The Carbon Cost of Leakage: Attributing Electricity-Related Greenhouse Gas Emissions to Real Water Losses in Greek Utilities
漏水量の炭素コスト：ギリシャの水道事業における実水損失への電力関連温室効果ガス排出量の帰属 (AI 翻訳)
Angelos Chasiotis, Dimitrios Piromalis, Panagiotis T. Nastos
🤖 gxceed AI 要約
日本語
水道配水システムの実水損失に伴う電力由来の温室効果ガス排出量を、ギリシャの8事業体のデータを用いて定量化した。エネルギー原単位は0.538〜2.434 kWh/m³、炭素原単位は0.198〜0.895 kg CO₂eq/m³であり、実水損失に帰属される排出量は供給電力排出量の22.0〜67.5%に達する。漏水量削減シナリオは欧州の炭素価値ベンチマークと重なる可能性を示し、活動別の電力報告と漏水量・エネルギー原単位・システム規模の統合的考慮を提言する。
English
This study quantifies electricity-related GHG emissions associated with real water losses in Greek water utilities, using data from eight utilities. Energy intensity ranges 0.538-2.434 kWh/m³ and carbon intensity 0.198-0.895 kg CO₂eq/m³, with real losses accounting for 22.0-67.5% of supply electricity emissions. Leakage reduction scenarios may overlap European carbon value benchmarks, supporting activity-level electricity reporting and integrated mitigation prioritization.
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
日本では水道事業のカーボンニュートラル化が進む中、インフラ老朽化に伴う漏水対策とGHG排出削減の連携は重要。本研究成果は、SSBJ開示や自治体の脱炭素計画において、漏水削減のCO2削減効果を算定する際の方法論的参考となる。
In the global GX context
Globally, this paper bridges water utility operations and carbon accounting, aligning with ISSB/CSRD disclosure requirements that demand activity-level emissions. It offers a replicable method for attributing electricity emissions to water losses, relevant for utilities facing transition finance and climate risk assessments.
👥 読者別の含意
🔬研究者:Provides a method to link water loss to carbon emissions, useful for infrastructure carbon accounting research.
🏢実務担当者:Water utilities can use the intensity metrics to prioritize leak reduction for carbon savings.
🏛政策担当者:Informs policy on integrating water loss reduction into climate mitigation strategies.
📄 Abstract（原文）
Water lost from drinking-water distribution systems has already consumed electricity, yet the associated operational greenhouse gas burden is rarely quantified because water balances and organizational emission inventories use different system boundaries. This study links the two within the Greek managerial-adequacy framework using a purposive availability sample of eight utilities and 14 utility-year observations for reference years 2024–2025. We calculate water-supply energy intensity, operational electricity-related carbon intensity per cubic metre of system input (ISO 14064-1 Category 2), and emissions allocated to reported real losses. Because organizational inventories include activities outside water supply—fugitive wastewater emissions reach 94% of the declared total in one island municipality—we classify itemized electricity supply points by activity and grade attribution quality. Energy intensity ranges from 0.538 to 2.434 kWh/m³ and system-input carbon intensity from 0.198 to 0.895 kg CO₂eq/m³. Under proportional average-intensity allocation, reported real losses are assigned 22.0–67.5% of each utility’s water-supply electricity emissions and 2,708 t CO₂eq in the 2025 cross-section. These are accounting allocations from top-down water balances, not direct measurements of leak-specific energy use. A conditional screening analysis shows that, under a one-for-one production response and the illustrative unit-cost assumptions adopted here, leakage-reduction scenarios overlap selected European public-investment carbon-value benchmarks. The results support activity-level electricity reporting and joint consideration of leakage, energy intensity, and system scale when prioritizing mitigation.
🔗 Provenance — このレコードを発見したソース
- crossref https://doi.org/10.20944/preprints202608.0949.v1first seen 2026-08-17 05:55:45 · last seen 2026-08-18 05:24:09
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