Microgrids are decentralized groups of electricity sources and loads that normally operate connected to and synchronous with the traditional wide area synchronous grid. They are best suited for local energy sources, in cases where the transmission and distribution of power from a centralized source is unfeasible. Such microgrids are called autonomous, standalone or isolated microgrids. They improve the security of power supply within the cell and can supply emergency power, altering between connected and island modes. Microgrids offer the potential for the electrification of remote rural areas and geographically small islands. This book elucidates the concepts and innovative models around prospective developments with respect to this model. The various studies that are constantly contributing towards advancing technologies and evolution of microgrids are examined in detail. This book is a vital tool for all researching and studying this field.