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All Journal ETIKONOMI JOURNAL OF ELECTRICAL AND SYSTEM CONTROL ENGINEERING RELE: Rekayasa Elektrikal dan Energi Jurnal Teknik Elektro Maneggio: Jurnal Ilmiah Magister Manajemen Bulletin of Computer Science and Electrical Engineering (BCSEE) Operations Management and Information System Studies Visioner & Strategis Management Research and Behavior Journal

Widyana Verawaty Siregar

Universitas Malikussaleh

Author-ID : 768695

Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Social Sciences Other

Published : 13 Documents Claim Missing Document

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PENGGUNAAN LED PADA LAMPU PENERANGAN JALAN UMUM UNTUK MENINGKATKAN EFISIENSI DAN PENGHEMATAN ENERGI LISTRIK Arnawan Hasibuan; Widyana Verawaty Siregar; Ikhsan Fahri
JOURNAL OF ELECTRICAL AND SYSTEM CONTROL ENGINEERING Vol 4, No 1 (2020): Journal Of Electrical And System Control Engineering Agustus
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jesce.v4i1.3978

Perkembangan teknologi saat ini telah mengarahkan pemakaian lampu untuk PJU yang lebih efisien dan hemat energi. Teknologi tersebut adalah melalui penggunaan lampu LED (Light Emitting Diode) beserta luminernya. Teknologi LED merupakan salah satu teknologi yang berkembang secara cepat dengan potensi penghematan energi yang signifikan. Dalam kondisi tertentu, lampu PJU yang menggunakan teknologi LED dapat mengurangi penggunaan energi hingga 60% [5]. Keuntungan lain yang diperoleh dari efisiensi energi pada sistem PJU adalah untuk mendukung target pengurangan emisi gas rumah kaca (GRK). Dengan menggunakan faktor emisi rata-rata jaringan nasional sebesar 0,762 kg CO2e/kWh, diestimasikan sedikitnya sistem PJU Indonesia mengeluarkan emisi GRK sebesar 2,4 juta ton CO2 setiap tahunnya.

Bankruptcy Prediction Models and Stock Prices of the Coal Mining Industry in Indonesia Ghazali Syamni; M. Shabri Abdul Majid; Widyanana Verawaty Siregar
ETIKONOMI Vol 17, No 1 (2018)
Publisher : Faculty of Economic and Business

Various bankruptcy prediction models have been used to measure the movement of stock prices, and thus the firms’ performance. This study is aimed at empirically exploring the usefulness of the Olhson, Almant Modification, Grover, Springate, and Zmijewski models for predicting bankruptcy of the 19 coal mining companies. It also attempts to measure the effects of the scores of these bankruptcy prediction models on the stock prices of the coal mining companies in Indonesia. The technique of analysis that used in this research is panel regression. The results of the study showed that the bankruptcy prediction scores of the Ohlson and Almant Modification were found to be the dominant prediction models that affected the stock prices of the coal companies in Indonesia. This indicates that the bankruptcy prediction model can be used as one of the approaches to measure the movement of stock prices and performance of the coal mining companies in Indonesia.DOI: 10.15408/etk.v17i1.6559

Analysis of purchasing decisions using online pre-order system at Shopee Fitriani; Yuli Asbar; Widyana Verawaty Siregar
Operations Management and Information System Studies Vol. 1 No. 1 (2021): Operations Management and Information System Studies
Publisher : Universitas Negeri Padang

This study aims to analyze the factors that influence the purchase decisions of the online pre order system at Shopee online shop in Lhokseumawe city. This study uses primary data obtained by distributing questionnaires to 100respondents selected using the purposive sampling method. The data analysis method used is multiple linear regression analysis with the help of SPSS 24. The results of the study partially show that price, convenience, trust, and reputation have a significant effect on purchase decisions with the pre-order system at the online Shopee in Lhokseumawe city. Simultaneously, price, convenience, trust, and reputation also have significant effect on the purchase decisions with the pre-order system on the Shopee online shop in Lhokseumawe city.

The Influence of internet addiction, advertising appeal, and price discounts on impulsive online buying behavior of fashion products Nova Mulyasari; Yuli Asbar; Widyana Verawaty Siregar
Operations Management and Information System Studies Vol. 1 No. 3 (2021): Operations Management and Information System Studies
Publisher : Universitas Negeri Padang

The study aims to analyze the influence (internet addiction, advertising appeal, and price discounts) on the impulsive buying behavior of online fashion products. This type of research is quantitative. Data collection is done by questionnaire method. The population in this study was all female consumers in North Aceh regency who had shopped for fashion products online. Samples are selected using the purposive sampling method. The number of samples in this study was 100 respondents. The results of the study obtained using multiple linear regression analysis techniques processed with the help of the SPSS version 18 computer program, namely Internet Addiction, Price Discount, partially significantly affect online impulsive buying behavior, Partial Ad Attractiveness has no significant effect on online impulsive buying behavior, and simultaneously the three independent variables (Internet Addiction, Internet Addiction, The attractiveness of advertising, and price discounts) significantly affects impulsive buying behavior online.

