A preliminary study on potential for very large scale PV system (VLS-PV) on the Gobi desert from economic and environmental view points

摘要

A 100MW very large scale photovoltaic power generation (VLS-PV) system is designed assuming that it is installed on the Gobi desert in China. All the parts of the system are designed and evaluated from economic and environmental view points. Energy Payback Time (EPT), CO{sub}2 emission rate and generation cost are estimated based on the methodology, Life-Cycle Assessment (LCA). As a result of the estimation, 1.8year of EPT and 12g-CIkWh CO{sub}2 emission rate are obtained. Assuming PV module price of 1USD/W, system lifetime of 3oyears and interest rate of 3%, the generation cost is calculated as 6.3cent/kWh on the Gobi desert. These results suggest that the VLS-PV system is very promising for the global warming and energy issues.