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As producers strive to reduce their declared carbonCarbon footprints, the use of post-consumer scrapScrap (PCSPost-Consumer Scrap (PCS)) has emerged as both a solution and a challenge due to its limited availability. The use of PCSPost-Consumer Scrap (PCS) is also a point of methodological debate, as life cycle assessment (LCA) methods for evaluating its use vary widely, and expert consensus remains divided. Unlike the beverage can, which has a short lifetime, high-voltage cables are long-lifetime products with standardised product category rules (e.g., EN 50693). Using cut-off and net-scrapScrap LCA approaches, this study quantifies how LCA methodological choices can alter the climate impact claims across varying PCSPost-Consumer Scrap (PCS) inputs and end-of-life recyclability assumptions for high-voltage aluminiumAluminium cables. Based on the results, the net-scrapScrap approach provides a more robust assessment of the product's footprint, as it encompasses both the recycled content and end-of-life recyclability of the product. This reflects industrial reality better, increases transparency, and boosts confidence in environmental declarations.

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How LCA Method Choice Skews the Carbon Footprint of Aluminium Cables with Post-consumer Scrap

  • 会议论文

  • 发表日期：

    2026年

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  • Chibuikem Nwagwu,
  • Jon Halfdanarson,
  • Christina Meskers

摘要

As producers strive to reduce their declared carbonCarbon footprints, the use of post-consumer scrapScrap (PCSPost-Consumer Scrap (PCS)) has emerged as both a solution and a challenge due to its limited availability. The use of PCSPost-Consumer Scrap (PCS) is also a point of methodological debate, as life cycle assessment (LCA) methods for evaluating its use vary widely, and expert consensus remains divided. Unlike the beverage can, which has a short lifetime, high-voltage cables are long-lifetime products with standardised product category rules (e.g., EN 50693). Using cut-off and net-scrapScrap LCA approaches, this study quantifies how LCA methodological choices can alter the climate impact claims across varying PCSPost-Consumer Scrap (PCS) inputs and end-of-life recyclability assumptions for high-voltage aluminiumAluminium cables. Based on the results, the net-scrapScrap approach provides a more robust assessment of the product's footprint, as it encompasses both the recycled content and end-of-life recyclability of the product. This reflects industrial reality better, increases transparency, and boosts confidence in environmental declarations.