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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Mahasiswa TEUB Jurnal EECCIS Journal of Environmental Engineering and Sustainable Technology Indonesian Journal of Electrical Engineering and Computer Science
Unggul Wibawa
Jurnal Teknik Elektro Fakultas Teknik Universitas Brawijaya
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Energy Engineering Environmental Science Mechanical Engineering

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EVALUASI KEANDALAN SISTEM DISTRIBUSI 20 KV DENGAN MENGGUNAKAN PENGGABUNGAN METODE SECTION TECHNIQUE DAN RELIABILITY INDEX ASSESSMENT (RIA) DI PT PLN (PERSERO) ULPPORONG PADA PENYULANG JIKEN Asyhari, Ahmad Rizky; Utomo, Teguh; Wibawa, Unggul
Jurnal Mahasiswa TEUB Vol. 13 No. 1 (2025)
Publisher : Jurnal Mahasiswa TEUB

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Abstract

The need for the availability of reliable and efficient electrical energy is expected by the community as consumers. To find out how reliable and efficient a system is in supplying electrical energy to customers, it is necessary to analyze the reliability of the system. Distribution system reliability analysis can be done using several methods such as Section Technique and Reliability Index Assessment (RIA). The purpose of combining the Section Technique and RIA methods is to combine or sum up the parameters of the sustained failure rate and also the momentary failure rate. The combination of these two methods aims to complement the Section Technique method which only uses the sustained failure rate parameter. This study aims to determine the reliability index value of the Jiken Feeder of PT PLN (Persero) ULP Porong. In addition, this study will also calculate the value of economic losses received by PT PLN (Persero) ULP Porong based on the amount of Energy Not Supplied during a disturbance. To determine the reliability index value of Jiken Repository, several methods will be carried out, namely manual calculation using the Section Technique method and also a combined method (Section Technique - RIA), RIA and simulation using ETAP 19.0.1 software. The final result of the reliability index value will then be compared with the provisions of SPLN No. 59 of 1985, which shows that Jiken is categorized as unreliable because its reliability index value is above the provisions of SPLN No. 59 of 1985.Keywords : Section Technique, Combined Method, ETAP, Energy Not Supplied, Economic Loss
Pengaruh Variasi Posisi Modul Terhadap Biaya Energi dan Reduksi Emisi CO2 pada Perancangan PLTS Atap PT Lotte Packaging Ananda, Redzko; Wibawa, Unggul; Wijono, n/a
Jurnal Mahasiswa TEUB Vol. 13 No. 1 (2025)
Publisher : Jurnal Mahasiswa TEUB

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Indonesia has immense solar energy potential, with an average intensity of 4.8 kWh/m², equivalent to 112,000 GWp. However, only 10 MWp, or 0.08%, has been utilized. From an environmental perspective, rooftop solar power plants can significantly reduce CO₂ emissions. The tilt angle of solar modules influences both energy production and the performance ratio (PR). This study focuses on the impact of tilt and azimuth angles on energy output, PR, economic feasibility, and CO₂ emission reduction. Two scenarios are analyzed based on different angle combinations. A rooftop solar power plants system is considered technically feasible if the PR falls within the 75-80% range. Economic feasibility is assessed using methods such as Cost of Energy (COE), Net Present Value (NPV), Profitability Index (PI), Payback Period (PP), Internal Rate of Return (IRR), and Return on Investment (ROI) over a 30-year project period. Emission reductions are calculated using grid emission factors, assuming a 1% annual degradation rate for the PLTS. Scenario 1 produced 2,479,926 kWh with a PR of 87%, while Scenario 2 generated 2,474,835 kWh with a PR of 86.98%. Both scenarios are economically viable; however, Scenario 1 is more favorable, with a COE of Rp986.35/kWh, an NPV of Rp14,284,057,871, a PI of 1.52, a payback period of 12 years, 3 months, and 11 days, an IRR of 10.89%, and an ROI of 52.01%. Additionally, Scenario 1 achieved greater CO₂ emission reduction, totaling 54,224 tons over 30 years, compared to Scenario 2.Keywords : solar PV, angle variations, economic analysis, CO2 reduction
Dampak Variabilitas Downtime terhadap Kerugian Energi dan Kerugian Ekonomis pada Pembangkit Listrik Tenaga Minihidro (PLTM) Cikaengan-2, PTCikaengan Tirta Energi (CTE) Akbar, Muhammad Yoga Rochmanu; Wibawa, Unggul; Utomo, Teguh
Jurnal Mahasiswa TEUB Vol. 13 No. 1 (2025)
Publisher : Jurnal Mahasiswa TEUB

