Texturized glass in the application of architectural photovoltaics

Abstract

In this work an application of two texturized glasses as a front side material for PV (photovoltaic) system in architectural and designed installation was analysed taking into account optical, topographic, electrical and aesthetic aspects. Since Building Integrated Photovoltaic (BIPV) is becoming increasingly popular, expanding the scope of installation on facades, building walls and various types of glazing its aesthetics aspects become one of the key parameters. For some BIPV application a surface topography such as roughness and or matte surface meeting aesthetic requirements is crucial. Additionally, in the case of installations in urban spaces, an important parameter is the low reflectance value and, consequently, the reduction of light reflections that can blind drivers. The measurements carried out show that the use of glass with a textured surface slightly reduces the electrical parameters of the PV system: around 5% for power (W) while significantly reducing the reflection parameters (light reflection) up to 88% in visible (VIS) region.