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This research develops an automated temperature control system for water heaters, that is both efficient and stable, driven by the need for energy-saving heating solutions, particularly for marine applications. The main objective was to create an automatic system capable of maintaining water temperature within an optimal range while maximizing energy efficiency through the use of thermal storage materials. The methodology involved an on-off control system based on a microcontroller as the main controller, capable of processing temperature sensor data in real time. This system intelligently activates and deactivates the heater to keep the water temperature stable. Paraffin wax was used as a latent heat storage medium, playing a crucial role in gradually storing and releasing thermal energy to support temperature stability. An automatic water heater system based on the ESP32 microcontroller with an on-off control mechanism was successfully designed using paraffin wax combined with silica sand as a thermal storage medium. The addition of silica sand significantly enhanced heat conductivity and temperature stability. Test results showed a substantial reduction in energy consumption, with daily savings reaching Rp12,762.88, equivalent to 67% of total daily energy costs. Over a one-year period, the total savings amounted to Rp4,658,103.20, demonstrating that the paraffin wax–silica sand combination is highly effective in improving energy efficiency and reducing long-term operational costs.

This research aims to develop and evaluate the performance of a steam plant prototype designed as an alternative source of electrical energy to support the Vessel to Grid (V2G) concept. Utilization of backup energy on ships is becoming important as electricity demand increases and demands for a more sustainable electrical system. This system relies on ESP32 microcontroller technology as a control center that functions to monitor and control several key parameters, including steam pressure, combustion temperature, boiler water level, and the generated electrical voltage. The research method used is an experiment with a static and dynamic testing approach. Static testing is carried out to measure the performance of main components such as the boiler, turbine, and generator separately, while dynamic testing focuses on evaluating the overall system by involving the integration of sensors and supporting actuators. The test data is then analyzed quantitatively to determine the system's response to variations in steam pressure, temperature, and other operational conditions. The results show that the steam produced by the boiler is able to rotate the turbine, thereby driving the generator to produce electricity. The maximum voltage achieved is 25.7 volts at a steam pressure of 50 psi. The highest energy conversion efficiency was recorded at 4%, while the lowest efficiency was 0.9%. These findings demonstrate that, despite its relatively low efficiency, the prototype can function as an alternative energy source and emergency backup solution. Thus, this research provides an initial contribution to supporting the implementation of the V2G concept through the development of a small-scale steam plant-based energy conversion system.

Background: Nurses are the most dominant health workers in hospitals including inpatient installations. This dominance tends to have an impact on the main focus of the community including patients. When the nurse's performance is good, being able to cover all services in the hospital will be of good value in the eyes of the community and patients, making it a crucial point for nurses to work in accordance with the competencies, main tasks and functions and practice standards set by health care facilities. This study examines the relationship between nurse performance and patient satisfaction treated at the inpatient installation of Bhayangkara Hospital Jayapura. Method: This study is a type of non-experimental quantitative research with correlation studies. Data collection was carried out using questionnaires. The number of respondents was 98 people with the same number of nurses and patients, namely 49 people. The sampling technique used was incidental. Data were analyzed using spearmank rho. Result: Based on the results of the study, it was found that the age of 26-45 years, female, with a Diploma III education, and a length of work of more than 3 years. While the majority of patient respondents were aged 18-25 years, female, with the most education being high school, having a self-employed job, and a length of care of 1-3 days. The performance of nurses found to be categorized as good while the majority of patient satisfaction was very satisfied. The results of the spearman rho analysis obtained a correlation strength level of 0.924 with a p-value of 0.000. Conclusion: Nurse performance is related to patient satisfaction treated at the inpatient installation of Bhayangkara Hospital Jayapura. It is expected that the measurement of nurse performance with patient satisfaction will be carried out periodically, a maximum of once a year to evaluate nursing services.

