Steiger, M.May, T.Davey, J.Kohlhammer, J.M. Pohl and H. Schumann2014-01-272014-01-272013978-3-905674-55-2https://doi.org/10.2312/PE.EuroVAST.EuroVA13.043-047This application paper introduces the combination of an expert system with a visualization system, specifically designed for SmartGrid control rooms. It supports operators in the efficient monitoring of electric grids with a focus on distributed, small-scale power generation. A rule-based expert system filters the stream of a large amount of incoming events, searching for potential problems. A multiple, coordinated view environment provides the required situational awareness for the user and presents the analysis results in a details-on-demand manner. Being a critical infrastructure, the electric grid is highly sensitive and any modification must be well justified. Our visualization system therefore also provides insight into the expert system enabling the user to validate and verify the expert system's analysis process. This provides the required decision support to assist the operator in keeping the grid in stable operating condition.H.5.2 [Information Interfaces and Presentation]User InterfacesUsercentered designI.2.1 [Computer Graphics]Applications and Expert SystemsIndustrial automationI.3.6 [Computer Graphics]Methodology and TechniquesInteraction techniquesJ.2 [Physical Sciences and Engineering]Electronics