International Journal of Renewable Energy and Electrical Power Systems

Solar Power Electrical Vehicle Charging Stations with Smart Load Management

2025-11-14T05:36:28+00:00

The increasing adoption of Electric Vehicles (EVs) necessitates the development of sustainable and efficient charging infrastructure to support growing energy demands. This study presents the design and implementation of a solar-powered EV charging station integrated with a smart load management system. The proposed system harnesses renewable solar energy to reduce reliance on the conventional power grid and minimize carbon emissions. A real-time load management algorithm dynamically allocates power between multiple charging points based on solar generation, battery storage status, and EV charging priorities, optimizing energy utilization and preventing grid overloads. Experimental results from a prototype station demonstrate improved energy efficiency, reduced operational costs, and enhanced charging reliability under variable solar conditions. This research highlights the potential of combining renewable energy sources with intelligent control strategies to create eco-friendly and scalable EV charging solutions, contributing to the advancement of sustainable transportation infrastructure. The growing need for sustainable and clean energy in the transportation sector has encouraged the development of solar-powered Electric Vehicles (EVs). This project focuses on designing and implementing a solar-powered electrical vehicle integrated with a smart load management system to improve energy efficiency and reliability. The vehicle uses solar panels to capture solar energy, which is converted and stored in rechargeable batteries to drive the electric motor. The smart load management unit plays a key role in optimizing power distribution between critical and non-critical loads. It monitors battery voltage, solar input, and motor demand in real time, ensuring that essential components receive priority power while minimizing unnecessary consumption. This intelligent control strategy helps to extend battery life and increase the overall performance of the system. The combination of renewable energy and efficient power management reduces dependency on conventional grid charging and fossil fuels. The proposed model provides a cost-effective, eco-friendly, and energy-efficient solution for future transportation needs, promoting sustainable mobility and reducing greenhouse gas emissions. The project demonstrates that integrating smart technology with solar energy can significantly enhance the practicality and feasibility of electric vehicles in both urban and rural applications.

Waste to Wealth: Harnessing Kitchen Food Waste for Decentralized Biogas Production and Organic Fertilizer

2025-10-09T04:35:31+00:00

The rapid rise in food waste has become a critical global issue, with over 1.3 billion tons produced annually. Improper disposal of kitchen waste poses severe environmental and health challenges, including methane emissions, leachate contamination, unpleasant odors, and public health risks. However, kitchen waste is rich in organic material and nutrients, making it an ideal candidate for Anaerobic Digestion (AD). The AD process produces biogas, a renewable alternative to fossil fuels, and digestate, a nutrient-rich byproduct that can be utilized as organic fertilizer. Case studies demonstrate that Food Waste Disposers (FWDs) connected to Waste Water Treatment Plants (WWTPs) can reduce Greenhouse Gas (GHG) emissions by up to 35% compared to landfilling. This integrated model addresses waste management issues while generating renewable energy and producing sustainable fertilizers, thereby supporting the principles of a circular economy.

This study presents an integrated waste-to-wealth system that incorporates a kitchen waste grinder to reduce particle size before sending the slurry to anaerobic digesters. Research demonstrates that grinding improves hydrolysis efficiency, shortens retention times, and enhances the overall performance of AD systems. The approach effectively converts kitchen waste into valuable resources, mitigating environmental impacts and contributing to sustainable waste management.

Keeping the Power Clean: Harmonic Mitigation Strategies for High Solar PV Penetration in Distribution Networks

2025-11-07T08:18:12+00:00

The rapid growth of solar Photovoltaic (PV) integration in distribution networks is transforming modern power systems, but also raising significant concerns related to power quality. Among these challenges, harmonic distortion has emerged as a critical issue, caused by inverter-based generation and nonlinear interactions within the grid. Excessive harmonics can lead to equipment overheating, reduced efficiency, malfunctioning of sensitive devices, and overall grid instability. This study explores strategies for mitigating harmonics under high PV penetration, categorizing solutions into passive filters, active power filters (APFs), hybrid filter systems, and advanced smart inverter control. Additional engineering practices, such as load balancing, transformer phase-shifting, detuned capacitor banks, and network upgrades, are also reviewed. Furthermore, the importance of regulatory compliance with standards such as IEEE 519-2022 is emphasized to ensure uniform power quality across interconnected systems. By comparing these strategies in terms of cost, complexity, and effectiveness, the study highlights that a multi-layered approach, combining technological, regulatory, and engineering measures, offers the most effective pathway toward cleaner power and more resilient distribution networks in the era of renewable energy expansion.