This study discusses the optimization of the allocation of productive waqf funds using MATLAB through a case study on the Waqf Board of the Islamic University of Indonesia (UII) Yogyakarta. Productive waqf has an important role in supporting socio-economic empowerment, but its management often faces challenges in determining the efficient distribution of funds. The purpose of this research is to develop a mathematical model to optimize the allocation of waqf funds in various sectors such as education, health, micro enterprises, and social programs. The research method uses a quantitative approach with optimization techniques implemented in MATLAB to simulate various fund distribution scenarios. The results of the study show that the optimization model is able to provide a more effective distribution of waqf funds compared to the actual allocation pattern, thereby increasing efficiency and impact on community welfare. Thus, the use of MATLAB has been proven to help waqf institutions in formulating accurate data-based decisions and mathematical models. In addition, this study emphasizes that the application of modern computing technology can strengthen the role of waqf as an instrument of sustainable social development. The implications of this study show that the integration of mathematical modeling with modern computing tools can be an important strategy for Islamic philanthropic institutions in maximizing the potential of productive waqf, especially in Yogyakarta. This research also contributes to the development of Islamic economic literature, offers practical recommendations for waqf managers, and shows the application of MATLAB as a tool in economic decision-making. With this approach, productive waqf is expected to provide wider and sustainable benefits for the community, as well as be an inspiration for other waqf institutions in Indonesia to adopt a similar strategy.

This study aims to describe how stereotypes occur in cross-cultural communication between PMM and PNM students and to examine their impacts on students’ achievement and interaction. A descriptive qualitative approach was employed, with data collected through observation, interviews, and questionnaires to capture both behavioral and perceptual aspects of communication. The findings reveal several key points. First, initial interactions shaped expectations and assumptions about each other’s behavior and culture. Second, stereotypes often caused miscommunication, misunderstandings, and confusion in interpreting messages. Third, they influenced group dynamics, including cooperation, participation, and conflict resolution. Fourth, students’ perceptions of identity, both personal and cultural, played a role in shaping their interactions. Fifth, the study identified both positive and negative impacts. Positive effects included enhanced Javanese language skills, increased cultural awareness, strengthened group identity, and cognitive shortcuts that facilitated understanding of others. Negative effects involved communication gaps, misinterpretation, discrimination, cultural barriers, and language difficulties. Overall, the study highlights that stereotypes in cross-cultural communication are a double-edged sword: while they can provide quick cognitive frameworks for understanding others, they can also impede effective communication and collaboration. These findings emphasize the importance of cultural sensitivity, awareness, and reflective practices in multicultural student interactions to maximize learning and minimize conflicts.

This study aims to examine the influence of word of mouth on buying interest and its impact on the purchase decision of Muzan Net wi-fi services. This study uses three main variables, namely independent variables, bound variables, and intervening variables. The free variable is word of mouth, the bound variable is the purchase decision, while the intervening variable is the buying interest. The research sample consisted of 55 consumer respondents who knew and used the Muzan Net wi-fi service in Sanggrahan Village. Research data was obtained through questionnaires, observations, and interviews, with sampling techniques using the simple random sampling method. Data analysis is carried out through several stages, namely measurement or outer model, structural model or inner model, and hypothesis test. The results of the study show that word of mouth has a positive and significant effect on buying interest. Furthermore, word of mouth also has a positive but not insignificant effect directly on the purchase decision. Meanwhile, buying interest has been proven to have a positive and significant effect on purchase decisions. In addition, buying interest is able to mediate the relationship between word of mouth and purchase decisions, thereby strengthening the role of word of mouth in encouraging consumers to finally make a purchase decision. This research provides practical benefits for companies in maximizing word-of-mouth-based marketing strategies, as well as a reference for future research to develop similar studies with different objects, locations, and variables.

This study aims to examine and analyze how the implementation of Standard Operating Procedures (SOP) impacts employee performance improvement at Chatter Lounge Restaurant, Gumaya Tower Semarang. The background of this research stems from initial observations and interviews that revealed inconsistencies in SOP implementation, particularly in aspects of grooming and staff attitudes toward guests. A qualitative descriptive method with a case study approach was employed to gain a comprehensive understanding of the phenomenon. Data were collected through in-depth interviews with four key informants, direct observations of operational activities, and digital documentation related to SOP practices. The data analysis followed the interactive model of Miles and Huberman, which includes three main stages: data reduction, data display, and conclusion drawing. The findings indicate that SOP implementation positively contributes to enhancing employee discipline, time efficiency, and accuracy in following service procedures, leading to a more standardized service quality. Nevertheless, the implementation is not yet fully optimal as several employees lack a comprehensive understanding of SOP content. Inhibiting factors include limited advanced training opportunities, one-way briefings that restrict interactive communication, and the absence of a performance-based reward system to motivate staff. The study highlights that while SOPs serve as a crucial guideline to improve consistency and professionalism, their effectiveness depends heavily on continuous reinforcement and employee engagement. Therefore, it is recommended that the restaurant management strengthen SOP implementation through ongoing training, more participatory internal communication, and the establishment of performance-based reward mechanisms to maximize employee motivation, ensure service excellence, and ultimately enhance guest satisfaction.

