Abstract

The reliability of the distribution system will affect the quality of the electrical energy received by customers. The system will be said to be reliable if the disturbances and power outages that occur for a certain period of time are below the index set by an institution. The measure of the reliability of a system can be measured through the value of SAIDI (System Average Interruption Duration Index) or how long the system is interrupted and SAIFI (System Average Interruption Frequency Index) or how often a system is interrupted within 1 year and it was found that SAIFI's Tukad Musi Feeders were 1.9255 interruptions/subscribers per year, SAIDI were 26.5966 hours/customers per year and SAIFI's Batanghari Feeders were 1.6992 interruptions/subscribers per year, and SAIDI were 18.1486 hours/ subscribers per year by adding a component in the form of LBS to the two feeders will increase the reliability of the Tukad Musi feeder SAIFI of 1.8855 interruptions/customer per year, SAIDI of 26.0606 hours/customer per year and of Batanghari SAIFI feeder of 1.6814 interruptions/subscriber per year, SAIDI of 15.7925 hours / customer per year.
DESAIN PLTS OFF-GRID BERDASARKAN ANALISIS OTONOMI BATERAI LEAD ACID OPZV DI ADIDAYA WORKSHOP, JAKARTA BARAT Jonathan Oliver Ken; I Nyoman Setiawan; I Wayan Sukerayasa
Jurnal SPEKTRUM Vol 10 No 3 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i03.p2

Abstract

The design of Off-Grid PV at Adidaya Workshop as an additional electrical energy supplier is based on the load requirements used for equipment and operations at the workshop. In addition to requests from the company itself, the design of Off-Grid PV is carried out to supply electrical energy to essential loads and other educational purposes. The Off-Grid PV design was carried out with the first step of field observations at Adidaya Workshop, measuring the roof area, daily electricity load profile with a Power Quality Analyzer measuring instrument, and calculating the capacity requirements of the Off-Grid PV system according to the Adidaya Workshop load. The Off-Grid PV design was carried out with 4 scenarios based on variations in solar panels and batteries. Researchers calculated the capacity of the PV system and used PVSyst software as a design simulation so that a report was obtained based on field data. In the simulation results with PVSyst, the best performance ratio is obtained which is worth 68.3% obtained from scenario 3 with a variation of 600 Wp solar panels and 540 Ah batteries and the largest yield energy output is obtained from scenario 4.
PERANCANGAN SISTEM POMPA AIR SUNGAI YEH HA UNTUK MEMENUHI KEBUTUHAN AIR MASYARAKAT DESA ABABI Derren, M.; Ariastina, W. G.; Setiawan, I N.; Giriantari, I. A. D.; Sukerayasa, I W.; Satya Kumara, I N.
Jurnal SPEKTRUM Vol 11 No 2 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kayuan Yeh Ha serves as a clean water source located in Ababi Village, Karangasem Regency. The flow from Kayuan Yeh Ha is utilized for both bathing dan consumption by the surrounding residents. Originating from the Yeh Ha spring, Kayuan Yeh Ha is extensively utilized to fulfill the needs of the local community. In order to meet the water requirements of the local populace, a water storage tank with a capacity of 58.74 m3 was initially established to distribute water to 10 households. In the year 2020, a water wheel was employed to power a mechanical pump without electricity to fill the storage tank. After operating for one year, the water wheel experienced shaft damage, necessitating its replacement with a hydraulic ram pump. However, the hydraulic ram pump only utilizes one-fifth of the available water flow, thereby rendering it less effective. Consequently, this research aims to design an electric water pump system powered by a new renewable energy source. The implementation of this electric water pump is expected to enhance the efficiency of filling the storage tank. Based on measurements dan calculations, the micro-hydro power plant system (PLTMH) is estimated to produce a power output of 6kW. Pump selection is determined by electrical power calculations, water discharge, dan pump prices, leading to the adoption of the Pedrollo F50-160B centrifugal pump capable of delivering a water discharge of 56m3/hour at a head of 25 meters. The Pedrollo F50-160 pump utilizes a 3-phase squirrel cage induction motor generating a power output of 5.5kW. Pipe losses dan fittings are also calculated using Pipeflow Expert software, resulting in a water discharge of 31.687 m3/hour. The pump will be operated at maximum capacity for 24 hours, enabling it to deliver a water discharge of 763,620 m3/day, sufficient to meet the clean water needs of 12,277 individuals or 2,455 families. Achieving this water usage target also necessitates piping to households from the storage tank, totaling 35,900 meters in length with an 80mm diameter dan 49,100 meters of 16mm diameter piping. This system is also equipped with a variable frequency drive or inverter device to enhance the efficiency of the electric pump dan reduce starting current surges, simulated for its performance through Simulink software.
PERANCANGAN JARINGAN DISTRIBUSI UNTUK PLTS TERAPUNG DAN PLTMH DI BENDUNGAN SIDAN Sari, N. P. A. R.; Ariastina, W. G.; Setiawan, I. N.; Partha, C. G. I.; Sukerayasa, I W.; Kumara, I. N. S.
Jurnal SPEKTRUM Vol 11 No 1 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2024.v11.i01.p17

