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  Utilization of new renewable energy is a solution to meet the increasing electricity demand, one of which is solar power generation technology. Solar panels are a renewable power generator that is environmentally friendly. The relatively low and unstable output voltage of PV is affected by solar irradiation, which becomes a constraint. Therefore, by utilizing a boost converter, the solar panel system is able to work 25% more optimally compared to without using a boost converter. The performance of solar panels when using a boost converter is around 83.3% and without using it, the performance is only about 58.3%. The average output power when using the boost converter is 1,521 W, whereas without using the boost converter, the average output power is 1,172 W. This indicates that the output power is more stable when using the boost converter compared to not using it. This research focuses on a boost converter with PID control as a support, optimizer, and voltage stabilizer where the output power on the solar panel is expected to be more optimal and the output from the solar panel is more stable with more optimal results in various conditions. In this study, 12 solar panels of 125 WP with a capacity of 1.5 KW are used in series-parallel to obtain the required power. If the output from the solar panel is insufficient due to weather conditions, the voltage will be increased by the boost converter towards the inverter so that the voltage remains stable into the inverter with the boost converter. This boost converter uses PID control to keep the output voltage stable.  

The rapid advancement of technology has led to an increasing demand for electrical energy. One of the efforts to meet this demand is the development of micro-capacity power generation systems utilizing heat energy. Heat energy can be harnessed using thermoelectric elements. This study aims to design and develop a portable power generation system that utilizes solar heat as an energy source. The prototype uses six TEC 1-12706 thermoelectric modules to generate electricity designed specifically to recharge devices such as phones, power banks, and flashlights. Solar heat is concentrated on the thermoelectric modules using Fresnel lenses, while heatsinks are employed for cooling. The thermoelectric modules are connected in series to produce sufficient voltage, which is then boosted by a boost converter. The generated electrical energy is stored in a battery to ensure voltage stability despite temperature fluctuations. This device can also operate at night due to the energy stored in the battery. Test results show that the average output voltage without load ranges from 9.49V to 9.56V, with an average temperature of 45.2°C at the thermoelectric modules. In load tests, the device successfully charged a Pixel 5 phone (5000 mAh battery) from 4% to 70% in 95 minutes. These results demonstrate the potential of this system as a reliable and environmentally friendly portable energy solution.

Indonesia needs an industrial structure that can grow sustainably, has high local potential, is resistant to global economic turmoil, and has a strong and synergistic relationship with other economic sectors and industrial subsectors. As a base for job creation, a producer of added value to regulate the domestic market, a generator of tax revenue and foreign exchange, and a driver of sustainable growth, the industrial sector plays an important role in the Indonesian economy. To achieve this, support from the government is needed through the provision of legal facilities in the form of a policy foundation that can encourage the creation of quality industrial development. the legal basis can be a reference and benchmark for industry players to be able to carry out their industrial processes and activities in line with national goals. Because the industrial sector is one of the important sectors in supporting the national economy. For this reason, it is necessary to have synergy between the government as a facility provider in the form of rules or policy bases that regulate industrial activities, and industry players as executors of policies issued by the government so that harmony can be created that can support sustainable industrial development in Indonesia.

Wind Turbine Blades are one of the renewable energy sources that are the main solution to reduce excessive use of conventional fuels. Wind Turbine Blades absorb kinetic energy into mechanical energy which is then converted into electrical energy by the generator. This study uses the National Advisory Committee for Aeronautics (NACA) 1.2 horizontal axis wind turbine blade design with a taper type (having a wide base and a small tip). The initial wind turbine blade data was obtained rotating at a wind speed of 3.5 m/s with a voltage of 5.1 Volts. This blade design was carried out using maximum wind speed data of 9.5 m/s and minimum wind speed data of 3.6 m/s, then current and voltage data were obtained. The results of this study confirm that the design of this wind turbine blade affects the efficiency of converting wind energy into electricity. This taper type wind turbine blade is designed to produce optimal performance in a certain wind speed range.

In ship operations, the existence of a reliable emergency generator system is a critical factor to ensure continuity of electricity supply in emergency situations. Damage to the generator engine can cause significant disruption and even safety risks. To overcome this problem, a prototype monitoring, protection and rotation control system for emergency generator machines was developed using LoRa (Long Range) technology. This system is designed to monitor critical engine parameters, including speed, temperature and other operational conditions in real-time. Data collected from sensors is sent over a LoRa network that has wide coverage and low power consumption, enabling remote and continuous monitoring of Blynk's Internet of Think (IoT). This system is equipped with a protection algorithm that can detect anomalies and automatically activate corrective action or provide early warning to engineers and electricians. By implementing this prototype, it is hoped that it can reduce the risk of damage to the emergency generator engine and increase the reliability of the ship's electrical system, thereby supporting safer and more efficient operations.

