A microgrid is a cluster that includes localized semi-autonomous power, load and electric thermal energy storage facilities. Compared to a large grid, it is self-contained and controlled separately, and can be connected to the large grid and run on or off the grid. It operates on its own in an island mode. As a feature that provides two-way benefits to participants and traditional grids, the microgrid reflects the development direction of distributed power systems and also opens up a new path for the development of the grid. The following statements are consistent with the original:. ['The microgrid is a localized grid that operates in "island mode".', 'The microgrid is a cluster that runs on the grid with traditional grids.', 'The emergence of microgrids has dispersed the benefits of traditional grids.', 'Large grids may benefit from running in parallel with microgrids.']