Peramalan dan Pengendalian Persediaan Material pada Industri Distribusi Listrik

Rizma, Maulivia (2023) Peramalan dan Pengendalian Persediaan Material pada Industri Distribusi Listrik. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Salah satu tujuan strategis perusahaan adalah customer focused, dimana perusahaan berupaya untuk memberikan kepuasan dan pelayanan terbaik kepada pelanggan. Kecepatan pelayanan seperti proses penyambungan baru/penambahan daya dan gangguan dapat terlaksana dengan baik apabila material yang dibutuhkan tersedia di gudang. Sehingga perlu untuk melakukan pengendalian persediaan material dengan baik. Saat ini proses pelayanan pelanggan yang terjadi di PT. PLN UP3 X sering mengalami kendala karena Material Distribusi Utama (MDU) yang dibutuhkan sering mengalami out of stock sehingga mengakibatkan penundaan pelayanan atau pengembalian pembayaran. Selain itu, terjadi penumpukan material slow moving dimana total nilai persediaannya memberikan hasil tertinggi dibandingkan unit lain yang berada di Jawa Timur. Untuk mengatasi permasalahan terkait belum optimalnya manajemen persediaan material tersebut maka perusahaan melakukan pengelompokkan material dengan klasifikasi ABC dan analisis ADI-CV. Berdasarkan pola permintaan material maka akan dilakukan peramalan dengan metode exponential smoothing untuk pola permintaan smooth demand. Sedangkan untuk pola permintaan erratic, lumpy, dan intermittent demand akan dilakukan peramalan dengan metode Croston dan Syntetos-Boylan Approximation (SBA). Setelah itu, melakukan pengelolaan persediaan material dengan menggunakan metode continuous review (s,S) dan metode periodic review (R,s,S). Hasil pengelolaan persediaan diperoleh bahwa metode continuous review (s,S) dapat memberikan hasil yang optimal yaitu terjadi penurunan biaya sebesar 4% dari kondisi eksisting serta dapat meningkatkan service level menjadi 92%.
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One of the company's strategic goals is customer focused, which means that the company strives to provide customers with satisfaction and the best service possible. The speed of services such as the process of new connections/addition of power and interruptions can be done properly if the required material is available in the warehouse. Therefore, it is necessary to control material inventory properly. Currently, the customer service process at PT. PLN UP3 X frequently encounters problems because the required materials are often out of stock, resulting in service delays or refunds. Furthermore, there was a buildup of slow-moving material where the total inventory value yielded the highest yield compared to other East Java units. To address issues with material inventory management that were not yet optimal, the company grouped materials using ABC classification and ADI-CV analysis. Based on the material demand pattern, forecasting was carried out using the exponential smoothing method for smooth demand patterns. Forecasting for erratic, lumpy, and intermittent demand patterns were done using the Croston and Syntetos-Boylan Approximation (SBA) methods. After that, material inventory management was carried out using the continuous review (s,S) method and the periodic review (R,s,S) method. The results of inventory management show that the continuous review (s,S) method can provide optimal results of a 4% cost reduction from the existing condition and can increase service levels to reach 92%.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Exponential Smoothing, Croston, SBA, Continuous Review (s,S), Periodic Review, (R,s,S)
Subjects:	H Social Sciences > HD Industries. Land use. Labor > HD55 Inventory control
Divisions:	Interdisciplinary School of Management and Technology (SIMT) > 61101-Master of Technology Management (MMT)
Depositing User:	Maulivia Rizma
Date Deposited:	11 Feb 2023 08:10
Last Modified:	11 Feb 2023 08:10
URI:	http://repository.its.ac.id/id/eprint/97050

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