The need for electrical energy is increasing, especially in rural areas, so building an environmentally friendly energy power plant such as a micro hydro generator can be used to produce electrical energy. This PLTMH planning aims to help the community produce environmentally friendly electrical energy and overcome frequent power outages. The research discusses determining the type of turbine, water discharge, turbine power and generator power at (PLTMH). The water discharge (Q) value of 2.67 m3/sec is the water discharge during the rainy season. From the calculation results, it can generate 25.65 kW of electrical energy, the type of turbine used is an open flume propeller type turbine, the planning of a micro-hydro power plant with a turbine power capacity of 60 kW and a generator of 50 kW greatly influences the power that will be produced by the turbine, which This means that the greater the water discharge, the greater the power generated by the turbine, conversely, if the water discharge is small, the power produced by the turbine is relatively small.    

A simple thermal waste generator is a promising solution for managing waste and generating electricity. This study aims to design and develop the tool. Through waste composition analysis, thermal design planning, prototype construction, and tool performance testing, we succeeded in creating an effective prototype. In performance testing, this tool is able to generate enough electrical power to meet daily energy needs on a small scale. Thus, this simple thermal waste power generator shows potential as an effective and environmentally friendly solution. Nevertheless, further research is needed to improve the efficiency and scalability of the tool, as well as to optimize the management of the residue from burning waste.

Capacitor bank is an arrangement of capacitors in series or parallel that can store energy temporarily and provide limited energy according to its capacity. Basically, a capacitor is composed of two parallel pieces called electrodes separated by a room called a dielectric which when given a voltage will store energy. The purpose of this study is to determine the effect of road slope and distance on charging in capacitor banks. In this study used a 2.7 V 500F capacitor and used a generator that has a specification of 300 watts. In this study using a quantitative experimental method that aims to determine the effect of road slope variations of 20⁰ and 25 ⁰ and with distances of 100m, 300m, 500m, 700m, and 900m. Testing is done by measuring the voltage on the capacitor bank using a multitester and indicator by utilizing a data logger and the percentage of voltage capacity on the capacitor bank. Furthermore, the data will be processed in the table using minitab. In the research results, it was concluded that the longer the distance traveled, the more the charging voltage value on the capacitor bank increased. For the effect of road slope on the voltage value on charging capacitor banks does not have a significant effect and for the effect of the interaction between road slope and distance has no effect on the voltage value.     

To fulfil the needs of electricity, UNTAG Surabaya Building uses electrical energy derived from PLN. But, the provision of electrical energy from PLN unable to constantly supply electrical energy without interruption. So, to overcome it, it’s obligatory to have an electrical energy back-up system in the form of a Genset so electrical energy for building needs is preserved. The Genset works automatically, so when PLN's electrical energy goes out, the generator will immediately work. Conversely, if PLN's electrical energy back to normal, the generator will stop working. Because the electrical energy back-up system at UNTAG Surabaya has been working for really long, it’s obligatory to evaluate also re-analyze the generator back-up system. The analysis is carried out by performing calculations assisted by the ETAP simulation program. For generator efficiency, it is still quite good, which is only 68.25%., because the generator only supplies loads that are an urgent priority. From the simulation results, the load must be provide by the generator is 273.04kW/341.3kVA and the generator capacity used is 400kW/500kVA. In that case, the performance of the genset is still within the limits of its capabilities.

Abstract: Renewable Energi have been goverment concern in Indonesia since 2014. HHO generator is one of some machine to generate hydrogen fuel using electrolysis process. In this research, the discussion will focus on the comparison between theoretical predictions and experimental results, about the causes of precipitation and corrosion of electrodes made of stainless steel produced from HHO generators, especially when using a mixture of KOH and NaCl electrolytes. The results, show the precipitate produced by the KOH solution is less compared to the NaCl solution. Meanwhile, the chlorine (Cl⁻) content of NaCl which is initially corrosive is not always present because it is formed into Cl₂ in the form of a gas, so the subsequent precipitation and corrosiveness depend on the element hydroxide (OH⁻) from H₂O dissociation.

