The impact of installation methods and environment on power-generation performance of thin film solar modules

• Main Authors: Jen-Ken Hsu, 許仁根
• Other Authors: Shui-Yang Lien
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/72385175749605087343

碩士 === 明道大學 === 材料科學與工程學系碩士班 === 101 === Recently, due to rising oil prices and environmental consciousness, people start to install photovoltaic systems to generate green energy, and expect to decrease pollution on Earth and to save on electrical bills. As a result, building-integrated photovoltaic (BIPV) attracts more and more attentions. However, there is still little information about maximizing benefits of generating solar electricity, since it involves complicated considerations such as PV module tilt angle, facing direction and shading effect. Physical properties of PV modules should also be taken into account for installation. This thesis aims to investigate environmental effects on power generation of PV modules. From the experimental results, it is found that for 1 kW PV module the annual power generation for the tilt angle of 90° (vertical) is only half of that for the tilt angle of 23.5°. The module with the tilt angle of 0° (horizontal) has an intermediate annual power output. For the shading effect investigations, it is found that when shading on one sub-cell in a module, white spots are formed due to the enormously increased series resistance, thus lowering the power generation. Also, the vertical (to the module lines) shaded module can have higher retaining power output than the parallel shading module. Finally, from the module physical property test, thin film PV modules exhibit greater capabilities of isolation of heat, ultraviolet light and infrared light. In summary, this thesis can be expected to provide relevant and reliable information about practical installation for PV systems.