Angle tilt is an important factor that affects the amount of solar radiation received on the surface of solar panels. Fixed-mounted solar panels cannot receive the maximum amount of solar radiation. How to get the maximum solar radiation by positioning the surface of the solar panel at a certain slope to be directly facing the sun. This study aims at  determining  the optimum slope angle of solar panels in the city of Meulaboh (4,152 LU, 96,131 BT). The method of calculating the total value of solar radiation on a sloping surface simulated with Pvsyst Software is used to determine the annual optimum tilt angle. NASA SSE solar radiation data from 1983 – 2005 were used to support simulations in this study. The results showed that the tilt angle that can produce the maximum output energy in the city of Meulaboh (4,152 LU, 96,131 BT, Johan Pahlawan) is at an angle of 5° with the orientation directly facing south.

After turning into a state university, Universitas Teuku Umar continues to improve a number of infrastructures including the addition of a number of buildings. Currently the only source of electricity used to run all facilities in the building only from PLN, so that in the face of obstacles such as blackouts, suspension of electricity supply, or other technical constraints will result in the cessation of all activities so that it has an impact on the decline in the performance of the Faculty of Engineering in general. Research on the application of solar panels installed on the roof of the building (rooftop) as Building Applied Photovoltaic (BAPV) was conducted. The purpose of the study is to find out the number of solar panels and other devices needed for the application of PLTS in the Faculty of Engineering Building. PVsyst V7.2 software It is used to obtain daily solar radiation values at the locations reviewed. The existing Total Energy (TE) value calculation method is used to determine the capacity of solar panels and other supporting equipment. Results show an existing TE value of 20,422 Wh/day or equivalent to 20,422 kWh/day. Based on te value the number of solar panels needed as much as 33 units of capacity 120 Wp, Solar Charge Controller (PWM) 12 V-250 A 1 unit, VRLA Gel Battery Brand VOS 12V - 150 Ah 41 units, Inverter Pure Sine Wave (PSW) Split Phase Inverter Charger Series power 1-6 KW 1 unit.

This paper uses a preventive maintenance approach in improving the performance reliability of critical boiler components at the Nagan Raya Steam Power Plant (PLTU Nagan Raya). PLTU currently has a strategic role in the electricity system in Indonesia, one of which is PLTU Nagan Raya which is located in Aceh. In its implementation, PLTU Nagan Raya often experiences interference in its production system. The boiler is one part that often experiences interference, where corrective maintenance is one of the causes of the interference. Evaluation and performance improvement in terms of reliability are needed to minimize future failures. The purpose of this research is to determine the preventive maintenance time based on the reliability value of critical boiler components to increase the reliability value in the future. Preventive maintenance is a preventive activity before a machine breakdown occurs. The reliability value will be calculated in advance before the implementation of preventive maintenance. The results of the implementation of preventive maintenance in an effort to increase the reliability of the nine critical components of the boiler obtained maintenance results ranging from 14 days to 47 days with a reliability value of 60%.

CV. Bate Mandiri merupakan industri yang bergerak dalam proses pembuatan paving block yang berada di Kabupaten Aceh Besar. Usaha produksi sejenis di kawasan tersebut menjadi ancaman dalam mempertahankan eksistensinya dan diperlukan langkah strategis dalam mempertahankan dan mengembangkan usaha agar bertahan dalam jangka panjang. Tujuan penelitian ini adalah untuk menentukan posisi dan strategi usaha produksi paving block pada CV. Bate Mandiri menggunakan SWOT (Strenghts, Weaknesses, Opportunities, Threats) dengan analisis SAP (Straegy Advantage Profile) dan ETOP (Environmental Threat Opportunity). Analisis SAP digunakan untuk mendapatkan gambaran posisi strategis perusahaan, dilihat dari sudut pandang persaingan dengan faktor-faktor internal yang meliputi kekuatan dan kelemahan. Sedangkan analisis ETOP mengidentifikasi faktor-faktor peluang dan ancaman perusahaan didasarkan pada hasil analisis lingkungan eksternal yang dilakukan terhadap perusahaan. Hasil penelitian yang diperoleh posisi pemasaran pada CV. Bate Mandiri berdasarkan analisis SAP berada pada posisi aman (Favourable), posisi ini industri CV. Bate Mandiri memiliki kekuatan tertentu yang tidak dimiliki oleh pesaing dan Posisi CV. Bate Mandiri berdasarkan analisis ETOP berada pada posisi usaha spekulatif. Adapun strategi yang dapat digunakan yaitu memungkingkan untuk dilakukanya penambahan investasi, di mana posisi usaha ini memiliki peluang untuk sukses yang tinggi tetapi resiko yang harus dihadapi juga tinggi sebanding dengan sukses yang dicapai.

As one of the livelihoods of the Indonesian people, the sea has many benefits, such as fish, marine plant cultivation, and others. Most Indonesian live in the coastal area and work as fishermen. Its existence and role are very important in coastal development, especially fisheries. This study aims to investigate logic tree analysis to solve defects in traditional shipbuilding. It is envisaged that such implementation shall improve the quality of ships produced. Traditional ships are currently experiencing a significant demand proportionally to the increase in the number of fishermen utilizing traditional ships. However, shipbuilders experienced many obstacles during the manufacturing process. Therefore, the quality of the ships produced was different from the ship owners' standards or demands. For solving this problem, initial identification processes should be conducted to determine any potential defects that may affect the quality of the ships. Defects that pose a high risk to the quality of the ship were resolved using a logic tree analysis to obtain recommendations for improvements. The result shows that four risks of damage have been identified that affect the quality of the traditional ships produced: the selection of the quality of raw materials, imperfect wooden joints, easily corroded steel bolts, and poor installation of additional equipment.