International Journal of Power Electronics and Drive Systems (IJPEDS) Vol. 15, No. 4, December 2024, pp. 2591~2602 ISSN: 2088-8694, DOI: 10.11591/ijpeds.v15.i4.pp2591-2602  2591 Journal homepage: http://ijpeds.iaescore.com Design system and performance analysis of fish storage box by utilizing solar energy Rizal Justian Setiawan 1,2,3 , Khakam Ma’ruf 2,4 , Darmono 5 , Indra Dwi Suryanto 6 , Andi Tri Hermawan 7 1 Department of Industrial Engineering and Management, College of Engineering, Yuan Ze University, Taoyuan, Republic of China 2 Department of Mechanical Engineering Education, Faculty of Engineering, Yogyakarta State University, Yogyakarta, Indonesia 3 Department of Management, Faculty of Economics, Indonesia Open University, Jakarta, Indonesia 4 Department of Industrial Engineering, Faculty of Engineering, Gadjah Mada University, Yogyakarta, Indonesia 5 Department of Civil Engineering Education, Faculty of Engineering, Yogyakarta State University, Yogyakarta, Indonesia 6 Department of Electrical Engineering, Faculty of Engineering, Gadjah Mada University, Yogyakarta, Indonesia 7 Department of Automotive Engineering Education, Faculty of Engineering, Yogyakarta State University, Yogyakarta, Indonesia Article Info ABSTRACT Article history: Received Dec 2, 2023 Revised Jun 14, 2024 Accepted Jun 20, 2024 Indonesia is a maritime country and many people work as traditional fishermen. Traditional fishermen generally use thermos filled with wet ice, ice boxes, or ice blocks to maintain the freshness of fish. The temperature obtained is still insufficient to maintain the fish’s quality and freshness. Furthermore, some existing technologies are expensive and use fossil fuels. Researchers designed and manufactured a cool box that utilizes solar energy to store fish. The experimental research method was conducted by testing the performance of the cool box device at four different locations. The results showed that the solar panel produced an average of 2,527.2 W of energy in a day, which can power the cool box device for 10 hours. To maintain the fish’s freshness with the reference temperature of 0-5 °C, the device uses temperature control to prevent the fish from freezing, which damages its structure. The temperature control also helps the tool save energy, allowing it to last 170 minutes longer than without using the temperature control feature. Keywords: Cool box Fish Renewable energy Solar energy Solar photovoltaic This is an open access article under the CC BY-SA license. Corresponding Author: Rizal Justian Setiawan Department of Industrial Engineering and Management, College of Engineering, Yuan Ze University 135 Yuan-Tung Road, Zhongli District, Taoyuan City, Republic of China 32003 Email: rizaljustiansetiawan99@gmail.com 1. INTRODUCTION Fish is a food requirement that is a source of protein and nutrients that is widely consumed by the public [1]. Based on Food and Agriculture Organization (FAO) data, the growth in world fish consumption has currently reached 20.5 kg per capita [2]. One country that has large fisheries resources is the Republic of Indonesia which has a vast maritime area, its sea area reaches 5.4 million km 2 [3]. Indonesia has around 8,500 types of fish [4] and based on data from The Ministry of Maritime Affairs and Fisheries (KKP) in the Republic of Indonesia in 2020, they have reported that the country produced 23.16 million tons of fish, with around 8 million tons (33.26%) coming from fisheries that caught in the sea. The amount of fish caught has been increasing every year due to rising export demands and public consumption [5]. Indonesia's abundant marine wealth makes many residents work as fishermen, including traditional fishermen [6]. Traditional fishermen use simple fishing technology. Operational cruising capability is limited to the waters around coastal areas, this condition makes it impossible for them to have a refrigerator [7]. Many traditional fishermen employ the simple method to preserve the freshness of their caught fish. Usually, traditional fishermen implement cooling techniques by using ice boxes or ice cubes. This method can help