Leveraging building flexibility and regional complementarity to achieve urban zero-carbon power systems: Evidence from Hong Kong and Guangdong
ビルの柔軟性と地域の補完性を活用した都市のゼロカーボン電力システムの実現：香港と広東からの証拠 (AI 翻訳)
Weike Peng, Yuntian Chen, Dongxiao Zhang, Shengwei Wang
🤖 gxceed AI 要約
日本語
本研究は、高密度都市におけるゼロカーボン電力システムの実現に向け、ビル柔軟性と地域連携の相乗効果を分析した。香港のビルの負荷シフト可能容量は126.48～1207.24 MWであり、住宅ビルが54.5%を占める。広東からのグリーン電力輸入で香港のカーボンニュートラルが達成可能だが、ビル柔軟性の活用によりコストが4.7億ドル削減され、蓄電池需要が60%減少する。さらに地域連携により香港のシステムコストが追加で4.8%削減される。
English
This study develops a power system planning framework integrating building flexibility and regional cooperation, using Hong Kong and Guangdong as a case. Hong Kong's building load-shifting capacity ranges 126-1207 MW, with residential buildings providing 54.5% of flexibility. Green power imports from Guangdong enable Hong Kong's carbon neutrality at a baseline cost of USD 53.38 billion. Activating local building flexibility reduces system cost by USD 470 million and energy storage demand by 60%. Regional cooperation further lowers Hong Kong's total cost by 4.8% (USD 2.59 billion) and reduces Guangdong's peak load by 831.74 GWh. Sensitivity analysis shows strong negative correlation between flexibility participation and demand response costs up to 71.43 USD/MWh.
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
日本の都市（東京圏など）でも、ビルの空調や給湯の柔軟性を活用した地域間連系の強化が検討されている。本研究成果は、需給調整市場や容量市場の設計、再エネ導入拡大時の系統安定化策として、日本でも応用可能な定量的知見を提供する。
In the global GX context
This paper provides a quantitative framework showing how building-level demand flexibility and inter-regional power cooperation can reduce the cost and storage needs of decarbonizing high-density urban grids. The findings are directly relevant to global cities pursuing carbon neutrality, especially those with regional power interconnections (e.g., city-states, megacities in China, Europe, and the US).
👥 読者別の含意
🔬研究者:Provides a novel integrated model for urban power system planning with building flexibility and regional coordination, offering quantitative results on synergy effects.
🏢実務担当者:Offers city planners and power utilities actionable insights on the cost and storage reduction potential of building demand response programs and cross-border renewable procurement.
🏛政策担当者:Demonstrates the value of regional cooperation and building flexibility incentives (e.g., peak-shaving subsidies) for achieving cost-effective urban decarbonization.
📄 Abstract（原文）
Carbon neutrality accelerates profound green transitions in high-density cities, where building flexibility and regional coordination emerge as promising enablers. However, existing research only assesses flexibility potentials of single buildings or clusters, ignoring its synergistic value across the urban grid or regional cooperation. To address this gap, this study develops a power system planning and operation framework integrating building flexibility and regional cooperation, with Hong Kong and Guangdong’s power grids as a case study. The results reveal that Hong Kong’s building flexibility capacity in load-shifting ranges from 126.48 to 1207.24 MW, positively correlated with load levels but negatively correlated with load fluctuation rates. Residential buildings contribute 54.5% of the total flexibility potential, while office and retail buildings collectively account for 25.8%, with distinct temporal complementarity. Relying on Guangdong’s green power imports enables Hong Kong to realize carbon neutrality at a baseline cost of 53.38 billion USD. The activation of local building flexibility further reduces the cost by 470 million USD and cuts energy storage demand by 60%. Regional cooperation magnifies the value of building flexibility, lowering Hong Kong’s total system cost by an additional 4.8% (2.59 billion USD) and reducing Guangdong’s annual average peak load by 831.74 GWh. Sensitivity analysis reveals that building flexibility participation is strongly negatively correlated with demand response costs within the range of 0–71.43 USD/MWh, and participation saturates once the peak-shaving subsidy hits 214.29 USD/MWh. This work is expected to provide reliable technical support for power system decarbonization in high-density cities and surrounding regions globally.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.adapen.2026.100297first seen 2026-07-22 05:22:09
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