Keeping the Lights On Across the Continent

Operators need new visualizations to help them monitor increasingly complex power grids at wider geographical scopes. We developed a work domain analysis of power grid operations from interviews, focus groups, and observations. The work domain analysis helped determine information requirements for a wide-area monitoring design concept that follows ecological interface design principles. We validated the design concept in a usability evaluation, achieving an above-benchmark System Usability Scale score of 77 out of 90. This work domain analysis and ecological interface design process will equally apply to the design of other power grid monitoring displays.