気候不確実性下のメコン電力貿易における気候適応としての系統連系：タイ・ラオス・ベトナムの事例
Grid interconnectivity as climate adaptation in Mekong power trade under Climate Uncertainty: Case for Thailand – Lao PDR - Vietnam (原題)
Kim, Haein, Kim, Yong-Gun, Jung, Tae Yong, Kim, Eun Young
🤖 gxceed AI 要約
日本語
全球CGEモデルUNICON-Gと電力最適化モデルUNICON-POWERを反復ソフトリンクし、ラオス・タイ・ベトナムの水力発電劣化が脱炭素コストと電力価格に与える影響を分析した研究。2040年までに水力供給が約20%減少する気候ストレス下では、ベトナムでGDP損失が1.5〜2ポイント拡大し、ラオスも輸出減で約1ポイントの損失を被る。地域送電網の拡張は安価な電源へのアクセスを可能にし、脱炭素達成コストを部分的に緩和する適応策となり得ることを示す。
English
This study soft-links a global CGE model (UNICON-G) with a bottom-up power optimization model (UNICON-POWER) to assess hydropower degradation in Laos, Thailand, and Vietnam under deep decarbonization. A ~20% hydropower shortfall by 2040 raises mitigation costs and electricity prices, cutting Vietnam's GDP by an extra 1.5-2 points and Laos by ~1 point from lost exports. Expanded regional transmission partially offsets these losses by enabling access to lower-cost generation, positioning grid interconnectivity as a climate adaptation mechanism.
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GX政策にとって、気候変動による水力発電の供給変動が脱炭素コストと電力価格に波及するメカニズムは、国内の再エネ導入拡大と系統増強の経済性評価に示唆を与える。特に送電網拡張を適応策として位置づける視点は、広域系統運用や電力融通の政策議論に接続できる。
In the global GX context
For global disclosure and transition-finance scholarship, this paper quantifies how physical climate risk (hydrological uncertainty) transmits into mitigation costs, electricity prices, and sovereign GDP—evidence relevant to TCFD/ISSB physical-risk assessment and to transition-finance cases for grid infrastructure as adaptation. It also informs the ASEAN Power Grid debate on cross-border transmission as a resilience investment.
👥 読者別の含意
🔬研究者:CGEと電力最適化のソフトリンク手法と、気候ストレスが脱炭素コストへ波及する定量経路の実証例として参照できる。
🏢実務担当者:東南アジアで電力調達や事業展開を行う企業は、水力依存と送電制約に起因する電力価格・供給リスクを事業継続計画に織り込む根拠として活用できる。
🏛政策担当者:広域系統連系を気候適応策として評価し、越境送電投資の便益を政策設計に反映する際の定量的根拠となる。
📄 Abstract（原文）
Southeast Asia is one of the world's fastest-growing electricity markets, with increasing regional dependence on hydropower-based electricity trade through the ASEAN Power Grid. However, recent drought-induced power shortages in countries in the Mekong river basin have highlighted the vulnerability of regional power systems to climate-induced hydrological uncertainty. This study investigates the economic and energy-system impacts of hydropower degradation under deep decarbonization in Lao PDR, Thailand, and Vietnam, while evaluating the role of regional electricity trade as a potential adaptation mechanism. To capture interactions between macroeconomic adjustment and power-sector transformation, the analysis links a global computable general equilibrium (CGE) model, UNICON-G, with a bottom-up power system optimization model, UNICON-POWER, through an iterative soft-linking framework. Preliminary results show that hydropower degradation increases mitigation costs and raises electricity prices in importing countries, with impacts most pronounced in Vietnam, where both domestic hydropower generation and hydropower-based electricity imports play a significant role. Under climate stress—representing an approximately 20% reduction in hydropower availability by 2040—power sector mitigation costs increase, leading to higher electricity prices and reduced system flexibility. Higher electricity prices suppress electricity demand, constraining the role of electrification in supporting economy-wide decarbonization. As a result, Vietnam experiences additional GDP losses of about 1.5-2 percentage points compared with decarbonization alone, while Lao PDR faces losses (about 1 percentage point) from reduced hydropower exports. Expanded transmission partially offsets these impacts by facilitating access to lower-cost generation across regions, improving trade flexibility and reducing the overall cost of achieving decarbonization.
🔗 Provenance — このレコードを発見したソース
- Zenodo https://zenodo.org/records/24162050first seen 2026-11-13 04:13:11
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