This study aims to examine the effectiveness of attractants on the activity of the pollinating beetle Elaeidobius kamerunicus and its impact on the efficiency of pollination and palm oil (Elaeis guineensis) production at PT Menthobi Makmur Lestari, Lamandau Regency, Central Kalimantan. The study was conducted from May to July 2025 using a factorial randomized block design with two factors: topography (flat 0–8% and hilly 15–25%) and attractant doses (0, 1, 2, and 3 ml/ha) with three replications.The parameters observed included the frequency of E. kamerunicus visits to female flowers and the percentage of fruit set. The results showed that the topography factor, attractant dose, and their interaction significantly affected the number of E. kamerunicus visits and fruit set (p < 0.01). The combination of flat land with high attractant doses resulted in the highest visits (69.04 beetles/spike) and maximum fruit set (75.11%), while the hilly land without attractants showed the lowest results (34.60 beetles/spike; 61.22%). The application of attractants increased fruit set by more than 20% compared to the control, leading to an increase in bunch weight (BJR) of approximately 5.67 kg/bunch, additional production of about 1,151 kg FFB/ha per 1.5 months, and a potential income of Rp 3,683,200/ha, far exceeding the application cost of Rp 211,638/ha. These results indicate that the use of attractants is an effective and efficient agronomic strategy to improve palm oil productivity. Thus, attractants have proven to significantly enhance pollination efficiency and palm oil production, providing substantial economic benefits to farmers and supporting the sustainability of palm oil plantations. This approach offers an applicable and sustainable solution for agricultural practices, which can be applied to various locations with similar topographical conditions.  

Sappan wood (Caesalpinia sappan L.) is known to contain various bioactive compounds such as saponins, tannins, flavonoids, phenols, brazilin, and gallic acid. These compounds play an important role as antioxidants that can ward off free radicals and absorb UVA and UVB radiation that are harmful to the skin. Ultraviolet radiation is known to accelerate premature aging and cause tissue damage, so a topical formulation is needed that can provide protection while maintaining skin health. This study aims to determine the antioxidant activity and sunscreen ability of sappan wood extract in the form of lip balm with varying extract concentrations. Antioxidant activity was evaluated using the DPPH (1,1-Diphenyl-2-Picrylhydrazyl) method, while the Sun Protection Factor (SPF) value was determined by the Mansyur method using UV-Vis spectrophotometry. Sappan wood extract was formulated into four lip balm preparations, namely F0 (control without extract), F1 (5%), F2 (10%), and F3 (15%). Physical tests including homogeneity, pH, spreadability, adhesiveness, and organoleptic were conducted to ensure the quality of the preparation. The results showed that sappanwood extract had an IC50 value of 23.62 ppm which was categorized as very strong antioxidant activity. In the lip balm formulation, the IC50 values ​​obtained were F0 = 246.76 ppm (very weak), F1 = 92.68 ppm (strong), F2 = 78.03 ppm (strong), and F3 = 63.58 ppm (strong). The SPF test showed a protection value of F0 = 2.11 (minimum), F1 = 13.64 (maximum), F2 = 14.25 (maximum), and F3 = 18.28 (ultra). Thus, lip balm made from sappanwood extract has the potential as a cosmetic preparation that not only meets physical criteria, but also provides high antioxidant activity and effective sunscreen protection.

The increasing number of coffee shops in the modern era, especially in developing cities such as Cilegon, has triggered increasingly competitive market conditions. Dream Coffee, as a newly established coffee shop, faces challenges in introducing its brand and attracting consumer attention amid the dominance of more established coffee shops. This study aims to examine the marketing communication strategies implemented by Dream Coffee and to identify the factors that support and hinder the process of building brand awareness among its consumers.This research employs a qualitative approach, focusing on gaining an in-depth understanding of the social phenomena occurring at Dream Coffee through descriptive data collection and direct interaction. Data were collected using structured interviews, direct observation, and documentation involving the owner, internal consultant, employees, and customers or consumers.The findings indicate that Dream Coffee utilizes various elements of Integrated Marketing Communication (IMC), including advertising, personal selling, word-of-mouth marketing, sales promotion, and events and experiences. The main supporting factors are consistent and targeted communication, internal team solidarity, and an appealing visual brand identity. Meanwhile, challenges include limited physical facilities and a market reach that has not yet been maximized. Overall, it can be concluded that Dream Coffee successfully implements effective marketing communication strategies not only digitally but also in building brand awareness and creating emotional engagement with consumers.