Calculation of Consumption and Expenditures for Electricity Energy Costs at Lido Graha Hotel Lhokseumawe City Based on Electrical Power Measurement Arnawan Hasibuan; Widyana Verawaty Siregar; Elvy Sahnur Nasution; Rohana Ismail
Bulletin of Computer Science and Electrical Engineering Vol. 1 No. 2 (2020): December 2020 - Bulletin of Computer Science and Electrical Engineering
Publisher : Indonesian Scientific Journal

Evaluation of energy utilization and identification become energy saving opportunities, as well as recommendations for increasing efficiency, on energy use and use of energy sources in the context of energy conservation This paper aims to describe the audit of electrical energy in the Lido Graha Lhokseumawe Hotel room, by taking samples in different room types and conducting an electrical energy audit on the use of installed lights and air conditioners. The method used in this study is data collection, interviews, observations and direct measurements on the use of lights and AC (Air Conditioning). The data analysis technique used is to determine the estimated value of electricity consumption and how much it will cost for electricity. From the results of calculations and analysis obtained total electricity consumption needs based on the type of room with various types of loads used 855.62 kWh/days with costs that must be spent per day is Rp. 1,190,574.96, 25,668.6 kWh/month with a monthly cost of Rp. 35,087,608.60. Whereas for a year electricity demand is 308,494.8 kWh/year with a cost of Rp. 421,051,305.24.

Prakiraan Kebutuhan Energi Listrik Kota Subulussalam Sampai Tahun 2020 Menggunakan Metode Analisis Regresi arnawan hasibuan; Widyana Verawaty Siregar
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Publisher : RELE (Rekayasa Elektrikal dan Energi) : Jurnal Teknik Elektro

Abstrak — Sejalan dengan perkembangan sosial ekonomi di kota Sebulussalam, maka kebutuhan akan energi listrik dari waktu ke waktu cendrung semakin meningkat. Hal ini semakin dirasakan dengan meningkatnya jumlah penduduk, pemukiman baru pertokoan, industri-industri, penerangan jalan, lampu hias di taman kota dan lain sebagainya. Seiring bertambahnya kebutuhan energi listrik setiap tahun sangat signifikan maka perlu membuat peramalan untuk mengatasi jumlah kebutuhan energi listrik yang semakin meningkat. Peramalan ini menggunakan metode regresi linier berganda. Berdasarkan analisisi yang di lakukan penelitian ini menyimpulkan bahwa jumlah kebutuhan energi listrik di PT PLN (PERSERO) Kota Sebulussalam untuk tahun 2016 sampai dengan 2020 mengalami peningkatan yang cukup signifikan yaitu pada kisaran 3.470.887,446 Kwh untuk tahun 2020.Kata kunci: peramalan, regresi, kebutuhan energi listrikAbstract — Between the socio-economic development at the city of Sebulussalam, for electricity from time tends to increase. This is increasingly felt with the increasing number of residents, new residential shops, industries, street lighting, decorative lights in city parks and so on. As the need for electricity increases every year is very significant, it is necessary to make a forecast to overcome the increasing number of electrical energy needs. This forecasting uses multiple linear regression methods. Based on the analysis carried out this study concluded that the amount of electrical energy demand in PT PLN (PERSERO) Sebulussalam City for 2016 up to 2020 has increased significantly, namely in the range of 3,470,887,446 Kwh for 2020.Keywords: forecasting, regression, electrical energy requirements

Pemanfaatan Energi Bayu Sebagai Sumber Energi Listrik Untuk Penerangan Pada Perahu Nelayan Arnawan Hasibuan; Widyana Verawaty Siregar; Adi Setiawan; Muhammad Daud
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Publisher : RELE (Rekayasa Elektrikal dan Energi) : Jurnal Teknik Elektro

