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STUDI TERHADAP KONSERVASI ENERGI PADA GEDUNG SEWAKA DHARMA KOTA DENPASAR YANG MENERAPKAN KONSEP GREEN BUILDING I Wayan Swi Putra; I Nyoman Satya Kumara; I Gede Dyana Arjana
Jurnal SPEKTRUM Vol 2 No 4 (2015): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

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Abstract

Gedung Sewaka Dharma Kota Denpasar dibangun dengan konsep desain green building. Dengan konsep desain green building, gedung Sewaka Dharma diharapkan mampu menghemat energi di dalam pengoperasiannya. Konsep desain green building yang diterapkan antara lain, gedung dibuat dengan banyak jendela kaca, memakai sistem ventilasi vertikal, lingkungan di dalam dan di luar gedung yang hijau serta pemakaian solar sel untuk lampu penerangan luar dalam mengurangi konsumsi energi. Dari hasil studi yang dilakukan ada perbedaan antara perencanaan dan realisasi dalam pembangunannya. Suhu dan kelembaban yang tinggi mengakibatkan terjadinya pemasangan AC di masing-masing ruangan. Suhu dan kelembaban yang tinggi diakibatkan karena tidak berjalannya sistem ventilasi alami pada gedung tersebut. Hal ini mengindikasikan bahwa konsep green building yang diterapkan pada gedung Sewaka Dharma tidak mampu menciptakan lingkungan kerja yang nyaman bagi pegawainya.
REVIEW STATUS PANEL SURYA DI INDONESIA MENUJU REALISASI KAPASITAS PLTS NASIONAL 6500 MW Ni Made Neli Lestari; I Nyoman Satya Kumara; Ida Ayu Dwi Giriantari
Jurnal SPEKTRUM Vol 8 No 1 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (420.743 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i01.p4

Abstract

PLTS is a power plant that converts sunlight energy into electricity using photovoltaictechnology. Solar panels play an important role in PLTS, because solar panels capture solar radiationthen convert it into electrical energy. The development of solar panel technology is the key to supportthe development of PLTS. This article reviews about the development of solar panels in Indonesia asan important component to support the development of national solar power plants towards a capacityof 6500 MW by 2025. The review will be carried out on various aspects of solar panels including thenational solar panel industry, solar panels available in the domestic market, and the availability ofvarious panels. Data is obtained from the national panel industry, the PLTS project, the PLTS userassociation, the national EPC, the Ministry of Energy and Mineral Resources, and the national solarpanel vendor. The survey result shows there are 241 panels, both local and foreign production. Panelcapacities vary from 5 Watt to 500 Watt and panel voltages are available from 12 Volt, 24 Volt and 48Volt. Based on the survey, it is also obtained the average of Rp/Wp is Rp.18,853/Wp and the averageof W/m2 is 159,46 W/m2. Increasing solar panel production can be done by providing incentives tosolar panel producers in the form of product purchase guarantees and incentives to develop newfactories. Information regarding the current status of solar panels in Indonesia is expected to be aquick reference for people or institutions that need it, and can be used as an introduction to researchand application of PLTS in Indonesia.
UNJUK KERJA PEMBANGKIT LISTRIK TENAGA SURYA ROOFTOP 158 KWP PADA KANTOR GUBERNUR BALI M.R. Wicaksana; I.N.S. Kumara; I.A.D Giriantari
Jurnal SPEKTRUM Vol 6 No 3 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (433.879 KB) | DOI: 10.24843/SPEKTRUM.2019.v06.i03.p15

Abstract

The Provincial Government of Bali is collaborating with the Ministry of Energy and Mineral Resources for the developing a 158 kWp rooftop solar power plant that connected to the grid of PLN. The energy produced so far has reduced the supply of electricity from PLN in the Bali Governor's Office area. The purpose of research studies is know the potential energy produced by solar power plant 158 kWp. Energy production is estimated using HelioScope simulation. Data needed includes location of the solar power plant, and solar power plant technical specifications. The simulation produces total energy data in a year of 249,764 kWh/year with the highest energy occurring in May of 24,172 kWh and the lowest energy occurring in January of 16,226 kWh.
PERANCANGAN PLTS UNTUK PERAHU NELAYAN TRADISIONAL SEBAGAI PENGGANTI GENSET I Putu Indra Saputra; I Nyoman Satya Kumara; Cok Gede Indra Partha
Jurnal SPEKTRUM Vol 6 No 4 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (435.809 KB) | DOI: 10.24843/SPEKTRUM.2019.v06.i04.p15