Transmission line reconductoring is one of the strategic solutions to increase the capacity and efficiency of the power system without the need to build new infrastructure. This study aims to analyze and compare the performance of two types of conductors, namely ACSR Hawk and ACCC Amsterdam, used in the Suralaya-Cilegon 500 kV SUTET transmission line. The comparison is carried out by considering technical aspects including power losses, ampacity, horizontal and vertical sag values, and overall energy efficiency. The research methodology involved a literature study, collection of conductor technical data, calculation of resistance, current, and power losses, and simulation of sag values against temperature variations. In addition, economic analysis and field implementation aspects were also considered to assess the feasibility of using each conductor. The results show that Amsterdam's ACCC conductor has superior technical performance compared to Hawk's ACSR. ACCC is capable of delivering currents up to ±1300 A, compared to ACSR Hawk which is only ±800 A. The power loss value using ACCC is recorded at ±1.34 MW, lower than ACSR Hawk at ±1.79 MW. In addition, ACCC exhibits smaller sag values due to its lighter weight and higher tensile stress, making it more stable against temperature fluctuations. In terms of energy efficiency, the use of ACCC can save energy up to ±3942 MWh per year. By considering the technical advantages and long-term energy efficiency, this study recommends the use of Amsterdam ACCC as a reconductoring solution for high-voltage transmission lines, especially in systems that have high loads and require maximum reliability and efficiency.

E-learning has become a vital pillar in higher education, especially since the COVID-19 pandemic forced a sudden shift towards digital learning methods. This article examines the effectiveness of e-learning platforms through a comparative literature review (2020–2025), focusing on Moodle, Google Classroom, Microsoft Teams, Zoom, and CIDOS 4.0 as the local platform. The study evaluates aspects of student engagement, accessibility, assessment, and technological innovation. Findings reveal that although e-learning enhances flexibility, challenges remain in terms of the digital divide, system usability, and reliability of assessment. This review highlights that Moodle provides strong interactive and assessment features, while Google Classroom offers simplicity and accessibility but lacks advanced analytics. Microsoft Teams supports collaboration and integration with Office 365, yet requires stable internet. Zoom is highly effective for synchronous interaction but less suitable for task management. CIDOS 4.0 addresses Malaysia’s TVET context but continues to face issues with server stability and user interface design. Beyond platform-specific strengths and weaknesses, the analysis emphasizes that student engagement, fair access, and reliable evaluation methods are central to e-learning effectiveness. Hybrid approaches that combine face-to-face and online learning are identified as the most effective strategy within the Malaysian higher education context. The study concludes that institutions must not only choose appropriate platforms but also enhance digital literacy, invest in infrastructure, and explore innovations such as AI and gamification. These measures can maximize e-learning’s potential to improve teaching, learning quality, and the broader digital transformation of higher education.

This study investigates the relationship between leg muscle power and the effectiveness of volleyball smash performance among players aged 16–18 years at Jaya Volleyball Club (JVC) Lubuklinggau. Volleyball is a sport that requires a combination of physical strength, technical mastery, and tactical coordination, with the smash being one of the most decisive offensive techniques. The research was motivated by the observation that many junior athletes at JVC had not yet maximized their smash performance, particularly in terms of accuracy and power, which are strongly influenced by leg muscle explosiveness. The study employed a quantitative approach using purposive sampling with 35 participants selected from a population of 60 athletes. Leg muscle power was measured using the vertical jump test, while smash ability was assessed using a structured volleyball smash test. Data analysis was conducted with SPSS version 23, including descriptive statistics, normality tests using the Kolmogorov-Smirnov method, and Bivariate Correlation analysis (two-tailed). The results revealed a correlation coefficient (r) of 0.652, with a significance value of 0.000 (<0.05), indicating a statistically significant and strong relationship between leg muscle power and smash performance. These findings confirm that explosive power in the legs contributes greatly to the ability of young volleyball players to execute effective smashes. Athletes with higher vertical jump capacity tend to produce more accurate, powerful, and successful smashes, thereby increasing their contribution to team performance. The results emphasize the importance of integrating targeted leg muscle power training into volleyball coaching programs. Coaches and clubs are encouraged to design structured strength and plyometric training regimens to optimize players’ performance. Furthermore, this study provides valuable insights for athlete development programs and contributes to the broader understanding of physical conditioning in volleyball.

