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首页> 外文期刊>Energy for sustainable development >Techno-economic analysis of microgrid projects for rural electrification: A systematic approach to the redesign of Koh Jik off-grid case study
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Techno-economic analysis of microgrid projects for rural electrification: A systematic approach to the redesign of Koh Jik off-grid case study

机译：农村电气化微电网项目的技术经济分析：koh jik off-grid案例研究重新设计的系统方法

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摘要

The objective of this study was to redesign and refinance a rural microgrid on the small island of Koh Jilt in Thailand. A series of microgrid scenarios were modeled and evaluated using HOMER software with the aim of providing techno-economic insights on the sustainable redesign of a rural and resilient system. Existing assets were analyzed and integrated into a new system design, whereby the addition of extra PV panels and replacement of current lead-acid (LA) battery by a lithium-ion (Li-ion) battery increased the renewable fraction of electricity generation from an estimated 55%-83%. The system was optimized holistically to provide the lowest cost of electricity (LCOE) combined with the highest renewable fraction in order to attract private investment for such electricity access projects. A LCOE as low as 0.220 (sic)/kWh was obtained for Li-ion, compared to 0.307 (sic)/kWh for the LA basis translating into a project payback as low as 6.3 years (IRR 15.28%). All the modeling economics were cross-checked with a cash flow statement model using the island's financial books and current price of electricity (a common practice amongst private investors) and showed that the HOMER modeling results were within a range never exceeding 4%. Comparison of scenarios clearly outlined the advantages of Li-ion microgrids over LA in all aspects except capital expenditure, explaining why as of today, rural electrification projects still commission less sustainable LA systems due to initial capital constraints. While the battery CAPEX price per kWh storage was found still considerably lower for LA, in order to reach high renewable fractions (60% and up) larger battery banks are required, thus driving project costs higher and closer to Li-ion prices. Positive lessons learned from Koh Jilt case study can increase the confidence of both investors and governments while accelerating such initiatives in neighboring Southeast Asian countries or other territories around the world struggling with island electrification. (C) 2019 International Energy Initiative. Published by Elsevier Inc. All rights reserved.
机译：本研究的目的是重新设计和再融资在泰国的小岛上的一个农村微电网。使用HOMER软件建模和评估了一系列MicroGrid情景，目的是提供关于农村和弹性系统的可持续重新设计的技术经济见解。分析现有资产并集成到新的系统设计中，由此通过锂离子（Li-Ion）电池添加额外的PV面板并更换当前的铅酸（LA）电池（Li-ION）增加了来自的可再生电量估计55％-83％。该系统经整地优化，以提供最低的电力（LCoE）与最高可再生部队相结合，以吸引这种电力访问项目的私人投资。对于锂离子，获得低至0.220（SiC）/ kWh的LCoE，与La基础的0.307（SiC）/ kWh相比，转化为低至6.3岁（IRR 15.28％）。所有建模经济学都是通过使用该岛的金融书籍和当前电价（私人投资者之间的常见做法）与现金流陈述模型进行交叉检查，并显示荷马建模结果在永不超过4％的范围内。场景的比较明确概述了除资本支出外的所有方面的锂离子微电网的优势，为什么截至今天，由于初始资本限制，农村电气化项目仍然委托可持续的LA系统。虽然La仍然发现每千瓦时储存的电池支柱价格仍然很低，但为了达到高可再生的分数（60％及以上），需要更大的电池组，因此驾驶项目成本更高，更接近锂离子价格。从Koh Jilt案例研究中吸取的积极经验教训可以增加投资者和政府的信心，同时加速邻近邻国东南亚国家或世界各地其他领土的这些举措，与岛屿电气化斗争。 （c）2019年国际能源倡议。由elsevier Inc.出版的所有权利保留。

著录项

  • 来源
    《Energy for sustainable development》 |2020年第2期|1-13|共13页
  • 作者

    Veilleux Gabriel; Potisat Tanai; Pezim Daniel; Ribback Christian; Ling Jarmo; Krysztofinski Adam; Ahmed Afaq; Papenheim Jessica; Mon Pineda Astrid; Sembian Siva; Chucherd Sasinipha;

  • 作者单位

    Koh Jik Recharge Brinellvagen 66 S-11428 Stockholm Sweden|Univ Politecn Cataluna Jordi Girona 1 ES-08034 Barcelona Spain;

    Koh Jik Recharge Brinellvagen 66 S-11428 Stockholm Sweden|Eindhoven Univ Technol TU E NL-5612 AZ Eindhoven Netherlands;

    Koh Jik Recharge Brinellvagen 66 S-11428 Stockholm Sweden|Eindhoven Univ Technol TU E NL-5612 AZ Eindhoven Netherlands;

    Koh Jik Recharge Brinellvagen 66 S-11428 Stockholm Sweden|Univ Politecn Cataluna Jordi Girona 1 ES-08034 Barcelona Spain;

    Koh Jik Recharge Brinellvagen 66 S-11428 Stockholm Sweden|Inst Super Tecn Av Rovisco Pais 1 P-1049001 Lisbon Portugal;

    Koh Jik Recharge Brinellvagen 66 S-11428 Stockholm Sweden|Univ Politecn Cataluna Jordi Girona 1 ES-08034 Barcelona Spain;

    Koh Jik Recharge Brinellvagen 66 S-11428 Stockholm Sweden|Eindhoven Univ Technol TU E NL-5612 AZ Eindhoven Netherlands;

    Koh Jik Recharge Brinellvagen 66 S-11428 Stockholm Sweden|Inst Super Tecn Av Rovisco Pais 1 P-1049001 Lisbon Portugal;

    Koh Jik Recharge Brinellvagen 66 S-11428 Stockholm Sweden|Univ Politecn Cataluna Jordi Girona 1 ES-08034 Barcelona Spain;

    Koh Jik Recharge Brinellvagen 66 S-11428 Stockholm Sweden|Eindhoven Univ Technol TU E NL-5612 AZ Eindhoven Netherlands;

    Koh Jik Recharge Brinellvagen 66 S-11428 Stockholm Sweden|Eindhoven Univ Technol TU E NL-5612 AZ Eindhoven Netherlands;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Microgrid; Renewable energy; Techno-economic analysis; Off-grid resilience;

    机译：微电网;可再生能源;技术经济分析;离网弹性;

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