Publication
Near Term Reliability and Resilience: Revisiting Resilience Metrics for the Electric Grid
Abstract
This report presents the metrics employed in the Near-Term Reliability and Resilience (NTRR) project to study the inter-dependencies between electric and natural gas infrastructures, particularly under challenging conditions. These metrics were developed and applied to evaluate the reliability and resilience of the electric grid and natural gas systems in near-term scenarios (within the next 10 years) involving extreme weather events and major supply disruptions. The report defines the metrics, explains how they are calculated, and describes the process by which they are used to evaluate reliability and resilience across simulated scenarios. It also demonstrates how the resilience metrics integrate with other project activities and summarizes the software tools deployed to calculate and visualize the results.
AI Summary
This report documents the reliability and resilience metrics used in the Near-Term Reliability and Resilience (NTRR) project to evaluate the coupled electric-grid and natural-gas infrastructures under near-term stress scenarios. It organizes the assessment framework around deterministic measures, including static security and dynamic security, and probabilistic measures such as Loss of Load Expectation, Expected Energy Not Served, and system-adequacy calculations based on component availability. The metrics are applied across simulated extreme-weather and major-supply-disruption scenarios and integrated with other NTRR modeling activities and software tools for calculation and visualization. The framework is designed to support consistent comparisons across electrical interconnections, natural-gas infrastructure, and different disturbance scenarios rather than relying on a single resilience indicator. Overall, the report provides a structured basis for comparing reliability and resilience outcomes while explicitly accounting for the interdependence of gas and electric systems.
Full Paper
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