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This paper presents first a review of the main issues associated to microgrids dealt with in the scientific literature. The different issues are classified and some examples of carried out studies are given for each issue. Then, a short review of existing experimental . . The Energy Systems Integration Facility (ESIF) is a national user facility located in Golden, Colorado, on the campus of the National Renewable Energy Laboratory (NREL). With funding from the EPRI GridEd program, we created our own small. . A microgrid is a group of interconnected loads and distributed energy sources as a single controllable entity with respect to the grid, used for power generation and energy storage. A microgrid is self-sustaining and can be operated in grid mode, or island mode where the system is disconnected from. . Brian Hayt is a product marketing manager for National Instruments specializing in the field of teaching electrical engineering. Brian works with electrical engineering professors globally to discuss and imple-ment new teaching methodologies, attempting to associate every theoretical concept to a. . For this project, two laboratory-scale microgrids (capable of <2 kW each) were designed and physically implemented. The second one a solid-state inverter-based microgrid.