Allocation Rules Gate Carbon-Price Thresholds in Park-Level Source–Grid–Load–Storage Systems: Institutional Trade-Offs in Six Chinese Provincial Reform Scenarios
Cong Xu, Xinwei Gao
🤖 gxceed AI 要約
日本語
中国6省の電力市場改革シナリオを対象に、パーク型源・網・負荷・蓄電システムの運用モデルをMILPで厳密求解し、炭素価格が需要側の技術代替閾値に与える影響を分析した。排出量は線形ではなく閾値的に反応し、配分ルール・パススルー・無償割当の屈折点という3つの制度的ゲートが閾値を規定する。価格水準自体ではなく配分改革こそがシグナルを回復させると結論づける。
English
Using an exact MILP dispatch model of a park-level source–grid–load–storage system across six Chinese provincial reform scenarios, the paper shows emissions respond to carbon prices in thresholds, not linearly. Three institutional gates—allocation rule, implied pass-through, and the kinked free allowance—determine whether the implied demand-side marginal abatement cost curve operates; the price level itself does not. Allocation reform, not a higher price, restores the signal.
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
中国の炭素市場における無償割当設計と価格シグナルの関係を定量化した点は、日本でもGX-ETSやSSBJ開示と炭素価格の実効性を議論する際の参照枠になる。配分ルールが実効炭素価格を歪めるという知見は、国内排出量取引制度の制度設計論に示唆を与える。
In the global GX context
The paper reframes carbon pricing as an institutional design problem, showing that free-allocation rules and pass-through determine whether a headline price transmits to operational decisions—directly relevant to ISSB/CSRD disclosure of internal carbon prices and to debates on ETS design and transition finance credibility globally.
👥 読者別の含意
🔬研究者:炭素価格の実効性を閾値・限界削減費用曲線として定式化する手法は、需要側の気候政策評価研究に応用できる。
🏢実務担当者:社内炭素価格が実際の設備運用判断に伝わるかは配分・パススルー制度次第であり、開示上の内部炭素価格の説得力評価に使える。
🏛政策担当者:無償割当の屈折構造が実効炭素価格を大きく割り引くため、価格水準引き上げより配分改革が有効という政策示唆。
📄 Abstract（原文）
Whether a carbon price changes how energy users dispatch their own generation is usually treated as a technical question rather than an institutional one. This paper asks when, and under what institutional conditions, a carbon price crosses the technology-substitution threshold in demand-side daily operation. We build a dispatch model of a park-level source–grid–load–storage system, solve it exactly as a mixed-integer linear program alongside a rule-based heuristic, and simulate six Chinese provincial electricity-market reform scenarios and a constructed high-carbon reference, with unit-commitment, multi-day, Monte Carlo and auxiliary-regression checks. Emissions respond in thresholds rather than linearly, governed by an hourly switching-price distribution that is equivalent to an implied demand-side marginal abatement cost curve and coincides with the exact optimum. Three institutional gates—the allocation rule, the pass-through it implies, and the kinked free allowance—determine whether that curve operates, and none is the price level. The regression confirms that the price acts only through these gates, its effect on emission intensity reversing sign across allocation regimes. We read the rules as deliberate trade-offs sustaining industrial output and employment rather than as policy failure, and quantify the implicit subsidy they convey: a headline price of 100 CNY t−1 carries a revealed shadow value near 8. Allocation reform, not a higher price, restores the signal.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/en19215303first seen 2026-11-07 04:50:53
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