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<p>The growth of electrical power outages increasingly harms consumers as they rely on electricity for a greater number of energy end-uses. To enhance grid resilience, backup power systems using distributed energy resources, combined into hybrid energy systems, can support entire distribution feeders cost-effectively during transmission outages. We develop and demonstrate a method to optimize the location and technology selection of hybrid energy systems for distribution grid outage mitigation at the feeder level, with both power flow and economic considerations. We demonstrate our framework on a synthetic, but realistic, test case and find that the required investment increases substantially when hybrid energy systems are installed across more locations. The minimal additional power required by the network is <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(1.5-2\%\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mn>1.5</mn> <mo>-</mo> <mn>2</mn> <mo>%</mo> </mrow> </math></EquationSource> </InlineEquation> for each new hybrid energy system location, and the necessary installed capacity increases by as much as <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(30\%\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mn>30</mn> <mo>%</mo> </mrow> </math></EquationSource> </InlineEquation>. These results indicate the need for decision-makers to tailor backup power distribution capacity to grid properties.</p>

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Minimum-cost grid distribution of backup power during long-duration outages

  • 期刊论文

  • 发表日期：

    2025年10月24日

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  • Arnav Gautam,
  • James Grymes,
  • Alexandra Newman,
  • Destenie Nock,
  • Amritanshu Pandey

摘要

The growth of electrical power outages increasingly harms consumers as they rely on electricity for a greater number of energy end-uses. To enhance grid resilience, backup power systems using distributed energy resources, combined into hybrid energy systems, can support entire distribution feeders cost-effectively during transmission outages. We develop and demonstrate a method to optimize the location and technology selection of hybrid energy systems for distribution grid outage mitigation at the feeder level, with both power flow and economic considerations. We demonstrate our framework on a synthetic, but realistic, test case and find that the required investment increases substantially when hybrid energy systems are installed across more locations. The minimal additional power required by the network is \(1.5-2\%\) 1.5 - 2 % for each new hybrid energy system location, and the necessary installed capacity increases by as much as \(30\%\) 30 % . These results indicate the need for decision-makers to tailor backup power distribution capacity to grid properties.