高再生可能エネルギー移行のためのスマートエネルギーシステム計画枠組み：ガーナへの適用
A smart energy systems planning framework for high-renewable transitions in emerging energy systems: Application to Ghana (原題)
Laura Déniz-Díaz, Edward A. Awafo, José A. Carta, Pedro Cabrera
🤖 gxceed AI 要約
日本語
本研究は、急速に発展するエネルギーシステムにおける高再生可能エネルギー移行の計画課題に対し、スマートエネルギーシステム概念に基づく統合的計画枠組みを開発・適用した。ガーナを代表的事例として、コスト最小化とε制約法を用いて複数のシナリオを評価し、太陽光・風力・水力と蓄電池・フライホイール貯蔵の組み合わせを特定した。結果、CO2排出量を約3分の1に削減し、再生可能エネルギー比率を95%に高める経路を示した。
English
This study develops an integrated planning framework based on the Smart Energy Systems concept to address high-renewable transitions in emerging energy systems, using Ghana as a case study. Through cost minimization with epsilon-constraints, it evaluates scenarios combining PV, wind, and hydro with storage, achieving a 95% renewable share and reducing CO2 emissions by a factor of three. The findings offer practical insights for renewable integration and low-carbon strategies in Sub-Saharan Africa.
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、再生可能エネルギー導入拡大と系統安定化の課題が類似しており、本枠組みのストレージ計画や地域間融通の考え方は参考になる。ただし、日本の文脈ではSSBJや開示要件との直接的な関連は薄いが、エネルギー転換の定量的評価手法として示唆に富む。
In the global GX context
Globally, this paper contributes to the literature on energy transition planning in emerging economies, offering a replicable framework for integrating high shares of renewables with storage. It aligns with global decarbonization goals and provides evidence for policy-making in Sub-Saharan Africa, complementing disclosure-focused GX research with empirical planning insights.
👥 読者別の含意
🔬研究者:Provides a validated planning framework and scenario analysis for high-renewable transitions in emerging systems, useful for comparative studies.
🏢実務担当者:Offers a methodology for assessing renewable integration and storage needs, applicable to utility planning and project development.
🏛政策担当者:Highlights feasible pathways for achieving high renewable shares and emission reductions, informing national energy strategies.
📄 Abstract（原文）
This study addresses the challenge of planning high-renewable energy transitions in rapidly developing energy systems facing increasing energy demand, fossil-fuel dependence, structural constraints, and limited flexibility. To this end, it develops and applies an integrated planning framework grounded in the Smart Energy Systems concept to evaluate pathways towards high shares of renewable energy under realistic system constraints. Ghana is used as a representative case study to demonstrate the applicability of the proposed framework in a Sub-Saharan African context. The analysis combines the characterisation of the national energy system, assessment of renewable resource potential, analysis of socio-economic drivers, and construction of a validated reference model. Four baseline high-renewable scenarios and two cost-optimised scenarios were evaluated using cost minimisation subject to ε-constraint bounds on electricity imports and exports. This enabled the identification of feasible combinations of photovoltaic, wind, and hydropower generation, complemented by battery and flywheel storage, while maintaining realistic electricity exchange balances. The results show that the selected transition pathway can reduce carbon dioxide emissions by approximately a factor of three, decrease fuel consumption from 131.7 TWh to 75 TWh annually, increase the renewable share of electricity to 95%, and expand renewable generation from 7.7 TWh to 40.2 TWh per year. The findings provide practical insights for renewable integration, storage planning, regional electricity trade-offs, and low-carbon transition strategies in Sub-Saharan Africa and comparable contexts.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.renene.2026.126215first seen 2026-08-22 04:42:29
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