The purpose of this research is to analyze the effect of investment and firm growth on the improvement of firm value, with profitability serving as a mediating factor. This study employs a quantitative research design using secondary data obtained from the Indonesia Stock Exchange (IDX). The population includes infrastructure sector companies listed on the IDX from 2021 to 2023, and purposive sampling was applied to select 29 companies, yielding a total of 87 firm-year observations. Path analysis with SPSS software was used to test the hypotheses and examine both direct and indirect relationships among the variables. The findings reveal that investment has a significant positive impact on firm value, indicating that firms with higher levels of investment tend to enhance their market valuation. Similarly, firm growth contributes positively to firm value, suggesting that sustainable expansion fosters greater investor confidence. Moreover, profitability is proven to mediate the relationship between investment and firm value, showing that the benefits of investment are maximized when they lead to improved profitability. Profitability also significantly mediates the relationship between firm growth and firm value, underscoring its role as a key driver in translating growth strategies into shareholder value. These results highlight the importance of profitability as a strategic element in strengthening firm value. Practically, the study suggests that managers should prioritize profitable investments and sustainable growth strategies to maximize firm value, while investors may consider profitability as a central indicator when evaluating firm performance.

The benefits of free health checks in the community are to prevent infectious diseases and further illnesses. Health checks are an effort to detect abnormalities in the body. Health checks should be carried out routinely with the aim of preventing and treating them as quickly as possible. Early detection of disease is a form of education and free health check activities so that the community has awareness to carry out regular health checks as part of promotive and preventive efforts. The main goal of this service is to detect possible diseases and reduce the risk of the disease or treat it more effectively. This service method includes providing health education through the distribution of brochures related to educational materials, accompanied by the implementation of free health checks that involve meetings with Posyandu cadres and the local village head to initiate this service activity. There were 46 participants who took part in the free health check activities. The purpose of this activity was also to help participants better understand the importance of maintaining good health. To help participants better understand the importance of regular health checks to prevent negative impacts in the future, the results of the health checks are used as a guide. On July 30, 2025, the Sukamanah Village community held a free health check socialization program with the aim of increasing public awareness and knowledge about health. The program uses Participatory Action Research (PAR) as a method, benefiting Baros students, the general public, and the community. Outreach efforts have demonstrated that this method has successfully increased public awareness and understanding of health issues. This highlights the need for a more comprehensive health intervention model and research on the program’s long-term impact to maximize positive outcomes for public health.

The Emergency Department (ER) serves as a critical unit in hospitals with the primary objective of providing fast, precise, and integrated health services aimed at preventing disability and death. According to national standards, the maximum response time for ER services is 5 minutes. However, increasing patient volume combined with limited capacity and resources often hinders compliance with this standard, potentially affecting the quality of service and patient satisfaction. This study aimed to determine the relationship between response time and patient satisfaction in the ER of QIM Batang Hospital. The research employed an observational method with a correlational design and a cross-sectional approach. Data were collected using a stopwatch to measure response time and a structured questionnaire to assess satisfaction. A total of 100 patients who visited the ER were included as respondents through accidental sampling. Data analysis using the Chi-Square test revealed a significance value of ρ = 0.000, while the correlation test showed a coefficient value of 0.639, indicating a statistically significant relationship with a strong correlation between response time and patient satisfaction. These findings suggest that shorter and timely response times are closely associated with higher levels of patient satisfaction. In conclusion, adherence to response time standards and continuous improvement in the five key satisfaction indicators are crucial strategies to enhance the quality of ER services.

The results of this study indicate that DT Peduli Jambi has not yet fully optimized the management of productive zakat, despite having a structured management system in place. Based on data analysis, several key factors were identified as obstacles to optimization. First, there is a lack of public trust in the institution, as reflected in the absence of significant growth in zakat collection over the past three years. This condition highlights the need for more effective communication and transparency strategies. Second, administrative challenges remain, such as a record-keeping system that is not yet fully integrated digitally and limited human resources with expertise in managing productive zakat. Third, resistance to change among beneficiaries persists, with approximately 30% refusing to adopt modern business management methods offered by the program. Fourth, there is a high dependency on assistance, with 40% of beneficiaries still heavily reliant on institutional mentoring. Fifth, participation in training programs remains low, with an average attendance rate of only 65%. Nevertheless, overall the program is categorized as “fairly successful” with an achievement score of 70 out of 100. This indicates that productive zakat holds great potential to promote economic empowerment of the community but has not yet been maximized due to structural and cultural barriers. Therefore, improvements are needed in transparency, capacity building of human resources, as well as persuasive and participatory approaches for beneficiaries, so that the goal of economic empowerment through productive zakat can be more effectively realized.