Abstract

Nelayan tradisional adalah nelayan yang menangkap ikan pada malam hari, menggunakan perahu kecil. Nelayan menggunakan lampu sorot halogen yang dicatu dengan genset kecil, untuk menarik perhatian ikan. Kendala yang dihadapi nelayan yaitu harga minyak yang semakin mahal, kelangkaan minyak, getaran dan suara berisik dari genset yang membuat ikan takut mendekat, konsumsi energi yang tinggi dari lampu sorot halogen, serta polusi udara dan emisi karbondioksida dari penggunaan genset. Solusi yang ditawarkan yaitu mengganti genset dengan PLTS. PLTS yang dirancang yaitu, 2×80 ???????? modul surya dirangkai seri, 10 ???? charger controller dan 2×70 ????? baterai dirangkai seri untuk menyuplai 4×30 ???? lampu sorot LED. PLTS ini mampu memenuhi kebutuhan energi sebesar 174,52 kWh/tahun, dari 175,2 kWh/tahun, jadi sebanyak 99,6 % kebutuhan energi telah mampu disuplai. Investasi awal sistem PLTS ini yaitu 10.639.500 rupiah, dengan pengurangan emisi karbondioksida sebesar 63.291.569 ????????/?????????????????.
ANALISIS UNJUK KERJA PLTD-G 40 KW BERBAHAN BAKAR MINYAK DIESEL DAN PELET BIOMASSA (STUDI KASUS DI PT INDONESIA POWER BALI) Yohana Fransisca Sarumpaet; I Nyoman Satya Kumara; Wayan Gede Ariastina
Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (457.255 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i04.p9

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Fossil-fueled power plants are still the world’s backbone in terms of electricitygeneration, including in Indonesia. This will continue to increase due to the high demand ofelectricity. Meanwhile, the amount of fossil fuels is limited and fossil fuel creates exhaustemissions. Therefore, it is required to look for clean and renewable electricity generationmethods. The development of Diesel Gasifier Power Plant carried out by PT Indonesia PowerBali aims to reduce the use of diesel by using syngas obtained from gasification of biomasspellets. This study analyzes the performance of the Diesel Gasifier Power Plant at PT IndonesiaPower Bali. The results show that the use of syngas reduces the use of diesel, this is indicatedby the fuel consumption ratio between diesel and syngas, which is 56% diesel and 44% syngas.The results also show that the Diesel Gasifier Power Plant has an efficiency of 63% and acapacity factor of 58%.
GRID TIE INVERTER UNTUK PLTS ATAP DI INDONESIA: REVIEW STANDAR DAN INVERTER YANG COMPLIANCE DI PASAR DOMESTIK P.G.G. Priajana; I.N.S. Kumara; I.N. Setiawan
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (513.226 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i02.p9

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The Government started a million solar rooftop movement to help accelerate Indonesia'srenewable energy target in 2025. In effect of ministerial regulation 49/2018, householdcustomers are able to install grid tie photovoltaic and export excess energy to PLN. Inverter is acomplex and a vital component to the performance of grid tie photovoltaic systems, thereforeinverter used must follow applicable standard. This article reviews the avaibility of inverters forsolar rooftop in Indonesia. The purpose of this article is to know the avaibility of inverter andhow they are seen from applicable standard. From this research produced inverter databaseconsisted of 513 inverter models. Inverter database then analyzed seen from its manufacturingstatus, inverter power output capacity, THD output, efficiency, and price. This information iscrucial in choosing quality inverter so rooftop photovoltaic would work effectively andsustainably. Presently various inverters with capacity 0,5 kW - 10 kW already available which issuitable for solar rooftop application. There are already plenty inverters with THD output <3%that conform with Indonesia’s standard but many also still have not listed their THD output.Inverter efficiency is already >95% and available with an average price of Rp3,435,380/kW. Listof inverter models that conform standard and certification presented in a table which served asoutput of this research.
SIMULASI UNJUK KERJA PLTS 1 MW KAYUBIHI JIKA MENGGUNAKAN SUN TRACKING SYSTEM I.P.A. Wiranata; I.N.S. Kumara; I.W. Sukerayasa
Jurnal SPEKTRUM Vol 6 No 4 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (424.587 KB) | DOI: 10.24843/SPEKTRUM.2019.v06.i04.p2

