地域電力システムのライフサイクル炭素フットプリント会計：生産・消費フレームワーク
Life-cycle carbon-footprint accounting of regional power systems: A production-consumption framework (原題)
Zhiyuan Yang, Yanghui Guo, Yanbo Sun, Xuan Zhang, Shangheng Yao, Guori Huang, Ziyi Liu, Chengwei Wang
🤖 gxceed AI 要約
日本語
中国南方電網の5省を対象に、発電・送電・消費が空間的に分離した連系系統で、生産側と消費側のライフサイクル炭素フットプリントを区別して算定する枠組みを提示。域内電源構成、最終消費の電源別シェア、省間電力融通、送配電ロス、送配電設備のフットプリントを統合する。広東は輸入電力のクリーン比率が高く消費側係数が生産側を下回る一方、広西・海南は差が小さい。地域の炭素責任配分や省間補償設計に資する。
English
This paper develops a production-consumption life-cycle carbon-footprint accounting framework for interconnected regional grids, applied to five provinces in China Southern Power Grid. It separates emissions from local generation versus final electricity use, integrating generation portfolios, imported power shares, interprovincial exchange, transmission losses, and T&D facility footprints. Guangdong's consumption-side factor is lower than its production-side factor due to clean imported electricity, while Guangxi and Hainan diverge less. The framework supports regional carbon-responsibility allocation and interprovincial compensation design.
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
日本では電力の間接排出（Scope 2）算定や電力排出係数の扱い、地域間連系をめぐる責任配分がSSBJ・有報のGHG開示で論点となる。本枠組みは、需要家側の消費ベース係数設計や再エネ調達・証書評価を検討する日本企業・政策担当者に示唆を与える。
In the global GX context
Amid ISSB/CSRD and GHG Protocol Scope 2 debates, this work speaks to how consumption-based electricity factors and interregional transmission should be allocated. It offers a transferable method for regions with interconnected grids and imported clean power, relevant to market-based vs location-based accounting discussions globally.
👥 読者別の含意
🔬研究者:生産・消費ベースの炭素責任配分を、送配電ロスや設備フットプリントまで含めて定式化した点が参考になる。
🏢実務担当者:電力調達やScope 2算定で、消費ベース係数と輸入電力のクリーン度をどう評価するかの示唆が得られる。
🏛政策担当者:省間の炭素責任配分や補償制度、地域別電力係数の設計に応用できる枠組みを提供する。
📄 Abstract（原文）
Abstract In interconnected regional power grids, electricity generation, transmission, and final consumption are often spatially separated, making local-generation-based accounting insufficient for allocating life-cycle carbon responsibility. Taking Guangdong, Guangxi, Yunnan, Guizhou, and Hainan within China Southern Power Grid as the regional context, this paper develops a production-consumption life-cycle carbon-footprint accounting framework. The framework distinguishes emissions attributed to local generation from those attributed to final electricity use, and integrates local generation portfolios, final-use source shares, interprovincial electricity exchange, transmission losses, and transmission-and-distribution facility footprints. Using publicly available 2024 electricity statistics and electricity carbon-footprint factors, the proposed equations are applied to calculate sample production-side and consumption-side factors for the five provinces. The results show that production-side factors mainly follow local generation portfolios, while consumption-side factors are reshaped by imported electricity and transmission-related footprints. Guangdong’s consumption-side factor is lower than its production-side factor because imported electricity contains a high clean-energy share, whereas Guangxi and Hainan show smaller divergences. The framework supports regional carbon-responsibility allocation, clean-electricity evaluation, and interprovincial compensation design.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1088/1742-6596/3322/1/012003first seen 2026-09-30 05:00:22
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