Carbon Footprint Assessment and Energy Payback Time of High-Concentration Photovoltaic System

• Main Authors: Tzu Hsin Lo, 羅心慈
• Other Authors: 胡憲倫
• Format: Others
• Language: zh-TW
• Online Access: http://ndltd.ncl.edu.tw/handle/5tx3bu

碩士 === 國立臺北科技大學 === 環境工程與管理研究所 === 103 === The High-concentration photovoltaic system with multijunction III-V cells and tracking system is more efficient than other solar power systems.In the development of solar power generation system , if we also consider the environmental impact of its entire life cycle of the system ,the evaluated results may be used to the applications of technology,to meet the goal of sustainable energy system. This study focuses on carbon footprint assessment and energy payback time in lifecycle of 7.5kW high-concentration photovoltaic system developing from Institute of Nuclear Energy Research.,and investigates some main factors effecting carbon emission and energy payback time from literature review. The estimated carbon footprint is 58.19 g CO2-eq / kW and energy payback time is 1.89 years .The purpose of this study is to compare the carbon footprint with diverse conditions.The main factors involved in this study are as follows: (1) The end-of-life setting of recovery data (2)The extending lifetime of the system (3) Different DNI values in Taiwan (4) Same DNI value with different products. The results indicate that recovery of High-concentration photovoltaic system in end-of-life stage can significantly lower the carbon emissions under feasible technique.And the higher DNI value results in lower carbon emissions.