Sweet corn (Zea mays L. saccharata) is a high-value horticultural crop whose productivity is closely linked to effective nutrient management, particularly the balanced application of macronutrients—nitrogen (N), phosphorus (P), and potassium (K). This study evaluates the agronomic and economic impacts of applying NPK compound fertilizer at varying doses (0.5×, 0.75×, 1.0×, 1.25×, and 1.5× the recommended rate) on sweet corn growth and yield performance. Field experiments demonstrated that NPK application significantly enhanced vegetative growth parameters, including plant height, leaf number, and stem diameter, with improvements ranging from 15.8% to 37.3% over the unfertilized control. Yield components such as ear length, husked ear weight, and dehusked ear weight also showed marked increases, resulting in higher total yields per plot and per hectare. Among the treatments, the 1.25× dose achieved the highest relative agronomic effectiveness (RAE) at 147%, indicating superior nutrient utilization and biomass conversion. However, the 1.0× dose yielded the most favorable economic outcome, generating a net profit of Rp. 10,780,200 and an R/C ratio of 1.47, suggesting optimal cost-efficiency. These findings underscore the dual benefits of NPK compound fertilizer in sweet corn cultivation, highlighting that precise dosage not only maximizes agronomic performance but also enhances economic viability. The study recommends adopting the 1.0× dose for balanced productivity and profitability, while the 1.25× dose may be considered in contexts prioritizing yield maximization.

Modern Islamic boarding schools not only focus on religious education, but are also required to improve the academic quality of students, including in mathematics subjects which are often challenging due to differences in students' learning styles, motivations, and abilities. This study aims to design and implement a Decision Support Sistem (DSS) based on the VIKOR method to analyze students' mathematical understanding and provide recommendations for more adaptive learning strategies. The study uses a descriptive quantitative approach with data obtained through documentation of students' grades, as well as interviews with mathematics teachers. The VIKOR method is used to evaluate students' understanding based on five main criteria, namely exam scores, report card scores, attendance, attitudes and behavior, and skills, through a process of normalization, weighting, calculation of S, R, and Q scores, and ranking students. The results show that there are five students with the lowest level of mathematical understanding, namely A11, A4, A17, A1, and A12, who have the lowest VIKOR index scores. This low level of understanding is influenced by factors such as learning attitudes, attendance, report card scores, and skills, so they require further attention and guidance from teachers. The application of the VIKOR method in SPK has proven effective in optimizing the analysis of students' mathematics achievements and providing recommendations for more targeted personal learning strategies, thereby helping to improve the quality of education and maximize students' academic potential.

As an archipelagic country, Indonesia has significant potential for the utilization of renewable energy, particularly wind energy in maritime areas with low wind speeds (3–6 m/s). This study aims to design and test a vertical Savonius wind turbine system equipped with a Perturb and Observe (P&O) Maximum Power Point Tracking (MPPT) algorithm as a power source for shipboard water heating systems. The research method applied is Research and Development (R&D), integrating several components such as a DC generator, full-wave bridge rectifier, INA219 current sensor, anemometer cup sensor, ESP32 microcontroller, and a monitoring interface utilizing Google Spreadsheet and a 20x4 LCD. The system was tested under two operating conditions: without MPPT and with MPPT. The experimental results show that the application of the MPPT algorithm successfully increased power output by up to 272.64% while maintaining voltage stability despite varying wind speeds. Nevertheless, the average output power of 2.605 W remained insufficient to meet water heating requirements within a short time. For example, charging a 12V 50Ah battery would require approximately 9.6 consecutive days of operation, highlighting the system’s limitations in high-demand scenarios. Despite these constraints, the findings demonstrate that the vertical Savonius wind turbine integrated with MPPT has strong potential as a clean and environmentally friendly alternative energy solution for maritime applications, particularly for small-scale onboard electrical loads. This study contributes to renewable energy utilization in the shipping sector and provides a foundation for further technological development and optimization.