Abstrak — Kota Lhokseumawe dan Aceh Utara merupakan salah satu daerah di Aceh yang memiliki banyak nelayan, terutama nelayan-nelayan kecil. Para nelayan kecil menggunakan perahu dalam kegiatannya menangkap ikan ke tengah lait. Banyak dari perahu tersebut tidak dilengkapi dengan sarana penerangan yang layak. Sampai sejauh ini hanya sumber pangan seperti ikan dan hewan laut lainnya saja yang dimanfaatkan oleh nelayan. Padahal laut memiliki sumber energi yang sangat berlimpah untuk membantu kerja para nelayan tersebut. Salah satu sumber energi tersebut yaitu tenaga angin di laut masih sangat besar potensinya untuk dimanfaatkan sebagai sumber energi listrik untuk penerangan perahu nelayan. Turbin angin menjadi pilihan untuk mengkonversi tenaga angin di laut menjadi sumber penerangan perahu nelayan karena mempunyai banyak keuntungan apabila diaplikasikan pada perahu kecil, antara lain mudah dibuat, mudah perawatan dan tidak perlu tiang yang tinggi. Generator yang digunakan merupakan modifikasi generator multi pole agar mampu bekerja pada putaran rendah sehingga mengurangi penggunaan transmisi yang berlebih. Sistem penyimpanan energinya dengan menggunakan batterai sehingga daya keluaran lebih stabil. Kontruksi sistem ini mudah dibuat, dirawat dan murah dan mampu menkonversi tenaga angin menjadi sumber energi listrik untuk penerangan perahu nelayan. Potensi pembangkitan energi listrik ini diharapkan mampu membantu nelayan untuk sistem penerangan perahu.Kata kunci : Nelayan, Turbin Savonius, Angin, Perahu, dan Energi ListrikAbstract — The cities of Lhokseumawe and Aceh Utara are areas in Aceh that have a lot of fishermen, especially small fishermen. Small fishermen use boats in their activities to catch fish in the middle of the lait. Many of the boats are not equipped with proper lighting. So far, fishermen have only used food sources such as fish and other marine animals. Even though the sea has a very abundant source of energy to help the fishermen work. One of these energy sources, namely wind power in the sea, still has a very large potential to be used as a source of electrical energy for lighting fishing boats. Wind turbines are an option for converting wind power at sea into a source of lighting for fishing boats because they have many advantages when applied to small boats, including easy construction, easy maintenance and no need for high masts. The generator used is a modification of the multi pole generator to be able to work at low rotation thereby reducing the use of excessive transmission. The energy storage system uses batteries so that the output power is more stable. The construction of this system is easy to manufacture, maintenance and inexpensive and is able to convert wind power into a source of electrical energy for lighting fishing boats. The potential for generating electrical energy is expected to be able to help fishermen for the boat lighting system.Keywords : Fisherman, Savonius Turbine, Wind, Boat and Electrical Energy

Studi Konsep Pengaruh Kualitas Pelayanan Terhadap Kepuasan Pelanggan di PT. PLN (Persero) Sebagai Perusahaan Penyedia Energi Listrik Monopoli Widyana Verawaty Siregar; Syarifah Muthia Putri
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Publisher : RELE (Rekayasa Elektrikal dan Energi) : Jurnal Teknik Elektro

Abstrak — Salah satu parameter yang digunakan pelaku bisnis untuk mengukur kinerjanya adalah melalui kualitas layanan. Dalam tulisan ini, dijelaskan konsep pengaruh kualitas pelayanan terhadap kepuasan pelanggan pada PT. PLN (Persero) yang menyediakan energi listrik kepada konsumen. Selain itu juga melihat faktor kualitas pelayanan yang turut berperan dalam menjelaskan kepuasan pelanggan pada perusahaan. Hasilnya menunjukkan bahwa tingkat kualitas pelayanan yang telah diberikan kepada pelanggan sangat mempengaruhi kepuasan pelanggan. Juga menunjukkan perlunya sosialisasi kepada karyawan perusahaan bahwa pelanggan perlu mendapat perhatian penuh sebagai klien atau pelanggan yang membeli produk dan jasa perusahaan.Kata kunci : kualitas pelayanan, kepuasan pelanggan, PT. PLN (Persero)Abstract — One of the parameters used by business people to measure their performance is through service quality. In this paper, the concept of the influence of service quality on customer satisfaction at PT. PLN (Persero) which provides electrical energy to consumers. In addition, it also looks at the service quality factors that play a role in explaining customer satisfaction at the company. The results show that the level of service quality that has been provided to customers greatly affects customer satisfaction. Also shows the need for outreach to company employees that customers need to get full attention as clients or customers who buy company products and services.Keywords : service quality, customer satisfaction, PT. PLN (Persero)

Pembangkit Listrik Tenaga Bayu sebagai Sumber Alternatif pada Mesjid Tengku Bullah Universitas Malikussaleh Raihan Putri; Arnawan Hasibuan; Ezwarsyah Ezwarsyah; Misbahul Jannah; Robi Kurniawan; Widyana Verawaty Siregar; M Sayuti Sayuti
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Publisher : RELE (Rekayasa Elektrikal dan Energi) : Jurnal Teknik Elektro

