结合循环和环境指标来评估PV硅的物料流动

IF 1.9 Q3 PHYSICS, APPLIED EPJ Photovoltaics Pub Date : 2023-01-01 DOI:10.1051/epjpv/2022031
Aistis Rapolas Zubas, Marie Fischer, Estelle Gervais, Sina Herceg, S. Nold
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引用次数: 1

摘要

由原始原料制成的产品最终进入垃圾填埋场呈现线性供应链模型。今天的光伏(PV)产业在很大程度上仍然基于这种模式。随着产量的增加,所需原材料的增加,以及随之而来的废物量的增加,在光伏行业应用循环经济原则可以显著提高其环境效率。本研究分析了用于光伏组件生产的光伏硅供应链的循环影响。基于技术路径和循环选项的组合,创建了四个场景。采用材料循环度指标(MCI)和生命周期评价(LCA)方法对其进行评价。光伏多晶硅供应链的最新案例对应的MCI得分为0.54。闭环循环解决方案的MCI得分为0.80,显示了该行业采用循环经济方法的潜力。LCA结果表明,循环度提高,对环境的影响减少了12%。该研究展示了供应链中潜在循环选择的好处,以及技术发展对多晶硅需求的影响。
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Combining circularity and environmental metrics to assess material flows of PV silicon
A product made from virgin raw materials that ends up in a landfill presents a linear supply chain model. Today's photovoltaic (PV) industry is still largely based on this model. With the increasing volume of production, the raw materials required for it, and consequently the volume of waste, the application of circular economy principles in the PV sector can significantly increase its environmental efficiency. This study analyzes the impact of circularity on the supply chain of PV silicon used for PV module production. Four scenarios based on the combination of technological pathways and circularity options are created. Their evaluation is carried out by the methodologies of Material Circularity Indicator (MCI) and Life Cycle Assessment (LCA). The State-of-art case of the PV polysilicon supply chain corresponds to the MCI score of 0.54. Closed-loop circularity solutions provide the MCI score of 0.80 presenting the potential for a circular economy approach in the industry. LCA results show the reduction of environmental impact by 12% with improved circularity. The study presents the benefits of potential circularity options within the supply chain as well as the impact of technological development on the polysilicon demand.
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来源期刊
EPJ Photovoltaics
EPJ Photovoltaics PHYSICS, APPLIED-
CiteScore
2.30
自引率
4.00%
发文量
15
审稿时长
8 weeks
期刊最新文献
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