Research On Building Integrated Photovoltaics Home System And Semiconductor Illumination By Using Solar Energy

With Building Integrated Photovoltaics (BIPV), photovoltaic material becomes an integral part of the building: the walls, roof, and vision glass. Sunlight falling on the photovoltaic components creates electricity. Both the building owner and the utility benefit with grid-tied BIPV. The on-site production of solar electricity is typically greatest at or near the time of a building's and the utility's peak loads. The solar contribution reduces energy costs for the building owner while the exported solar electricity helps support the utility grid during the time of its greatest demand.The experimental and theoretical investigations of the effect of tilt angle and orientation on performance of PV array in BIPV at Guangzhou have been done. The first grid-tied PV system at Guangzhou has been built, and it can provide a good experiment station for research. This work was supported by the National Technologies R&D Program during the 10th Five Year Plan Period in China.Here lists the main work:Ⅰ.By mathematic models for PV module and models for the estimating the hourly irradiation on the module slope plane, the performance of PV module has been investigated theoretically at different tilt angles and orientations. As a result, it is found that the optimum tilt angle and orientation of the PV array are 19° and south facing for grid-tied PV system at Guangzhou; the orientation may affect more obvious in high latitude than in low latitude.Ⅱ. The experiment investigations of the effect of tilt angle and orientation on performance of PV array shows that the effects on the energy yield and the performance of the PV array are almost similar with the result of theoretical calculations; at actual condition, the water fall and dust storms are quite considerable for PV modules mounted with small tilt angles.Ⅲ. Making a summary of the design and construction regulation of the PV Roof and PV Hallway BIPV systems built in Solar system research institute of Sun Yat-SEN University, Guangzhou.Ⅳ.The PV Roof and PV Hallway BIPV systems have run for several month, and there is not any problem for them.