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Downtime merupakan waktu tidak berfungsinya mesin akibat kegagalan mekanik dan elektrik serta kerusakan pada penstock, waterway, dan DAS, yang berdampak pada efisiensi dan produksi energi di PLTM Cikaengan-2 dengan kapasitas terpasang 7,2 MW (2 unit, masing-masing 3,6 MW) dan faktor kapasitas 75%. Penelitian ini menggunakan metode Specific Water Consumption (SWC), Failure Mode Effect and Analysis (FMEA), Overall Equipment Effectiveness (OEE), Break Event Point (BEP), dan Return on Investment (ROI) untuk menganalisis efisiensi, keandalan, dan dampak downtime terhadap energi dan ekonomi. Hasil menunjukkan bahwa SWC target (1,0735 m³/MWh) tidak tercapai pada 2022 (0,9815 m³/MWh) dan 2023 (0,9632 m³/MWh), namun membaik pada 2024 (1,0648 m³/MWh). Kerugian energi akibat downtime tercatat sebesar 1.110,862 MWh (2022), 1.937,417 MWh (2023), dan 35,827 MWh hingga Juni 2024, dengan penyebab utama pada penstock (2022: 60,57%) dan DAS (2023: 70,89%). Penalti 15% akibat ketidaksanggupan memenuhi DOP > 73% menghasilkan kerugian finansial Rp5,80 miliar (2022), Rp6,98 miliar (2023), dan Rp3,10 miliar (2024). BEP maksimum dengan penalti tercapai dalam 10,97 tahun (ROI 8,14%), sementara BEP aktual dengan pertumbuhan produksi 14% membutuhkan 18–20 tahun. Pertumbuhan produksi 27% diperlukan untuk menyamai skenario maksimum dengan BEP 11 tahun dan ROI 22,25% tanpa penalti. Secara keseluruhan, downtime, variabilitas RPN, dan kebutuhan pertumbuhan produksi energi 27% secara signifikan memengaruhi efisiensi, keandalan, serta kelayakan finansial PLTM sesuai permen ESDM No.10 Tahun 2017.Kata Kunci—Downtime, Kerugian Energi, Kerugian Ekonomis, Pembangkit Listrik Minihidro (PLTM)
Analisis Perbandingan Tiga Metode Estimasi Kebutuhan Energi Listrik Tahun 2025–2034 pada PT PLN UID Jawa Barat Reza, Dana Ammar; Wibawa, Unggul; Nurwati, Tri
Jurnal Mahasiswa TEUB Vol. 13 No. 7 (2025)
Publisher : Jurnal Mahasiswa TEUB

