Environmental load reduction effect of solar power generation by recycling technology

Abstract

The purpose of this research is to evaluate the environmental load reduction effect of recycling in anticipation of the timing of mass disposal of solar panels, which have been rapidly introduced in recent years. As a result of analysis using government information and life cycle assessment, which is an index for quantifying environmental load, it was found that the amount of waste in 2034 can be reduced by up to about 530,000 tons and the environmental load can be reduced by up to about 2.9 million tons-CO2. In addition, the internal cost directly involved in recycling is 194 yen / kg, the external cost that costs the environmental impact during recycling is 54 yen / kg, and the recoverable profit is 196 yen / kg. As a result of sensitivity analysis considering the demand trend of recycled resources, it was suggested that price fluctuations of polysilicon and aluminum have a significant influence on the recovery profit.