Wind energy is a renewable energy that has the potential to be developed as an electricity generator. Indonesia has the potential for wind energy throughout the year but the wind speed is still classified as low wind speed. Development of a small scale Darrieus wind turbine that can operate at low wind speeds. In this research, variations in the number of blades 2, 3 and 4 are the focus to improve the performance of the Darrieus wind turbine. Testing at a wind speed of 3.4 m/s, the turbine with 2 blades had the highest rotation value of 128 Rpm, 4 blades had a rotation value of 98.6 and the lowest rotation result was 3 blades with a rotation value of 76.5 Rpm.

The condition of the ship's generator coolant is always monitored because it affects the performance of the ship's engine. Maintaining the engine coolant temperature is very important to avoid damage that occurs because the engine coolant is too hot on the engine components. With the internet of things, a technological concept has the ability to connect and facilitate the communication process between machines, devices, sensors and humans via the internet network. The aim of this research is none other than to monitor and automatically fill the water level of coolant radiators on generator engines on ships using an IoT system. This research uses a prototyping method system. After designing the tool, testing the tool, monitoring system and automatic filling of the water coolant radiator on the generator engine, the average error rate in the ultrasonic sensor readings when the first test was carried out was 3.02%, the second error was 2.57%, and the third error was 3.63%. Meanwhile, the coolant water discharge data is known to be 3 seconds to 10 seconds with a discharge of 60.7 mL/s. Where this data is monitored on the Blynk 64 mL/s application with an error rate of 5.43%. Therefore, the monitoring and charging system for this water coolant radiator using the IoT system can work well.

Fresh water is a basic need of the ship's crew in supporting the creation of smooth ship operating activities, therefore it is also necessary to have an auxiliary aircraft that can produce its own fresh water on board to reduce ship operating costs, which is called the Fresh Water Generator (FWG).  FWG is an auxiliary aircraft that can convert seawater into fresh water by evaporation and condensation processes. Therefore, it is necessary to have a tool to monitor the performance of the fresh water generator. The purpose of this research is none other than to monitor temperature conditions, water TDS, and conditions on the input and output streams of the fresh water generator evaporator filter to be more optimal and efficient and to determine the reliability of the fresh water generator performance equipment system using a long distance in order to create better and higher quality fresh water production on board. This research uses a prototyping method system. After designing and testing the tool monitoring system for the performance of fresh water generators using Arduino mega 2560 based on LoRa Ra-02, this system is one of the new technologies that can monitor the performance of fresh water generators to be more efficient and reliable. Then the readings of all sensors can work properly with an average percentage error on the Max 6675 temperature sensor of 0.58%, pressure transmiter sensor 1 of 2.04%, pressure transmiter sensor 2 of 2.04%, and TDS  sensor of 1,70% and the distance to communication between the receiver and transceiver reaches a range of 200 meters without obstacles and 97 meters through obstacles around.

Generator merupakan alat yang digunakan untuk mengubah energi gerak mekanik menjadi energi listrik dengan frekuensi putaran rotor sama dengan frekuensi tegangan yang dibangkitkan. Generator menggunakan prinsip elektromagnetik dalam pengoperasian energinya. Permasalahan yang sering muncul pada generator adalah penggunaan beban yang berlebihan sehingga menimbulkan perlambatan pada putaran rotor. Ketika kebutuhan beban meningkat dan tidak dapat dipenuhi oleh generator maka perlu dilakukan pelepasan beban pada system. Hal ini dimaksudkan untuk menstabilkan frekuensi serta keseimbangan antara daya generator dan beban. Pada penelitian ini telah diketahui bahwa pembebanan sangat berpengaruh terhadap frekuensi generator. Berdasarkan hasil pengukuran beban diketahui bahwa beban sebesar 350 kW, 400 kW dan 440 kW menyebabkan terjadinya penurunan frekuensi menjadi 49,8 Hz, 49,2 Hz dan 49 Hz.

Electricity is a vital aspect of modern infrastructure that supports various human activities. Therefore, the increasing need for electrical energy requires good planning to ensure the availability of electrical energy in the future. The transmission system, especially the Medium Voltage Cable Line (MVCL), plays an important role in distributing electrical energy from generators to consumers. However, MVCL construction involves high-risk work, so it requires special attention to occupational health and safety (OHS). This research uses the HIRARC (Hazard Identification, Risk Assessment, and Risk Control) method to identify and control risks in MVCL construction projects. It is hoped that the results of this research can provide recommendations for improving occupational safety and health as well as efficiency in future MVCL construction projects.

The simulation in this research investigates the possibility of using the walls of the rectorate building on the Bina Bangsa campus to install a wall area solar energy system. The building walls are simulated, becoming a representation of the walls of other buildings. PLTS electricity calculations use an interconnected Solar Power Plant [PLTS] system. Research shows that the building has a wall area of 10,353 m2 which can be used to install solar panels. The total electrical power produced in the area is 2030 kWp or 2.03 MWp. The power is divided into four, namely 630 kWp east of the roof, 535 kWp northwest, 668 kWp southwest and 553 kWp southeast.  

