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Optimization of wind-solar-gas-storage integrated energy systems under the carbon and green certificate markets

風力・太陽光・ガス・蓄電統合エネルギーシステムの炭素排出権取引とグリーン証明書市場下での最適化 (AI 翻訳)

Debin Fang, Heng Zhou, Pengyu Wang, Zeyu Xing

PLoS ONE📚 査読済 / ジャーナル2026-04-24#炭素価格Origin: CN
DOI: 10.1371/journal.pone.0346530
原典: https://doi.org/10.1371/journal.pone.0346530

🤖 gxceed AI 要約

日本語

炭素排出権取引(CET)とグリーン証明書取引(GCT)の同時実施により、統合エネルギーシステムの運用コストが最大50.2%削減され、CO2排出量が約29.9%低減される。炭素価格が0.05～0.20 CNY/kgの範囲で経済効率が高く、グリーン証明書価格が80 CNYを超えると限界利益が逓減する。これらの知見は政策設計に重要。

English

This study optimizes wind-solar-gas-storage integrated energy systems under carbon and green certificate markets. Results show that simultaneous implementation of CET and GCT reduces operating costs by up to 50.2% and carbon emissions by 29.9%. The economically efficient carbon price range is 0.05-0.20 CNY/kg, and marginal benefits of green certificate prices diminish beyond 80 CNY. Provides guidance for policymakers on synergistic policy frameworks.

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

本論文は炭素排出権取引とグリーン証明書取引の相乗効果を定量的に示しており、日本のGX政策における排出量取引制度の設計や再生可能エネルギー証書制度の最適化に示唆を与える。

In the global GX context

This study provides empirical evidence on the synergistic effects of carbon pricing and renewable energy certificates, relevant for global transition finance and integrated energy system planning. Supports policymakers designing coordinated market mechanisms.

👥 読者別の含意

🔬研究者:Provides quantitative insights on combined market mechanisms for energy system optimization.

🏢実務担当者:Can inform corporate energy management and investment decisions under carbon and green certificate markets.

🏛政策担当者:Highlights the benefits of integrating carbon and green certificate markets, with specific price ranges for efficiency.

📄 Abstract（原文）

This study investigates the optimization of wind-solar-gas-storage integrated energy systems (IES) under the dual-market mechanisms of carbon emission trading (CET) and green certificate trading (GCT). A unified analytical framework is developed to examine the techno-economic and environmental performance of IES within these combined market structures. The results indicate that the concurrent implementation of CET and GCT leads to a significant reduction in operational costs while simultaneously enhancing system sustainability. Through a series of scenario analyses, we explore the impact of price fluctuations in carbon and green certificate markets on system performance and compliance expenditures. Our findings indicate that the coordinated implementation of CET and GCT can significantly reduce the operating cost of integrated energy systems—by as much as 50.2%—while also effectively lowering carbon emissions by approximately 29.9%. An increase in the carbon price yields dual benefits of cost reduction and emission abatement, with a clearly identifiable economically efficient range between 0.05 and 0.20 CNY/kg. Although higher green certificate prices can further incentivize low-carbon operation, their marginal benefits tend to diminish beyond 80 CNY per certificate. These insights underscore the importance of integrated policy frameworks that leverage the synergistic effects of CET and GCT to optimize energy system performance. The study provides valuable guidance for policymakers, system operators, and stakeholders in the energy sector, highlighting the potential for strategic investments in these market mechanisms to achieve significant environmental and economic benefits.

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