Marginal Abatement Cost Analysis of Wastewater Reuse Systems under Varying Renewable Energy Penetration and Operational Conditions
再生可能エネルギー普及率と運用条件の変動下における下水再利用システムの限界削減費用分析 (AI 翻訳)
Seung Il Baik, Hana Kim
🤖 gxceed AI 要約
日本語
済州島の下水再利用システム（MBR+UF/RO）を対象に、時間分解データを用いた動的LCAと技術経済評価を実施。再生可能エネルギー導入率0-80%と2つの運用戦略を組み合わせた9シナリオを分析し、再エネ比率の向上でGHG排出原単位が最大約70%削減されることを示した。限界削減費用（MAC）は34〜41千KRW/tCO2eqで非線形に変化し、40%でピークに達する。WWTP連携戦略（F1）がVRE追従戦略（F2）より高い削減効果と低いMACを示した。
English
This study evaluates a wastewater reuse system (MBR+UF/RO) in Jeju using dynamic LCA and techno-economic assessment with hourly data. Nine scenarios combining renewable penetration (0-80%) and operational strategies (WWTP-coupled vs VRE-following) show that higher renewables reduce GHG intensity by up to ~70%. Marginal abatement cost ranges 34-41 thousand KRW/tCO2eq, peaking at 40% penetration. The WWTP-coupled strategy achieves higher reductions and lower MAC.
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
日本では下水処理場の脱炭素化が進む中、再エネ調達と運用戦略の時間的整合性が重要。本研究成果は、自治体や水道事業者がPPAや再エネ導入を検討する際の意思決定に示唆を与える。
In the global GX context
Globally, this research contributes to the growing literature on decarbonizing public infrastructure, particularly water utilities. The use of dynamic LCA and MAC analysis provides a methodological framework applicable to other regions seeking to align renewable procurement with operational strategies.
👥 読者別の含意
🔬研究者:Provides a methodological example of combining dLCA and TEA to assess decarbonization options in water infrastructure.
🏢実務担当者:Offers insights for water utilities on how to optimize renewable procurement and operational strategies to reduce emissions cost-effectively.
🏛政策担当者:Highlights the importance of considering temporal alignment in renewable energy policies for public infrastructure.
📄 Abstract（原文）
This study evaluates the environmental and economic performance of a wastewater reuse system (MBR + UF/RO) in Jeju under varying levels of variable renewable energy (VRE) utilization. Hourly-resolution data (8,760 hours) on electricity generation mix and wastewater treatment operation were used to conduct dynamic life cycle assessment (dLCA) and techno-economic assessment (TEA). Under a PPA-based electricity procurement framework, nine scenarios were analyzed by combining renewable energy penetration levels (0-80%) with two operational strategies: WWTP-coupled (F1) and VRE-following (F2). The results show that increasing renewable energy penetration reduces GHG emission intensity by up to approximately 70% per unit of reuse water. The marginal abatement cost (MAC) ranges from 34 to 41 thousand KRW/tCO2eq and exhibits a non-linear pattern, peaking at 40% penetration before declining at higher levels. In addition, the F1 strategy consistently achieves higher emission reductions and lower MAC compared to F2. These findings highlight the importance of temporal alignment between electricity procurement and operational strategies and emphasize the need for MAC-based decision-making in decarbonizing public infrastructure systems.
🔗 Provenance — このレコードを発見したソース
- openaire https://doi.org/10.62765/kjlca.2026.27.1.21first seen 2026-08-04 04:46:06
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