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All Journal International Journal of Electrical and Computer Engineering IAES International Journal of Artificial Intelligence (IJ-AI) Jurnal SPEKTRUM Majalah Ilmiah Teknologi Elektro Bumi Lestari Transmisi: Jurnal Ilmiah Teknik Elektro IPTEK The Journal for Technology and Science TELKOMNIKA (Telecommunication Computing Electronics and Control) PROSIDING CSGTEIS 2013 Logic : Jurnal Rancang Bangun dan Teknologi Journal of Electrical, Electronics and Informatics International Journal of Engineering and Emerging Technology Journal of Applied Science, Engineering, Technology, and Education Jurnal Sosial dan Teknologi Electron: Jurnal Ilmiah Teknik Elektro Jurnal Indonesia Sosial Sains Majalah Ilmiah Teknologi Elektro
Ida Ayu Dwi Giriantari
Jurusan Teknik Elektro Fakultas Teknik Universitas Udayana
Agriculture, Biological Sciences & Forestry 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 Other

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PERANCANGAN POWER SUPPLY UNTUK CHARGING STATION KENDARAAN LISTRIK RODA DUA DENGAN SISTEM PLTS ON GRID Nadhif Dewayana, Zevardy; Setiawan, I Nyoman; Dwi Giriantari, Ida Ayu
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.p14

Abstract

Electric vehicles use electrical energy as a substitute for fossil energy. Like gasoline vehicles that require gasoline filling facilities, electric vehicles also require electric energy charging facilities or commonly referred to as charging stations. One of the utilizations of solar power plant can be used for charging electrical energy at the charging station. In this study, a Power Supply Design was carried out for Charging Station for Two-Wheeled Electric Vehicles with Solar Power Plant System on grid in Widya Sabha Building Parking Lot, Udayana University. With the calculation of the energy needed in the Power Supply, the solar power plant design and manufacturing costs can be made. The design of this charging station can accommodate 10 electric motorbikes with solar power plant that can provide energy for 2 electric motorbikes per day for 9 hours of work alternately. By using 11.450 Wp solar panels arranged in series and 1 inverter with a capacity of 4.6 kW, this design produces 8.229 MWh per year. The total initial investment in this design based on market prices in Indonesia is IDR 99.213.000. Based on the investment feasibility, it shows that the investment in this design is feasible to implement.
ANALISIS EKONOMI SISTEM PLTMH DAN POMPA AIR SUNGAI YEH HA DI KABUPATEN KARANGASEM Leba, G. I. M.; Sukerayasa, I. W.; Ariastina, W. G.; Giriantari, I. A. D.; 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.p28

Abstract

Yeh Ha River in Ababi Village, Karangasem Regency, is a bathing spot utilized by locals for various purposes, fed by the Yeh Ha spring. Among its uses is filling a water tank with a capacity of 58.74 m3 to distribute water to 10 households. Initially, a waterwheel powered a mechanical pump without electricity. However, due to damage, a less efficient hydraulic ram pump replaced the waterwheel. The research aims to design a Microhydro Power Plant (PLTMH) and a water pump system. With these systems, it's expected to enhance the efficiency of filling the water tank and ensure project sustainability through economic analysis. Measurements indicate that Yeh Ha spring has a flow rate of 0.201 m3/s with a head of 4.6 m. Based on this, a crossflow turbine equipped with a centrifugal pump and variable frequency drive is chosen to meet the water needs of 12,277 people or 2,455 families. The investment for the PLTMH and water pump system is Rp3,191,330,505 with a project's economic life of 30 years. Feasibility analysis shows that the design is viable, with a positive net present value of Rp1,534,531,357 and Rp930,180,420 at discount rates of 10% and 12%, respectively. However, the benefit-cost ratio (BCR) is less than 1, at 0.48 and 0.29. The internal rate of return (IRR) is 17.6% and 15.5%, with a break-even point of 2,699,253 m3 sold, requiring a payback period of 9 years at a 10% discount rate and 10 years and 4 months at a 12% discount rate.
PERENCANAAN PEMBANGKIT LISTRIK TENAGA SURYA SEBAGAI CATU DAYA PADA SISTEM POMPA AIR DI SUMUR BOR ABIANSEKA II Ananta Mahanata, I Gusti Putu; Dwi Giriantari, Ida Ayu; Setiawan, I Nyoman
Jurnal SPEKTRUM Vol 11 No 2 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

