研究目的
The main goal of this study is to understand the environmental differences between fixed and SATS PV systems. A secondary goal is to determine the environmental impact of both systems under different scenarios that includes manufacturing in high and low CO2 intensive electricity grids, installation in different locations and different energy displacement options.
研究成果
Results show the CO2 mitigation potential of SATS increases between 3.4 t CO2;eq/kW and 14.5 t CO2;eq/kW with respect to fixed systems in the baseline scenarios considered. All environmental indicators used are superior for SATS compared to traditional fixed systems. The results also show that the energy sources displaced have a larger impact in the CO2 mitigation potential than the irradiation in the place of installation.
研究不足
The study is attributional and has been calculated with the cut-off modeling of ecoinvent 3.1. The authors ignore climate control, ventilation, lighting and other consumptions during the manufacturing stage. Auxiliary electricity consumption was not included.
1：Experimental Design and Method Selection:
A comparative LCA between fixed and SATS was performed using the cut-off modeling of ecoinvent 3.1. Calculations were performed with the software openLCA 1.7.4 with impacts obtained based on ReCiPe, cumulative energy demand and cumulative exergy demand methods.
2：Calculations were performed with the software openLCA 4 with impacts obtained based on ReCiPe, cumulative energy demand and cumulative exergy demand methods.
Sample Selection and Data Sources:
2. Sample Selection and Data Sources: Data published by Xie et al. (2018) for the production of m-Si PV panels in China was used. Water consumption was obtained from Huang et al. (2017).
3：7).
List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: The study considered the manufacturing of solar panels, BOS, O&M and EOL management.
4：Experimental Procedures and Operational Workflow:
The study covered the main stages of the life cycle of a PV plant: manufacturing, installation, O&M and EOL management.
5：Data Analysis Methods:
The impact assessment methods included cumulative energy demand, cumulative exergy demand, and ReCiPe.
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