Techno-Economic Optimization of Diesel–PV Hybrid Systems for Isolated Island Grids: Case Study of Tomia Island, Indonesia
孤立島嶼グリッドにおけるディーゼル・PVハイブリッドシステムの技術経済的最適化：インドネシア・トミア島のケーススタディ (AI 翻訳)
Romi Adi Sanjaya Sebayang, Wawan Aries Widodo
🤖 gxceed AI 要約
日本語
インドネシアのトミア島を対象に、ディーゼル発電依存からの脱却を目指し、PV・BESS・ディーゼルのハイブリッド構成を技術経済的に最適化した。LEAPモデルを用いたシナリオ分析により、2.5MWpのPVと4MWhのBESSの組み合わせが、信頼性と投資コストのバランスに優れ、燃料消費と排出を大幅に削減できることを示した。経済評価でも投資回収期間が短く、実現可能性が高い。
English
This study optimizes a diesel-PV hybrid system for Tomia Island, Indonesia, using LEAP modeling. A 2.5 MWp PV with 4 MWh BESS offers the best balance of reliability, cost, and emissions reduction, cutting diesel use and carbon emissions while maintaining financial feasibility with a short payback period. The findings provide a practical pathway for energy transition in isolated island grids.
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
日本の離島や遠隔地の電源計画にも応用可能な知見であり、再生可能エネルギー導入の経済的評価手法として参考になる。特に、SSBJや有報での気候関連開示が進む中、再エネ投資の意思決定に資する。
In the global GX context
This case study offers a replicable framework for optimizing hybrid renewable systems in isolated grids, relevant to global energy transition efforts. It provides empirical evidence on cost-effective decarbonization, useful for informing investment decisions and policy in similar island or remote contexts.
👥 読者別の含意
🔬研究者:Provides a methodological example of combining resource assessment, land suitability, and LEAP modeling for hybrid system optimization.
🏢実務担当者:Offers a practical configuration (PV+BESS) with economic metrics that can guide project planning in remote or island energy systems.
🏛政策担当者:Demonstrates a cost-effective pathway to reduce diesel dependence, supporting policy for renewable energy adoption in isolated regions.
📄 Abstract（原文）
Tomia Island, an isolated power system in Wakatobi Regency, Indonesia, relies primarily on diesel power generation, resulting in high operating costs, fuel dependency, and greenhouse gas emissions. Although the island has abundant solar energy resources, determining an appropriate photovoltaic (PV) capacity that balances technical performance, economic feasibility, and land availability remains a key challenge. This study aims to identify the optimal hybrid PV–diesel configuration to support a reliable and sustainable electricity supply. The analysis combined solar resource assessment, land suitability evaluation, and energy system modeling using the Low Emissions Analysis Platform (LEAP). Several development scenarios were compared to identify the most suitable system configuration based on technical and economic performance. The results indicate that a 2.5 MWp PV system integrated with a 4 MWh Battery Energy Storage System (BESS) provides the best balance between renewable energy utilization, system reliability, and investment cost. Compared with larger PV capacities, this configuration delivers substantial reductions in diesel fuel consumption and carbon emissions while avoiding unnecessary increases in investment and excess energy production. In addition, the integration of BESS improves supply reliability by storing surplus solar energy and supplying electricity during periods of low solar generation. Economic evaluation confirms that the proposed hybrid system is financially feasible, offering a competitive cost of electricity and a relatively short investment payback period. These findings demonstrate that the proposed PV–BESS–diesel configuration provides a practical and cost-effective pathway for reducing diesel dependence and accelerating the energy transition in isolated island power systems
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.51747/energy.v16i2.p239-254first seen 2026-08-05 04:46:26
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