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Abstract

To accelerate the increase in the use of New Renewable Energy (EBT) in Bali Province in accordance with the General Regional Energy Plan (RUED), the Bali Provincial Government issued Bali Governor Circular Letter (SE) Number 5 of 2022. One of the applications of this letter is investment planning and analysis installation of a Solar Power Plant (PLTS) at the Abianseka II drilled well in Batuan Kaler Village, Gianyar. The Abianseka II drilled well is equipped with 4 pumps which on average consume 25,093.33 kWh of electricity per month. Based on the survey, the land available at the Abianseka II drilled well is sufficient for the installation of Ground Mounted PLTS covering an area of 478.5 m2. Therefore, it was decided to use 83 Jinko Solar JKM610N-78HL4-V 610 Wp modules with a total capacity of 50.6 kWp, as well as 1 LivoLtek 60 kW inverter and PLTS are capable of producing annual energy of 82,783 MWh, and have a performance ratio of 82.3%.
KAJIAN EKONOMI PEMANFAATAN PLTS ATAP DI GEDUNG RUMAH JABATAN GUBERNUR PROVINSI BALI Diva Aristia, Gusti Bagus; Dwi Giriantari, Ida Ayu; Sukerayasa, I Wayan
Jurnal SPEKTRUM Vol 10 No 4 (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.i04.p33

Abstract

To meet the high demand for electrical energy, an alternative solution that can be applied is the use of New and Renewable EnergyIndonesia targets to achieve Net Zero Emissions (NZE) by 2060. Planning for a rooftop PLTS at the Office of the Governor of the Province of Bali is expected to be able to assist in the expansion of PLTS in the Province of Bali in terms of strengthening Governor Regulations/Regional Regulations that support the use of Solar Power Plants. The design of the rooftop PLTS at the Bali Province Governor's Office Building was carried out using 4 scenarios. Scenario 1 is a design that utilizes the roof area facing the north side. Scenario 2 is by utilizing the roof area only to meet the peak load of the building. Scenario 3 is a design that utilizes the entire roof area of the building that best meets the criteria. Meanwhile, scenario 4 is scenario 2 but uses a microinverter device. The Scenario 2 PLTS design is studied economically because the return on investment is the fastest compared to the other scenario PLTS designs. Based on the economic feasibility analysis of the investment, scenario 2 design has a Net Present Value (NPV) of Rp. 158,771,001, Profitability Index (PI) of 1.32 and a Discounted Payback Period (DPP) of 10.7 years.
ANALISIS EKONOMI RANCANGAN PLTS UNTUK KAWASAN WARISAN BUDAYA DUNIA JATILUWIH Sinaga, P. M.; Ariastina, W. G.; Sukerayasa, I W.; Giriantari, I. A. D.; Setiawan, I N.; Satya Kumara, I N.
Jurnal SPEKTRUM Vol 10 No 4 (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.i04.p24

