Techno-Economic Assessment of a Grid Connected Hybrid Energy System for Electric Vehicle Charging Applications in Bursa/Yıldırım

In this study, the design and analysis of a hybrid energy system were carried out to meet the electric vehicle energy needs of a residence located in the Yıldırım district of Bursa province. The system was planned to meet the charging requirements of two electric vehicles with a total daily energy consumption of 70 kWh; for this purpose, a hybrid energy system supported by photovoltaic panels and batteries was proposed. The daily energy consumption of the electric vehicle charging stations was calculated as 11.67 kWh, and the total annual energy consumption as 25,451 kWh. HOMER Grid software was utilized for the design and performance analysis of the system, where the region's solar radiation potential, meteorological data, energy load profiles, and electricity tariffs were evaluated in detail. As a result of the simulations, the total annual energy production capacity of the system was determined to be 36,983 kWh, and it was observed that the balance between energy production and consumption established a sustainable energy infrastructure. According to the economic analyses, the total investment cost of the system was calculated as 256,545.45 ₺, the operating cost as 221,188.01 ₺, and the payback period as 7.8 years. The effects of seasonal solar radiation variations on energy production were examined, and it was determined that the system operates efficiently throughout the year. The obtained results indicate that hybrid energy systems make electric vehicle charging infrastructures economically and environmentally sustainable by combining renewable energy sources and energy storage solutions. It has been demonstrated that such hybrid systems offer an effective solution even in regions with medium-level solar energy potential, such as the Yıldırım district of Bursa. This study shows that the effective use of renewable energy sources presents a significant approach for developing electric vehicle infrastructure and increasing energy independence.