Low-Carbon Grading Evaluation Method for Transformers and Its Application in Green Procurement
変圧器の低炭素グレーディング評価方法とそのグリーン調達への応用 (AI 翻訳)
Xiaoxuan Bai, Chao Li, M Wang, Hui Li, Ning Ding, P L Li, Weiqing Zhou, Hang Su
🤖 gxceed AI 要約
日本語
本研究は、変圧器のカーボンフットプリント（CF）とライフサイクル低炭素指標を統合したグレーディング評価方法を開発した。18台の変圧器に適用し、運用保守段階が全体の45%以上を占め、主要な低炭素パフォーマンスの要因であることを明らかにした。原材料取得段階の寄与は10.95～28.57%で、製品間の差を広げている。この方法はグリーン調達の意思決定支援に有用である。
English
This study develops a low-carbon grading evaluation method for transformers integrating carbon footprint (CF) and life cycle low-carbon indicators. Applied to 18 transformers (10 kV and 10-1000 kV), results show the operation and maintenance phase dominates (>45.24%) and is key to low-carbon performance. The raw-material acquisition phase accounts for 10.95-28.57%, with a 2.93 times variation widening product differences. The method enables clear differentiation of carbon levels and supports green procurement decisions.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本では、グリーン調達基準の策定が進んでおり、特に変圧器など電力機器の低炭素評価は重要である。本手法はライフサイクル視点での評価を可能にし、SSBJやESG情報開示におけるScope3排出量算定にも応用可能である。電力業界のサプライチェーン排出削減に貢献する。
In the global GX context
Globally, green procurement is increasingly mandated, and this method provides a robust, life-cycle-based grading system for transformers. It aligns with ISO 14067 (product carbon footprint) and can support compliance with emerging disclosure requirements such as ISSB and CSRD. The clear differentiation of carbon levels aids in supply chain decarbonization decision-making.
👥 読者別の含意
🔬研究者:This paper offers a practical method for product-level carbon footprint grading that integrates life cycle assessment with distribution-based classification, useful for further research in low-carbon product evaluation.
🏢実務担当者:Corporate procurement teams can use this grading method to incorporate carbon performance into supplier selection and green procurement criteria, especially for transformers.
🏛政策担当者:Regulators can leverage this approach to develop standardized low-carbon product classification systems for industrial equipment, supporting national green procurement policies.
📄 Abstract（原文）
In green procurement, the full life cycle concept is not yet well established, and existing low-carbon evaluation systems remain insufficiently robust. To address these gaps, this study develops a low-carbon assessment method for transformers that centers on the carbon footprint (CF) and incorporates life cycle low-carbon indicators. A grading approach based on the distribution characteristics of the samples is used to classify the CF, and this classification is combined with a low-carbon indicator score to form a comprehensive evaluation system. The method was applied to eighteen transformers: 10 kV and eight spanning 10 to 1000 kV. The results show strong consistency between the CF and the low-carbon indicator scores, with clear stepwise differences in the overall evaluation outcomes. The operation and maintenance phase consistently dominates, accounting for at least 45.24% of the total and serving as the key driver of low-carbon performance. The raw-material acquisition phase contributes 10.95–28.57%, its highest value is 2.93 times its lowest, which substantially widens the differences among products. This study presents a grading evaluation method that integrates the CF and life cycle low-carbon indicators, enabling clear differentiation of product carbon levels and providing decision support for green transformer procurement and for the green transformation of the industry.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/su18147442first seen 2026-07-23 05:15:51
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