Light transmittance serves as the critical differentiator between BIPV (Building-Integrated Photovoltaics) and conventional PV modules, directly governing the tripartite balance of architectural daylighting, aesthetic integration, and power generation efficiency. By 2025, cutting-edge technologies enable fully customizable transmittance (10%-70%), tailored to diverse application scenarios.

At present, BIPV technology has been widely used, especially in public buildings, commercial buildings and residential buildings. By combining photovoltaic building materials products with building roofs, walls and other structures, BIPV technology achieves building self-sufficiency, reduces carbon emissions, and improves energy efficiency.