Sustainability Benefit Ratio: Bridging Environmental Metrics and Economic Feasibility for Circular Remanufacturing of Perovskite Solar Cells
持続可能性便益比：ペロブスカイト太陽電池の循環型リマニュファクチャリングにおける環境指標と経済的実現可能性の橋渡し (AI 翻訳)
Tomohiko Nakajima, Yuuki Kitanaka, Masayuki Fukuda
🤖 gxceed AI 要約
日本語
本論文は、ペロブスカイト太陽電池の循環型リマニュファクチャリングを評価するための新指標「持続可能性便益比（SBR）」を提案する。SBRは温室効果ガス排出量とライフサイクルコストを統合し、リマニュファクチャリングが従来の新規製造よりも長期的に高い循環価値を生むことを示す。さらに、ベイズ最適化を用いて経済的に実現可能な設計仕様を探索する手法を提示する。
English
This paper proposes a Sustainability Benefit Ratio (SBR) that integrates GHG emissions and life-cycle costs to assess circular remanufacturing of perovskite solar cells. It shows that remanufacturing yields higher long-term circular value than new manufacturing, and uses Bayesian optimization to explore economically viable design specifications.
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
日本はペロブスカイト太陽電池の研究開発に積極的であり、本指標は太陽電池の循環型設計指針として有用。特に、産業用炭素系アーキテクチャを対象としており、日本のメーカーが実装を検討する際の評価ツールとなり得る。
In the global GX context
This work bridges environmental and economic metrics for circular solar cell design, relevant to global PV circularity initiatives (e.g., EU's Circular Economy Action Plan). The SBR indicator can inform international standards for assessing remanufacturing viability.
👥 読者別の含意
🔬研究者:Provides a novel analytical framework (SBR) and Bayesian optimization methodology for studying circularity in energy technologies.
🏢実務担当者:Offers a practical metric (SBR) to evaluate and optimize remanufacturing strategies for perovskite solar cells, aiding lifecycle decision-making.
🏛政策担当者:Demonstrates the need for combined environmental-economic indicators in circular economy policies and can inform subsidy or regulatory design for solar module end-of-life management.
📄 Abstract（原文）
Perovskite solar cells (PSCs) are approaching large-scale deployment, yet short lifetimes and end-of-life risks make circular strategies essential. Here we propose a time-resolved Sustainability Benefit Ratio (SBR), a dimensionless indicator that aggregates (i) physically accounted greenhouse-gas emissions/avoidance and (ii) monetized life-cycle costs converted to CO2-equivalent via an economic carbon-intensity coefficient (CC), enabling a unified assessment of environmental performance and economic burdens over time. This work highlights design for remanufacturing as a key enabler of circular PSC deployment. Using an industrially relevant carbon-based PSC architecture designed for remanufacturing, we simulate multi-cycle operation under periodic remanufacturing and repeated new manufacturing, and derive an analytic steady-state limit, SBRss. Remanufacturing markedly increases long-run circular value relative to renewal replacement under realistic lifetimes, while conventional payback economic indicators diverge in timing, motivating an explicit bridge between environmental payback and economic feasibility. We therefore introduce a circular value weighting factor β applied only to CC-converted terms, where β = 0 recovers a purely physical CO2-based benefit-to-burden ratio, and β-sweeps transparently represent stakeholder-dependent emphasis on valuation-weighted burdens/credits. Finally, feasibility-constrained design maps and Bayesian optimization demonstrate that SBRss can serve as a practical objective function to efficiently explore economically viable remanufacturing specifications and identify dominant design levers governing circular value.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.3390/su18062796first seen 2026-06-29 09:07:41
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gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。