グローバル・エンゲージメントは,再生可能エネルギーの導入における投資のギャップを縮める
Yusheng Guan1, Kangxin An1, Xinzhu Zheng2
1School of Environment, Tsinghua University, Beijing 100084, China.
iScience
|September 2, 2025
まとめ
グローバルエンゲージメント (GE) は再生可能エネルギーのコストを大幅に削減し,光伏 (PV) の17%,風力発電の48%に貢献しました. 国際協力は,世界の再生可能エネルギー目標と低炭素開発を達成するために不可欠です.
科学分野:
- エネルギー政策
- 経済学
- 環境科学
背景:
- 再生可能エネルギー技術,特に太陽光発電と風力発電は,大幅なコスト削減を経験しています.
- 国内での取り組み (NE) とグローバルでの取り組み (GE) による規模拡大は,これらのコスト減少の主な要因です.
研究 の 目的:
- 風力発電と太陽光発電の総設置コストの減少に,国家的な取り組み (NE) と世界的な取り組み (GE) の異なる貢献を定量化する.
- 将来の再生可能エネルギー目標を達成するための世界的な取り組みの影響を評価する.
主な方法:
- コストの動向を分析するために学習曲線モデルを使用しました.
- 国内と国際規模の成長の影響を区別するために反事実的推論を使用しました.
主要な成果:
- グローバル・エンゲージメント (GE) は,太陽光発電のコスト減少の17%,風力発電のコスト減少の48%を占めました.
- 大手製造業国 (例えば中国,インド,米国) では,国家的な努力 (NE) が優勢であった.
- 大規模な製造業のハブ以外の国でのエネルギー移行に GEは不可欠です
結論:
- グローバル・エンゲージメントは,特にハブ以外の国々で,世界中のエネルギー移行を支援するために不可欠です.
- 世界的な取り組みがなければ,2030年の再生可能エネルギー目標を達成するための投資のギャップは42%拡大するだろう.
- 国際協力は,地球規模のグリーン・低炭素開発を達成するために不可欠です.
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