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The Kayubihi PLTS is a PLTS with a capacity of 1 MWp. The Kayubihi PLTS solar module is installed in a fixed configuration, installed facing north with a tilt angle from the ground surface of 15 °. In a condition without a tracker, the Kayubihi PLTS generates an annual energy of 1656.2 MWh. In this paper a simulation will be carried out to find out how much energy the PLTS Kayubihi has when it has a sun tracker system installed. This tracker system simulation will be made in 2 scenarios. Scenario 1 uses a single axis tracker system where the solar module will move to follow the sun from east to west. Scenario 2 Kayubihi PLTS is equipped with a multi axis tracker system that moves in the direction of the sun from east to west and north to south. Simulations using a single axis tracker system produce annual energy of 2096.1 MWh. While simulations using the multi axis tracker system produce an annual energy of 2159.8 MWh. When compared with existing conditions, the use of a single axis tracker system gets an increase in energy of 439.9 MWh and if using a multi axis tracker system an energy increase of 503.6 MWh is obtained. The annual energy difference in the single axis tracker system with the multi axis tracker system is 63.7 MWh. The total cost of installing a single axis tracker system is Rp. 560,000,000 with 70 units of tracker and installing a multi axis tracker system amounting to Rp. 700,000,000. A total of 70 units of tracker. Keywords: Kayubihi PLTS, Single Axis Tracker System, Multi Axis Tracker System. At the results of the simulation of electricity sales, the tracker system is more profitable than the system without a tracker.
Perancangan Sistem Pompa Irigasi Pembangkit Listrik Tenaga Surya (PLTS) Untuk Pertanian Subak Semaagung Oya Iman Sanjaya; IAD Giriantari; I N Satya Kumara
Jurnal SPEKTRUM Vol 6 No 3 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (565.727 KB) | DOI: 10.24843/SPEKTRUM.2019.v06.i03.p16

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In general the average rice harvest in Indonesia is three times in one year with a rice age of 115-120 days. Subak is an organization owned by farmers in Bali that specifically regulates traditional rice field irrigation systems. Subak Semaagung every year there is a shortage of water on agricultural land. Subak area of approximately 55 hectares consisting of six groups of farmers called "tempek". Agricultural water supplied to each tempek interchangeably because the water supply is very limited, so any tempek can only grow rice once in 2 years. The situation is very difficult for farmers to maintain their own rice fields with a limited water supply, so that the fields in the Subak has been largely abandoned. Previously, the Ministry of Agriculture has provided assistance in the form of diesel-powered irrigation pump system, but the diesel-powered water pumping systems are only used for 1 year because it requires a very complicated way of operational and fuel costs are enormous. This research will be designed water pump system Solar Power Plant (PLTS) for more effective than previous diesel pump. From the discussion and analysis has been done that with an area of 300 m2 can be mounted solar panels monokristaline 52.14 kW with a maximum capacity of solar modules totaling 158 units, inverter 33 kW two units, and Submersible pumps SP 60-9 two units. So that the result of the calculation of water that can be lifted inthe dry season every day is 1.275.000/liters/day. With a total investment cost of solar power water pumps Subak Semaagung ????????1.168.137.010.
Perangkat Lunak Pengolahan Citra Untuk Segmentasi dan Cropping Daun Sawi Hijau I Putu Gede Budisanjaya; I Nyoman Satya Kumara
PROSIDING CSGTEIS 2013 CSGTEIS 2013
Publisher : PROSIDING CSGTEIS 2013