Abstract

Bali is a province in Indonesia that is progressive in utilizing renewable energy, by making a policy to create Bali Clean Energy, which aims to develop renewable energy including solar energy. Even though several Solar Power Plant developments have been carried out in Bali, it still needs to be accelerated in its application to achieve the set targets. In this study, the Jatiluwih Heritage Area was chosen as the location for designing a Rooftop solar power plant. Jatiluwih is a Village that became a World Cultural Heritage designated by UNESCO in 2012. The methods used in this research are interviews, literature studies, and scientific studies based on related journals. This study uses two scenarios, namely the load usage scenario and the roof area scenario. There are 45 buildings that have tourism activities in the Jatiluwih DTW area, with a daily electricity requirement of 225.37 kWh/day. Based on the criteria for installing a Rooftop Solar Power Plant, there were five buildings that met the criteria, namely Dukuh Batur Villa, Teras Subak Homestay, Warung Dhea, Iga Lawar Restaurant, and Bhuana Agung Restaurant. Based on the investment feasibility study using the Net Present Value, Profitability Index, and Payback Period methods, it shows that the investment in designing a Rooftop Solar Power Plant with a scenario based on load requirements has 2 feasible buildings, namely the Iga Lawar Restaurant and Bhuana Agung Restaurant, and based on the roof area scenario it shows the design investment Solar Power Plant Jatiluwih World Cultural Heritage Area is not feasible to implement.
RANCANGAN PLTS ATAP DI GEDUNG RUMAH JABATAN GUBERNUR PROVINSI BALI Ayu Anggasari, Ni Luh; Dwi Giriantari, Ida Ayu; Sukerayasa, I Wayan
Jurnal SPEKTRUM Vol 10 No 4 (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.i04.p15

Abstract

Indonesia aims to achieve a 23% utilization of new renewable energy (EBT) by 2025. This form of clean and sustainable energy derives from sources such as solar, water, mini/microhydro, geothermal, and bioenergy, all of which have minimal to no environmental impact. The Provincial Government of Bali has introduced a directive to promote the adoption of EBT. The choice of the Bali Provincial Governor's Office for this initiative stems from its significant electricity consumption and its potential to serve as a model for photovoltaic solar (PLTS) development in Bali.This study delves into the conceptualization of a PLTS system installed atop the Bali Provincial Governor's residence. The design process involves determining the appropriate quantity of solar panels for the roof, evaluating the potential electrical output of the PLTS, selecting the specific PLTS model and inverter for implementation. To aid in this endeavor, the Helioscope software is employed, aiding in the visualization of the PLTS layout and its potential energy generation.Four distinct scenarios were considered in this study: In Scenario 1, a configuration employing 114 solar modules with a total capacity of 63.7 kWp is proposed, utilizing a single inverter with a capacity of 66 kW. Scenario 2 adopts a setup with 64 solar modules, yielding 35.3 kWp in capacity, coupled with a single inverter boasting 36 kW capacity. Scenario 3 envisions the installation of 142 solar modules generating 78.1 kWp, harmonized with a lone 80 kW inverter. Lastly, Scenario 4 opts for 64 solar modules producing 35.3 kWp, each equipped with 22 microinverters with a capacity of 2000 Watt.
SIMULASI DAN ANALISIS DAMPAK PLTS DAN BESS TERHADAP DROP TEGANGAN PADA SISTEM KELISTRIKAN NUSA PENIDA Pranipata, IND; Kumara, INS; Sukerayasa, IW; Giriantari, IAD; Setiawan, IN; Ariastina, WG
Jurnal SPEKTRUM Vol 11 No 2 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

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Abstract

Nusa Penida, Nusa Ceningan, and Nusa Lembongan or known as Tiga Nusa are very famous tourist destinations in Bali Province. The growth of tourism in Tiga Nusa has resulted in demand for electrical energy increasing every year. In order to meet the electrical energy needs in Tiga Nusa, the PLN continues to strive to improve the quality of the Nusa Penida electricity system. One of PLN's efforts is to build a Solar Power Plant that is interconnected with BESS. This research aims to analyze the effect of Solar Power Plant and BESS on voltage drops in the Nusa Penida electricity system. This research was carried out by simulation using electricity system dynamic simulation software. The simulation will be carried out with 3 scenarios. The results of this research are that Solar Power Plant interconnected with BESS has a good influence on the Nusa Penida Electricity System, as evidenced by the simulation results for scenarios 2 and 3 which have better voltage drop values compared to scenario 1.
PERANCANGAN PLTMH SUNGAI YEH HA DI KARANGASEM DENGAN TURBIN CROSSFLOW Virgunia, D. A.; Sukerayasa, I W.; Ariastina, W. G.; Setiawan, I N.; Giriantari, I. A. D.; Satya Kumara, I N.
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.p29

