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All Journal Elkom: Jurnal Elektronika dan Komputer JTERA (Jurnal Teknologi Rekayasa) JITTER (Jurnal Ilmiah Teknologi Informasi Terapan) Journal of Energy and Electrical Engineering (JEEE) REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat Brilliance: Research of Artificial Intelligence Jurnal Impresi Indonesia Jurnal Teknik Elektro
Yudi Barnadi
Universitas Widyatama
Religion Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Social Sciences Other

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Perancangan Sumber Listrik Tenaga Surya dengan Sistem on Grid Tanpa Menggunakan Baterai Sikken, Soni; Barnadi, Yudi; Suryana, Ase
Jurnal Impresi Indonesia Vol. 4 No. 9 (2025): Jurnal Impresi Indonesia
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jii.v4i9.6967

Abstract

Pencabutan subsidi tarif listrik telah mengakibatkan peningkatan beban biaya listrik bagi masyarakat. Penelitian ini bertujuan merancang dan menganalisis performa sistem pembangkit listrik tenaga surya (PLTS) on-grid tanpa baterai untuk aplikasi rumah tangga. Metode penelitian mencakup perancangan sistem dengan 8 panel surya polikristalin 270 WP, inverter 5 kW, dan KWH meter ekspor-impor. Hasil pengujian selama 6 bulan (Maret-Agustus 2023) menunjukkan bahwa sistem mampu menghasilkan total energi sebesar 4030 kWh dengan rata-rata produksi harian 18-22 kWh pada kondisi optimal. Faktor eksternal seperti intensitas cahaya matahari dan kondisi cuaca berpengaruh signifikan terhadap efisiensi sistem, dengan penurunan produksi energi hingga 40-50% pada musim hujan. Total energi yang diekspor ke jaringan PLN mencapai 1338 kWh, yang menghasilkan penghematan biaya sebesar Rp 1.478.081 berdasarkan kebijakan kompensasi 65% dari nilai ekspor. Hasil perbandingan dengan studi terdahulu menunjukkan bahwa sistem tanpa baterai ini memiliki keunggulan dalam efisiensi biaya awal hingga 40% meskipun memiliki keterbatasan dalam kontinuitas pasokan daya. Simpulan penelitian mengindikasikan bahwa PLTS on-grid tanpa baterai merupakan solusi ekonomis untuk mengurangi ketergantungan pada jaringan listrik konvensional, dengan payback period 5-7 tahun. Penelitian ini merekomendasikan optimasi sistem melalui penyesuaian orientasi panel dan pertimbangan kebijakan tarif ekspor yang lebih menguntungkan.
Design and Analysis of a Hexagonal Patch Antenna Operating at 3.5 GHz for Wireless Communication Applications Barnadi, Yudi; Kurniaviep Sugeng , Ajeng Mayang; Suryana , Ase; Santiko, Arief Budi
Jurnal Teknik Elektro Vol. 16 No. 2 (2024)
Publisher : LPPM Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jte.v16i2.13902

Abstract

Microstrip antennas are widely recognized for their compact structure, low profile, and ease of fabrication, making them highly suitable for modern wireless communication systems. Traditionally, these antennas incorporate a rectangular metallic patch as the radiating element. In this study, a novel microstrip antenna design featuring a hexagonal metal patch is proposed, specifically optimized to resonate at 3.5 GHz, a frequency band allocated for 5G wireless communication applications. The antenna is constructed on an F4BMX220 substrate with a thickness of 1.5 mm, chosen for its favorable dielectric properties and mechanical stability. The feeding mechanism employs an inset-fed microstrip line, enabling better impedance matching and improved power transfer. A full ground plane is used on the underside of the substrate to enhance isolation and minimize back radiation. The complete design, simulation, and optimization processes are carried out using CST Studio Suite, a professional electromagnetic simulation tool. Key performance parameters such as return loss (S11), directivity, and gain are thoroughly analyzed. The design aims to achieve an S11 value below -10 dB, ensuring efficient radiation at the target frequency. With its optimized structure and favorable performance, the proposed antenna serves as a promising candidate for integration into next-generation 5G communication systems. Based on the fabricated prototype, the antenna demonstrates a gain of 4.5 dBi and a bandwidth of 24 MHz.
Education on Solar Cell Technology to Increase Clean Energy Literacy in Cileles Village, Sumedang Mayang, Ajeng; Ardiansyah, Neris Peri; Barnadi, Yudi; Suryana, Ase
REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat Vol 7, No 1 (2026): Reka Elkomika
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaelkomika.v7i1.80-88

Abstract

Indonesia is in the process of transforming its energy system to reduce its dependence on fossil fuels and lower greenhouse gas emissions. This effort aligns with SDGs 7 and the national target of achieving a 23% share of renewable energy shared by 2025. However, low community energy literacy remains a significant obstacle, as seen in Cileles Village, Sumedang, which has considerable but underutilized solar energy potential. This community service program aimed to strengthen energy literacy and awareness of renewable energy by providing education on solar cell technology through a Participatory Action Research (PAR) approach. This activities included preparation, interactive learning, practical demonstrations using a solar cell model, and evaluation through pre- and post-tests. Implemented in August 2025 with 30 participants, the program successfully increased understanding of clean energy and encouraged interest in renewable energy adoption.
Co-Authors Ajeng Kurniaviev Ajeng Mayang Kurniaviep Sugeng Aji Mutakin Ardiansyah, Neris Peri Arief Budi Santiko, Arief Budi Ase Sunarya Ase Suryana junaidi, dhani K.S., ajeng mayang Kurniaviep Sugeng , Ajeng Mayang Mayang K S, Ajeng Mayang, Ajeng Neris Peri Ardiansyah Nurdiansyah, Rian Sikken, Soni Suryana , Ase Suryana, Ase Suryana, Ase Viev, Ajeng Kurnia yusuf, mirza habibulloh