I. Introduction
Interconnected electric power systems are arguably the largest complex socio-technical systems ever built. Their design is guided by many functional models, such as technical [1], electro-physical, and social [2], which are nontrivial to inter-relate. When new functions such as economic markets are added, surprising conflicts can arise [3, p. 7]. Now, grids are integrating unprecedented weather-driven generation and societal electrification, requiring innovation in supervisory control. Such challenges have motivated efforts to standardize “smart” grid concepts to structure stakeholder interactions and even software architecture using conceptual modeling [4], [5].