Publication Search

The Solar Power Plant (PLTS) represents one of the pioneering electricity producers established at Manado State University. The aforementioned solar cell technology is a mechanism that effectively transforms solar energy into electrical energy. Indonesia, being situated on the equator and endowed with ample sun resources, stands to benefit significantly from the adoption of solar energy, thus enhancing its effectiveness. This study employs a quantitative methodology with a descriptive framework to examine the impact of light intensity on the voltage and current of solar panels. Based on the obtained measurements, it can be observed that the intensity of the sun is directly proportional to its brightness, assuming that there is no cloud cover. In ideal bright conditions, the maximum duration for the absorption of solar energy in a single day can extend up to 9 hours. On the contrary, the duration of optimal absorption during overcast or rainy weather conditions is limited to a maximum of five hours during a single day. The calculations were conducted using the average power generated on the initial day, which amounted to 30,299.76 kilowatt-hours per day, and on the subsequent day, which totaled 40,991.22 kilowatt-hours per day. There exists a positive correlation between the intensity of solar radiation and the performance of solar panels, whereby an increase in intensity leads to a corresponding increase in panel performance.

In agriculture with the hydroponic method of the DFT system (Deep Flow Technique), the circulation of plant nutrients must occur continuously to prevent decay in plants. Along with the many concerns due to the large electricity costs incurred to run the irrigation system for hydroponic plants, the authors hereby design a tool in the form of a submersible pump as a medium for regulating the flow of water in plants by utilizing a 50 WP PV module instead of a source of electrical energy from PLN. The method used in this research is the method of observation, literature study, design, and testing. The results of the 50 WP solar panel-based submersible pump trial show that a circuit connected to a battery at 1M Head tends to produce a stable water discharge, which is an average of 6.03 liters/minute compared to one that is not connected to a battery, which is only 5.28 liters/minute. Furthermore, the resulting water discharge affects the quality of the plants, especially in root length, number of leaves, leaf length, and leaf size. The test results are used as a reference for the comparison of expenditure costs between irrigation systems run using solar cells and those based on conventional (PLN).

This study pertains to the utilization of solar energy as a sustainable energy source, which exhibits considerable promise in Indonesia. The average daily solar radiation intensity in Indonesia is estimated to be approximately 4.8 kWh/m2. Nevertheless, the practical implementation of the Solar Power Plant (PLTS) presents several problems, including the need to improve the output power efficiency of the solar panels. This aspect offers the potential for significant enhancement. This study aimed to evaluate the performance of solar modules when equipped with reflectors, through a comparative analysis. In order to enhance the output power of the solar module, it is vital to augment the solar radiation received by this module. Based on the data acquired, it can be observed that the utilization of reflectors within the time frame of 11.00-12.00 WIT yields the maximum efficiency value.

Solar energy is a potential solution to meet the electricity needs of TNI AD posts and bases in border areas. However, conventional solar energy systems have limited efficiency because they can only absorb sunlight from one direction. The efficiency of solar energy systems can be improved by using a dual-axis tracking system equipped with a LDR sensor. The LDR sensor is used to detect the direction of sunlight. The change in the LDR sensor resistance due to the change in the intensity of light that hits it is then processed by a microcontroller to move the solar panel in the appropriate direction. Based on the results of testing, the dual-axis tracking system with an LDR sensor significantly increases the power generated compared to conventional solar energy systems. At the peak of performance during dynamic testing at 12:00 pm, the total power reached 2,196 W, while the static test reached a total power of 1,311 W. Therefore, the dual-axis tracking system with an LDR sensor can be a more optimal choice to improve the performance and efficiency of solar energy systems in generating electricity at TNI AD posts and bases in border areas.

Solar energy installations mathematically and visualization using the Solar Global Atlas Software simulation. The data obtained is that the highest energy occurred in the second test with the result of 365.7 Wh with the maximum power generated by solar panels of 93.28 W, battery charging energy of 321.5 Wh with a maximum battery charging power of 76.78 W. Sunhour that occurs is obtained 3.66 h with solar panel efficiency that occurs at 12.8%. The research methods used include quantitative research methods by taking data using measuring instruments using literature studies, simulations and experiments to then be processed using related formulas in the implementation of the research.

The Meteorology, Climatology and Geophysics Agency predicts a long dry season will occur in Subang Regency in 2023 with the potential for El Nino for the next one year. Subang's solar energy potential reaches 4.8 kWh/M2. Solar energy is used to irrigate rice fields in Binong. The energy produced by solar panels is converted to motion energy which is used to suck up water. In this study it was found that solar energy produced by solar panels can drive an electric motor with a load of 2.4 kW for 6 hours which is used to meet the water needs in the fields.