Towards Risk Assessment of Smart Grids with Heterogeneous Assets

This article provides a framework to assist scenario-based risk assessment methods using a multi-directed graph model for representing asset-dependency model of smart grids with heterogeneous assets. First, asset categorization is presented to enable consideration of different nature of assets for smart grids risk assessment. Next, a web-based tool for visualizing the graph-based model of one or more infrastructure assets and dependencies is presented. The tool implements functionalities to assist in the development of cross-domain threat scenarios and to view level-wise cascading effect of a threat exploitation.