This paper provides a comprehensive overview of the microgrid (MG) concept, including its definitions, challenges, advantages, components, structures, communication systems, and control methods, focusing on low-bandwidth (LB), wireless (WL), and wired control approaches. NLR has been involved in the modeling, development, testing, and deployment of microgrids since 2001. A microgrid is a group of interconnected loads and distributed energy resources that acts as a single controllable entity with respect to the grid. The value of microgrids is further enhanced with issuance of FERC Order. Abstract: Non-wires alternatives and microgrid technologies are maturing and present great op-portunities for electric utilities to increase the benefits they offer to their customers.