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Penelitian ini menyajikan estimasi kebutuhan energi listrik PT PLN UID Jawa Barat periode 2025–2034 guna mendukung perencanaan kapasitas dan penguatan jaringan pada empat sektor (rumah tangga, industri, bisnis,dan umum). Tujuan utamanya adalah membandingkan tiga pendekatan yang umum digunakan yaitu DKL 3.2, regresi linear, dan LEAP serta menilai akurasinya terhadap data aktual 2021–2024. Metode yang digunakan meliputi penyusunan dataset 2020–2024, pemodelan per sektor, danevaluasi akurasi menggunakan indikator MAD, MSD, RMSE, dan MAPE, kemudian melakukan proyeksi tahunan 2025–2034. Hasil menunjukkan LEAP menjadi metode terbaik baik untuk pelanggan (MAPE 0,17%) maupunkonsumsi energi (MAPE 0,78%). Pada estimasi tahun 2034, proyeksi LEAP mencapai 25.751.278 pelanggan dengan konsumsi 119.130,2 GWh, selaras dengan tren pertumbuhan 2020–2024. Temuan ini merekomendasikan LEAP sebagai baseline perencanaan, sementara DKL 3.2 dan regresi lineardigunakan sebagai metode pembanding. Kata Kunci— Kebutuhan Listrik, Estimasi, Pelanggan Listrik, Konsumsi Listrik, DKL 3.2, Regresi Linear, LEAP.
Co-Authors Adhi Purbo Putranto Adinata, Dwi Andhika Valent Afwega Bagas Kena Pranata Ahmad Zaki Ramadhani Akbar, Muhammad Yoga Rochmanu Akiyat, Muhammad Haekal Aldian Eka Fitranto Aldo Julian Hastono Alfarizy, Muhammad Mahdiy Alfian Sakti Pamungkas Ali Ridho Alief Nasruddin Ananda, Redzko Andre Prasetya Andy Darmawan Angela Sembiring Anshar Affandy Arbi Ramadhan Arief Y., Primanda Ariella, Syafika Safa Arifin Surya Winarto Arizqun Anwar Fatcha Armeyelia, Bulan Asmungi, Gaguk Asyhari, Ahmad Rizky Ayyub Setiyoso Bobby Pratama Bryan Malvin Budi Agung Raharjo Darryl Octaviyanto Kusputra Dhofir, Mochammad Dhofir, Mochammad Ditto Adi Permana Ditza Pasca Irwangsa E. Wakama, Tamunonengi Eka Citra Agustini Eka Mardiana Engga Kusumayoga Fakhruddin Ar Rozi Faza Azmi Hidayat Firly Azka Nurhidayah Frandicahya P., Akhmad Gita Andrika Sari Gitawan Dimas Prakoso Hadi Suyono Hafidh, Muhammad Yusril Haidar, Achmad Hari Santoso Harry Soekotjo Dachlan Hery Purnomo Hidayat, n/a Imam Suwandi Imtiyaz, Kholis Irvan, Muh. Zulvi Ismail Abdan Syakuro Firmansyah Ismail Musirin Jawoto Tri Prabowo Jayadiyuda, I Wayan Angga Kemal Pasha Pramudianto Khairil Anwar Khalid, Farhan Firzatullah Khatijah Sofia Surya Putri Suharyanto Kosa Shantia Kurniawan, Ferryo Lenz Lavelia Permata C. Lukmanul Hakim Lunde Ardhenta Maharani, Bella Fathia Mahfudz Shidiq Malamansyah, Triamelia Salsabila Mardotillah, Nanda Azizah Maulidina, Nabila Vida Miranda Christine Moch Dhofir Moch. Dhofir Moch. Dhofir Mochamad Azwar Anas Mochamad Shofwan Rizqulloh Mochammad Abdul Ghofur Mohammad Fahririjal Mokhammad Wildan Dahlan Muhammad Alaudin Tri Kurnia Muhammad Daniyal Muhammad Haekal Akiyat Muhammad Rigadho Suprayogi n/a Hariyono n/a Soeprapto n/a Wijono n/a Wijono Nainggolan, William Sutan Nisa, Rizqa Ulya Fakhrun Nur Rahma Dona Nur Subhan Nurhakiki, Mauludiya Annisa Pradana Anoraga Tinto Pradhana, Raka Radithya Pratama, Muhammad Pashya Rifky Putra, Ade Mahendra Darma Rachendra, Bima Denatta Ramadhan, Muhammad Indrata Ramadhani, Ahmad Zaki Rendy Previanto Retno Puji Lestari Reza Sufi Al Kamil Reza, Dana Ammar Rifdillah Zulafa Rini Nur Hasanah Rizki, Fahrina Novia Rizky Hamid Robbyansyah Rizqi Wahyu Rahmariadi Rohman, Deny Fatkhur Rosi David Rosihan Arby Harahap Rosihan Arby Harahap Ruditta Devianti Rusli, Mochammad Satrio Wicaksono Shiddiq, Muhammad Fatihul Shufinah, Syahla Siregar, Josua Hatorangan Suyono, Hadi Syarif, Habib Teguh Utomo Titis Aridanti Pratiwi Tri Nurwati Triyoga, Joseph Kristian Ullin Dwi Fajri A. Utomo, Muhamad Afiq Nur Warda Islamiyah Wijono, n/a Wiwin Wahyuni Yudhistira Rizal Firmansyah Yulistiono, Irwan Zainuri, Akhmad Zulfikar Subagio