Bankability Assessment of Lithium-ion and Vanadium Redox Flow Batteries in Kenyan Hybrid Renewable Energy Systems
ケニアのハイブリッド再生可能エネルギーシステムにおけるリチウムイオン電池とバナジウムレドックスフロー電池のバンカビリティ評価 (AI 翻訳)
George Omondi Otieno Meyo, John Nderu, Lucas Mogaka
🤖 gxceed AI 要約
日本語
本研究は、ケニアの農村部ハイブリッド再生可能エネルギーシステムにおけるリチウムイオン電池とバナジウムレドックスフロー電池の投資採算性を比較評価した。Homer Proによる最適化、財務モデリング、LCA、AHPを統合した枠組みを適用。リチウムイオンは短期的な財務バンカビリティに優れる一方、バナジウムレドックスは環境負荷が低く長期運用に適する。バッテリーバンカビリティは技術性能だけでなく資金調達構造や割引率にも依存することを示した。
English
This study compares the bankability of lithium-ion and vanadium redox flow batteries in a rural Kenyan hybrid renewable energy system. Using an integrated framework of Homer Pro, financial modeling, LCA, and AHP, it finds that Li-ion offers better short-term financial bankability, while VRFB has lower environmental impact and longer lifetime. Bankability depends on both technical performance and financing structure.
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
本論文は直接日本のGX文脈に当てはまらないが、途上国における再エネ導入と蓄電池投資の判断材料として、日本のODAや民間投資の参考になり得る。
In the global GX context
This study provides evidence on how battery technology choice affects investment viability for hybrid renewable systems in Sub-Saharan Africa, a key region for global energy transition finance. It underscores the importance of aligning technology selection with financing structures to attract sustainable investment.
👥 読者別の含意
🔬研究者:Offers a comparative framework combining techno-economic, environmental, and financial assessment for battery storage in off-grid renewable systems.
🏢実務担当者:Provides actionable insights for project developers in Sub-Saharan Africa on the financial and environmental trade-offs between Li-ion and VRFB technologies.
🏛政策担当者:Informs policies for rural electrification financing, highlighting the role of concessionary and sustainability-oriented financing in enabling battery deployment.
📄 Abstract（原文）
Reliable and affordable electricity remains essential for rural development; however, in Sub-Saharan Africa (SSA), particularly Kenya, the major barrier to scalable rural electrification is increasingly the bankability gap, where technically feasible Hybrid Renewable Energy Systems (HRES) fail to attract sustainable investment. This study evaluates how battery storage technology selection influences investment viability by comparing lithium-ion (Li-ion) and vanadium redox flow battery (VRFB) systems in a rural Kenyan HRES. An integrated framework combining Homer Pro optimization, project-level financial modelling, Life Cycle Assessment (LCA), and AHP-based Multi-Criteria Decision Analysis (MCDA) was applied to assess techno-economic performance, environmental sustainability, and investor attractiveness. Results show that Li-ion systems achieve stronger short-term financial bankability, with lower Levelized Cost of Storage (LCOS) of KSh 23.17/kWh compared to KSh 28.32/kWh for VRFB systems, alongside higher baseline Investor Attractiveness Index (IAI). However, Li-ion technologies exhibit higher lifecycle environmental burden and replacement risk. In contrast, VRFB systems demonstrate lower emissions, longer operational lifetime, and stronger suitability under concessional and sustainability-oriented financing structures. Sensitivity analysis reveals that battery bankability depends not only on technical performance but also on financing structure, discount rate, and investor class.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.64470/elene.2026.36first seen 2026-07-27 04:55:40
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