Equity-Aware Load Shedding Optimization in Interdependent Power and Gas Networks Against Rising Temperatures

With increasing climate variability, extreme weather events like heatwaves pose significant challenges to the operation of interdependent power and gas networks. These events result in surges in electricity and gas demands, straining system capacity and disproportionately affecting vulnerable populations. To address these challenges, we propose an equity-aware operational co-optimization framework that enhances system resilience during heatwaves. The framework integrates dynamic line ratings and fragility-based de-rating of infrastructure to ensure reliable and equitable resource distribution. Additionally, we employ the Gini coefficient to quantify equity in load-shedding strategies, providing a robust measure of fairness in resource allocation. Utilizing a modified Alternating Direction Method of Multipliers (ADMM), we decouple the optimization of the power and gas systems, enabling coordinated yet decentralized operation. Through diverse operational scenarios, we demonstrate how cooperation between power and gas operators improves system performance, reduces operational costs, and enhances equity in resource allocation. The proposed framework provides actionable insights into managing integrated power and gas networks under climate-induced stresses, offering a pathway to more resilient and equitable energy systems.