Adapting RIACT for Ice Storm Resilience of the Hydro-Québec Grid: A City-Level Approach
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This paper presents an adaptation and application of the Risk-Informed Asset-Centric (RIACT) process to analyze the resilience of a portion of Hydro-Québec's electric power grid against extreme ice storm risks, when supplying the densely populated Greater Montreal area, one of the power system’s major load centers. The key aspect consists in avoiding widespread or major blackouts and maintaining the functional performance of the area’s critical and essential services. The study identifies critical risks and asset exposures, analyzes potential solutions. The evaluation is aimed at deploying, on an urban grid, measures based on the PERA resilience stages: i) Preparation; ii) Endurance (Absorption); iii) Recovery; and iv) Adaptation. The proposed PERA plan aims to provide insights in implementing effective preventive measures while emphasizing the importance of monitoring, communication, and reporting throughout the process. By integrating resilience and asset management practices, this approach provides a simplified framework for managing risks associated with extreme weather events, ensuring the continuity of essential services.