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Abstrak—Tanaman sawi merupakan komoditas yang memilikinilai komersial dan digemari masyarakat Indonesia, selainmemiliki masa panen yang singkat, tanaman ini dapatdibudidayakan secara hidroponik maupun nonhidroponik.Seiring perkembangan teknologi dalam bidangpertanian khususnya greenhouse, membuat sistem monitoring,analisis nutrisi tanaman dan fertigasi dapat dilakukan dengansistem terintegrasi komputer. Sistem ini memberikankemudahan dan meminimalkan kesalahan atau error karenadipengaruhi oleh subyektivitas dan tingkat kelelahan visualmanusia. Sistem terintegrasi komputer yang dapat digunakanuntuk monitoring dan analisis nutrisi tanaman sawi dalamgreenhouse adalah machine vision. Dalam aplikasi machinevision pertanian, tahapan segmentasi citra merupakan halpenting sebelum citra dapat diproses lebih lanjut. Untukmemisahkan tanaman dari background seperti tanah danresidu. Hasil segmentasi citra dapat diproses lebih lanjut untukekstraksi fitur baik ekstraksi fitur warna, tekstur maupunbentuk, hasil dari ekstraksi fitur-fitur tersebut nantinya dapatdigunakan untuk identifikasi nutrisi tanaman atau klasifikasitanaman.Penelitian inimenggunakan metode pengembangankelebihan hijau (excesss green), thresholding Otsu, morphologiOpening, labeling RLE, bounding box dan transformasigeometri, sehingga menghasilkan perangkat lunak segmentasicitra yang mampu memisahkan daun tanaman sawi dari latarbelakang (background) dengan akurasi 99,16%.Kata Kunci— Segmentasi citra,daun tanamansawi, excess green, bounding box.
Studi Dampak Ekonomi dan Sosial PLTS Sebagai Listrik Pedesaan Terhadap Masyarakat Desa Ban Kubu Karangasem I Made Aditya Nugraha; Ida Ayu Dwi Giriantari; I Nyoman Satya Kumara
PROSIDING CSGTEIS 2013 CSGTEIS 2013
Publisher : PROSIDING CSGTEIS 2013

