Distributed generation has become a viable option and is gaining wider acceptance to utilities, customers, and independent power producers. While DG offers many advantages, the utility typically requires system impact study for interconnecting DG to the existing electric grid to ensure it would not adversely impact the operation, reliability and safety of the grid. This course covers the technical aspects of DG integration from the viewpoint of both independent power producer and utility. Specific topics include: islanding, steady state power flow, voltage regulation, short-circuit, protective relaying, power quality (flicker and harmonic), power factor, system stability, grounding, and ground fault overvoltage.