Abstract

Yeh Ha River in Ababi Village, Karangasem Regency, Bali, is a river that originates from the Yeh Ha springs and is used as a bathing place. This river has the potential for a new renewable energy source that can be utilized for the Micro Hydro Power Plant (MHPP). Discharge measurements were carried out for a week on one of the Yeh Ha spring source channels during the dry season. The results showed an average discharge of 0.201 m3/s. The discharge data used is the minimum potential energy that can be absorbed. Based on the measured discharge data and the used head of 4.6 m, the Tanaka Suiryoku Turbine Selection Chart shows that the crossflow turbine meets the turbine selection criteria. The results of the analysis and calculations show that the available power at the turbine is 8 kW with an efficiency of 80%. A 3-phase synchronous generator with a permanent magnet rotor was selected based on a comparison of the types, specifications, and characteristics of the generator to match the turbine capacity. The output power generated by the generator is 6 kW with a rotational speed of 1500 rpm and a generator efficiency of 90%.
SIMULASI DAN ANALISIS DAMPAK PLTS DAN BESS TERHADAP KESTABILAN FREKUENSI SISTEM KELISTRIKAN NUSA PENIDA Harahap, RS; Kumara, INS; Sukerayasa, IW; Giriantari, IAD; Setiawan, IN; Ariastina, WG
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

The islands of Nusa Penida, Nusa Lembongan, and Nusa Ceningan are some of the famous tourist destinations in Bali. The growth of tourism in the area has increased the demand for electrical energy. PLN is committed to improving infrastructure by building a solar power plant and BESS in Nusa Penida. This research aims to analyze the impact of implementing PLTS and Battery Energy Storage Systems (BESS) on the frequency of the electricity system in Nusa Penida. This research uses a simulation with two scenarios in three different conditions. Scenario 1 is simulated by releasing the Cogindo generating unit from the Nusa Penida electricity system with three conditions, namely an electricity system without PLTS and BESS, an electricity system with PLTS, and an electricity system with PLTS and BESS. Scenario 2 is simulated by removing the Ceningan feeder from the Nusa Penida electricity system with the same three conditions. Simulations were carried out to determine the effect of PLTS and BESS on frequency changes. The simulation results show that frequency changes are still within the limits regulated by the Minister of Energy and Mineral Resources Regulation Number 20 of 2020.
ANALISIS AIR CONDITIONER PADA KOMPLEK PERUMAHAN DI KOTA DENPASAR Bhuana, I.G.A.T.; Kumara, I.N.S.; Giriantari, I.A.D.; Ariastina, W.G.; Setiawan, I.N.; Sukerayasa, I.W.
Jurnal SPEKTRUM Vol 11 No 2 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