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Abstrak—Pemanfaatan energi surya sebagai sumber energi listrik di Desa Ban, bekerja secara stand alone dalam bentuk Solar Home System (SHS), dimana 65,83% SHS tidak dapat beroperasi sehingga berpengaruh terhadap kehidupan ekonomi dan sosial masyarakat.Kelanjutan dari itu, maka dilakukan penelitian dengan mengambil sampel sebanyak 62 responden, yang dipilih secara purposive sampling. 62 responden terdiri dari 31 responden dengan SHS berfungsi, dan 31 responden dengan SHS tidak berfungsi untuk menjawab kuesioner. Data hasil kuesioner yang diperoleh dianalisis dengan uji beda nonparametrik dengan uji Mann-Whitney.Hasil analisis dengan uji Mann-Whitney, menunjukan perbedaan yang bermakna antara responden dengan SHS masih berfungsi dengan responden dengan SHS tidak berfungsi dalam kehidupan ekonomi dan sosial, dengan nilai probabilitas kurang dari 0,05.Berdasarkan hasil analisis tersebut, penggunaan PLTS sebagai listrik pedesaan berdampak terhadap kehidupan masyarakat, dengan adanya peningkatan kehidupan ekonomi dan sosial masyarakat Desa Ban, Kubu, Karangasem.Kata kunci—Energi listrik terbarukan, PLTS/SHS, dampak ekonomi, dampak sosial
Co-Authors A. A. Ngurah Bagus Budi Nathawibawa A. Ibi Weking A. Jagad Miftahul Rizqy A.A. Gede Ari Pawitra Putra Abid Surya Bimantara Abinanda , IKPT Adhi Permana Aditya Perdana Putra Purnomo Adyana Putra, I Kadek Agus Mahardiananta, I Made Agus Satrya Wibawa Agus Selamet Duniaji Aldy Allan Ghozali Amien Harist Hardiansyah Ariastina, WG Aries Arimbawa Asep Andang Bayu Widiarsa Kadek Bradley Axelius C. G. Indra Partha Caesar, B Cecep Yudhie Rachmat D. Sitompul D.C. Khrisne D.Y. Manurung Darmawan, I Gede Hadi Derren, M. Dewa Nyoman Tri Budiantara Dewa Putu Ari Laksana Dharmawan, I Made Diky Dwi Girantari, Ida Ayu Dwi Giriantari , Ida Ayu Eka Yulia Indri Christanti Fajar Tri Prabowo Giusna Dipankara Kusnandar Govinda Riawan H. Kristiawan Harahap, RS Hardiansyah, Amien Harist Hasan Dedy Sudono Hendri Noviyanto Pratama I Dewa Gde Yaya Putra Pratama I Gde Ari Biantara I Gede Civavisna Brahma I Gede Dyana Arjana I Gede Hadi Darmawan I Gst Agung Putu Raka Agung I Gusti Agung Putu Raka Agung, I Gusti Agung Putu I Gusti Agung Putu, Raka Agung I Gusti Made Ngurah Desnanjaya I K Agus Setiawan I Kadek Hendy Wijaya I ketut Gede Darma Putra I Ketut Wiryajati I Made Aditya Nugraha I Made Arsa Suyadnya I Made Dwi Jendra Sulastra I Made Ginarsa I Nyoman Budiastra I Nyoman Budiastra I Nyoman Setiawan I Nyoman Setiawan I Nyoman Yudiyana I Pt Agus Surya Adi P I Putu Elba Duta Nugraha I Putu Gde Weda Setyawan I Putu Gede Budisanjaya I Putu Gede Iwan Dwipayana I Putu Indra Saputra I Putu Yudi Pramayasa I W.Y.M. Wiguna I Wayan Indrayana, I Wayan I Wayan Sukerayasa I Wayan Sukerayasa i wayan swi putra I Wayan Swi Putra I. M. R. A Anantajaya I. P. Dharmawan I.G.A.B. Adiputra I.G.A.D. Sasmita I.G.W. Artana I.N. Setiawan I.P.A. Wiranata I.W.B. Darmawan I.W.G.A Anggara Ida Ayu Dwi Giriantari Ida Ayu Putu Febri Imawati Ida Bagus A. Swamardika Ida Bagus Gede Manuaba Ida Bagus Gede Widnyana Putra Ida Bagus Ketut Sugirianta Ida Bagus Leo Mahadya Suta Ida Bagus Putra Setanu M Irwan Octopianus Silaban IW Gunarta J. Pangaribuan Jaya Kusuma, I Kadek Bagus Julius Mahendra Sihombing Junantara, I Ketut Adi Kadek Hari Merta Kadek Sumariana Ketut Vidhia Kumara Komang Bagus Dwi Widiatama Putra Komang Oka Saputra Kresna Aditya, I Putu Gede Lely Meilina Lie Jasa Lintang Pramudya Luh Ayu Sutawati M.R. Wicaksana M.T. S.T. I Wayan Sutaya . Made Dwi Mulyawan Made Pradnyana Ambara, Made Pradnyana Made Puji Dwicaksana Made Sudarma Mas Nyoman Ngadeg A. C. Moch. Farhan Arieffadillah Muhamat, Oscar Muhammad Malik Al Falah Mustika Wiyasa, I Kd N. A. Kartono N. M. A. Wijaya N. Surya Gunawan Natapathy, Ranga Bayu Ni Luh Gede Pivin Suwirmayanti, S.Kom, MT, Ni Luh Gede Pivin Ni Made Ary Esta Dewi Wirastuti Ni Made Neli Lestari Ni Putu Amanda Saraswati Ni Wayan Ernawati Ni Wayan Sri Ariyani NM Karmiathi NMAE Dewi Wirastuti Oswald Mangatur, Christian Oya Iman Sanjaya P.G.G. Priajana Paisal, Muhammad Pande K. B. Sutawan Partogi Manalu, Eli Musa Reja Pramudya, Lintang Pranipata, IND Purna Suartawan, Gede Purnawati, Ita Ayu Purwania Ida Bagus Gede Putra Padang, Christian Felix Putu Martha Risnadinata R. Sapto Hendri Boedi Soesatyo Radha Kurniawan Raka Agung, I G A Putu Rosalia Hadi Rukmi Sari Hartati Rukmi Sari Hartati Sandrawati, Syafiatun Servinus Servinus Servinus, Servinus Setiawan, I N. Setiawan, IN Simon Junior Sinaga, P. M. Siregar, Jhon Septin Maourisdo Sudarma Made Sukerayasa, IW Surung Rafael Sihaloho Syamaidzar, Ahmad Luqyanto Tjok Gede Indra Partha Virgunia, D. A. W G. Ariastina W Widiadha Wayan Gede Ariastina Wayan Gede Ariastina Widagdo, Aris Widiandika Putra, I Wayan Dicky Widyadi Setiawan Windradharama W., A.A. G. Guna Wira Dharma, Gede Agus Wulandari, NKN Yoga Divayana Yogiswara Dharma Putra Yohana Fransisca Sarumpaet Yoppy Hartantio