GRID CONNECTED HYBRID RENEWABLE ENERGY SYSTEM HAVING SOLAR, WIND, BATTERY STORAGE AND CONVENTIONAL ENERGY SYSTEM FOR INDIAN EDUCATIONAL BUILDING WITH POWER QUALITY ANALYSIS
Manish Srivastava, Sunil Kumar Goyal, Amit Saraswat
Department of Electrical engineering, Manipal University, Jaipur, India
Abstract: In recent years, the demand for clean and reliable electricity in educational buildings has grown quickly and help to run educational building having low COE value. Present study focuses on designing and analyzing a Grid-Connected Hybrid Renewable Energy System (HRES) for an educational institute in Jaipur (India). The HRES system includes solar panels, wind turbines, battery energy storage, and conventional electrical generator, all connected to the main electricity grid. The goal is to provide a continuous, cost-effective, and eco-friendly power supply with good power quality. The current research was done in two stages. First, HOMER software was used to analyze different combinations of energy sources. The best solution was selected based on overall cost, fuel savings, and environmental benefits which was LCOE (levelized cost of electricity). The results of the present study showed that the optimal hybrid system had a Net Present Cost (NPC) of ₹172 million, Initial Capital of ₹89.1 million, Operation & Maintenance cost of ₹6.39 million per year, and a Levelized Cost of Energy (LCOE) of ₹5.72/kWh. These values are significantly better than the base case system (only grid purchased electricity), which had higher costs in all categories. In the second stage, Python-based modeling and control techniques were used to check how the system performs under different weather and load conditions. Special attention was given to maintaining stable voltage and frequency, and to reducing harmonic distortion (THD) for the protection of sensitive classroom and lab equipment. The battery’s State of Charge (SOC) was managed using an adaptive control method to improve energy reliability. Current study shows that a hybrid system combining renewable sources with a grid connection can reduce both electricity bills and greenhouse gas emissions. It also improves the power quality and reliability for educational institutions, making it a strong solution for future energy needs in India and similar regions.
Keywords: HRES, Solar, Wind, Battery System, Power Quality, HOMER
VOLUME 10 ISSUE 01 2026: 293 – 308