再生可能エネルギー浸透が供給安全保障リスクと炭素排出に与える影響：二シナリオ比較モデル
The Effect of Renewable Energy Penetration on Supply Security Risk and Carbon Emissions: A Comparative Two-Scenario Model (原題)
Mehmet Rida Tur, Halil İbrahim Bülbül
🤖 gxceed AI 要約
日本語
年100TWhの電力需要を前提に、再エネ70%シナリオと30%シナリオを比較した研究。再エネ70%では排出量が47.05から22.45MtCO2eへ半減する一方、供給安全保障リスク指数は17.44から48.69へ上昇する。蓄電池・需要側柔軟性・系統増強・予備力・市場設計への補完投資なしには低炭素移行は信頼性を損なうと結論づける。
English
A two-scenario model compares 70% vs 30% renewable generation at 100 TWh annual demand. The high-renewable case cuts emissions from 47.05 to 22.45 MtCO2e/yr but raises a supply-security risk index from 17.44 to 48.69. The authors argue decarbonization requires complementary storage, flexibility, grid, reserve capacity, and market 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GX推進法・第7次エネルギー基本計画で再エネ比率引き上げと電力安定供給の両立が争点。本稿のトレードオフ定量化は、系統増強・蓄電池・需給調整市場の設計議論や、企業の再エネ調達(PPA)戦略のリスク評価に直接示唆を与える。
In the global GX context
Globally, this speaks to the ISSB/TCFD transition-plan credibility debate: decarbonization targets are only credible when paired with reliability and grid investment. It offers a simple quantitative frame for assessing whether renewable-heavy transition plans are operationally feasible, relevant to transition finance and CSRD/ISSB disclosure of transition risk.
👥 読者別の含意
🔬研究者:再エネ浸透と供給安定性のトレードオフを簡易モデルで定量化する手法と、その限界(指数の較正)を検討する出発点になる。
🏢実務担当者:再エネ調達比率を高める際、蓄電池・需給調整契約・系統制約を併せて評価すべきことを示す。
🏛政策担当者:再エネ導入目標を容量・排出量だけで評価せず、予備力・柔軟性・系統投資と一体で設計する必要性を示す。
📄 Abstract（原文）
Decarbonizing electricity generation is now a central component of energy policy, yet the operational consequences of high renewable energy penetration remain contested. Renewable energy reduces carbon emissions and can weaken exposure to fossil fuel price volatility and import dependence. At the same time, high shares of variable renewable generation may increase short-term supply security risks when storage, dispatchable reserve capacity, demand-side flexibility, and transmission infrastructure are insufficient. This study develops a two-scenario comparative model to examine the trade-off between carbon performance and operational supply security. Annual electricity demand is normalized at 100 TWh. Scenario A assumes that 70% of generation is supplied by renewable sources and 30% by coal and natural gas, whereas Scenario B assumes 30% renewable generation and 70% coal and natural gas generation. Carbon emissions are estimated using life-cycle emission factors, while operational supply security is represented by a normalized index that combines variable generation exposure, controllable capacity adequacy, and system flexibility. The results indicate that Scenario A produces 22.45 MtCO2e per year, compared with 47.05 MtCO2e per year in Scenario B. However, the operational supply security risk index increases from 17.44 in Scenario B to 48.69 in Scenario A. The findings suggest that renewable energy expansion should not be assessed only through installed capacity or emission reduction metrics. A low-carbon electricity transition requires complementary investment in storage, flexible demand, grid reinforcement, reserve capacity, and market designs capable of integrating variable generation without compromising system reliability.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1109/icsmartgrid70882.2026.11680859first seen 2026-09-15 04:50:04 · last seen 2026-09-21 04:57:15
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