Quantifying the Cross-Regional Spillover Effects of Offshore Wind Power on National Carbon Footprint: Insights from China’s Two Largest Installed Capacity Provinces
中国最大設備容量の2省における洋上風力発電の全国炭素フットプリントに対する地域間波及効果の定量化 (AI 翻訳)
Zhenfeng Zhang, Chong Jiang, Aiyun Song, Yixin Wang, Yangling Chen, Shiqiao Ruan, Ying Zhao
🤖 gxceed AI 要約
日本語
本研究はEE-MRIOを用いて広東省と江蘇省の洋上風力発電を分析。地元消費モデルにより石炭火力を代替し、江蘇省で年間1672万トン、広東省で723万トンのCO2削減を達成。上流産業（鉄鋼・非鉄・化学）のグリーン転換を促進し、輸出製品の組込み炭素強度を低減することで全国的な炭素フットプリントを間接的に削減することを示した。
English
This study uses EE-MRIO to analyze offshore wind power in Guangdong and Jiangsu, China. It finds that through a 'local consumption' model, offshore wind effectively replaced coal-fired generation, reducing CO2 emissions by 16.72 million tons annually in Jiangsu and 7.23 million tons in Guangdong. The development also drives green transformation in upstream industries (steel, non-ferrous metals, chemicals) and reduces the embodied carbon intensity of exports, indirectly lowering the national carbon footprint through cross-regional trade.
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
日本の洋上風力政策（洋上風力促進区域など）においても、地域間の炭素排出波及効果を評価する手法として本分析の枠組みが参考になる。特に、製造業のサプライチェーン排出削減効果を定量化した点は、SSBJ対応やScope3削減策に示唆を与える。
In the global GX context
This study demonstrates a methodology (EE-MRIO) for quantifying cross-regional spillover effects of offshore wind power, which is directly applicable to global supply chain decarbonization and ISSB-aligned Scope 3 reporting. The findings show that clean electricity reduces embodied carbon in exports, offering insights for countries like Japan that are expanding offshore wind and facing carbon border adjustment mechanisms.
👥 読者別の含意
🔬研究者:The EE-MRIO framework for quantifying regional spillover effects of renewable energy is a valuable methodological contribution for energy systems and climate policy researchers.
🏢実務担当者:Corporations can use the evidence that offshore wind reduces upstream industrial emissions (steel, chemicals) to inform green procurement and supply chain decarbonization strategies, especially for export-oriented industries.
🏛政策担当者:The paper provides quantitative evidence for optimizing offshore wind layouts and coordinating regional emission reductions, which is relevant for national energy and climate policies as well as carbon trading system design.
📄 Abstract（原文）
As a clean and renewable energy source, wind energy offers lower development and utilization costs than solar energy, making it the most promising renewable option. However, the carbon footprint of offshore wind power and its external impacts on cross-regional carbon emissions have not been investigated sufficiently. Using the provinces of Guangdong and Jiangsu as case studies, this study employs socioeconomic and environmental statistical data. It applies the environmentally extended multi-regional input–output (EE-MRIO) method to quantify cross-regional environmental spillover effects associated with offshore wind power development. The findings show that China’s power structure has been continuously optimized, with offshore winds achieving leapfrog growth since 2010. Through a “local consumption” model, offshore wind power in Guangdong and Jiangsu has effectively replaced coal-fired generation, substantially reducing carbon emissions locally and in neighboring areas. Jiangsu has reduced CO2 emissions by 16.72 million tons annually, and Guangdong by about 7.23 million tons annually. Furthermore, offshore wind development drives the green transformation of upstream industries (e.g., steel, non-ferrous metals, and chemicals). It extends carbon-reduction benefits to resource-rich regions such as the Northwest and North China. As major manufacturing hubs, both provinces lowered the embodied carbon intensity of their export products by using clean electricity, thereby indirectly reducing the national carbon footprint through cross-regional trade. This study offers scientific insights to help policymakers optimize offshore wind layouts, facilitate coordinated regional emission reductions, and advance sustainable energy transitions.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/su18125857first seen 2026-06-11 05:36:53
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