Equity-based grid resilience: How do we get there?

Lin, Yanling; Wang, Jianhui; Yue, Meng

doi:10.1016/j.tej.2022.107135

Cited by 23 publications

(7 citation statements)

References 24 publications

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“…Similarly, the 2017 Hurricane Maria in Puerto Rico left approximately 1.5 million people with no electricity for months. According to [6], socially into short-term operation challenges for resilience is still in early stages [13,14]. The majority of the existing distribution system restoration techniques prioritize restoring loads with large outage costs, and expansion planning approaches in power distribution systems prioritize areas with greater load growth projection, which are typically associated with high-income neighbourhoods.…”

Section: Background and Problem Descriptionmentioning

confidence: 99%

“…The effect of integrating equity into the restoration model for fair distribution of resources is summarized in Table 2, which displays the fold increase in  -Equitable and -Equitable Operation indices. Table 2 calculates the fold increase for all seven areas averaged over the time periods between line repairs, that is, t = 1 − 7 (line 13 and 24. The fold increase is obtained as the ratio of the equity index values between the equity-aware and cost-based restoration cases.…”

Section: Measuring Performance Via Fairness Indicesmentioning

confidence: 99%

“…A tariff design scheme is introduced in [12], which improves the operational savings in the system without hindering distributional equity. However, the inclusion of equity into short‐term operation challenges for resilience is still in early stages [13, 14].…”

Section: Introductionmentioning

confidence: 99%

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Equity‐aware power distribution system restoration

Rodriguez‐Garcia,

Hassan,

Parvania

2023

IET Generation Trans & Dist

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The efficient, reliable, and resilient supply of electricity has become essential for social and economic well‐being of the modern society. However, more frequent occurrence of extreme weather events has exposed inequity in the planning and operation practices of power distribution systems, evidenced in higher vulnerability and longer power interruptions for some parts of the grid as compared to others. This paper proposes an equity‐aware power distribution system restoration model in an effort to ensure a more equitable yet resilient power distribution operation after outages. To this end, the proposed equity‐aware distribution system restoration model balances the efficiency of the restoration operation and the equitable allocation of distributed energy resources among affected customers after an outage, while prioritizing the critical infrastructure (e.g. hospitals). The results demonstrate the effectiveness of the proposed framework to ensure a more equitable restoration process as measured by the proposed fairness and restoration performance indices.

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Section: Background and Problem Descriptionmentioning

confidence: 99%

Section: Measuring Performance Via Fairness Indicesmentioning

confidence: 99%

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Equity‐aware power distribution system restoration

Rodriguez‐Garcia,

Hassan,

Parvania

2023

IET Generation Trans & Dist

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“…The need for resilience is a pressing national issue across all infrastructure types, communities, and economic sectors (Hotchkiss and Dane 2019). Recent increases in the number and severity of acute weather events (e.g., storms) and human-caused incidents (e.g., cyberattacks) resulting in widespread, long-duration, and costly outages have brought resilience to the fore (Lin, Wang, and Yue 2022). A systems approach toward resilience is essential for capturing the linkages among environmental, social, economic, and security considerations (Fastiggi, Meerow, and Miller 2021;Roege et al 2014).…”

Section: Defining Resiliencementioning

confidence: 99%

Measuring and Valuing Resilience: A Literature Review for the Power Sector

Leddy,

Jenket,

Thomas

et al. 2023

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This document summarizes the current baseline of literature related to energy resilience metrics and valuation techniques. As this is a dynamic topic of research, however, this review necessarily provides a snapshot of current research as of mid 2023. This paper focuses on energy resilience; the rest of the document uses the term "resilience" as interdependent systems are a key consideration for resilience strategies. vii This report is available at no cost from the National Renewable Energy Laboratory (NREL) at www.nrel.gov/publications.

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“…These metrics are rooted in the number of people experiencing well-being loss and their recovery period. Lin et al [19] reviewed the literature on equity-based grid resilience. Despite well-known equity metrics in optimization models, many overlook their application to interconnected systems such as power grids [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Impact of Power Outages Depends on Who Loses It: Equity-Informed Grid Resilience Planning

Tutay,

Kutanoglu,

Hasenbein

2023

Preprint

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This research presents a novel approach for enhancing power grid resilience with a focus on social equity in light of increasing natural disasters. Utilizing a two-stage stochastic optimization model for flood mitigation investments, we optimize substation hardening and power flow decisions to minimize the weighted combination of expected load shed and expected equity metric. Our method uniquely approximates community power outages stemming from transmission grid disruptions, sidestepping the complexities of the distribution grid, and it incorporates two equity metrics (affected population and duration of loss) to address the uneven postdisaster well-being loss across communities. Our approach's novelty lies in integrating this equity-informed resilience model with realistic flood scenario generation and utilizing a large-scale synthetic but a realistic power grid of Texas. The findings highlight the importance of the composite objective function in altering power flow decisions to prioritize electricity provision and save communities in disadvantaged areas even without investing in substation hardening. The results also quantify the equity and load shed benefits of substation hardening as a function of the investment budget with a parameterized analysis. With an attention to equity, power outages increase in nonvulnerable communities — a trade-off made to mitigate well-being loss in the most vulnerable areas. We further explore a justice model inspired by the government's Justice40 initiative but find it less effective than our equity-informed models at preventing well-being loss. Our research, enriched by a comprehensive sensitivity analysis, offers valuable insights for policymakers, grid operators, and utilities aiming for a more resilient and equitable power grid.

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Equity-based grid resilience: How do we get there?

Cited by 23 publications

References 24 publications

Equity‐aware power distribution system restoration

Equity‐aware power distribution system restoration

Measuring and Valuing Resilience: A Literature Review for the Power Sector

Impact of Power Outages Depends on Who Loses It: Equity-Informed Grid Resilience Planning

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