BIPV are photovoltaic materials that are used to replace conventional building materials in part of the building envelope such as the roof, skylights, or facades. It is a new concept of solar applications. Because the solar technology is integrated with the architectural aesthetics, it is a kind of high and new technology which is widely spreading all over the world. BIPV is not a simple combination of solar modules with building. It is integrated application of cutting-edge technologies of many subjects, including architecture, art, thermodynamics, electronics, electrodynamics, etc. In BIPV, solar modules are used as building materials which can generate electricity, not only energy-saving and environmentally, friendly, but also beautiful and practical. The solar technology should be integrated into the building design, in which the building functions should be considered. It is a brand new building design idea and energy- saving method. Main application forms of BIPV: 1. Rooftop solar power plant 2. PV façade 3. PV skylight 4. PV sunshade 5. PV canopy 6. PV carport 7. PV roofing