Abstrak Salah satu energi terbarukan yang berkembang pesat di dunia saat ini adalah energi angin. Energi angin merupakan energi terbarukan yang sangat fleksibel, ramah lingkungan dan memiliki efisiensi kerja yang baik. Sebagian besar kebutuhan listrik di Aceh masih sangat bergantung pada pasokan listrik (PLN) dari Sumatera Utara. Saat ada gangguan sedikit saja, akan terjadi pemadaman bergilir di beberapa wilayah Aceh. Oleh karenanya penulis akan membahas mengenai Perencanaan Pembangkit Listrik Tenaga Angin (Bayu) dan penentuan jenis tipe turbin angin yang sesuai. Lokasi penelitian ini dilakukan pada Mesjid Tengku Bullah, Universitas Malikussaleh. Metode yang digunakan dalam penelitian ini adalah metode studi kepustakaan dan metode eksperimen. Selan itu, software yang digunakan dalam penelitian ini adalah HOMER (Hybrid Optimization of Multiple Energy Resources). Hasil penelitian yang telah dilakukan dapat disimpulkan bahwa kecepatan angin yang diperoleh tergolong dalam kriteria jenis kecepatan angin kelas 4. Berdasarkan hasil pada HOMER potensi energi listrik yang dihasilkan oleh Wind Turbine dikawasan Mesjid Teungku Bullah Universitas Malikussaleh dengan memanfaatkan potensi energi angin yang didapat, menghasilkan energi listrik sebesar 45.714,82 KWh per tahunnya. Energi yang dihasilkan oleh Wind Turbine dapat memenuhi konsumsi energi pada Mesjid Teungku Bullah Universitas Malikussaleh melihat konsumsi energi pada Mesjid Teungku Bullah Universitas Malikussaleh hanya sebesar 13.541,30 KWh pertahun.Kata kunci : Energi Terbarukan, Energi Angin, Pembangkit Listrik Tenaga BayuAbstract One of the fastest growing renewable energies in the world today is wind energy. Wind energy is a renewable energy that is very flexible, environmentally friendly and has good work efficiency. Most of the electricity demand in Aceh is still very dependent on the electricity supply (PLN) from North Sumatra. When there is the slightest disturbance, there will be rotating blackouts in several areas of Aceh. Therefore, the author will discuss the Planning of Wind Power Plants (Bayu) and determining the appropriate types of wind turbines. The location of this research is the Tengku Bullah Mosque, Malikussaleh University. The method used in this research is the literature study method and the experimental method. In addition, the software used in this research is HOMER (Hybrid Optimization of Multiple Energy Resources). The results of the research that have been carried out can be concluded that the wind speed obtained belongs to the criteria for the type of wind speed class 4. Based on HOMER, the potential for electrical energy produced by the Wind Turbine in the area of the Teungku Bullah Mosque, Malikussaleh University, by utilizing the potential of wind energy obtained generates 45,714.82 KWh of electrical energy per year while energy consumption is only 13,541.30 KWh per year.Keywords : Renewable Energy, Wind Energy, Wind Power Generation

Pengaruh Kualitas Pelayanan Terhadap Kepuasan Mahasiswa (Studi Pada Perpustakaan Fakultas Ekonomi Dan Bisnis Unimal Widyana Verawaty Siregar; Sapna Biby; Murdani Murdani
Jurnal Visioner & Strategis Vol 9, No 1 (2020)
Publisher : Department of Management Faculty of Economics and Business, UNIVERSITAS MALIKUSSALEH

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

This study aims to examine the effect of physical evidence, reliability, responsiveness, assurance and empathy on consumer satisfaction (Studies in the Library of the Faculty of Economics and Business, University of Malikussaleh). The data used are primary data by using accidental sampling method. The sample used was 142 visitors to the Library of the Faculty of Economics and Business, University of Malikussaleh. The results of the study partially show that the variables of Physical Evidence, Responsiveness, Assurance and Empathy have a significant effect on the variable of Customer Satisfaction (Studies in the Library of the Faculty of Economics and Business, University of Malikussaleh). While the reliability variable does not have a significant affect on to consumer Satisfaction variable (Study at the Library of the Faculty of Economics and Business, University of Malikussaleh). Simultaneously the results of this study indicate that physical evidence, reliability, responsiveness, assurance and empathy have a significant effect on the dependent variable of consumer satisfaction (Studies in the Library of the Faculty of Economics and Business, University of Malikussaleh). Keywords: Physical Evidence, Reliability, Responsiveness, Guarantee of Empathy and Customer Satisfaction

Co-Authors Adi Setiawan Arif Rahman Arnawan Hasibuan Elvy Sahnur Nasution Ezwarsyah Ezwarsyah Fitriani Ghazali Syamni Ikhsan Fahri M Mursalin M Sayuti M. Shabri Abdul Majid Misbahul Jannah Muhammad Daud Murdani Murdani Nova Mulyasari Raihan Putri Razif Razif Razif Razif Rizqan Fachroji Robi Kurniawan Rohana Ismail Sapna Biby Syarifah Muthia Putri yuli asbar

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