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<p>A nation's development is often hindered by a lack of reliable electricity. Hybrid renewable energy systems (HRES) are vital in addressing this issue, especially amid global resource depletion and rising energy demands. Bangladesh, rich in renewable resources like solar, wind, and biomass, offers significant potential. This study analyzes an EV charging station powered by a grid-connected hybrid microgrid under scheduled outages, focusing on techno-economic analysis, optimal sizing, and stability. Using HOMER Pro and DIgSILENT PowerFactory, the system satisfies daily residential loads and EV charging loads. Incorporating PV, wind turbines, and BESS, the most demanding configuration is found in terms of cost of energy (COE), a net present cost (NPC), and CO<sub>2</sub> emissions. The results found as COE of $0.0714/kWh, a NPC of $1,822,653, and annual CO<sub>2</sub> emissions of 164,812&#xa0;kg. Daytime grid outages enhance renewable contributions and reduce emissions compared to nighttime outages. Additionally, reducing grid purchases boosts environmental benefits.</p>

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Assessment of a grid-connected microgrid for suburban areas and EV loads with battery storage during planned grid outages using DIgSILENT powerfactory

  • 期刊论文

  • 发表日期：

    2025年8月19日

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  • Md. Rasel Ahmed,
  • Md. Nimul Hasan,
  • Sk. A. Shezan,
  • Md. Fatin Ishraque,
  • Barun K. Das,
  • Mohammad Shahed H K Tushar

摘要

A nation's development is often hindered by a lack of reliable electricity. Hybrid renewable energy systems (HRES) are vital in addressing this issue, especially amid global resource depletion and rising energy demands. Bangladesh, rich in renewable resources like solar, wind, and biomass, offers significant potential. This study analyzes an EV charging station powered by a grid-connected hybrid microgrid under scheduled outages, focusing on techno-economic analysis, optimal sizing, and stability. Using HOMER Pro and DIgSILENT PowerFactory, the system satisfies daily residential loads and EV charging loads. Incorporating PV, wind turbines, and BESS, the most demanding configuration is found in terms of cost of energy (COE), a net present cost (NPC), and CO2 emissions. The results found as COE of $0.0714/kWh, a NPC of $1,822,653, and annual CO2 emissions of 164,812 kg. Daytime grid outages enhance renewable contributions and reduce emissions compared to nighttime outages. Additionally, reducing grid purchases boosts environmental benefits.