Fraunhofer-ISE：2024年光伏市场研究报告：2013-2023年复合年增长率分析与未来展望（英文版）

Material usage for silicon cells has been reduced significantly during the last 18 years from around 16 g/Wp (in 2004) to about 2.2 g/Wp in 2023 due to increased efficiencies, thinner wafers (150µm) using diamond wire saws, and larger ingots.  The Energy Payback Time of PV systems is dependent on the geographical location: PV systems manufactured in Europe and installed in Northern Europe require approximately 1.1 years to pay back the energy input, while PV systems installed in the South r