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Abstract

Green building retrofit is an approach that involves modifying or enhancing existing buildings to achieve higher standards of sustainability and energy efficiency. By conducting an energy audit first, it's possible to identify potential energy savings in the housing, as well as components that need to be upgraded to reach the desired level of sustainability. Retrofit solutions may include the use of implementation of efficient HVAC systems, energy-saving lighting, and better energy management. The aim of this research is to explore the potential improvements that can be applied through Green Building Retrofit with a focus on energy efficiency and sustainability in Jadi Pesona II Barat Housing, comparing the energy consumption conditions of houses before and after the energy audit, as well as calculating the payback period for occupants after the retrofit implementation. After the energy audit and Green Building Retrofit, daily energy usage in homes in Perumahan Jadi Pesona II Barat decreased from 47.45 kWh per day to 36.91 kWh per day. This indicates a reduction of 10.54 kWh per day or approximately 22.22% from the previous conditions, and the payback period analysis results show that almost all air conditioners show values in line with the project investment feasibility parameter, which is below 4.2 years.
Co-Authors Aditya Perdana Putra Purnomo Agus Ryzky Martha, Gede Agus Selamet Duniaji Ananta Mahanata, I Gusti Putu Ariastina, WG Awgustus Patandean Ayu Anggasari, Ni Luh Bagas Maruli Pangaribuan Baskara Formasakti Bhuana, I.G.A.T. C. G. Indra Partha Caesar, B Cecep Yudhie Rachmat Derren, M. Dewa Made Wiharta Dewa Nyoman Tri Budiantara Dewa Putu Ari Laksana Diva Aristia, Gusti Bagus Duman Care Khrisne Gallant Pradika Gede Agus Ryzky Martha H. Kristiawan Harahap, RS I G.N.A.B Rama Wahyu Dewangga I Gde Antha Kasmawan I Gde Ari Biantara I Gede Agus Januar Ariawan I Gede Civavisna Brahma I GN Dion Adiputra I Gusti Made Ngurah Desnanjaya I Gusti Ngurah Adhy Pradhana I Gusti Ngurah Winanda Wijaksana I Gusti Putu Mastawan Eka Putra I Kadek Adi Darmadi I Kadek Adi Febriana Putra I Kadek Juniarta I ketut Gede Darma Putra I Ketut Jati I Ketut Wiryajati I Komang Ogik Parmana Putra I Komang Widi Astawa I Made Aditya Nugraha I Made Agus Sastradiangga I Made Anom Sutrisna Wijaya I Made Dwi Ardiada I Made Sankhya Pranata Adiguna I MADE SUDARMA I Made Wahyu Darmahesta I N Satya Kumara I Nengah Widiana I NS Kumara I Nyoman Budiastra I Nyoman Cita Artawa I Nyoman Setiawan I Nyoman Setiawan I NYOMAN WIJAYA I Putu Adi Pradnyana Wibawa I Putu Andithya Chrisna Budi I Putu Arsikaputra I Putu Eka April Yanto I Putu Putrayana Wardana I W A WINARTA I Wayan Ambarayana I Wayan Arta Wijaya I Wayan Raka Ardana I Wayan Sukerayasa I Wayan Sukerayasa I Wayan Supartha I. K. G. D. Putra I. N. S. Kumara I. P. Krisna Darma Putra I. W. Sukerayasa, I. W. I.G.A.B. Adiputra I.G.A.D. Sasmita I.N.S. Kumara I.N.S. Kumara, I.N.S. I.W. Sukerayasa, I.W. I.W.G.A Anggara Ida Bagus A. Swamardika Ida Bagus Ketut Sugirianta IGA Andita Putra IGA Sri Melati Intan Aprilia Medina Intan Aprilia Medina Junivan Junivan Kadek Agus Nata Riadnyana Kadek Dwi Damarian Kavlin Rafhel Panjaitan Kenny Angel Manik komang jaryanta aryamantara Kumara, I. N. S. Laili Asdiyan Salsabila Ayu Leba, G. I. M. Lie Jasa Linawati Linawati Linawati Linawati Luh Ria Atmarani M Sudarma M. Sudarma M.R. Wicaksana Made Aryawan Made Sudarma Made Sudarma Made Sumantera mahadi putra Marcelinus Anggiat Situmorang Margareta Yuniari Michael Candra Santoso N. A. Kartono Nadhif Dewayana, Zevardy Natapathy, Ranga Bayu NEVIATY PUTRI ZAMANI Ngakan Satria Utama Ngurah Indra ER Ni Made Neli Lestari Ni Made Wartini Norberto Soares Oya Iman Sanjaya P. M. Prihatini P.A. Sujana Partogi Manalu, Eli Musa Reja Poppy Diana Sari Pranipata, IND Purna Suartawan, Gede Putu Manik Prihatini Richard Antony Suatan Risky Aswi R, Risky Rukmi Sari Hartati Setiawan, I N. Setiawan, I.N. Setiawan, IN Setiawan, Putu Ayu Citra Simon Junior Sinaga, P. M. Sugirianta, Ida Bagus Ketut Sukerayasa, IW Suriana, I Wayan Swamardika, IB. Alit Tjok Gede Indra Partha Virgunia, D. A. W.G. Ariastina Wahyudi Ernest Putra Wayan Gede Ariastina Wayan Gede Ariastina Widiandika Putra, I Wayan Dicky Wira Dharma, Gede Agus Yohanes Made Arie Prawira Yudha Anggara Putra Yusuf Firmansyah, Ahmad