Assessment of Energy Savings from a Balcony Photovoltaic System in a Residential Building

This study evaluates the influence of solar balcony dimensions on the energy consumption and generation patterns of a two-story residential building located in Beijing, China. Balconies with varying lengths (۲ m and ۲.۵ m) and widths (۲ to ۳.۵ m) are analyzed to examine their impact on monthly and annual energy performance. Using EnergyPlus simulations incorporating detailed building specifications, HVAC operation, and monocrystalline silicon solar cells with integrated microinverters, the study reveals that seasonal meteorological factors predominantly dictate energy consumption and solar generation. Energy consumption peaks in winter due to heating demands, while solar energy production follows the solar radiation cycle, peaking in summer. Variations in balcony size demonstrate negligible effects on overall energy consumption, solar power output, and inverter heat losses, with differences often below ۰.۵%. These findings confirm that solar balcony size is an insignificant factor in building energy dynamics, and seasonal environmental conditions are the primary drivers of energy consumption and production.

کلیدواژه ها:

Solar energy ، Residential building ، balcony ، Energy consumption