The alpha generation is the children that the millenial generation has left behind. This article was written by Mark Mc Crindle and published in the Business Insider magazine (Christina Sterbenz, 2015). The Alpha Generation (2011–2025) is the most advanced generation in terms of digital technology and the least advanced generation in comparison to the previous generation. Every day, almost 2.5 million children of the Alpha Generation are born into the world. The generation most familiar with the internet over the long term is Gen A. Mc Crindler also asserts that the Alpha generation is not averse to technology, somewhat socially adept, somewhat creative, and somewhat independent. Alpha generators require quick and somewhat chaotic processes. By enticing them with a technology, they become socially alienated. This article aims to understand the challenges faced by the Alpha Generation in the Industrial Revolution. For many people, literacy is a familiar language. Literasi is a concept with a complex, dynamic, and ever-changing definition that is defined by several methods with extreme caution. According Keywords: Literacy, Technology, Development, and Generation Alpha. to an online Merriam-Webster dictionary, the words "literature" and "letter" come from the Latin and English languages, respectively. Literasi is quality, or the ability to read and write with huruf/aksara that is included in the text. Technology is described as a concept that has to do with the type of application and knowledge about how it might improve human ability to identify and modify objects that are around. At this point in time, technological advancement is experiencing relatively slow advancement. The idea of technological advancement is to advance technology from one era to the next, making it more advanced or better. The ability of the Alpha generation to communicate (read, write, study, and sketch) has somewhat declined as a result of the rapid advancement of technology. Many Alpha children nowadays are highly dependent on their gadgets (games, YouTube videos, and other apps). However, due to technological developments, alpha generation children are lagging behind in literature, which is why they are interested in reading at an age when they should be able to read and understand the content of what they read.  

Obtaining high-quality, diverse, accurate datasets for sentiment analysis has always been a significant challenge. Traditional approaches include annotators, which may introduce bias to datasets and are also time-consuming and expensive. These types of datasets may also not represent the variety needed to train robust and generalizable sentiment analysis models. This study introduces a novel combination of techniques to approach the problem with a novel solution. The proposed system, SentiGEN includes the use of a transformer, T5, fine-tuned and optimized using an evolutionary algorithm to generate high-quality, diverse, accurate data for sentiment analysis. The generated data is validated using XLNet to ensure high sentiment accuracy. This combination of technologies has proven successful based on the results derived from evaluating multiple models. From complex transformers such as BERT to more straightforward approaches like KNN, those trained using synthetic data demonstrated superior performance compared to their counterparts trained on real data. This enhancement in predictive accuracy was observed when evaluated on benchmark datasets such as SST-2 and Yelp. SentiGEN can generate high-quality, diverse, accurate, realistic data for sentiment analysis and successfully increased the performance of models trained on synthetic data compared to the same model trained on real data.

Keberadaan kompresor di atas kapal sangat penting karena sebagai salah satu pesawat bantu penunjang pengoperasian kapal. Kompresor adalah merupakan salah satu komponen systim udara kerja di atas kapal dan mempunyai fungsi yaitu memproduksi udara bertekanan yang di gunakan sebagai penggerak utama mesin induk dan generator, kompresor sebagai pemasok udara kebotol angin di atas kapal sehingga sangat perlu di perhatikan perawatan dan perbaikannya untuk meningkatkan produksi udara, namun pada umumnya sering terjadi kerusakan pada bagian-bagian dari kompresor yang mana hal ini mempengaruhi produksi udara bertekanan sehingga dapat menghambat kelancara pengoperasian kapal.

PT XYZ is a company engaged in the supply of materials, suppliers, and services, especially in the field of electrical equipment, such as generators, mechanical devices, electrical devices, cables, electricity meters, and so on. The company has a total of 26 employees, all of whom are permanent employees. This company has assessed employee performance every month, but it is done using narratives so it is still subjective and there is no ranking. This is certainly very difficult for HR staff in determining the best employees every month. The purpose of this Employee Performance Assessment Decision Support System design is to improve accuracy and efficiency      in calculating employee performance to determine the best employees. In this research, the system development method used is the Rational Unified Process (RUP). This system development also uses two main approaches, which are low- code approach (OutSystems platform) and conventional approach (Laravel framework). From the development using the RUP method, it can develop a    Decision Support System for Employee Performance Assessment for PT XYZ.