Abstract

Blahkiuh Feeder is a 20 kV radial distribution network spanning 78.65 kms, which is the longest network in the Mengwi Network Unit. The length of the distribution lines also results in relatively high power losses. Therefore, the installation of distributed generation (DG) utilizing the potential of solar photovoltaic (PV) and micro-hydro power plants (MHP) available at the Sidan Dam has the potential to improve voltage drop and power loss values on the Blahkiuh Feeder. This research was conducted to analyze voltage and power losses due to DG installation at the Sidan Dam, with power flow simulation during peak daytime load at 14:00 and peak nighttime load at 19:00. Simulation results indicate that when interconnected with the daytime peak load at 14:00, DG interconnection results in a decrease in power loss values by 0,8% or 64 kW, and interconnection with the nighttime peak load at 19:00 also leads to a decrease in power loss values by 0.61% or 55 kW. Distributed Generation interconnection on the Blahkiuh Feeder also leads to improvements in voltage values, where interconnection during daytime at 14:00 results in voltage improvement at 41 busbars units under undervoltage condition, and interconnection during night time at 19:00 leads to voltage improvement at only 34 busbars units undervoltage condition out of a total of 50 undervoltage busbars.
Co-Authors A. A. G. M. Pemayun A. A. T. B. Artawan A. Dharma Agus Satrya Wibawa Allan Ardiansyah Anak Agung Istri Pandawani Bagas Maruli Pangaribuan Bawa Adiputra Bima Aditya Putra C. G. I. Partha, C. G. I. C. G. Indra Partha Chandra Wimartono Manurung Derren, M. Edyama Vasabri Genta Maulana Etis Meilandari Gede Agus Ryzky Martha Gede Endrawadi Gesta Winantara Giusna Dipankara Kusnandar I Dewa Gede Wisnu Agung Bayuna I G.N. Evan Aditya Pramana I G.N.A.B Rama Wahyu Dewangga I Gede Agus Januar Ariawan I Gede Dyana Arjana I K Agus Setiawan I Kadek Adi Darmadi I Kadek Adi Febriana Putra I Komang Widi Astawa I Made Agus Artha Putra I Made Agus Sastradiangga I Made Arya Supartana I Made Gusmara Nusaman I Made Mataram I Made Wahyu Darmahesta I N Satya Kumara I N. Lanus I N. Surata I Nyoman Budiastra I Nyoman Candra Erawan I Nyoman Cita Artawa I Nyoman Gunantara I Nyoman Setiawan I Nyoman Suprapta Winaya I Nyoman Susanta I Nyoman Sutarja I P. A. Edi Pramana I Putu Adi Wirajaya I Putu Andithya Chrisna Budi I Putu Dedi Wiriastika I Putu Juliawan I W. A. Wijaya I Wayan Arta Wijaya I Wayan Eka Prastia I Wayan Rinas I. G. G. B. Prabu Wisesa I. K. A. Wijaya I. K. Wijaya I. W. Dhanan Arieyasa I.A. Dwi Giriantar I.B.G. Manuaba I.G. Surya Subaga I.N. Setiawan I.P. Dika Putra Ariantika I.P.A. Wiranata I.W.A Wijaya Ian Rahmadi Kurniawan IBG Manuaba Ida Ayu Dwi Giriantari Ida Bagus A. Swamardika Ida Bagus Gde Primayatna Indra Baskara Intan Aprilia Medina Jonathan Oliver Ken Julius Mahendra Sihombing Juniastra Gina K. Cakrawenda Yoga Laksana K.Amerta Yasa K.H. Priadi Kadek Agus Nata Riadnyana Kadek Bayu Kusuma Kholid Hidayatullah komang jaryanta aryamantara Kresna Hadi Wijaya Kumara, I. N. S. l Gusti Ngurah Janardana M.K. Huda Made Satria Tresnajaya Margareta Yuniari Mawadah Wr Febriyani Miguel Nazario Muhammad Fauzi N. A. Kartono N.W. Budiantari Nasrul Faisal Neysa Amelia Hutagalung Ngakan Putu Satriya Utama Nyoman Ananda Tri Utami Nyoman S Kumara Pande Ketut Sudiarta R. S. Hartati R.S. Hartati Reki Aji Saputra Richard Antony Suatan Rukmi Sari Hartati Sahabat Nazara Salman Al Farisi Sani Renartha Kusuma Sari, N. P. A. R. Sembiring, Rinawati Setiawan, I N. Setiawan, I. N. Sinaga, P. M. Solly Aryza Surung Rafael Sihaloho Suryo Aji Wicaksono Tjok Gede Indra Partha Virgunia, D. A. W. G. Ariastana Wahyudi Ernest Putra Wayan Agus Adi Widiastra Wayan Gede Ariastina Yoga Kusuma Wardhana Yohanes Made Arie Prawira