RT Spotlight Zurich Presentation – Microgrids are enablers for distributed energy resources (DER) integration into the distribution systems. In order to optimize the utilization of the sources, optimize the operational costs and ensure resilience to faults on the grid, it utilizes complex control and protection systems for dispatch and transitions from and to gridconnected operation. In order to study the implementation of these systems, digital simulation technologies are used in the industry. As an extension to model-based design used upstream in the engineering workflow, the modeling and simulation approach can be extended to the use of Hardware-in-the-Loop testing using real-time simulators. This presentation will describe different modeling fidelity or approaches that can be applied to microgrid and power system integration studies as well as some simulation algorithms and tools available for that matter. The use of real-time simulators for testing the performance of controllers will be introduced with a focus on specific use-cases. Finally, real research and industrial applications using these studies and testing technologies will be presented to the audience.