Wattnet:低炭素・低水フットプリントの電力供給と電力消費のマッチング
Wattnet: matching electricity consumption with low-carbon, low-water footprint energy supply (原題)
Castrillo, Maria, Iglesias Blanco, Jaime, López García, Álvaro
🤖 gxceed AI 要約
日本語
Wattnetは、欧州の電力消費に伴う炭素フットプリント(CF)と水フットプリント(WF)を15分解像度で同時評価するオープンソースツールである。国境を越える電力輸出入と地域の電源構成を考慮した電力フロー追跡手法を実装し、2024年の複数地域で比較した。結果、電力フローと時間変動を無視するとCF・WFを大きく誤推定し、脱炭素と水使用のトレードオフ(特に貯水池水力)が明らかになった。データセンターのワークロードスケジューリングや政策立案に有用である。
English
Wattnet is an open-source tool that jointly assesses the carbon footprint (CF) and water footprint (WF) of electricity consumption across Europe at 15-minute resolution. It implements electricity flow-tracing that accounts for local generation mixes and cross-border imports/exports. Results show that ignoring flows and temporal variability misestimates CF and WF, and reveal trade-offs between decarbonisation and water use, especially reservoir hydropower. It supports workload scheduling for data centers and transparent decision-making for policymakers.
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
日本ではデータセンターの電力消費増加と再エネ調達、水リスク管理がGX課題。本ツールはSSBJのScope2評価や水リスク開示に応用可能で、電力の時間別・地域別フットプリント算定の重要性を示す。
In the global GX context
Globally, this work advances disclosure infrastructure for Scope 2 and water accounting by providing high-resolution, consumption-based footprints. It aligns with TCFD/ISSB water and carbon metrics, and supports corporate renewable procurement and data center sustainability strategies.
👥 読者別の含意
🔬研究者:電力フロー追跡と高時間解像度フットプリント評価の手法を提供し、炭素・水のトレードオフ分析に貢献する。
🏢実務担当者:データセンターのワークロードスケジューリングや再エネ調達の最適化に活用でき、Scope2・水リスク管理の精度向上に役立つ。
🏛政策担当者:電力の時間別・地域別環境影響を可視化し、脱炭素と水資源政策の整合性を図るためのエビデンスを提供する。
📄 Abstract(原文)
The environmental impact of electricity consumption is commonly assessed through its carbon footprint (CF), while water-related impacts are often overlooked despite the strong interdependence between energy and water systems. This is particularly relevant for electricity-intensive activities such as data center (DC) operations, where both carbon emissions and water use occur largely off-site through electricity consumption. In this work, we present Wattnet, an open-source tool that jointly assesses the CF and water footprint (WF) of electricity consumption across Europe with high temporal resolution. Wattnet implements an electricity flow-tracing methodology that accounts for local generation mixes, as well as for cross-border electricity imports and exports at a 15-minute resolution. Operational and life-cycle impact factors are used to quantify and compare local (generation-based) and global (consumption-based) footprints for multiple European regions during 2024. The results demonstrate that neglecting electricity flows and temporal variability can lead to significant misestimations of both CF and WF, particularly in countries with high levels of electricity trade or hydropower dependence. Furthermore, the joint analysis reveals trade-offs between decarbonisation and water use, highlighting the prominent role of reservoir-based hydropower in increasing WF even in low-carbon systems. Wattnet facilitates informed decision-making for workload scheduling and energy-aware operation of DCs, while also enhancing transparency regarding the environmental impacts of electricity consumption for end users and policymakers.
🔗 Provenance — このレコードを発見したソース
- Zenodo https://zenodo.org/records/22775518first seen 2026-09-16 04:11:07 · last seen 2026-09-21 04:14:27
- openalex https://doi.org/10.5281/zenodo.22775518first seen 2026-09-17 04:48:41
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