Energetic and Environmental Benefits of Residential Solar Microgeneration Added to Electric Vehicle Recharging in the City of Rio de Janeiro

This work investigates the performance of residential microgeneration photovoltaic PV systems connected to the electrical grid. It considers the overall available energy for powering households and charging electric vehicles (EVs). The conducted assessments elucidate the developed methodology and criteria for sizing PV panels, utilizing calculations derived from PV-SOL software. Analysis of atmospheric emissions indicates a reduction in greenhouse gases, notably fossil carbon dioxide (CO2). These assessments have been compared to internal combustion vehicle (ICV) calculations, expressed in the annual equivalent number of trees required to neutralize emissions. Results from Rio de Janeiro, with ample annual sunlight availability, show a positive energy supply balance for such installations. Combining PV power with EV charging is promising, assuming an average daily journey of 84 km and nighttime charging occurring approximately 4 hours after peak hours.