优化半透明光伏建筑一体化窗户以平衡办公建筑中的采光与太阳能性能

Abstract Building facades, especially windows, are essential for indoor lighting and solar energy use, but traditional windows often fail to balance daylighting and energy performance, while semi-transparent building-integrated photovoltaics (BIPVs) offer a promising solution, though research on optimizing their design for energy harvesting, daylight sufficiency, and glare control in office spaces is limited. This study proposes a multi-objective optimization framework for designing semi-transparent building-integrated photovoltaic (BIPV) windows to balance energy efficiency, daylight quantity, and glare control in office buildings. Using a case study of an office on a campus in Wuhan, we developed a parametric model to control key design parameters such as photovoltaic window area and distribution. Simulations evaluated the impact on daylight sufficiency, glare, and photovoltaic efficiency. The results were analyzed using K-means clustering, revealing three design clusters: one maximizing transmittance with lower daylight and glare performance, another optimizing energy production and glare reduction, and a third offering a balanced performance with the best daylighting, though slightly reduced glare. The optimal design from Cluster 3 resulted in a 15.63 % increase in annual illuminance, improved daylight uniformity, and a 6.55 % increase in spatial glare autonomy, while maintaining sufficient daylight levels. The BIPV system generated 5,508.86 kWh annually, meeting the office’s entire nighttime energy demand. This framework provides valuable guidance for early-stage building design, helping to optimize both energy and lighting performance in BIPV-integrated facades.