Discover how photovoltaic curtain walls are reshaping sustainable architecture – from energy efficiency to aesthetic innovation. This article explores their applications, real-world case studies, and future trends in green building design. Photovoltaic (PV) curtain walls, also known as solar. The photovoltaic curtain wall (roof) system, as the outer protective structure of the building, must first have various functions such as weatherproof, heat preservation, heat insulation, sound insulation, lightning protection, fire prevention, lighting, ventilation, etc. Typical applications include: They are also a strong option for major envelope. outer walls of tall multi-storey bui le, energy storage systems, and microgrids.